[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Daniel van Vugt]

WHK,

This bug is closed. Please open a new bug for 20.04 by running:

  ubuntu-bug gnome-shell

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  gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[WHK]

Same problem on Ubuntu 20.04. SegvReason: reading NULL VMA. Only open
nautilus and try mount a external luks disk.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[wdoekes]

For the record, now that I've moved from Artful 17.10 to Bionic 18.04,
this bug is not affecting me anymore, but now bug #1724439 is.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Launchpad Bug Tracker]

This bug was fixed in the package gnome-shell - 3.27.91-0ubuntu1

---
gnome-shell (3.27.91-0ubuntu1) bionic; urgency=medium

  [ Didier Roche ]
  * New upstream version (LP: #1751070, LP: #1722725,
LP: #1714989, LP: #1724557, LP: #1723857, LP: #1744970):
- debian/patches/70_allow_sound_above_100.patch,
  debian/patches/ubuntu-lightdm-user-switching.patch patches
  refreshed for new release. Removed ': function()' syntax as
  upstreamed removed them in those context.
- debian/patches/ubuntu_panel_center_date_workarea.patch removed as
  upstreamed now.
- debian/control.in, debian/rules:
  bump deps, add sassc and libnm-dev which is now required.
  drop caribou dep, as the OSK is now built-in.
- debian/rules:
  use now with renamed build options.
  * debian/ubuntu-session-mods/ubuntu.css, debian/rules:
- adapt to new GNOME Shell theme including OSK.
- color shift keys in orange in OSK and use differente svg.
  * debian/rules:
- some duplication removal.
  * debian/patches/27-nm-libexec-path.patch,
debian/patches/71_smarter_alt_tab.patch,
debian/patches/fix-wayland-vbox-crash.patch,
debian/patches/optional-hot-corner.patch,
debian/patches/ubuntu_block_mode_extension_update.patch,
debian/patches/ubuntu_gdm.patch,
debian/patches/ubuntu_lock_on_suspend.patch:
- unfuzzed
  * Cherry-pick git_ea0770ae22a6c34797db4343cf7d2f59bb8d68f6.patch:
- upstream mutter API bump.
  * debian/gnome-shell-common.install, debian/rules:
- the .css files aren't shipped anymore, so copy from the built version.

  [ Jeremy Bicha ]
  * Update NetworkManager dependencies

 -- Didier Roche   Fri, 02 Mar 2018 10:04:06 +0100

** Changed in: gnome-shell (Ubuntu)
   Status: Fix Committed => Fix Released

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Dave Chiluk]

** Tags added: indeed

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Daniel van Vugt]

** Tags added: fixed-in-3.26.3

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[wdoekes]

@3v1n0: I suspect that this changeset -- which should be in 3.26.3 -- does the 
same:
https://gitlab.gnome.org/GNOME/mutter/commit/71b4ef5940d16f7d3cb7dca5c224784315803492

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Treviño]

@wdoekes

Can you also attach [6] to that bug, or better, propose a merge proposal
on mutter gitlab for that?

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Daniel van Vugt]

Brian, firstly please check for updates because current versions of
Ubuntu are on 3.26.2 already:
https://launchpad.net/ubuntu/+source/mutter

Secondly, yes we want to get 3.26.3 into Ubuntu ASAP. The problem is that 
3.26.3 doesn't exist yet. You can see fixes accumulating in readiness for it 
though, here:
https://git.gnome.org/browse/mutter/log/?h=gnome-3-26

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Brian Neltner]

It's been a month, is there a way to get the fixed release of mutter in
Ubuntu 17.10? I'm fine with installing an experimental package for it or
use a PPA. My mutter version is still 3.26.1.

Is this going to stay frozen until 18.04 is released? I'd really like to
not spend the next three months having to leave my monitor on overnight
to avoid crashes.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[ryzko]

Ok.Thank you for information.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Treviño]

No, the fix isn't in Ubuntu yet.

It has been commited in the upstream repository, but it won't hit ubuntu
until mutter 3.26.3 will be relased and released in Ubuntu.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[ryzko]

Status is Fix Committed, i don't know if fix is already available in Ubuntu. 
But crash still persist. 
gnome-shell:3.26.2-0ubuntu0.1
mutter:3.26.2-0ubuntu0.1
xwayland:2:1.19.5-0ubuntu2
Nowadays not only gnome-shell crash file is created on crash event but also 
xwayland. Something changed and I don't know if new report should be opened.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Jimmy Utterström]

For me it seems to have been resolved in gnome shell 3.26.2. :)

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Brian Neltner]

I still have the exact same symptoms after the fix was released, but no
longer see crash logs. Any way to tell what is causing the crash? I
assume it's related but don't know how to track it down.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Treviño]

** Changed in: gnome-shell (Ubuntu)
   Status: Fix Released => Fix Committed

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Cláudia Cardoso]

** Changed in: gnome-shell (Ubuntu)
   Status: Confirmed => Fix Released

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Brian Neltner]

I have still been experiencing crashes of the desktop whenever my
monitor is turned back on. However, the /var/crash log is now reporting
against Xwayland.

I submitted a new bug report https://bugs.launchpad.net/ubuntu/+source
/xorg-server/+bug/1733893 against this crash log as I am not sure if it
is the same cause. For me the last crash log for gnome-shell is from the
19th, but the crash behavior has remained (mostly) unchanged.

I say mostly because once in a while I am able to turn the monitor on
without it crashing. I have no explanation for that, and haven't been
able to pin down what set of conditions cause it to work.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Echo Nolan]

I built a version of libmutter with the patch in the linked GNOME bug
applied, but then I get a different crash when turning off the monitor.
That one is 1724439, in meta_window_get_monitor(). Switching my session
from Wayland to Xorg fixes the problem. It might fix the original crash
too, I didn't test that.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Treviño]

Once we will sync with the upcoming gnome 3.26.3.

Or if there's much request we can backport it earlier (Jeremy?)

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Echo Nolan]

The GNOME people have merged a patch for this. When will a new Ubuntu
package be released? Do they need to cut a release of Mutter? I'm not
clear on the process.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Brian Neltner]

This bug may still be impacting me, but since I'm not 100% sure if the
cause is the same I am not sure. It seems to have gotten better in some
but not all situations. I did reboot to apply the released fix so this
is the most recent versions hopefully.

Perhaps useful to note that it doesn't crash until the monitor turns
back on. I was able to test this because I play brown noise in a
terminal with the monitor off but not locked overnight. In the morning
sound is still playing, and I was able to Ctl-C without turning on the
monitor to turn off the sound so it was still a responsive and logged in
system until then. But then it crashed when I turned the monitor back
on.

I've uploaded the crash logs for the different methods of failure a few
times using ubuntu-bug. I'm not certain that the logs are showing up,
nor sure how to check. When I run ubuntu-bug on the crash file it opens
the dialog for reporting a bug, I click continue but then the dialog
immediately exits with no further user interaction. Is this correct
behavior? I seem to remember years ago that the dialog would open up a
web browser to this site but it hasn't done that in ages for me. I'm
assuming it's working transparently now but please let me know if they
aren't showing up as reported bugs.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Bug Watch Updater]

** Changed in: mutter
   Status: Confirmed => Fix Released

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Daniel van Vugt]

** Attachment removed: "_usr_bin_gnome-shell.1000.crash"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1724557/+attachment/4981563/+files/_usr_bin_gnome-shell.1000.crash

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[ryzko]

Hi Brian. well, good question if it is one or more bugs with similar symptoms. 
But Gnome shell session is crashing in my case on following events: Monitor 
switch off, after monitor input/source change, after KVM switch ("keyboard, 
video and mouse") input change and after session lock (automatic after timeout, 
manual by Super+L keys, manual from menu).
Some times it just kick me out from session. Sometimes it is full GUI crash.
I'm using PC with single monitor connected directly or through KVM switch.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Daniel van Vugt]

Brian, please use the 'ubuntu-bug' command to upload crash files. Each
crash file should get its own bug.

** Attachment removed: "_usr_bin_gnome-shell.1000.crash"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1724557/+attachment/5004930/+files/_usr_bin_gnome-shell.1000.crash

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Brian Neltner]

I am not certain if my crash is the same as this bug, but this seems
most likely the same issue that I see when I attempt to lock my session.
Upon locking the session it immediately crashes gnome-shell. I am using
an Intel NUC.

My dmesg reports:

gnome-shell[17362]: segfault at 38 ip 7fe14c425c30 sp
7ffc4f950868 error 4 in libmutter-1.so.0.0.0[7fe14c3d3000+141000]

I have attached the /var/crash file for more information, please let me
know if I should look elsewhere for this bug as I am not 100% certain it
is the same cause. It is currently using gnome-shell 3.26.1-0ubuntu4.

** Attachment added: "_usr_bin_gnome-shell.1000.crash"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1724557/+attachment/5004930/+files/_usr_bin_gnome-shell.1000.crash

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[pullasuti]

Versions updated to gnome-shell 3.26.1-0ubuntu5 and libmutter
3.26.1-2ubuntu2, no change

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Jimmy Utterström]

I am by the way using the same versions of libmutter and gnome-shell as
pullasuti.

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Jimmy Utterström]

I'm experiencing the same issue every time I switch the screen off/on or
when the screen has timed out and gone blank and I try to wake it up
again. Gnome-shell crashes  Attaching my crash file. The only solution
to make my 17.10 experience manageable so far is to never turn off the
screen or let it go blank.


** Attachment added: "_usr_bin_gnome-shell.1000.crash"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1724557/+attachment/4981563/+files/_usr_bin_gnome-shell.1000.crash

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Title:
  gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[pullasuti]

On the Skull Canyon NUC I'm currently at the versions are: libmutter
3.26.1-2ubuntu1 and gnome-shell 3.26.1-0ubuntu4.

I have a  _usr_bin_gnome-shell.1001.crash, but it's quite large even
after compressing it. I'll see if launchpad will accept the file.

** Attachment added: "Freshly generated gnome-shell crash file after switching 
screen off and on"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1724557/+attachment/4981367/+files/_usr_bin_gnome-shell.1001.zip

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Title:
  gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Bug Watch Updater]

** Changed in: mutter
   Status: Unknown => Confirmed

** Changed in: mutter
   Importance: Unknown => Medium

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  gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Treviño]

pullasuti, do you have a *.crash file in /var/crash/ related to gnome-
shell?

Please attach them mentioning here the versions of gnome-shell and
libmutter you're using in your systems (mostly for recording them for
later times).

** Changed in: gnome-shell (Ubuntu)
 Assignee: (unassigned) => Marco Trevisan (Treviño) (3v1n0)

** Bug watch added: GNOME Bug Tracker #788764
   https://bugzilla.gnome.org/show_bug.cgi?id=788764

** Also affects: mutter via
   https://bugzilla.gnome.org/show_bug.cgi?id=788764
   Importance: Unknown
   Status: Unknown

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  gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[ryzko]

Hi, just adding part of syslog. Time stamps: 9:50 - monitor switch off,
10:22 - switch on.

** Attachment added: "crash_syslog"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1724557/+attachment/4978078/+files/crash_syslog

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  gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[pullasuti]

I believe I'm plagued by the same bug (also followed bug 1717170, and
posted on bugzilla). However, now I don't get a full crash, but a
session kick-out. This issue happens on two separate Intel NUC setups,
both connected to a 4K TV with a displayport->hdmi2.0 -adapter (the
other one from Club3D, the other a built in adapter in Intel Skull
Canyon NUC.

But all in all, this is now forcing me to suspend my computers before
switching off the displays, otherwise my entire desktop is lost. I can't
understand how this is not more common, however.

An extremely annoying issue.

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  gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: gnome-shell (Ubuntu)
   Status: New => Confirmed

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  gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

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[Bug 1724557] Re: gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

[Daniel van Vugt]

** Information type changed from Private to Public

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  gnome-shell crashed with SIGSEGV in meta_logical_monitor_get_scale()

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