[Bug 1603715] Re: bluetooth unavailable after rfkill hard (or soft) unblocking and after suspend/resume

2016-11-25 Thread Eric Ding
I'm experiencing a similar issue on Thinkpad x220 running Linux Mint 18
(based on Ubuntu 16.04) with kernel 4.4.0-21.  In my case, rfkill
unblock needs to be called twice in order to fully enable (and soft
unblock) bluetooth:

# rfkill block bluetooth
# rfkill list bluetooth
0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: yes
Hard blocked: no
# rfkill unblock bluetooth
# rfkill list bluetooth
0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
5: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no

(At this stage, Bluetooth appears to be on in the Mint Bluetooth
configuration dialog but can't see any devices).

# rfkill unblock bluetooth
# rfkill list bluetooth
0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
5: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

(Now Bluetooth works fully as expected).

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[Bug 1508562] Re: Broken symlinks for JSP support in libjetty-extra-java version 6.1.26-1ubuntu1.1

2016-04-08 Thread Eric Ding
After spending a couple hours trying to fix or work around this issue, I
eventually just decided that the only workaround for now is a downgrade.
So I installed jetty and libjetty-extra-java 6.1.26-ubuntu1, but then
bumped into a problem with the most recent version of libtomcat6-java
(https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=740596), so I
manually downloaded and installed the earlier packaged version of
libtomcat6-java (6.0.37-1).  I'm happy to report that Solr now works on
my machine.

Better would be if jetty6 were fixed to only depend on libtomcat6-java
again instead of libtomcat7-java, I suspect, along with a backport of
the fixes that were done to resolve the Debian bug mentioned above; but
for my purposes, I'm content to just stick with earlier packages for
what is a localhost-only setup.

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  Broken symlinks for JSP support in libjetty-extra-java version
  6.1.26-1ubuntu1.1

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2015-09-02 Thread Eric Ding
That fix was from three hours ago, and made it into mainline 3.6, I
believe. I've long since switched computers and haven't tested it
recently, but I would assume it has long since made it into Ubuntu's
releases.

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[Bug 1159205] Re: Hibernate won't resume after image was successfully loaded

2013-05-04 Thread Eric Ding
*** This bug is a duplicate of bug 816859 ***
https://bugs.launchpad.net/bugs/816859

Aha! I figured it out -- I'd worked around this in the previous release
but forgotten about it. It's a bad interaction between uswsusp and
plymouth.  So this is basically a duplicate of #816859, which has an
easy workaround, which makes me wonder why Ubuntu maintainers can't take
the trouble of adding a two-line fix to /usr/share/initramfs-
tools/scripts/local-premount/uswsusp.

In an attempt to upgrade-proof the workaround described in
https://bugs.launchpad.net/ubuntu/+source/uswsusp/+bug/816859/comments/9,
I've copied the script to /etc/initramfs-tools/scripts/local-premount/.

** This bug has been marked a duplicate of bug 816859
   restore after hibernate freezes the computer

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  Hibernate won't resume after image was successfully loaded

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[Bug 1159205] Re: Hibernate won't resume after image was successfully loaded

2013-05-03 Thread Eric Ding
I don't think this is a kernel bug per se -- I just tried reinstalling
the 3.5.0-27 kernel that was working from debs, and now resume from
hibernate is broken with that kernel as well. As a result, I've restored
my backups from quantal, since this functionality is important to me.
Could the might be with initramfs-tools or something else that changed
between quantal and raring?

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  Hibernate won't resume after image was successfully loaded

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[Bug 1159205] Re: Hibernate won't resume after image was successfully loaded

2013-05-02 Thread Eric Ding
I just tested with a variety of mainline kernels from kernel-ppa, and am
confused by what I found. I observed similar freezes while trying to
resume from hibernate using all of the following versions: 3.5.0, 3.5.7,
3.6.11, 3.7.10, 3.9.0. I don't understand why resume from hibernate
works fine with the 3.5.0-27 Ubuntu kernel and not the mainline 3.5.0
kernel, but that's what I've observed, for whatever it may be worth.

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[Bug 1159205] Re: Hibernate won't resume after image was successfully loaded

2013-04-30 Thread Eric Ding
This is happening for me on my Thinkpad R61 after upgrading to Ubuntu
13.04 (kernel 3.8.0-19), but it was working fine with the leftover
kernel from Ubuntu 12.10 (kernel 3.5.0-27).

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[Bug 868358] Re: Hibernate hotkey (fn + ...) triggers suspend to ram

2012-08-19 Thread Eric Ding
Just to keep the record complete, the changes markusj suggested didn't
work on my R61. I'd imagine this is probably the case for others too.
For now, I've worked around it by using CompizConfig Settings Manager to
assign Super-F12 to a command that invokes hibernate, but this seems
like it ought to be a silly regression that should be easy to sort out
at the code level...

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Title:
  Hibernate hotkey (fn + ...) triggers suspend to ram

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[Bug 993265] Re: Wine breaks window decorations for all applications (gtk-window-decorator crashes)

2012-07-11 Thread Eric Ding
OK, here's a stack trace (with breakpoint on _XError)...

** Attachment added: backtrace at _XError for WINE-related 
gtk-window-decorator crash
   
https://bugs.launchpad.net/compiz-core/+bug/993265/+attachment/3219355/+files/backtrace%20at%20_XError%20for%20WINE-related%20gtk-window-decorator%20crash

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  Wine breaks window decorations for all applications (gtk-window-
  decorator crashes)

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[Bug 993265] Re: Wine breaks window decorations for all applications (gtk-window-decorator crashes)

2012-07-10 Thread Eric Ding
I'm seeing the same problem trying to get a backgrace. Even if I respond
'y' to gdb's prompt regarding gdk_x_error, I still get no break, just an
exit with code 01.

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-07-05 Thread Eric Ding
I've already uploaded a patch to the upstream bug tracker, but I just
thought I'd note here that the fix is to turn on USB_QUIRK_RESET_RESUME
for this webcam in drivers/usb/core/quirks.c.  Any chance that such a
fix could be backported into the Ubuntu kernel as well?

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  046d:08c1 Regression: Quickcam Fusion doesn't work after first time

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-07-04 Thread Eric Ding
One more comment (which is already in the upstream log): this webcam
actually appears to work fine even after a suspend/resume cycle in
2.6.38 and earlier, but fails after system suspend/resume or runtime USB
autosuspend/resume in 2.6.39-rc1 and later.  So now I'm not sure where
the issue lies...

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  046d:08c1 Regression: Quickcam Fusion doesn't work after first time

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-07-03 Thread Eric Ding
Well, I found something. After 13 kernel builds (not counting working
around broken commits several times) and countless reboots, I found
myself staring at this as the culprit:

commit e1620d591a75a10b15cf61dbf8243a0b7e6731a2
Author: Rafael J. Wysocki r...@sisk.pl
Date:   Fri Mar 18 19:55:36 2011 +0100

USB: Move runtime PM callbacks to usb_device_pm_ops

USB defines usb_device_type pointing to usb_device_pm_ops that
provides system-wide PM callbacks only and usb_bus_type pointing to
usb_bus_pm_ops that provides runtime PM callbacks only.  However,
the USB runtime PM callbacks may be defined in usb_device_pm_ops
which makes it possible to drop usb_bus_pm_ops and will allow us
to consolidate the handling of subsystems by the PM core code.

Signed-off-by: Rafael J. Wysocki r...@sisk.pl
Acked-by: Greg Kroah-Hartman gre...@suse.de

I actually went back and started testing several of the earlier steps in
the bisection because I couldn't believe this was the issue, since the
commit looked completely irrelevant. Maybe I'd not tested thoroughly
enough and falsely labeled as good one of the bad commits. But then
I looked more closely at the patch associated with this commit, and
decided to play around with some settings.

With USB power management turned on in the current kernel (default in
3.2.0-25), all I have to do is run guvcview once after plugging in the
webcam, close guvcview, wait at least two seconds (which is the default
autosuspend idle-delay time), then open guvcview again. Voila! Bug
reproduced.

However, if I turn off USB power management), then this issue is no
longer reproducible. I do this by running echo -1 
/sys/module/usbcore/parameters/autosuspend as root.  I have not yet
found a way to turn off autosuspend for just the webcam, but this
appears to be a (somewhat sledgehammer-ish) workaround.

So... now what? Have I found a kernel bug, or just a bug in the webcam
firmware tickled by a legitimate change in the kernel code?  If the
latter, then is there a way to indicate that this particular webcam is
not compatible with USB autosuspend as implemented now?

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  046d:08c1 Regression: Quickcam Fusion doesn't work after first time

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-07-03 Thread Eric Ding
I just found a way to turn off autosuspend for just the webcam (by
writing to the appropriate power/control attribute under
/sys/bus/usb/devices/*) but this seems like a kludge -- and having to do
it after each time I plug in the webcam is not too elegant either.

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-07-03 Thread Eric Ding
One more note: the same issue occurs, even with runtime USB power
management turned off, if I suspend my system with the webcam connect
and then resume.  So it appears to be a problem not with runtime power
management per se, but with the way this particular webcam reacts to a
suspend/resume cycle.

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-07-03 Thread Eric Ding
** Bug watch added: Linux Kernel Bug Tracker #44191
   http://bugzilla.kernel.org/show_bug.cgi?id=44191

** Changed in: linux
   Importance: Undecided = Unknown

** Changed in: linux
   Status: New = Unknown

** Changed in: linux
 Remote watch: None = Linux Kernel Bug Tracker #44191

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-06-28 Thread Eric Ding
Christopher, I already downloaded v2.6.39-rc1 (mainline kernel build
from ubuntu ppa) and confirmed that the bug happens there.  So I am left
to conclude that the bug was introduced between v2.6.38 (in which the
bug doesn't happen) and v2.6.39-rc1; so what would you now suggest?  I'm
preparing to do a bisection between those two mainline kernel versions;
do you think that's the right step?

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-06-28 Thread Eric Ding
Hi Christopher, where oh where have you gone?  :-)

Since I couldn't build from Ubuntu-2.6.39-0.0 (which appears to actually
be 2.6.38 in some form), I did some more reading and started to make use
of git bisect skip.  Three git bisect skips and three git bisect
goods later, git bisect just tells me that the earliest known bad
commit was... Ubuntu-2.6.39-0.0.  Not terribly helpful!  So now what?
There are several v4l-related commits, including a major merge from
v4l_for_linus, but I don't know git well enough to know whether it's
possible to revert those specific commits for testing.

Any further suggestions?

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-06-26 Thread Eric Ding
I've now tried it on 2.6.39-0.5; for some reason, it takes many more
tries before it happens, but I can still coax this bug to show up in
this version. I haven't been able to reproduce it, however, in 2.6.38-8
(from Oneiric) or in 2.6.38-15 (from Natty).

So how do I proceed with bisection here?  If I list all the tags in the
Oneiric repository, the earliest one seems to be Ubuntu 2.6.39-0.0, not
2.6.38-8.42.  So how would I track down the possible causes of
regression between 2.6.38-8.42 and 2.6.39-0.5?

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-06-26 Thread Eric Ding
OK, a brief update from the land of trying to build a kernel in Ubuntu
regression land for the first time: I built a kernel from the tag
Ubuntu-2.6.39-0.1, and confirmed that the regression still happens
there.

When I tried building from Ubuntu-2.6.39-0.0 (a logical step, no?), the
build (actually, the pre-build command fakeroot debian/rules clean)
failed immediately with this error:

debian/rules.d/0-common-vars.mk:12: *** first argument to `word'
function must be greater than 0.  Stop.

So... now what? It seems that I've found an inconvenient place in the
development cycle for trying to determine the cause of a regression...

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-06-25 Thread Eric Ding
I'll try to do so sometime soon -- but I think it needs to be a kernel
bisect from Natty, based on comment #5 in bug 865131. There's an awfully
wide gap between 2.6.38 and 3.2.0; which kernel/git branch do I pull
down to start the process: the one from Natty or the one from Precise?

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-06-25 Thread Eric Ding
Hi Christopher, thanks for your help so far.  I've determined that the
webcam worked with the Natty kernel but fails with the latest Oneiric
kernel.  So I'm ready to start the bisection process, but I'm a little
unclear: the document on kernel bisection seems to assume that the
working and non-working kernel are in the same tree in the example given
(e.g., ubuntu-maverick.git). But in this instance, I'm finding a problem
moving from the Natty kernel to the Oneiric kernel.  So which git tree
do I clone?

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[Bug 1017072] [NEW] Regression: Quickcam Fusion doesn't work after first time

2012-06-24 Thread Eric Ding
Public bug reported:

The first time I plug in this webcam, it seems to work ok (e.g., in
guvcview). If I turn off the webcam and then turn it on again, all I see
is a noisy screen with lots of multicolored horizontal lines (see
attached; colors change in response to waving my hand in front of webcam
lens, so I know it's still receiving/processing video from camera).
Sometimes, it works the second time, but after a few more times, I see
the video with just noise again. If I unplug the webcam and then plug it
back in, then the video shows up again -- at least for one time.

I see this problem after upgrading from Maverick straight to Precise.
This is reminiscent of bug 865131, which expired on 2012-05-30. I've
tested with mainline kernel 3.4 as well, with similar results.

046d:08c1 Logitech, Inc. QuickCam Fusion

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-25-generic-pae 3.2.0-25.40
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
Uname: Linux 3.2.0-25-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
AudioDevicesInUse:
 USERPID ACCESS COMMAND
 /dev/snd/controlC1:  ericding   3287 F pulseaudio
 /dev/snd/controlC0:  ericding   3287 F pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfe02 irq 48'
   Mixer name   : 'Analog Devices AD1984'
   Components   : 'HDA:11d41984,17aa20d7,00100400'
   Controls  : 32
   Simple ctrls  : 20
Card1.Amixer.info:
 Card hw:1 'U0x46d0x8c1'/'USB Device 0x46d:0x8c1 at usb-:00:1d.7-1, high 
speed'
   Mixer name   : 'USB Mixer'
   Components   : 'USB046d:08c1'
   Controls  : 2
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 3072
   Mono: Capture 1536 [50%] [24.00dB] [on]
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 
7KHT24WW-1.08'
   Mixer name   : 'ThinkPad EC 7KHT24WW-1.08'
   Components   : ''
   Controls  : 1
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Sun Jun 24 15:37:19 2012
HibernationDevice: RESUME=UUID=659e091f-4341-4c37-85eb-04642310de7a
InstallationMedia: Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)
MachineType: LENOVO 7732CTO
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-25-generic-pae 
root=/dev/mapper/vg-root ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-25-generic-pae N/A
 linux-backports-modules-3.2.0-25-generic-pae  N/A
 linux-firmware1.79
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/11/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7LETC6WW (2.26 )
dmi.board.name: 7732CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: 
dmi:bvnLENOVO:bvr7LETC6WW(2.26):bd05/11/2009:svnLENOVO:pn7732CTO:pvrThinkPadR61/R61i:rvnLENOVO:rn7732CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7732CTO
dmi.product.version: ThinkPad R61/R61i
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
 Importance: Undecided
 Status: Confirmed


** Tags: apport-bug i386 precise

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Title:
  Regression: Quickcam Fusion doesn't work after first time

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[Bug 1017072] Re: Regression: Quickcam Fusion doesn't work after first time

2012-06-24 Thread Eric Ding
** Attachment added: video captured in guvcview when webcam not working 
properly
   
https://bugs.launchpad.net/bugs/1017072/+attachment/3202254/+files/SecondTime.avi

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Title:
  Regression: Quickcam Fusion doesn't work after first time

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[Bug 1017072] Re: 046d:08c1 Regression: Quickcam Fusion doesn't work after first time

2012-06-24 Thread Eric Ding
I just tested with 3.5.0-030500rc3-generic #201206162135
3.5.0-030500rc3-generic #201206162135 SMP and can still reproduce the
issue.

** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream

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Title:
  046d:08c1 Regression: Quickcam Fusion doesn't work after first time

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[Bug 865131] Re: Regression: Logitech Quickcam Fusion doesn't work since upgrade

2012-06-09 Thread Eric Ding
I see this problem after upgrading from Maverick straight to Precise.
The webcam works when first plugged in, but after turning off the webcam
and back on, I get all sorts of problems.  Even when it works the first
time, the image is significantly underexposed (way too dark). Can this
bug be revisited?

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Title:
  Regression: Logitech Quickcam Fusion doesn't work since upgrade

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[Bug 996604] Re: When number of workspaces is set to 1, the Spread no longer works

2012-05-18 Thread Eric Ding
@Sebastien: Ben may have been a little crass about it, but the fact is
that this is a regression since 12.04 was released.  It worked in 12.04
out of the box, but then stopped working with the Unity 5.12 upgrade.

Surely you can't be serious in saying that we can only expect Ubuntu to
work if we stick with strictly standard options!  Does that mean that
if I include more launchers than are there by default, or if I decide to
change the panel to display the day and month, not just the time, then I
can't expect it to work because it's not a standard option?  That's just
silly.  I expect minor bugs and issues to arise, so I'm not about to go
on a rant about this issue, but your regression test suite really should
include not just one standard configuration, but other common
configurations and boundary cases too. Don't you think?

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Title:
  When number of workspaces is set to 1, the Spread no longer works

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