Hard system crash when changing waveform display type during playback

Bug #1211028 reported by Kev on 2013-08-11
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mixxx
Critical
Unassigned

Bug Description

I just installed Mixxx version 1.11.0 (build r3862) on my machine, a Lenovo e420 running CrunchBang Waldorf Stable. Mapped an external MIDI controller and had a track playing on Deck 1. During playback I was examining interface and other options in Options / Preferences / Interface.

"Display type" was set as "Filtered (GL)," the default setting. I clicked one of the Qt settings while the track was playing and my system froze immediately and was unresponsive (no mouse movement either). Track began stuttering at current playback position. I had to do a hard reboot to recover.

I tried to replicate the behavior after rebooting, but Mixxx didn't crash again. The display type updated as I chose it during playback. So, I don't know whether this was a one-off or might indicate some low-level bug that will occur occasionally. So far as I know, I wasn't running any other background processes the first time that wouldn't have been running the second time. Maybe some background OS process was involved the first time?

Anyways, realize it's a low-priority issue, but thought I'd let you know. Cheers
Kevin

Daniel Schürmann (daschuer) wrote :

We have some other bug reports like that. But currently no idea for a fix.
This might be a graphic driver issue. Please report your graphic hardware and your installed driver as well.
Thank you.

Kev (kevinrse) wrote :

OK, see below. If you'd like more info, please let me know. Thanks again!

kevin@crunchbang:~$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

kevin@crunchbang:~$ sudo find /dev -group video
[sudo] password for kevin:
/dev/video0
/dev/fb0
/dev/dri/card0
/dev/dri/controlD64
/dev/agpgart

kevin@crunchbang:~$ glxinfo | grep -i vendor
server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
OpenGL vendor string: Tungsten Graphics, Inc

Daniel Schürmann (daschuer) wrote :

Thank you, Kevin. If this crash ever happens again, please save the Mixxx log file from ~/.mixxx/mixxx.log before you restart Mixxx and attach here.

RJ Ryan (rryan) on 2014-03-29
Changed in mixxx:
importance: Undecided → Critical
tags: added: waveform
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