gnome-shell crashed with SIGABRT. Assertion failure in meta_gpu_kms_flip_crtc: "monitor_manager->power_save_mode == META_POWER_SAVE_ON"

[Anders Kaseorg]

https://gitlab.gnome.org/GNOME/mutter/issues/509
https://errors.ubuntu.com/problem/52cd7eaa22c6b950716ba83212632fd706353971

---

In the last few weeks, gnome-shell has been crashing almost every time I open my laptop to wake it from suspend. The rapid pace of package updates has stopped Apport from letting me report it until now, but the problem persists.

ProblemType: Crash
DistroRelease: Ubuntu 19.04
Package: gnome-shell 3.32.0-1ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-7.8-lowlatency 5.0.0
Uname: Linux 5.0.0-7-lowlatency x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.20.10-0ubuntu23
Architecture: amd64
CurrentDesktop: GNOME
Date: Fri Mar 15 11:22:20 2019
DisplayManager: gdm3
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2016-02-19 (1120 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160218)
ProcCmdline: /usr/bin/gnome-shell
Signal: 6
SourcePackage: gnome-shell
StacktraceTop:
 () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
 () at /usr/lib/x86_64-linux-gnu/libmutter-4.so.0
 () at /usr/lib/x86_64-linux-gnu/libmutter-4.so.0
 g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: gnome-shell crashed with SIGABRT
UpgradeStatus: Upgraded to disco on 2018-12-15 (90 days ago)
UserGroups: adm audio bumblebee cdrom dip docker libvirt libvirtd lpadmin lxd mock plugdev sambashare sbuild sudo wireshark
separator:

[Apport retracing service (apport)]

StacktraceTop:
 g_assertion_message (domain=<optimized out>, file=<optimized out>, line=<optimized out>, func=0x7f7075698490 <__FUNCTION__.106414> "meta_gpu_kms_flip_crtc", message=<optimized out>) at ../../../glib/gtestutils.c:2878
 g_assertion_message_expr (domain=domain@entry=0x7f707568285f "mutter", file=file@entry=0x7f7075698358 "../src/backends/native/meta-gpu-kms.c", line=line@entry=276, func=func@entry=0x7f7075698490 <__FUNCTION__.106414> "meta_gpu_kms_flip_crtc", expr=expr@entry=0x7f70756983a0 "monitor_manager->power_save_mode == META_POWER_SAVE_ON") at ../../../glib/gtestutils.c:2904
 meta_gpu_kms_flip_crtc (gpu_kms=gpu_kms@entry=0x5564d6c7ade0, crtc=crtc@entry=0x5564d6edceb0, fb_id=117, flip_closure=0x5564d7ecfa40, error=error@entry=0x7ffc6c54b680) at ../src/backends/native/meta-gpu-kms.c:276
 retry_page_flips (user_data=0x5564d9e25db0) at ../src/backends/native/meta-renderer-native.c:1576
 g_main_dispatch (context=0x5564d6c69e80) at ../../../glib/gmain.c:3189

[Launchpad Janitor (janitor)]

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

[El jinete sin cabeza (ejsc)]

Of:
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1070

To:
https://gitlab.gnome.org/GNOME/mutter/issues/506

[Daniel van Vugt (vanvugt)]

Tracking in:

https://errors.ubuntu.com/problem/52cd7eaa22c6b950716ba83212632fd706353971

[Anders Kaseorg (andersk)]

I hope 3.32.1 will get into Disco, but in case this can’t happen and a more minimal set of patches is required, these are the nine upstream patches I added to my mutter package to get it to stop crashing on wakeup:

fe86694dd renderer/native: Make EGLStream page flip errors non-fatal
1eabaf12d renderer/native: Make the EGLStreams operate in mailbox mode
4cae9b5b1 monitor-manager: Clean up DPMS state tracking
40e7e5d35 renderer-native: Fix page flip retry timeout calculation
53b59d8bf renderer-native: Fake page flipped if power saving when retrying
3cc3b7526 renderer-native: Fake page flipping slower when power saving
88e4ff740 backend: Add API to freeze/thaw frame clock
808a75b23 renderer-native: Add helper to get backend from renderer
b2d0184c6 renderer-native: Freeze frames while retrying to page flip

Note that they were accepted into master nonconsecutively, with other commits between 1eabaf12d and 4cae9b5b1.

[Daniel van Vugt (vanvugt)]

Fix committed via Debian:

mutter (3.32.0+git20190410-1) experimental; urgency=medium

[Launchpad Janitor (janitor)]

This bug was fixed in the package mutter - 3.32.0+git20190410-1ubuntu1

---------------
mutter (3.32.0+git20190410-1ubuntu1) disco; urgency=medium

  * Merge with debian git snapshot (LP: #1820542), remaining changes:
    + debian/control:
      - Update VCS flags to point to launchpad
      - Update maintainer to ubuntu
    + debian/gbp.conf: update branch to point to ubuntu/master
    + debian/patches/x11-Add-support-for-fractional-scaling-using-Randr.patch:
      - X11: Add support for fractional scaling using Randr
  * d/p/x11-Add-support-for-fractional-scaling-using-Randr.patch:
    - Refreshed.

 -- Marco Trevisan (Treviño) <email address hidden> Wed, 10 Apr 2019 20:12:29 -0500