[mythtv-users] No video playback with Matrox G650

[Matthias Thyroff]

Hello, 

I am trying to get the mythfrontend to work on a PC with a Matrox G650
card, with the matrox drivers. 

XV works when playing videos with mplayer. Originally, playing videos
with xine would display wrong coulors until I used the option

Option             "XaaNoOffscreenPixmaps"

in xorg.conf. Now that works well, too. 

But in myth, when trying to watch live tv or recordings, I hear the
sound but do not see the image; the screen is black or green or purple (which points to chromakeying).
The video preview, for example in the recording screen, works. 

I am trying to watch on the PC screen via DVI. I am on 0.19.fixes on Ubuntu Dapper.

The output of "mythtv nuvfile.mpg" shows: 

2006-08-18 15:42:29.468 VideoOutputXv: Pixel dimensions: Screen 1280x1024, window 1280x1024
2006-08-18 15:42:29.469 VideoOutputXv: Estimated display dimensions: 342x271 mm Aspect: 1.26199
2006-08-18 15:42:29.469 VideoOutputXv: Estimated window dimensions: 342x271 mm Aspect: 1.26199
2006-08-18 15:42:29.472 VideoOutputXv: @ j=3 Looking for flag[s]: XvInputMask XvImageMask
2006-08-18 15:42:29.472 VideoOutputXv: Adaptor: 0 has flag[s]: XvInputMask XvVideoMask
2006-08-18 15:42:29.473 VideoOutputXv: Adaptor: 1 has flag[s]: XvInputMask XvImageMask
2006-08-18 15:42:29.473 VideoOutputXv: Grabbed xv port 61
2006-08-18 15:42:29.473 VideoOutputXv: XVideo surface found on port 61
2006-08-18 15:42:29.474 VideoOutputXv: XVideo Format #0 is 'YUY2'
2006-08-18 15:42:29.474 VideoOutputXv: XVideo Format #1 is 'YV12'
2006-08-18 15:42:29.474 VideoOutputXv: XVideo Format #2 is 'I420'
2006-08-18 15:42:29.475 VideoOutputXv: XVideo Format #3 is 'UYVY'
2006-08-18 15:42:29.475 VideoOutputXv: Using XVideo Format 'I420'
2006-08-18 15:42:29.475 VideoOutputXv: CreateShmImages(32): XJ: (480,576)
X Error: BadMatch (invalid parameter attributes) 8
  Major opcode:  140
  Minor opcode:  14
  Resource id:  0x1e8
2006-08-18 15:42:29.535 VideoOutputXv: Chromakeying not possible with this XVideo port.


Any ideas, except for changing the video card? (I am considering it, but actually, I always were convinced that the Matrox cards are quite good).

Thanks and best regards,

Matthias