[mythtv] [mythtv-commits] Ticket #6933: mythfrontend crashes on startup with opengl painter

[David Asher]

On Aug 29, 2009, at 1:45 AM, MythTV wrote:

> #6933: mythfrontend crashes on startup with opengl painter
> ----------------------------------------- 
> +----------------------------------
> Reporter:  Stephen <stev391 at email.com>  |       Owner:  ijr
>     Type:  defect                       |      Status:  new
> Priority:  minor                        |   Milestone:  unknown
> Component:  MythTV - General             |     Version:  head
> Severity:  medium                       |     Mlocked:  0
> ----------------------------------------- 
> +----------------------------------
> I'm running trunk (r21581) and have been using the Qt painter.  I  
> switched
> to the opengl painter and now I'm seeing segfaults, for about 50% of  
> the
> time, during startup of mythfrontend.
>
> I have attached a backtrace and the output of configure used to  
> generate
> the backtrace.
>
> I have now switched back to the Qt painter, but can switch again if  
> more
> information/testing is required.

I was having the same issue.  The core dump is in a "glBegin(GL_QUAD)"  
statement.  After poking around for a while it looked like someone had  
triaged a similar issue and thought it looked like a driver issue.

I was running nvidia 180.* series driver, upgrading to the LATEST  
185.* series (185.18.36) driver (the earlier 185.* drivers had some  
severe issues) fixed it for me.  I was also having so (rare) coredumps  
during VDPAU playback with the latest 180.* driver which looked  
suspiciously like memory corruption, since going to 185.18.36 I had no  
problems.

Give it a try.