This bug was fixed in the package gdm3 - 3.36.3-0ubuntu0.20.04.3
---------------
gdm3 (3.36.3-0ubuntu0.20.04.3) focal; urgency=medium
* debian/patches/git_display_segfault.patch:
- Backport crash fix when using Xvfb in some situations
(lp: #1861769)
-- Sebastien Bacher <[email protected]> Tue, 10 Nov 2020 13:27:10
+0100
** Changed in: gdm3 (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1861769
Title:
gdm3 crashed with SIGSEGV in g_type_check_instance_cast() from
gdm_manager_handle_register_session() from ffi_call_unix64() from
ffi_call() from g_cclosure_marshal_generic()
Status in gdm:
Fix Released
Status in gdm3 package in Ubuntu:
Fix Released
Status in gdm3 source package in Focal:
Fix Released
Bug description:
* Impact
The desktop session can close in some cases when using xvfb
* Test case
$ Xvfb -ac :100 2> Xvfb.log &
$ export DISPLAY=:100
$ gnome-session --session=ubuntu
* Regression potential
The change is a simple variable init in the display code, check that the
greeter stills load correctly in normal and remote cases
--------------------------------------------------------------------
The Ubuntu Error Tracker has been receiving reports about a problem regarding
gdm3. This problem was most recently seen with package version
3.34.1-1ubuntu1, the problem page at
https://errors.ubuntu.com/problem/75937873ed2a64ec63a908fe2b52c193e7371d78
contains more details, including versions of packages affected, stacktrace or
traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software
developer, you can request it at http://forms.canonical.com/reports/.
To manage notifications about this bug go to:
https://bugs.launchpad.net/gdm/+bug/1861769/+subscriptions
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