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Bug 758112 - system freezes hard after logout
system freezes hard after logout
Status: RESOLVED DUPLICATE of bug 756926
Product: gnome-shell
Classification: Core
Component: general
3.18.x
Other Linux
: Normal critical
: ---
Assigned To: gnome-shell-maint
gnome-shell-maint
Depends on:
Blocks:
 
 
Reported: 2015-11-14 17:59 UTC by Michael Biebl
Modified: 2016-01-11 15:36 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Michael Biebl 2015-11-14 17:59:50 UTC 
Version: 3.18.2

After upgrading gnome-shell from 3.18.1 to 3.18.2, the system freezes whenever I log out from a GNOME session. The screen turns black, but I can't move the mouse anymore or switch to the console.
The only way to get back to a working system is a hard power reset.

Running git bisect identifies 5583f881df39ee17bf136002e1fab7bb48e69997 as the faulty commit: "gdm: don't emit start-session-when-ready from idle function"

Reverting that commit makes gnome-shell work again properly and I can log out properly again.
Comment 1 Michael Biebl 2015-11-14 18:02:34 UTC 
gdm is at version 3.18.0, i.e. the latest available stable release.
Comment 2 Leonardo Canducci 2015-12-11 09:15:24 UTC 
I can confirm that behaviour. Multi-user experience is completely broken for me.
Comment 3 Leonardo Canducci 2016-01-09 09:13:06 UTC 
Simple workorund (via Marco d'Itri): https://bugzilla.opensuse.org/show_bug.cgi?id=958885
Comment 4 Michael Biebl 2016-01-09 23:21:15 UTC 
I confirm that the cogl patch
https://git.gnome.org/browse/cogl/commit/?h=cogl-1.22&id=a583492ea2aa3ea8e78c269bd5db3f52f82aa79c

fixes the issue for me.
Comment 5 Ray Strode [halfline] 2016-01-11 15:36:33 UTC 
oh okay great

*** This bug has been marked as a duplicate of bug 756926 ***