[mythtv-commits] Ticket #5999: green playback on intel Q45 gpu for ATSC recordings and liveTV

MythTV mythtv at cvs.mythtv.org
Wed Dec 10 06:12:10 UTC 2008

#5999: green playback on intel Q45 gpu for ATSC recordings and liveTV
 Reporter:  anonymous  |       Owner:  ijr    
     Type:  defect     |      Status:  new    
 Priority:  minor      |   Milestone:  unknown
Component:  mythtv     |     Version:  unknown
 Severity:  medium     |     Mlocked:  0      
 With mythtv-0.21-14.fc10.x86_64 from rpmfusion, video playback has a green
 coloration like an incorrect colorspace conversion. This happens with xv-
 blit or gl rendering. This is on a pretty recent Q45 Express chipset on an
 Intel DQ45CB boxed motherboard, using DVI/HDMI output. I am using the
 latest stable kernel- and xorg-x11-drv-i810-2.5.0-4 packages
 from Fedora 10. On this chipset, the intel driver is reporting XvMC fails
 to initialize, so only the textured video blitter is available.

 Oddly, with LiveTV it seems like blindly changing channels between several
 channels of different resolutions can make it start working, even when
 switching back to the channel that previously did not work. Exiting LiveTV
 and restarting returns to a green video. Playing recorded shows never has
 correct colors.

 Using mplayer -vo xv to play the same recorded 1080i MPEG streams works
 fine. Is there a way to force different colorspace conversions, rather
 than trying to use the xv mode that the internal player currently uses
 which has the problem?

 I don't notice any error events or log messages, just the wrong coloration
 on screen during playback. Audio seems fine, and as best as I can tell the
 video is playing back at normal framerates too.

Ticket URL: <http://svn.mythtv.org/trac/ticket/5999>
MythTV <http://www.mythtv.org/>

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