Bug#465864: xserver-xorg-video-ati: xserver freezes the computer on startup

[Jiří Paleček]

On Wed, 27 Feb 2008 23:32:24 +0100, Alex Deucher <alexdeucher at gmail.com>  
wrote:

> 2008/2/27 Jiri Palecek <jpalecek at web.de>:
>>
>> On Monday 25 February 2008 18:18:32 Alex Deucher wrote:
>>  > There's something about 1400x1050 mode that the driver doesn't like.
>>  > if you remove the preferred mode from your monitor section, does the
>>  > server come up?  You might want to try another modeline for  
>> 1400x1050.
>>
>>  Indeed, the server started with the "PreferredMode" commented out.  
>> However,
>>  changing the mode to this mode hang the computer.
>>
>>  What other modeline do you mean? I copied this one from earlier xorg,  
>> where it
>>  was autodetected.
>
> try cvt:
>
> $ cvt 1400 1050 60
> # 1400x1050 59.98 Hz (CVT 1.47M3) hsync: 65.32 kHz; pclk: 121.75 MHz
> Modeline "1400x1050_60.00"  121.75  1400 1488 1632 1864  1050 1053
> 1057 1089 -hsync +vsync
>
> $ cvt 1400 1050 75
> # 1400x1050 74.87 Hz (CVT 1.47M3) hsync: 82.28 kHz; pclk: 156.00 MHz
> Modeline "1400x1050_75.00"  156.00  1400 1504 1648 1896  1050 1053
> 1057 1099 -hsync +vsync

OK. So I tried this:

Section "Monitor"
         Identifier      "Generic Monitor"
         Option          "DPMS"
         HorizSync       30-95
         VertRefresh     50-160
         Modeline        "1400x1050"  184.00  1400 1464 1656 1960  1050  
1051 1054 1100 +hsync +vsync
# 1400x1050 84.96 Hz (CVT 1.47M3) hsync: 93.88 kHz; pclk: 179.50 MHz
Modeline "1400x1050_85.00"  179.50  1400 1512 1656 1912  1050 1053 1057  
1105 -hsync +vsync
# 1400x1050 74.87 Hz (CVT 1.47M3) hsync: 82.28 kHz; pclk: 156.00 MHz
Modeline "1400x1050_75.00"  156.00  1400 1504 1648 1896  1050 1053 1057  
1099 -hsync +vsync
# 1400x1050 59.98 Hz (CVT 1.47M3) hsync: 65.32 kHz; pclk: 121.75 MHz
Modeline "1400x1050_60.00"  121.75  1400 1488 1632 1864  1050 1053 1057  
1089 -hsync +vsync
         Option          "PreferredMode" "1400x1050"
EndSection

The 60 an 75 Hz variants work under 6.8.0, the 85 Hz doesn't.

Regards
     Jiri Palecek