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Bug 754640 - UI freezes when clutter initializes
UI freezes when clutter initializes
Product: clutter
Classification: Platform
Component: x11
Other Linux
: Normal major
: ---
Assigned To: clutter-maint
Depends on:
Reported: 2015-09-06 15:27 UTC by Sean Davis
Modified: 2021-06-10 11:33 UTC
See Also:
GNOME target: ---
GNOME version: ---

sample application (430 bytes, text/x-python)
2015-09-06 15:27 UTC, Sean Davis
backtrace (5.16 KB, text/plain)
2015-09-06 15:30 UTC, Sean Davis

Description Sean Davis 2015-09-06 15:27:08 UTC
Created attachment 310754 [details]
sample application

Gtk applications freeze when initializing clutter, and the window contents are not displayed. 

The behavior is similar to and can be worked around by launching the application with CLUTTER_BACKEND=x11

Attaching sample python application which recreates the issue.
Comment 1 Sean Davis 2015-09-06 15:30:01 UTC
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: 1920x1080@60.10hz
           GLX Renderer: Mesa DRI Intel Haswell Mobile GLX Version: 3.0 Mesa 10.6.3

Attaching backtrace.
Comment 2 Sean Davis 2015-09-06 15:37:42 UTC
Version info:
GTK 3.16.6
Clutter 1.22.4

Please let me know if you need any additional details.
Comment 3 André Klapper 2021-06-10 11:33:56 UTC
GNOME is going to shut down in favor of
As part of that, we are mass-closing older open tickets in
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.