[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2024-01-15 Thread Launchpad Bug Tracker
This bug was fixed in the package mutter - 45.2-0ubuntu3

---
mutter (45.2-0ubuntu3) mantic; urgency=medium

  [ Jeremy Bícha ]
  * Revert roll back to 45.0-3ubuntu3.1

  [ Daniel van Vugt ]
  * Update Support-Dynamic-triple-double-buffering.patch
with a fix to the frame clock for a regression inherited from
45.1 (8f27ebf8) whereby it would enter triple buffering mode
prematurely. And because it was premature, the clock would soon
notice that triple buffering isn't required and drop back to double
buffering. But the switch from triple to double buffering stalls the
client frame queue by one frame which for some clients like Firefox
is seen as a frame skip. (LP: #2046360)

mutter (45.2-0ubuntu2~really45.0) mantic; urgency=medium

  * Roll back to address regression LP: #2046360.
- Full revert to mutter 45.0-3ubuntu3.1, with revert implemented under
  debian/patches to avoid having to keep around confusing version numbers
  for very long.
- mutter 45.2 introduces new library symbols vs 45.0 but no packages
  have picked up dependencies on these symbols yet via rebuilds, and all
  binary packages built from mutter source have a strict versioned
  dependency on the library package; so a straight revert of the symbols
  file is possible without the need to add any additional Breaks.

mutter (45.2-0ubuntu1) mantic; urgency=medium

  [ Jeremy Bícha ]
  * New upstream release (LP: #2043000)
- Fix entering capital accent letters with Caps Lock (LP: #2035076)
- Fix Wacom on X11 issues (LP: #2043027)
  * debian/libmutter-13-0.symbols: Add new symbols
  * Drop patches applied in new release
  * Rebase X11 fractional scaling patch

  [ Daniel van Vugt ]
  * Rebase triple buffering patch

 -- Jeremy Bícha   Tue, 02 Jan 2024 08:28:40 -0500

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

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  Heavy stuttering in Firefox with mutter 45.1/45.2

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2024-01-07 Thread Daniel van Vugt
Fix verified on mantic using version 45.2-0ubuntu3 and the test case at
the top of the page.

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

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2024-01-05 Thread Steve Langasek
Hello Daniel, or anyone else affected,

Accepted mutter into mantic-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/mutter/45.2-0ubuntu3
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 removed: verification-done-mantic
** Tags added: verification-needed-mantic

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2024-01-02 Thread Jeremy Bícha
I am reopening this bug because I am reuploading mutter 45.2 for mantic
and we need to verify that this bug does not return with the new update.

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

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-20 Thread Launchpad Bug Tracker
This bug was fixed in the package mutter - 45.2-0ubuntu2~really45.0

---
mutter (45.2-0ubuntu2~really45.0) mantic; urgency=medium

  * Roll back to address regression LP: #2046360.
- Full revert to mutter 45.0-3ubuntu3.1, with revert implemented under
  debian/patches to avoid having to keep around confusing version numbers
  for very long.
- mutter 45.2 introduces new library symbols vs 45.0 but no packages
  have picked up dependencies on these symbols yet via rebuilds, and all
  binary packages built from mutter source have a strict versioned
  dependency on the library package; so a straight revert of the symbols
  file is possible without the need to add any additional Breaks.

 -- Steve Langasek   Sun, 17 Dec 2023
19:44:15 -0800

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

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-20 Thread Launchpad Bug Tracker
This bug was fixed in the package mutter - 45.2-3ubuntu1

---
mutter (45.2-3ubuntu1) noble; urgency=medium

  * Merge with Debian. Remaining changes:
- Add x11-Add-support-for-fractional-scaling-using-Randr.patch
- Add window-Add-ability-to-override-the-edge-constraints.patch
  + Make possible for extensions (such as Tiling Assistant) to override
window constraints

mutter (45.2-3) experimental; urgency=medium

  [ Daniel van Vugt ]
  * Update Support-Dynamic-triple-double-buffering.patch
with a fix to the frame clock for a regression inherited from
45.1 (8f27ebf8) whereby it would enter triple buffering mode
prematurely. And because it was premature, the clock would soon
notice that triple buffering isn't required and drop back to double
buffering. But the switch from triple to double buffering stalls the
client frame queue by one frame which for some clients like Firefox
is seen as a frame skip. (LP: #2046360)

mutter (45.2-2) experimental; urgency=medium

  * Team upload

  [ Chris Hofstaedtler ]
  * Honor udev.pc's udevdir when installing udev rules (Closes: #1057319)

  [ Simon McVittie ]
  * Merge with version 44.7-1 from unstable
  * d/control, d/rules: Stop generating d/control from d/control.in
  * d/patches: Mark several additional tests as flaky.
Most of these have never been reliable on Debian buildds, especially
on ARM, so having them fail is not a regression. They usually succeed
after a few retries, but that's time-consuming and unsuitable to be a
QA gate.
The restore-size test was previously not run at all: now it is run, but
marked as flaky (so its result is ignored).

 -- Jeremy Bícha   Wed, 20 Dec 2023 09:32:48 -0500

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

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Title:
  Heavy stuttering in Firefox with mutter 45.1/45.2

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-20 Thread Daniel van Vugt
** Description changed:

  [ Impact ]
  
  There is heavy stuttering visible in Firefox with mutter 45.1/45.2 when
  kinetic scrolling a non-animated web page with a touchpad. This is a
  regression introduced upstream in mutter 45.1 (8f27ebf8).
  
  [ Test Plan ]
  
  0. Find a laptop with a touchpad.
  1. Open a simple web page like a Wikipedia page in Firefox.
  2. Use two fingers on the touchpad to fling it so it continues scrolling.
  
  Expect: The scrolling proceeds and slows perfectly smoothly.
  
  [ Where problems could occur ]
  
  Anywhere in frame scheduling (visual smoothness), since that is the code
  affected.
  
  [ Other Info ]
  
  The bug was introduced upstream in 45.1 by
  
https://gitlab.gnome.org/GNOME/mutter/-/commit/8f27ebf87eee6057992a90560d4118ab7bdf138d
  but since it only hurts the triple buffering patch, that's where it has
  been fixed:
  
  
https://gitlab.gnome.org/Community/Ubuntu/mutter/-/commit/0b896518b2028d9c4d6ea44806d093fd33793689
  
https://gitlab.gnome.org/Community/Ubuntu/mutter/-/commits/triple-buffering-v4-45
  
  [ Workaround ]
  
  In /etc/environment:
  
    MUTTER_DEBUG_TRIPLE_BUFFERING=always
  
- or "never" also works. Just not "auto".
+ or "never" also works. Just not "auto" because the bug is in auto mode
+ (the default).

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-20 Thread Daniel van Vugt
Proposed fix for 45.2 (we usually go through Debian first because that's where 
the patch is maintained):
https://salsa.debian.org/gnome-team/mutter/-/merge_requests/114

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-20 Thread Daniel van Vugt
Also verified fixed in mantic using version 45.2-0ubuntu2~really45.0 and
the test case that's now in the Bug Description above.

** Description changed:

  [ Impact ]
  
  There is heavy stuttering visible in Firefox with mutter 45.1/45.2 when
  kinetic scrolling a non-animated web page with a touchpad. This is a
  regression introduced upstream in mutter 45.1 (8f27ebf8).
  
  [ Test Plan ]
  
  0. Find a laptop with a touchpad.
  1. Open a simple web page like a Wikipedia page in Firefox.
  2. Use two fingers on the touchpad to fling it so it continues scrolling.
  
  Expect: The scrolling proceeds and slows perfectly smoothly.
  
  [ Where problems could occur ]
  
  Anywhere in frame scheduling (visual smoothness), since that is the code
  affected.
  
  [ Other Info ]
  
- Since the bug only hurts the triple buffering patch, that's where it has
- been fixed upstream:
+ The bug was introduced upstream in 45.1 by
+ 
https://gitlab.gnome.org/GNOME/mutter/-/commit/8f27ebf87eee6057992a90560d4118ab7bdf138d
+ but since it only hurts the triple buffering patch, that's where it has
+ been fixed:
  
  
https://gitlab.gnome.org/Community/Ubuntu/mutter/-/commit/0b896518b2028d9c4d6ea44806d093fd33793689
  
https://gitlab.gnome.org/Community/Ubuntu/mutter/-/commits/triple-buffering-v4-45
  
  [ Workaround ]
  
  In /etc/environment:
  
    MUTTER_DEBUG_TRIPLE_BUFFERING=always
  
  or "never" also works. Just not "auto".

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-20 Thread Daniel van Vugt
** Description changed:

- There is heavy stuttering visible in Firefox with mutter 45.1/45.2. This
- is a regression introduced upstream in mutter 45.1 (8f27ebf8), although
- it only hurts the triple buffering patch so that's where it's fixed:
+ [ Impact ]
+ 
+ There is heavy stuttering visible in Firefox with mutter 45.1/45.2 when
+ kinetic scrolling a non-animated web page with a touchpad. This is a
+ regression introduced upstream in mutter 45.1 (8f27ebf8).
+ 
+ [ Test Plan ]
+ 
+ 0. Find a laptop with a touchpad.
+ 1. Open a simple web page like a Wikipedia page in Firefox.
+ 2. Use two fingers on the touchpad to fling it so it continues scrolling.
+ 
+ Expect: The scrolling proceeds and slows perfectly smoothly.
+ 
+ [ Where problems could occur ]
+ 
+ Anywhere in frame scheduling (visual smoothness), since that is the code
+ affected.
+ 
+ [ Other Info ]
+ 
+ Since the bug only hurts the triple buffering patch, that's where it has
+ been fixed upstream:
  
  
https://gitlab.gnome.org/Community/Ubuntu/mutter/-/commit/0b896518b2028d9c4d6ea44806d093fd33793689
  
https://gitlab.gnome.org/Community/Ubuntu/mutter/-/commits/triple-buffering-v4-45
  
  [ Workaround ]
  
  In /etc/environment:
  
    MUTTER_DEBUG_TRIPLE_BUFFERING=always
  
  or "never" also works. Just not "auto".

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Title:
  Heavy stuttering in Firefox with mutter 45.1/45.2

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-19 Thread Andreas Hasenack
mantic verification

I used mutter from mantic-proposed:
andreas@nsnx2:~$ apt-cache policy mutter
mutter:
  Installed: 45.2-0ubuntu2~really45.0
  Candidate: 45.2-0ubuntu2~really45.0
  Version table:
 *** 45.2-0ubuntu2~really45.0 100
100 http://br.archive.ubuntu.com/ubuntu mantic-proposed/universe amd64 
Packages
100 /var/lib/dpkg/status
 45.2-0ubuntu1 500 (phased 0%)
500 http://br.archive.ubuntu.com/ubuntu mantic-updates/universe amd64 
Packages
 45.0-3ubuntu3 500
500 http://br.archive.ubuntu.com/ubuntu mantic/universe amd64 Packages


I installed gnome-session gnome-shell-extensions. I did not install budgie, 
because the test plan at https://wiki.ubuntu.com/DesktopTeam/TestPlans/Mutter 
says it's not needed for 23.10.

Each login, I selected a different session from this list: GNOME, GNOME
Classic, Ubuntu, Ubuntu on Xorg.

In each session, I did:
- play 4k youtube video in full screen in firefox and chrome. For the next 
steps, I left firefox playing that video while conducting the other checks
- verified that firefox was using hardware acceleration (chrome isn't, that's 
known)
- sent a notification via notify-send, observed it was displayed
- did a large file copy with the file manager. First, locally, then over the 
network using SMB.

I did not observe any stuttering during these verifications, nor any
other ill effect.

The hardware this was tested on is a ThinkPad X1 Carbon Gen 10 with an
Intel Alderlake_p (Gen12) video system.


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

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-19 Thread Andreas Hasenack
The DEP8 tests are green now.

I'm going to verify this revert for mantic, which is currently in 
mantic-proposed. But note I have NOT been able to reproduce the stuttering in 
firefox with the mutter package from mantic-updates (45.2-0ubuntu1). I tried:
- wayland
- xorg
- native resolution (2880x1800)) and 1920x1200
- youtube playback, full screen, windows, 4k resolution. I also observed 
hardware acceleration was being used
- I have even set MUTTER_DEBUG_TRIPLE_BUFFERING to "auto" in /etc/environment, 
which is what the bug description says should NOT be done.

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-17 Thread Chris Halse Rogers
Hello Daniel, or anyone else affected,

Accepted mutter into mantic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/mutter/45.2-0ubuntu2~really45.0 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: New => Fix Committed

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

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-17 Thread Steve Langasek
** Changed in: mutter (Ubuntu)
   Importance: Undecided => High

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-15 Thread Andreas Hasenack
I see this was filed on the 13th. Had this been mentioned in the 45.2
mantic SRU bug[1], I wouldn't have released the package to updates on
the 14th :/


1. https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2043000

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-15 Thread Daniel van Vugt
** Tags removed: regression-proposed
** Tags added: regression-update

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[Bug 2046360] Re: Heavy stuttering in Firefox with mutter 45.1/45.2

2023-12-13 Thread Daniel van Vugt
** Summary changed:

- Heavy stuttering in mutter 45.1/45.2 (especially Firefox)
+ Heavy stuttering in Firefox with mutter 45.1/45.2

** Description changed:

- There is heavy stuttering in mutter 45.1/45.2 (especially Firefox)
- 
- This is a regression introduced upstream in mutter 45.1, although it
- only hurts the triple buffering patch so that's where it's fixed:
+ There is heavy stuttering visible in Firefox with mutter 45.1/45.2. This
+ is a regression introduced upstream in mutter 45.1 (8f27ebf8), although
+ it only hurts the triple buffering patch so that's where it's fixed:
  
  
https://gitlab.gnome.org/Community/Ubuntu/mutter/-/commit/0b896518b2028d9c4d6ea44806d093fd33793689
  
https://gitlab.gnome.org/Community/Ubuntu/mutter/-/commits/triple-buffering-v4-45
  
  [ Workaround ]
  
  In /etc/environment:
  
    MUTTER_DEBUG_TRIPLE_BUFFERING=always
  
  or "never" also works. Just not "auto".

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