[Bug 1888169] [NEW] Cinnamon segfault at 28 ip 00007fb707b32ae2 sp 00007ffd444e3780 error 6 in libmuffin.so.0.0.0[7fb707afe000+74000]

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Ubuntu Foundations Team Bug Bot (crichton):

This is an upstream issue-read the following bug reports.

https://github.com/linuxmint/cinnamon/issues/9401
https://github.com/linuxmint/cinnamon/issues/9468

I will shortly publish a patch/debdiff to allow for possible SRU.

This is a REGRESSION of a commit in Cinnamon 4.0.0
(https://github.com/linuxmint/muffin/commit/1d38120c9ded2578a14cb2e8bf46bb82b3acdc75)

SRU TEMPLATE:

[Impact]

 * In fallback mode Cinnamon/Muffin segfaults and makes the desktop unusable.
 
 * This would occur by having two monitors-a laptop and an external with the laptop off and the external on-supposedly with NVIDIA as a driver.
[Test Case]
 
 * Upstream commits example to replicate bug:
 "Example to reproduce: Laptop monitor + external monitor.  Arrange laptop
 monitor to the right of the external one.  Using nvidia-450 (confirmed
 for me, at least), turn laptop monitor off.  Ignoring horrible lag from
 driver, turn the laptop monitor back on (arranging it still to the right
 of the external monitor)."

[Regression Potential]

 * This is actually a SOLVE of a regression-I'd task this at medium
priority.

 * This regression fix goes back to Cinnamon 4.0.0-or when Eoan Ermine
was released by getting refresh rates form xrandr

 * In upstream Mint this was an SRU/release as seen here:
https://github.com/linuxmint/muffin/releases/tag/master.mint20 (The
latest is the patch for this bug)

[Other Info]
 
 * I couldn't pbuilder-dist for some reason. Missing dependencies or stuff didn't exist-in sbuild it did though and my debuild -S did.

 * I will work on patching this in Groovy through debian unstable and
will  attach the bug report for groovy as part of this
situation/regression.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: muffin 4.4.3-1
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Jul 19 21:49:09 2020
InstallationDate: Installed on 2020-04-23 (87 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: muffin
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: muffin (Ubuntu)
     Importance: Undecided
     Assignee: Joshua Peisach (itzswirlz)
         Status: Fix Committed


** Tags: amd64 apport-bug focal patch third-party-packages
-- 
Cinnamon segfault at 28 ip 00007fb707b32ae2 sp 00007ffd444e3780 error 6 in libmuffin.so.0.0.0[7fb707afe000+74000]
https://bugs.launchpad.net/bugs/1888169
You received this bug notification because you are a member of Ubuntu Sponsors Team, which is subscribed to the bug report.