[Bug 2859] Flickering or blanking on DVI output of Radeon 9200/9250

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=2859





--- Comment #107 from Mike <spambox at poczta.onet.pl>  2008-07-10 09:08:46 PST ---
> Can you try any of the other 1280x1024 modes and see if they work
> any better, you should have at least 4:
> 
> (II) RADEON(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 1688  1024
> 1025 1028 1066 +hsync +vsync (64.0 kHz)

same as xrandr: 1280x1024 at 60Hz - default, screen jumps only on user input,

> (II) RADEON(0): Modeline "1280x1024"x75.0  135.00  1280 1296 1440 1688  1024
> 1025 1028 1066 +hsync +vsync (80.0 kHz)

same as xrandr: 1280x1024 at 75Hz - screen jumps all the time.

> (II) RADEON(0): Modeline "1280x1024"x71.9  133.00  1280 1368 1504 1728  1024
> 1027 1034 1070 -hsync +vsync (77.0 kHz)

same as xrandr: 1280x1024 at 72Hz - screen jumps without user input, sometimes
stops,

> (II) RADEON(0): Modeline "1280x1024"x59.9  109.00  1280 1368 1496 1712  1024
> 1027 1034 1063 -hsync +vsync (63.7 kHz)

same as xrandr: 1280x1024 at 60Hz - default, screen jumps only on user input,



> Another option would be to try a cvt mode or a reduced refresh rate.
> Do either of the following modes help?
> 
> Modeline "1280x1024R"   90.75  1280 1328 1360 1440  1024 1027 1034 1054 +hsync
> -vsync
> Modeline "1280x1024_55.00_rb"  83.00  1280 1328 1360 1440  1024 1027 1034 1051 
> +HSync -Vsync
> Modeline "1280x1024_60.00_rb"  91.00  1280 1328 1360 1440  1024 1027 1034 1054 
> +HSync -Vsync
> Modeline "1280x1024_58.00_rb"  87.75  1280 1328 1360 1440  1024 1027 1034 1053 
> +HSync -Vsync

All of them works fine!


>> Grabbing ModeLines from Xorg.log and setting them in xorg.conf won't work
>> at all.
>> They are ignored. Modified config and logfile attached.
> I think that was a bug in xserver 1.3.0.
> xserver 1.3.0 also had a bug where it would reverse the sync polarity
> on modes from the edid.
> you might want to check if your xserver has been patched.

Could You please point to these commits in xserver tree?
That would be very helpfull.


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