GNOME Bugzilla – Bug 754640
UI freezes when clutter initializes
Last modified: 2021-06-10 11:33:56 UTC
Created attachment 310754 [details]
Gtk applications freeze when initializing clutter, and the window contents are not displayed.
The behavior is similar to https://bugzilla.gnome.org/show_bug.cgi?id=743085 and can be worked around by launching the application with CLUTTER_BACKEND=x11
Attaching sample python application which recreates the issue.
Created attachment 310755 [details]
This is using the intel drivers. Below output from inxi:
$ inxi -G
Graphics: Card-1: Intel Haswell-ULT Integrated Graphics Controller
Card-2: NVIDIA GK107M [GeForce GT 745M]
Display Server: X.Org 1.17.2 drivers: intel (unloaded: fbdev,vesa) Resolution: firstname.lastname@example.org
GLX Renderer: Mesa DRI Intel Haswell Mobile GLX Version: 3.0 Mesa 10.6.3
Please let me know if you need any additional details.
GNOME is going to shut down bugzilla.gnome.org in favor of gitlab.gnome.org.
As part of that, we are mass-closing older open tickets in bugzilla.gnome.org
which have not seen updates for a longer time (resources are unfortunately
quite limited so not every ticket can get handled).
If you can still reproduce the situation described in this ticket in a recent
and supported software version of clutter, then please follow
and create a ticket at
Thank you for your understanding and your help.