Bug#176014: [ati/r128] XVideo bug gives me a stretched video output window (or blue screen)

["Marc F. Clemente" <marc@mclemente.net>]

After some experimentation, the modeline issue is probably a red 
herring.  I changed the following lines in the XF86Config-4:

Section "Monitor"
        Identifier      "IBM LCD Display"
        HorizSync       30-75
        VertRefresh     50-85
        Option          "DPMS"
EndSection

And it now uses the following modeline (which is mathematically correct):

(**) R128(0): Default mode "1600x1200": 162.0 MHz, 75.0 kHz, 60.0 Hz
(II) R128(0): Modeline "1600x1200"  162.00  1600 1664 1688 2160  1200 
1202 1205 1250 +hsync +vsync

I get the same problem with xine displaying only half of the output window.

I tried the 4.2.1-4pre5v1 pre-release.  No change.

I tried 1280x1024 and 1024x768 and I get the same problem.

And actually, at 1280x1024 and 1024x768, the display window is stretched 
horizontally, but is also compressed vertically.

I would give screen captures, but they don't work for the xvideo window. 
 So you can instead look at photos of my laptop.  Xvideo is on the left 
and Xshm is on the right.

http://www.mclemente.net/~marc/dscn0769.jpg  (1600x1200)
http://www.mclemente.net/~marc/dscn0770.jpg  (1280x1024)
http://www.mclemente.net/~marc/dscn0772.jpg  (1024x768)