[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[goldeneyeonline]

Exactly the configuration Leonardo (#141) and tim (#138) have, and for me the 4 
packages from daniel (#135) also did the trick :-)
Thanks!!!

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Leonardo Cerasi]

In Ubuntu 22.04.4 with NVidia driver 535.171.04 and windowing system
X11, I downloaded and installed the packages recommended in #135: after
a reboot, my terminal was fixed.

Thank you @vanvugt!

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[paradoxheart]

I enabled jammy-proposed, as well as following the guide on
https://wiki.ubuntu.com/Testing/EnableProposed to enable selective
upgrading from proposed, then ran the following command:

sudo apt install gir1.2-mutter-10/jammy-proposed libmutter-10-0/jammy-
proposed mutter-common/jammy-proposed

This installed the same set of packages mentioned in #135. After a
reboot, all of my issues with the terminal seem to have gone away. So
the fix looks good from here.

Anyone planning to install this fix from proposed should enable
selective upgrading unless they want to test every package currently in
proposed.

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Dimitris Moraitidis]

>You don't really need to enable jammy-proposed. Just download the 3
proposed packages:

I first tried to install these 3 packages, albeit not with the suggested
method of installing them all at once as a bundle with the dpkg command
proposed by Daniel, and I ended up with a broken desktop (was getting
some “Failed to start VirtualBox Linux kernel module…” errors on boot),
which I fixed running sudo apt install --reinstall ubuntu-gnome-
desktop).

Enabling jammy-proposed seems to have fixed the issue though. Thanks!

Using 550.78 nvidia driver

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[timclifford]

Downloading / installing the four packages vanvugt recommended in #135 +
a reboot fixed my terminal.

Thank you!

X11 / Nvidia 535.171.04 / Ubuntu 22.04.4

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[513G3]

Thank you Daniel.  I removed the now-overruled PPA from earlier in this
thread and directly installed those 4 packages on my 22.04 workstation.
Works great after a reboot.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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Re: [Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Marsh]

Daniel;

Thanks for the update.  Installed successfully and seems to be working fine
now.  I have put the packages on hold this time to prevent unintended
upgrades like the last week.

If you can't hear the dogwoods barking you're taking things too
seriously.


On Wed, May 15, 2024 at 1:30 AM Daniel van Vugt <2059...@bugs.launchpad.net>
wrote:

> You don't really need to enable jammy-proposed. Just download the 3
> proposed packages:
>
>  *
>
> https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8/+build/28435945/+files/gir1.2-mutter-10_42.9-0ubuntu8_amd64.deb
>
>  *
>
> https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8/+build/28435945/+files/libmutter-10-0_42.9-0ubuntu8_amd64.deb
>
>  *
>
> https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8/+build/28435945/+files/mutter-
> common_42.9-0ubuntu8_all.deb
> 
>
> and if you already had the 'mutter' package (which you don't need) then
> also:
>
>  *
>
> https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8/+build/28435945/+files/mutter_42.9-0ubuntu8_amd64.deb
>
> And install them as one:
>
>   sudo dpkg -i *.deb
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (2065489).
> https://bugs.launchpad.net/bugs/2059847
>
> Title:
>   Input lag or freezes on Nvidia desktops with X11 after logging
>   "MetaSyncRing: Sync object is not ready -- were events handled
>   properly?"
>
> Status in Mutter:
>   Fix Released
> Status in mutter package in Ubuntu:
>   Fix Released
> Status in mutter source package in Jammy:
>   Fix Committed
> Status in mutter source package in Mantic:
>   Fix Committed
> Status in mutter source package in Noble:
>   Fix Released
>
> Bug description:
>   [ Impact ]
>
>   Input or the entire screen may freeze at times on systems using the
>   Nvidia Xorg driver with GNOME.
>
>   [ Test Plan ]
>
>   0. Set up a desktop with Nvidia driver 545 or 550.
>   1. Log into Ubuntu, ensuring it's a Xorg session.
>   2. Open a Terminal, resize it vigorously, and type several lines of text.
>   3. Run: journalctl -b0 | grep MetaSyncRing
>   4. Verify the above command does NOT show "MetaSyncRing" messages such
> as:
>
>   Window manager warning: MetaSyncRing: Sync object is not ready -- were
> events handled properly?
>   Window manager warning: MetaSyncRing: Sync object is not ready -- were
> events handled properly?
>   Window manager warning: MetaSyncRing: Sync object is not ready -- were
> events handled properly?
>   Window manager warning: MetaSyncRing: Too many reboots -- disabling
>
>   [ Where problems could occur ]
>
>   Anywhere in Nvidia (proprietary driver) Xorg sessions since the code
>   being modified is only used with that driver.
>
>   [ Original Description ]
>
>   There is a noticeable delay in input while using the native terminal.
>   I belive it was caused by a recent software update, as this issue is
>   relatively new.
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 22.04
>   Package: ubiquity (not installed)
>   ProcVersionSignature: Ubuntu 6.5.0-26.26~22.04.1-generic 6.5.13
>   Uname: Linux 6.5.0-26-generic x86_64
>   NonfreeKernelModules: nvidia_modeset nvidia wl
>   ApportVersion: 2.20.11-0ubuntu82.5
>   Architecture: amd64
>   CasperMD5CheckResult: pass
>   CurrentDesktop: ubuntu:GNOME
>   Date: Sat Mar 30 19:57:13 2024
>   InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz
> file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
>   InstallationDate: Installed on 2024-03-30 (0 days ago)
>   InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64
> (20240220)
>   SourcePackage: ubiquity
>   Symptom: installation
>   UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mutter/+bug/2059847/+subscriptions
>
>

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

You don't really need to enable jammy-proposed. Just download the 3
proposed packages:

 *
https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8/+build/28435945/+files/gir1.2-mutter-10_42.9-0ubuntu8_amd64.deb

 *
https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8/+build/28435945/+files/libmutter-10-0_42.9-0ubuntu8_amd64.deb

 *
https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8/+build/28435945/+files/mutter-
common_42.9-0ubuntu8_all.deb

and if you already had the 'mutter' package (which you don't need) then
also:

 *
https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8/+build/28435945/+files/mutter_42.9-0ubuntu8_amd64.deb

And install them as one:

  sudo dpkg -i *.deb

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Donn Ingle]

@sladyo - Thanks. I hope I manage all that! Should I do this, or wait
for some official 22.04 solution? Don't want to further snafu the whole
thing.

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Steffen]

@donn-ingle Did you enable jammy-proposed first?

See the following posts:

- #92 by vorlon
- #115 by taisph

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Donn Ingle]

@sldayo Can you help? This is what I get:


$ sudo apt install gir1.2-mutter-10/jammy-proposed libmutter-10-0/jammy-proposed
[sudo] password for donn: 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package gir1.2-mutter-10 is not available, but is referred to by another 
package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

Package libmutter-10-0 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Release 'jammy-proposed' for 'gir1.2-mutter-10' was not found
E: Release 'jammy-proposed' for 'libmutter-10-0' was not found


Anyone got instructions for dummies for me ? :D

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Antoine L]

Ok, thanks for the thorough answer @egmont-gmail.
I fixed the issue for now as stated in my last comment though, so I'm gonna 
stay on 22.04 if it stays fixed.

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Egmont Koblinger]

> @egmont-gmail For users on 22.04, would you suggest upgrading to 24.04 as 
> well ?
> Is this something you would recommend or are there some important pitfalls to 
> know about beforehand ?

@toniopelo I cannot make a generic recommendation. It depends on your
circumstances, priorities, short-term goals, long-term goals, etc.

If, apart from this very issue, you're super happy with 22.04 and don't
plan to upgrade for many-many years, potentially jumping straight to
26.04 or 28.04, then I'd recommend to stay on 22.04, find a workaround
or wait patiently until the fix is properly released.

If you'd upgrade to 24.04 anyway, maybe in the following months, then
upgrading right now (and getting rid of this issue once and for all)
might not be a bad idea.

> I guess the right upgrade path would be to upgrade to 23.10 first and
then to 24.04.

As far as I know, it's either through all the releases (22.04 -> 22.10
-> 23.04 -> 23.10 -> 24.04) which is no longer possible as 22.10 and
23.04 have already EOL'ed; or from LTS to LTS, i.e. 22.04 -> 24.04. I
don't think other types of dist-upgrades are supported. I might be
wrong, though.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Antoine L]

@sldayo OMG, you got it right!
Finally this is fixed on my machine, thanks, A LOT.

Apparently it was upgrading mutter to the jammy-proposed version explicitly 
that caused the dependency removing mess, so your command works fine and only 
upgrade the necessary packages.
I can confirm, after a reboot everything is fine and no results from `sudo 
journalctl -b0 | grep MetaSyncRing`

So the right command to install the jammy-proposed fix is this one from
@sldayo (comment #127) :

`sudo apt install gir1.2-mutter-10/jammy-proposed libmutter-10-0/jammy-
proposed`

Then reboot and it works fine :).

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[GTBS, LLC]

I do not want to reinstall Ubuntu 22.04.4 just 3 months before I install
Ubuntu 24.04.1  Too much work.

OK. I bit the bullet (and it turned out to be not-that-painful).  From
the Jammy Proposed PPA, I installed:

 sudo apt install libmutter-10-0=42.9-0ubuntu8  
 sudo apt install gir1.2-mutter-10=42.9-0ubuntu8

and autoremoved everything it proposed.

I then rebooted normally, and was presented with a console terminal
screen (autoremove had removed gnome-shell, gdm, and a bunch of other
things).  How 1980s!

I then installed

 sudo apt install ubuntu-desktop

and  rebooted normally.

Everything seems to have returned AND no results from sudo journalctl
-b0 | grep MetaSyncRing

Hope this helps others.  :-)  Thanks Daniel for taking this seriously.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Steffen]

@toniopelo I don't know about others but I'm inclined toward waiting for
Ubuntu 24.04.1 because of my personal experience. I was eager to upgrade
to Ubuntu 24.04 for unrelated reasons but reverted to Ubuntu 22.04.4 due
to experiencing display/GPU issues that I didn't have before.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Antoine L]

@egmont-gmail For users on 22.04, would you suggest upgrading to 24.04 as well ?
I guess the right upgrade path would be to upgrade to 23.10 first and then to 
24.04.
Is this something you would recommend or are there some important pitfalls to 
know about beforehand ?

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Steffen]

In order to avoid removing vital packages when installing the proposed
package(s) on Ubuntu 22.04, I installed the following packages together:

sudo apt install gir1.2-mutter-10/jammy-proposed libmutter-10-0/jammy-
proposed

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Donn Ingle]

I don't understand how to re-fix this on 22.04 after the original PPA
fix — any instructions?

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Egmont Koblinger]

> The only thing that has worked for me is listed below
> 1. Reinstall Ubuntu LTS 22.04.4 without any upgrade or just don't connect it 
> to the internet.

To anyone who considers reinstalling the OS due to this issue (because
you messed up your system beyond repair, or whatever): Why not go for
24.04? This very issue is fixed there properly, and you save yourself
from a future upgrade. (Yes I know for LTS guys it's usually recommended
to wait for the .1 subrelease, but given the severity of this issue,
dist-upgrading right now might be a viable option to consider.)

To anyone on 23.10 which will EOL in 2 months anyway: Why not dist-
upgrade now?

Just my 2 cents. (I'm not trying to defend Ubuntu in this badly messed
up situation; I'm just trying to bring yet another possible solution to
its users' attention.)

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

Sorry for the delay and confusion. I was away for most of the last two
weeks.

It looks like a few things happened:

1. The security team inserted an update which took precedence over the
PPA. This is normal and correct. Just unlucky timing that I was away at
the same time AND the debdiff in comment #42 didn't get attention for a
month (also because much of the team are travelling).

2. Some people had packages automatically removed. I'm not sure what
caused this, it might have been the PPA or more likely might have been
all the manual hacking that's gone on here. And rightfully so -- it was
a bit of an emergency bug. But I've just tested upgrades to
42.9-0ubuntu8 in a fresh VM and cannot reproduce any upgrade issues. It
might be a good idea if everyone just purges the PPA and manually
installs the 42.9-0ubuntu8 packages...

3. People mistakenly install/upgrade 'mutter'/'mutter-common' alone when
really it's 'libmutter-10-0' that provides the fix. E.g. comment #96.

Overall it looks like the fix is sound and jammy has been verified by
comments #98 and #99.




** Tags removed: verification-needed-jammy
** Tags added: verification-done-jammy

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Sandy Patterson]

This appears to fix the issue for me on mantic (23.10) using the mantic-
proposed repo.

45.2-0ubuntu5 - for: gir1.2-mutter-13 libmutter-13-0 mutter-common
mutter

I did have to purge the ppa to get get to install. Maybe I did something
to get those vv version pinned.

I confirmed that I don't get the strange delay (the display persisted up
to 1-2s after I would hit a key sometimes).

I also confirmed that I don't see MetaSyncRing messages on this boot.
Oh, and I rebooted after installing the packages.

** Tags removed: verification-needed-mantic
** Tags added: verification-done-mantic

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Tanmoy Dasgupta]

Here is a temporary solution that I am using in a few Ubuntu 22.04
installations that I currently manage.

1) Open a TTY (Ctrl + Alt + F3)

2) Remove mutter-common: sudo apt remove mutter-common gir1.2-mutter-10
libmutter-10-0

This will remove a lot of other important packages. So basically you
will end up with a non-functional desktop. But TTY will thankfully still
work.

3) Add the test-fix ppa (if you haven't already): sudo add-apt-
repository ppa:vanvugt/mutter

4) Install specific versions of the affected packages: 
sudo apt install --allow-downgrades gir1.2-mutter-10=42.9-0ubuntu7vv1 
mutter-common=42.9-0ubuntu7vv1 libmutter-10-0=42.9-0ubuntu7vv1

5) Pin these packages:
sudo apt-mark hold mutter gir1.2-mutter-10 libmutter-10-0 libmutter-10-dev 
libmutter-test-10 mutter-10-tests mutter-common

6) Then install all the packages that went missing: 
sudo apt install ubuntu-desktop^

7) Update packages and then reboot:
sudo apt update && sudo apt upgrade

Let me know if this works. Thanks!

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[GTBS, LLC]

Antoine (@toniopelo), it is the same as for me.  I do not have Wayland
installed (mutter) - only X11 - and an upgrade of just mutter-common and
libmutter-10-0 from the Jammy Proposed PPA does NOT fix the issue.  As
soon as I try to install mutter (which I don't need or want), apt
proposes making massive deletions/changes to my install.  This is NOT an
option either.

Whatever Daniel van Vugt (vanvugt) created for dependencies on his
"temp" PPA worked and did not require the massive install changes and
fixed the problem.  The Jammy Proposed PPA has different dependencies
and makes it a non-option.

I add my request to please fix this, OR, create another temp PPA with
the same dependencies and a version that gets ahead in priority of the
current (not proposed) jammy PPA.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Donn Ingle]

I'm just running glxgears all the time :(

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Antoine L]

Nobody seems to care but as I stated several times in this thread, for
some people (including me) upgrading these packages will remove some
other packages that apparently need the former ones. This is not an
option.

See the output of `sudo apt-get install mutter/jammy-proposed
libmutter-10-0/jammy-proposed -s` on my computer in one of my previous
comments (#100) for details.

I would really appreciate somebody to give me a hand here, I don't have
that much xp with apt specifics so it might be obvious to some of you.

I use ubuntu as my main and only driver for my everyday dev work and it
is barely usable since one or two months now. I will have to change
distro if I don't find a quick solution as it is impacting vscode
intelliJ, terminal, browser responsivness and more.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[threadbareobserve]

I've been fighting with this bug for about 2 months now. 
I've tried the new mutter fixes but nothing seemed to work.

The only thing that has worked for me is listed below
1. Reinstall Ubuntu LTS 22.04.4 without any upgrade or just don't connect it to 
the internet.
2. After ubuntu install first thing you do is put a hold the mutter packages
   ```
   sudo dpkg -i *mutter*.deb
   echo libmutter-$package hold | sudo dpkg --set-selections
   ```
3. Upgrade NVIDIA to `nvidia-driver-535` proprietary.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Tais P. Hansen]

@mark You need to enable the proposed archive to get the packages I
mentioned. See https://wiki.ubuntu.com/Testing/EnableProposed. I highly
recommend using the "selective" approach.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Mark Erbaugh]

Ubuntu LTS 22.04.4

I ran Deku's script, from message 102 above:

sudo apt install -y --allow-downgrades \
gir1.2-mutter-10=42.9-0ubuntu7vv1 \
mutter-common=42.9-0ubuntu7vv1 \
libmutter-10-0=42.9-0ubuntu7vv1;

That cleared things up, no lag / MetaSyncRing errors, but Ubuntu now
wants to re-upgrade the packages back to 42.9-0ubuntu7.1

I tried installing the 0ubuntu8 packages from Tais in message 111, but
apt couldn't find them

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Roland65]

Using these packages seems to work:
https://bugs.launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Donn Ingle]

This is awful. 22.04 is back to being treacle again. Halp!

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Tais P. Hansen]

Installing the packages below seems to work for me (on Ubuntu 22.04.4,
X11, nvidia-550.78). No terminal lag is observed.

mutter=42.9-0ubuntu8
mutter-common=42.9-0ubuntu8
libmutter-10-0=42.9-0ubuntu8
gir1.2-mutter-10=42.9-0ubuntu8

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Tais P. Hansen]

I had to downgrade the mutter packages on Ubuntu 22.04.4 today as the
lag returned after the latest update. Did almost the same as Deku King
although opted to deprioritize the 42.9-0ubuntu7.1 packages instead of
locking the older ones.

Package: gir1.2-mutter-10
Pin: version 42.9-0ubuntu7.1
Pin-Priority: 1

Package: libmutter-10-0
Pin: version 42.9-0ubuntu7.1
Pin-Priority: 1

Package: mutter
Pin: version 42.9-0ubuntu7.1
Pin-Priority: 1

Package: mutter-common
Pin: version 42.9-0ubuntu7.1
Pin-Priority: 1

I have not tested proposed yet but will do that shortly.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[P.Constantine]

> The only subsequent versions of this package in official sources are 
> 42.9-0ubuntu7.1 (which was
just published by the security team)

And that "security" release fixed what exactly?

Let's see: https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu7.1

Ah, nothing, just a rebuild.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[JK]

> Here's the "fix" snippet folks:

Thanks a lot @Deku King! This bug is driving me crazy, since it affects
all parts of the GUI and makes my PC almost unusable. Except for gaming,
which is not affected. Hmm... maybe I should check if I accidentally
booted the wrong OS...

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Deku King]

> That is not an accurate description of the events here. This was an issue
> introduced in mutter 45.2-0ubuntu4 and 42.9-0ubuntu7. The only subsequent
> versions of this package in official sources are 42.9-0ubuntu7.1 (which was
> just published by the security team), and 45.2-0ubuntu5 nd 42.9-0ubuntu8
> which are the fixes that have just been accepted into the -proposed pocket.

> A fix in a test ppa is not an "official" source.


Ah, true true; thanks for the correction vorlon.

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[timclifford]

Still an issue. Amazed the fix hasn't landed on 22.04 yet. Anyone we can
bribe to get this addressed sooner?

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  Input lag or freezes on Nvidia desktops with X11 after logging
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Re: [Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Steve Langasek]

> First time I've experienced broken --> fixed --> broken (in exact manner
> as pre-fix) of a STANDARD package from OFFICIAL sources.

That is not an accurate description of the events here.  This was an issue
introduced in mutter 45.2-0ubuntu4 and 42.9-0ubuntu7.  The only subsequent
versions of this package in official sources are 42.9-0ubuntu7.1 (which was
just published by the security team), and 45.2-0ubuntu5 nd 42.9-0ubuntu8
which are the fixes that have just been accepted into the -proposed pocket.

A fix in a test ppa is not an "official" source.

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Antoine L]

Don't know why but I can't make this work.

---
$> sudo apt install -y -s --allow-downgrades gir1.2-mutter-10=42.9-0ubuntu7vv1 
mutter-common=42.9-0ubuntu7vv1 libmutter-10-0=42.9-0ubuntu7vv1

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package gir1.2-mutter-10 is not available, but is referred to by another 
package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

Package libmutter-10-0 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

Package mutter-common is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Version '42.9-0ubuntu7vv1' for 'gir1.2-mutter-10' was not found
E: Version '42.9-0ubuntu7vv1' for 'mutter-common' was not found
E: Version '42.9-0ubuntu7vv1' for 'libmutter-10-0' was not found
---

And question: if I downgrade these packages, will it still be
automatically upgraded when the fix is released, or will it stay pinned
to this particular version ?

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Mark Erbaugh]

Thanks Deku.

With just a very quick test (applied then rebooted), the snippet posted
above seems to be working for me with Ubuntu 22.04.4 LTS.

I had to add the apt option --allow-downgrades

Mark

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Deku King]

How on Earth did this get SNAFU'd again 

My goodness.
First time I've experienced broken --> fixed --> broken (in exact manner as 
pre-fix) of a STANDARD package from OFFICIAL sources.

This is nvidia-driver tier boobery.


Here's the "fix" snippet folks:
sudo apt install -y \
gir1.2-mutter-10=42.9-0ubuntu7vv1 \
mutter-common=42.9-0ubuntu7vv1 \
libmutter-10-0=42.9-0ubuntu7vv1;

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[andrey]

Hello JK (m0d), same sad behavior. 
Why i can't just downgrade 1 package via...
`sudo apt install libmutter-10-0=42.9-0ubuntu7vv1`
Many gnome packages will be removed after this downgrade.

May be someone have another solution for do this safely?
Ubuntu 22.04.4 now is unusable for my work purposes..

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  Input lag or freezes on Nvidia desktops with X11 after logging
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  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Antoine L]

Hi all, I'm new here and never done this before but I've done the
necessary to use the proposed packages because this bug is really really
annoying, making some stuff unusable.

I'm at the last step, when I should just upgrade my packages from
proposed, but I'm freaking out because upgrading `mutter` and
`libmutter-10-0` would apparently remove some unrelated (from my point
of view) packages I use daily.

Here is the output of my upgrade simulation:

---
$> sudo apt-get install mutter/jammy-proposed libmutter-10-0/jammy-proposed -s

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Selected version '42.9-0ubuntu8' (Ubuntu:22.04/jammy-proposed [amd64]) for 
'mutter'
Selected version '42.9-0ubuntu8' (Ubuntu:22.04/jammy-proposed [all]) for 
'mutter-common' because of 'mutter'
Selected version '42.9-0ubuntu8' (Ubuntu:22.04/jammy-proposed [amd64]) for 
'libmutter-10-0'
The following packages were automatically installed and are no longer required:
  gir1.2-accountsservice-1.0 gir1.2-adw-1 gir1.2-gck-1 gir1.2-gcr-3 
gir1.2-gdm-1.0 gir1.2-geoclue-2.0 gir1.2-gnomebluetooth-3.0 gir1.2-gpaste-1.0 
gir1.2-graphene-1.0 gir1.2-gtk-4.0 gir1.2-gweather-3.0
  gir1.2-json-1.0 gir1.2-nm-1.0 gir1.2-nma-1.0 gir1.2-upowerglib-1.0 
gnome-bluetooth-3-common gnome-shell-common gnome-shell-pomodoro-data 
gstreamer1.0-pipewire libgnome-bluetooth-3.0-13 switcheroo-control
  xwayland
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  mutter-common notification-daemon policykit-1-gnome python3-update-manager 
update-manager update-manager-core
The following packages will be REMOVED:
  chrome-gnome-shell gdm3 gir1.2-mutter-10 gnome-shell 
gnome-shell-extension-appindicator gnome-shell-extension-desktop-icons-ng 
gnome-shell-extension-gpaste gnome-shell-extension-ubuntu-dock
  gnome-shell-extensions-gpaste gnome-shell-pomodoro ubuntu-desktop 
ubuntu-desktop-minimal ubuntu-session
The following NEW packages will be installed:
  notification-daemon policykit-1-gnome
The following packages will be upgraded:
  libmutter-10-0 mutter mutter-common python3-update-manager update-manager 
update-manager-core
6 upgraded, 2 newly installed, 13 to remove and 0 not upgraded.
Remv chrome-gnome-shell [10.1-5]
Remv ubuntu-desktop [1.481.1]
Remv ubuntu-desktop-minimal [1.481.1]
Remv gdm3 [42.0-1ubuntu7.22.04.4]
Inst policykit-1-gnome (0.105-7ubuntu3 Ubuntu:22.04/jammy [amd64])
Inst notification-daemon (3.20.0-4build1 Ubuntu:22.04/jammy [amd64])
Remv gnome-shell-extension-ubuntu-dock [72~ubuntu5.22.04.2.1]
Remv gnome-shell-extension-desktop-icons-ng [43-2ubuntu1]
Remv gnome-shell [42.9-0ubuntu2.1] [gnome-shell-extension-gpaste:amd64 
gnome-shell-pomodoro:amd64 gnome-shell-extension-appindicator:amd64 
ubuntu-session:amd64 ]
Remv gir1.2-mutter-10 [42.9-0ubuntu7.1] [gnome-shell-extension-gpaste:amd64 
gnome-shell-pomodoro:amd64 gnome-shell-extension-appindicator:amd64 
ubuntu-session:amd64 ]
Remv gnome-shell-extension-appindicator [42-2~fakesync1] 
[gnome-shell-extension-gpaste:amd64 gnome-shell-pomodoro:amd64 
ubuntu-session:amd64 ]
Remv gnome-shell-extensions-gpaste [3.42.6-1] 
[gnome-shell-extension-gpaste:amd64 gnome-shell-pomodoro:amd64 
ubuntu-session:amd64 ]
Remv gnome-shell-extension-gpaste [3.42.6-1] [gnome-shell-pomodoro:amd64 
ubuntu-session:amd64 ]
Remv gnome-shell-pomodoro [0.20.0-3] [ubuntu-session:amd64 ]
Remv ubuntu-session [42.0-1ubuntu2]
Inst python3-update-manager [1:22.04.19] (1:22.04.20 Ubuntu:22.04/jammy-updates 
[all]) [update-manager-core:amd64 ]
Inst update-manager-core [1:22.04.19] (1:22.04.20 Ubuntu:22.04/jammy-updates 
[all]) [update-manager:amd64 ]
Inst update-manager [1:22.04.19] (1:22.04.20 Ubuntu:22.04/jammy-updates [all])
Inst mutter-common [42.9-0ubuntu7.1] (42.9-0ubuntu8 Ubuntu:22.04/jammy-proposed 
[all])
Inst libmutter-10-0 [42.9-0ubuntu7.1] (42.9-0ubuntu8 
Ubuntu:22.04/jammy-proposed [amd64])
Inst mutter [42.9-0ubuntu7.1] (42.9-0ubuntu8 Ubuntu:22.04/jammy-proposed 
[amd64])
Conf policykit-1-gnome (0.105-7ubuntu3 Ubuntu:22.04/jammy [amd64])
Conf notification-daemon (3.20.0-4build1 Ubuntu:22.04/jammy [amd64])
Conf python3-update-manager (1:22.04.20 Ubuntu:22.04/jammy-updates [all])
Conf update-manager-core (1:22.04.20 Ubuntu:22.04/jammy-updates [all])
Conf update-manager (1:22.04.20 Ubuntu:22.04/jammy-updates [all])
Conf mutter-common (42.9-0ubuntu8 Ubuntu:22.04/jammy-proposed [all])
Conf libmutter-10-0 (42.9-0ubuntu8 Ubuntu:22.04/jammy-proposed [amd64])
Conf mutter (42.9-0ubuntu8 Ubuntu:22.04/jammy-proposed [amd64])
---

Why is that and what should I do ?
Thanks, have a nice one.

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

To manage notifications about 

[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Michael Firmin]

Following mgruberb's advice of also installing libmutter-10-0 fixed the
issue for me as well. Thanks all!

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Michael Gruberbauer]

I tested the proposed fix for jammy and it did solve the issue for me. I
upgraded both the libmutter-10-0 and mutter package (which also installs
the updated dependencies listed below) and then rebooted. The
libmutter-10-0 dependency appears to be necessary to remove the lag
issues but the new version is not marked as required when installing
mutter/mutter-common. Therefore, only upgrading mutter does not resolve
the issue.

My policies:

mutter:
  Installed: 42.9-0ubuntu8
  Candidate: 42.9-0ubuntu8
  Version table:
 *** 42.9-0ubuntu8 100
100 /var/lib/dpkg/status
 42.9-0ubuntu7.1 500
500 http://at.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 
Packages
500 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 
Packages
 42.9-0ubuntu7vv1 500
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
amd64 Packages
 42.0-3ubuntu2 500
500 http://at.archive.ubuntu.com/ubuntu jammy/universe amd64 Packages

libmutter-10-0:
  Installed: 42.9-0ubuntu8
  Candidate: 42.9-0ubuntu8
  Version table:
 *** 42.9-0ubuntu8 100
100 /var/lib/dpkg/status
 42.9-0ubuntu7.1 500
500 http://at.archive.ubuntu.com/ubuntu jammy-updates/main amd64 
Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
 42.9-0ubuntu7vv1 500
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
amd64 Packages
 42.0-3ubuntu2 500
500 http://at.archive.ubuntu.com/ubuntu jammy/main amd64 Packages

gir1.2-mutter-10:
  Installed: 42.9-0ubuntu8
  Candidate: 42.9-0ubuntu8
  Version table:
 *** 42.9-0ubuntu8 100
100 /var/lib/dpkg/status
 42.9-0ubuntu7.1 500
500 http://at.archive.ubuntu.com/ubuntu jammy-updates/main amd64 
Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
 42.9-0ubuntu7vv1 500
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
amd64 Packages
 42.0-3ubuntu2 500
500 http://at.archive.ubuntu.com/ubuntu jammy/main amd64 Packages

mutter-common:
  Installed: 42.9-0ubuntu8
  Candidate: 42.9-0ubuntu8
  Version table:
 *** 42.9-0ubuntu8 100
100 /var/lib/dpkg/status
 42.9-0ubuntu7.1 500
500 http://at.archive.ubuntu.com/ubuntu jammy-updates/main amd64 
Packages
500 http://at.archive.ubuntu.com/ubuntu jammy-updates/main i386 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main i386 Packages
 42.9-0ubuntu7vv1 500
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
amd64 Packages
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
i386 Packages
 42.0-3ubuntu2 500
500 http://at.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
500 http://at.archive.ubuntu.com/ubuntu jammy/main i386 Packages

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Michael Firmin]

Also testing the proposed fix, and it did not solve the issue for me
after installing and rebooting. I am still getting significant lag in
the terminal. The recommendation from comment #36 had been working
perfectly until this morning.

$ sudo apt-cache policy mutter-common
mutter-common:
  Installed: 42.9-0ubuntu8
  Candidate: 42.9-0ubuntu8
  Version table:
 *** 42.9-0ubuntu8 100
100 /var/lib/dpkg/status
 42.9-0ubuntu7.1 500
500 http://ca.archive.ubuntu.com/ubuntu jammy-updates/main amd64 
Packages
500 http://ca.archive.ubuntu.com/ubuntu jammy-updates/main i386 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main i386 Packages
 42.9-0ubuntu7vv1 500
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
amd64 Packages
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
i386 Packages
 42.0-3ubuntu2 500
500 http://ca.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
500 http://ca.archive.ubuntu.com/ubuntu jammy/main i386 Packages

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Michael Firmin]

Also testing the proposed fix, and it did not solve the issue for me
after installing and rebooting. I am still getting significant lag in
the terminal. The recommendation from comment #36 had been working
perfectly until this morning.

$ sudo apt-cache policy mutter-common
mutter-common:
  Installed: 42.9-0ubuntu8
  Candidate: 42.9-0ubuntu8
  Version table:
 *** 42.9-0ubuntu8 100
100 /var/lib/dpkg/status
 42.9-0ubuntu7.1 500
500 http://ca.archive.ubuntu.com/ubuntu jammy-updates/main amd64 
Packages
500 http://ca.archive.ubuntu.com/ubuntu jammy-updates/main i386 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main i386 Packages
 42.9-0ubuntu7vv1 500
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
amd64 Packages
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
i386 Packages
 42.0-3ubuntu2 500
500 http://ca.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
500 http://ca.archive.ubuntu.com/ubuntu jammy/main i386 Packages

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[GTBS, LLC]

Testing of Latest Proposed mutter-common.  Installed and rebooted.
Unfortunately, the stutters in terminal have RETURNED.

$ sudo apt-cache policy mutter-common
mutter-common:
  Installed: 42.9-0ubuntu8
  Candidate: 42.9-0ubuntu8
  Version table:
 *** 42.9-0ubuntu8 400
400 http://us.archive.ubuntu.com/ubuntu jammy-proposed/main amd64 
Packages
400 http://us.archive.ubuntu.com/ubuntu jammy-proposed/main i386 
Packages
100 /var/lib/dpkg/status
 42.9-0ubuntu7.1 500
500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 
Packages
500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main i386 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main i386 Packages
 42.9-0ubuntu7vv1 500
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
amd64 Packages
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
i386 Packages
 42.0-3ubuntu2 500
500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
500 http://us.archive.ubuntu.com/ubuntu jammy/main i386 Packages

Once again, showing MetaSyncRing objects in the journal:

$ sudo journalctl -b0 | grep MetaSyncRing
May 10 07:27:28 desktop org.gnome.Shell.desktop[2876]: Window manager warning: 
MetaSyncRing: Sync object is not ready -- were events handled properly?
May 10 07:27:40 desktop gnome-shell[3681]: Window manager warning: 
MetaSyncRing: Sync object is not ready -- were events handled properly?
May 10 07:27:40 desktop gnome-shell[3681]: Window manager warning: 
MetaSyncRing: Sync object is not ready -- were events handled properly?
May 10 07:27:40 desktop gnome-shell[3681]: Window manager warning: 
MetaSyncRing: Sync object is not ready -- were events handled properly?
May 10 07:27:40 desktop gnome-shell[3681]: Window manager warning: 
MetaSyncRing: Too many reboots -- disabling

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Steve Langasek]

Hello Marek, or anyone else affected,

Accepted mutter into mantic-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/mutter/45.2-0ubuntu5
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
mantic to verification-done-mantic. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-mantic. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: mutter (Ubuntu Mantic)
   Status: In Progress => Fix Committed

** Tags added: verification-needed-mantic

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Steve Langasek]

Hello Marek, or anyone else affected,

Accepted mutter into jammy-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/mutter/42.9-0ubuntu8
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
jammy to verification-done-jammy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-jammy. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: mutter (Ubuntu Jammy)
   Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-jammy

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[JK]

OMG, what an incredibly stupid move by the ubuntu maintainers. I have
the same problem as anyone else who has been forcefully downgraded and I
tried to solve it by reverting to Daniel's version. However, this
"downgrade" would uninstall a lot of GNOME related packages (including
`gnome-shell`):

```
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libnvidia-cfg1-525 libnvidia-common-525 libnvidia-compute-525 
libnvidia-compute-525:i386 libnvidia-decode-525 libnvidia-decode-525:i386 
libnvidia-egl-wayland1
  libnvidia-encode-525 libnvidia-encode-525:i386 libnvidia-extra-525 
libnvidia-fbc1-525 libnvidia-fbc1-525:i386 libnvidia-gl-525 
libnvidia-gl-525:i386
  nvidia-compute-utils-525 nvidia-dkms-525 nvidia-driver-525 
nvidia-firmware-535-535.161.07 nvidia-utils-525 xserver-xorg-video-nvidia-525
Use 'apt autoremove' to remove them.
The following additional packages will be installed:
  notification-daemon policykit-1-gnome python3-update-manager update-manager 
update-manager-core
The following packages will be REMOVED:
  chrome-gnome-shell gdm3 gir1.2-mutter-10 gnome-control-center 
gnome-remote-desktop gnome-shell gnome-shell-extension-appindicator 
gnome-shell-extension-desktop-icons-ng
  gnome-shell-extension-prefs gnome-shell-extension-ubuntu-dock 
gnome-shell-extensions libmutter-10-0 ubuntu-desktop ubuntu-desktop-minimal 
ubuntu-session
The following NEW packages will be installed:
  notification-daemon policykit-1-gnome
The following packages will be upgraded:
  python3-update-manager update-manager update-manager-core
The following packages will be DOWNGRADED:
  mutter-common
3 upgraded, 2 newly installed, 1 downgraded, 15 to remove and 13 not upgraded.
Need to get 1.246 kB of archives.
After this operation, 15,0 MB disk space will be freed.
Do you want to continue? [Y/n]
```

Seems like we're stuck and have to wait for a proper fix ... again! I've
been using Ubuntu for about 20 years and have never been so close to
switching to a different distribution. The way they handle this bug is
absolutely ridiculous.

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Gabriel Simões]

Same for me.

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[GTBS, LLC]

Yep, same issue for me.  I have not applied this update yet:



From "apt changelog mutter-common" run just seconds ago:

mutter (42.9-0ubuntu7.1) jammy-security; urgency=medium

  * No-change rebuild in the -security pocket.

 -- Marc Deslauriers   Tue, 07 May 2024
17:12:45 -0400



From "apt-cache policy mutter-common "
mutter-common:
  Installed: 42.9-0ubuntu7vv1
  Candidate: 42.9-0ubuntu7.1
  Version table:
 42.9-0ubuntu7.1 500
500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 
Packages
500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main i386 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
500 http://security.ubuntu.com/ubuntu jammy-security/main i386 Packages
 *** 42.9-0ubuntu7vv1 500
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
amd64 Packages
500 https://ppa.launchpadcontent.net/vanvugt/mutter/ubuntu jammy/main 
i386 Packages
100 /var/lib/dpkg/status
 42.0-3ubuntu2 500
500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
500 http://us.archive.ubuntu.com/ubuntu jammy/main i386 Packages



Since there was "No Change" in the official version, can Daniel quickly
bump the version of his TEMP fix to "42.9-0ubuntu7.1vv1" (or equiv) so
it becomes the latest again and we can wait for the next update?

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Cristiano Fraga G. Nunes]

In Ubuntu 22.04, I just got an update for mutter (42.9-0ubuntu7.1),
replacing the one from @Daniel's PPA (42.9-0ubuntu7vv1).

However, the bug resurfaced with this new version.

Regrettably, it seems this update didn't include Daniel van Vugt's
proposed fix.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[why_hello_there]

Coincident with this bug, I'm experiencing other bugs, so I think they
may be related,

Is there a timeline on this merging to Jammy?

The other bugs:

* emacs is super laggy (500ms - 1000ms delays on typing)

* gnome-terminal of course (500ms - indefinite delays on typing)

* screen flickers and freezes on startup, and resolves after ~10s

* 50% of the time, screen never turns back on after suspend, requiring
hard reboot (Ctrl+REISUB)

* I get a random "System problem detected" after every startup

I'd rather catch this fix from the main PPA once it's been tested
enough, any timeline on it merging to Jammy?

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Gabriel Simões]

OS: Ubuntu 22.04.04 LTS
$XDG_SESSION_TYPE: x11
nVidia: 535.171.04

Yep, the system has improved significantly. I haven't noticed any laggy
behavior.

Thanks, Daniel!

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Gerhard Radatz]

OS: Ubuntu 22.04.04 LTS
$XDG_SESSION_TYPE: x11
nVidia: 535.171.04


This fix also solves an annoying flickering issue with IntelliJ Idea

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Gabriel Simões]

Hey guys... hey Daniel,

Do you guys know when the fix will officially be available for 22.4.04
LTS? Is it expected in the next few days or weeks, or will it take a
long time to happen?

Thanks a lot!

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Marsh]

I have been experiencing this problem since I updated on 4/22, been
away. After the update gnome-term is very slow to echo.

Dpkg:  
||/ Name Version   Architecture Description
+++--=--===>
ii  libmutter-10-0:amd64 42.9-0ubuntu7 amd64window manager library from>
in  libmutter-14-0   amd64(no description available)

Distributor ID: Ubuntu
Description:Ubuntu 22.04.4 LTS
Release:22.04
Codename:   jammy

Nvidia version 535.171.04

The PPA referred to in previous posts as a potential fix seems to have
done the trick.

Thanks.

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Peter Ryan]

Thanks - this fix appears to have resolved my lag issues.

OS: Ubuntu 22.04.04 LTS
$XDG_SESSION_TYPE: x11
nVidia: 535.171.04

Mobo/CPU: MSI MAG B550M BAZOOKA / AMD Ryzen 5 5600X
Video card: MSI GeForce GT1030 2GB PCI Express

Mostly this was affecting Gnome terminal for me, but just prior to
applying this patch (thanks again!!) I used GnuCash and that lagged too.

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  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Sergio Belevskij]

This does appear to fix the issue for me on 23.10

```
sudo add-apt-repository ppa:vanvugt/mutter
sudo apt update
sudo apt upgrade
sudo shutdown -R now
```

Thanks a lot for this fix!

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Peter Sabaini]

Just as a datapoint, the PPA has resolved my lag issues on my
Nvidia/xorg setup.

Thanks!


Details:

Ubuntu 22.04.4 LTS

modinfo nvidia
...
version:535.171.04


I had those `MetaSyncRing: Sync object is not ready -- were events handled 
properly?` journal entries as well, and did not reappear after PPA upgrade

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Slobodan Pavlic]

Hello Daniel,

Thank you so much for your hard work. I can confirm that, with your fix,
my machine is back to its usual snappy self.

OS:

Ubuntu 22.04.4 LTS
Gnome Version: 42.9
X11
Nvidia Driver 535.171.04

Hardware:

Lenovo ThinkPad P15 Gen 1
NVIDIA Corporation TU117GLM [Quadro T1000 Mobile]

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Brad Jascob]

This does appear to fix the issue for me on 22.4.04 LTS

sudo add-apt-repository ppa:vanvugt/mutter
sudo apt update
Then upgrade mutter-common, libmutter-10-0 and gir1.1-mutter-10 (I'm not 
certain if all 3 of these are required or not).
This will get you version 42.9-0ubuntu7
Reboot !! (required)

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Donn Ingle]

Thanks. Things feel better now.

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

> How do I get the new 46.0 release on Ubuntu 22.4.04 LTS?

You don't. Please use this instead:

https://launchpad.net/~vanvugt/+archive/ubuntu/mutter

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Donn Ingle]

$apt update .. etc.
$apt search mutter ...
mutter/jammy-updates,now 42.9-0ubuntu7 amd64 [installed,automatic]
  Example window manager using GNOME's window manager library

Seems I have "42.9". How do I get the new 46.0 release on Ubuntu 22.4.04
LTS?

Thanks!

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Launchpad Bug Tracker]

This bug was fixed in the package mutter - 46.0-1ubuntu7

---
mutter (46.0-1ubuntu7) noble; urgency=medium

  [ Daniel van Vugt ]
  * debian/control: mutter-common now breaks libmutter back to focal.
Because  we have dropped X11 fractional scaling support for now,
`org.gnome.mutter.x11.gschema.xml` is no longer shipped and those
older versions of libmutter will fail to start(LP: #2060423)
  * Add compositor-sync-ring-Allow-the-gpu_fence-to-be-moved.patch
to fix lag and freezes on the Nvidia Xorg driver (LP: #2059847)

 -- Jeremy Bícha   Tue, 16 Apr 2024 08:46:54 -0400

** Changed in: mutter (Ubuntu Noble)
   Status: Fix Committed => Fix Released

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

https://salsa.debian.org/gnome-
team/mutter/-/commit/6cf0e31b3e23556edfbba7669f97935ba118895a

** Changed in: mutter (Ubuntu Noble)
   Status: In Progress => Fix Committed

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

The Nvidia driver version and Mutter version are unrelated to each other
so that doesn't sound like a problem.

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Robin Bonicel]

I opened a similar bug and @vanvugt advised me to come here. 
I read everything and will try the PPA if need be. 

But I'm using a driver that nobody mentioned, which was selected by Dell who 
assembled the machine and installed the OS.
On Nvidia driver section, I'm using "Set the power ondemand mode by default 
from oem-fix-gfx-nvidia-ondemandmode". I also have drives 535 and 470 available 
in the menu, but when I install them, my default setting disappears. I had to 
fully reinstall the OS to get it back. Nvidia themselves advise on their 
download page to not necessarily use their proprietary drivers on some Linux 
distribs, so I stuck with my default driver. 

Will the PPA and the mutter downgrade be of use with this default setting ?
Also, installing proprietary pilot from the Software & update menu raised an 
error, so I aborted the process.

I'm running :

- Ubuntu 22.4.04 LTS
- GNOME 42.9 (latest official update)
- X11
- NVIDIA T400 4GB  

Thank you

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

On second thoughts, 46.1 might not make it into the main release so
let's patch this in for Noble.

** Changed in: mutter (Ubuntu Noble)
   Status: Fix Committed => In Progress

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

The fix will come as an automatic update in future.

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Donn Ingle]

Will this fix come out for 22.04.04 LTS ?

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Gonzalo Garramuno]

@vanvugt

I can confirm that the ppa solves the input lag on my system:

Ubuntu 22.04.4 LTS, using X11/GNOME and NVIDIA Driver Version:
535.147.05

Thank you.

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

There are no more "latest patches". The PPA is already the latest as it
contains the same fix as 42.9-0ubuntu8 and 45.2-0ubuntu5 will.

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  Input lag or freezes on Nvidia desktops with X11 after logging
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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Cristiano Fraga G. Nunes]

Hello Daniel van Vugt (@vanvugt)!

Would you mind applying your latest patches to your PPA? So we can test
the new packages.

- mutter_42.9-0ubuntu8.debdiff
- mutter_45.2-0ubuntu5.debdiff

Thanks,

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[JK]

Just want to add that the bug also affects GnuCash and basically makes
it unusable. The updated mutter from the PPA fixed it.

Ubuntu 22.04, Xorg and NVidia 535.171.04.

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Nickson Kaigi]

@vanvugt

I can confirm that the ppa solves the input lag on my system:

Ubuntu 22.04.4 LTS, using X11 and NVIDIA Driver Version: 525.147.05

Thank you.

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[threadbareobserve]

@gazhay
`
I agree. The input lag has not been fixed I am using X11 I don't even know what 
`MetaSyncRing` is I don't have any these logs. 

I've tried various NVIDIA drivers with no luck.

After a reboot it seems ok but over time it quickly starts to lag much
more.

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https://bugs.launchpad.net/bugs/2059847

Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[gazhay]

Came here to say that either there is another bug than the
"MetaSyncRing" bug or that is not a clear indicator of this bug.

Like others I had upgraded a couple of days ago and had horrible stutter
in vte based terminals, other apps were fine. Wayland resolved the
issue, but there are huge problems with Wayland in other ways so back to
x11 I had to go.

Installed the ppa from Daniel (vanvugt) with the versions of mutter
there and all problems have ceased.

But to re-itterate, I never had MetaSyncRing issues in any logs.

Just wanted to say thanks though, a very speedy fix from Daniel on
something which was impacting daily usability. Top work.

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

** Changed in: mutter (Ubuntu Jammy)
   Status: Fix Released => In Progress

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[threadbareobserve]

** Changed in: mutter (Ubuntu Jammy)
   Status: In Progress => Fix Released

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

Everyone should also pay attention to the date and time shown in the
output from 'journalctl -b0 | grep MetaSyncRing'. If you have installed
the PPA then we only care about timestamps after the PPA was installed
and after you logged in again to apply the change.

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https://bugs.launchpad.net/bugs/2059847

Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Thierry MACHICOANE]

Running "journalctl -b0 | grep MetaSyncRing", I confirm having this bug,
which appeared roughly 2 w-ago after classical update.

This implies lack of responsiveness (up to 2 seconds lags) in terminal
as well as in GUI, especially when dragging objects, scrolling, double-
clicking and so on.

Configuration:
 * 6.5.0-27-generic #28~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Mar 15 10:51:06 
UTC 2 x86_64 x86_64 x86_64 GNU/Linux
 * NVIDIA-SMI 535.161.07

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Egmont Koblinger]

> Upstream Gnome 46 made a lot of changes recently to improve
performance and input lag in Gnome-Terminal. Those changes are separate
from this bug.

Exactly.

> I don't know whether those changes were backported to Ubuntu 22.04,
which ships Gnome 42.

They weren't, and almost certainly won't be.

> the graphs are only talking about lag in the neighborhood of 40-50ms,
which is probably just barely perceptible.

Exactly. If anyone's having latency problems big enough that make them
follow this bug and try mutter packages from a PPA, then upgrading the
terminal won't fix them.

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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[Bug 2059847] Re: Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: Sync object is not ready -- were events handled properly?"

[Daniel van Vugt]

I'd like to resolve any confusion from the last 10 comments or so. This
bug is only for people who have "MetaSyncRing" messages in their system
log:

  journalctl -b0 | grep MetaSyncRing

like:

  Window manager warning: MetaSyncRing: Sync object is not ready -- were events 
handled properly?
  Window manager warning: MetaSyncRing: Sync object is not ready -- were events 
handled properly?
  Window manager warning: MetaSyncRing: Sync object is not ready -- were events 
handled properly?
  Window manager warning: MetaSyncRing: Too many reboots -- disabling

If you don't have any MetaSyncRing messages then please open new bugs.


** Summary changed:

- Input lag or freezes on Nvidia desktops with X11
+ Input lag or freezes on Nvidia desktops with X11 after logging "MetaSyncRing: 
Sync object is not ready -- were events handled properly?"

** Description changed:

  [ Impact ]
  
  Input or the entire screen may freeze at times on systems using the
  Nvidia Xorg driver with GNOME.
  
  [ Test Plan ]
  
  0. Set up a desktop with Nvidia driver 545 or 550.
  1. Log into Ubuntu, ensuring it's a Xorg session.
  2. Open a Terminal, resize it vigorously, and type several lines of text.
- 3. Verify that input never froze for any perceptible period of time.
- 4. Run: journalctl -b0 | grep MetaSyncRing
- 5. Verify the above command does NOT show messages such as:
+ 3. Run: journalctl -b0 | grep MetaSyncRing
+ 4. Verify the above command does NOT show "MetaSyncRing" messages such as:
  
  Window manager warning: MetaSyncRing: Sync object is not ready -- were events 
handled properly?
  Window manager warning: MetaSyncRing: Sync object is not ready -- were events 
handled properly?
  Window manager warning: MetaSyncRing: Sync object is not ready -- were events 
handled properly?
  Window manager warning: MetaSyncRing: Too many reboots -- disabling
  
  [ Where problems could occur ]
  
  Anywhere in Nvidia (proprietary driver) Xorg sessions since the code
  being modified is only used with that driver.
  
  [ Original Description ]
  
  There is a noticeable delay in input while using the native terminal. I
  belive it was caused by a recent software update, as this issue is
  relatively new.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 6.5.0-26.26~22.04.1-generic 6.5.13
  Uname: Linux 6.5.0-26-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia wl
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 30 19:57:13 2024
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed 
maybe-ubiquity quiet splash ---
  InstallationDate: Installed on 2024-03-30 (0 days ago)
  InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64 
(20240220)
  SourcePackage: ubiquity
  Symptom: installation
  UpgradeStatus: No upgrade log present (probably fresh install)

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Title:
  Input lag or freezes on Nvidia desktops with X11 after logging
  "MetaSyncRing: Sync object is not ready -- were events handled
  properly?"

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