[Intel-gfx] Dual-display support with 945G/GZ and ADD2-R adapter ?

[Teemu Tuominen]

Teemu Tuominen wrote:
> Teemu Tuominen wrote:
>   
>> Jin, Gordon wrote:
>>   
>>     
>>> Teemu Tuominen wrote on Thursday, May 07, 2009 8:30 PM:
>>>   
>>>     
>>>       
>>>> Hi,
>>>>
>>>> Is dual-display configuration currently possible with IBM ThinkCentre
>>>> 8113V1Q using ADD2-R dvi extension card ?
>>>>     
>>>>       
>>>>         
>>> Yes. If you want clone display, just startx without xorg.conf should be working. If you want extended desktop, please refer to http://intellinuxgraphics.org/dualhead.html. If you still have problem, please file a bug with log attached according to http://intellinuxgraphics.org/how_to_report_bug.html.
>>>
>>> Gordon
>>> _______________________________________________
>>> Intel-gfx mailing list
>>> Intel-gfx at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>>>   
>>>     
>>>       
>> Thanks for answering,
>> I have tried e.g. following extended desktop configuration
>>   
>>     
>>> Section "Monitor"
>>> Identifier "Samsung940n_1"
>>> Option "DPMS"
>>> EndSection
>>>
>>> Section "Monitor"
>>> Identifier "Samsung940n_2"
>>> Option "DPMS"
>>> Option "Position" "1280 0"
>>> EndSection
>>>
>>> Section "Device"
>>> Identifier "Intel"
>>> Driver "intel"
>>> Option "monitor-VGA" "Samsung940n_1"
>>> Option "monitor-TMDS-1" "Samsung940n_2"
>>> EndSection
>>>
>>> Section "Screen"
>>> Identifier "Screen 0"
>>> Device "Intel"
>>> Monitor "Samsung940n_1"
>>> DefaultDepth 24
>>> SubSection "Display"
>>> Depth 24
>>> Modes "1280x1024" "1024x768" "800x600" "640x480"
>>> Virtual 2560 1024
>>> EndSubSection
>>> EndSection
>>>     
>>>       
>> xrandr -q shows exotic resolutions and If I run it sequentially it 
>> sometimes shows TMDS-1 connected and segfaults as if it would not stay 
>> enabled. Enable/true option seems not affect.
>>   
>>     
>>> Screen 0: minimum 320 x 200, current 2304 x 768, maximum 2560 x 1024
>>> VGA connected 1024x768+0+0 (normal left inverted right x axis y axis) 
>>> 376mm x 301mm
>>> 1280x1024 60.0 + 75.0 59.9
>>> 1280x960 59.9
>>> 1152x864 75.0 74.8
>>> 1024x768 75.1 70.1 60.0*
>>> 832x624 74.6
>>> 800x600 72.2 75.0 60.3 56.2
>>> 640x480 75.0 72.8 66.7 60.0
>>> 720x400 70.1
>>> TMDS-1 disconnected 1024x768+1280+0 (normal left inverted right x axis 
>>> y axis) 0mm x 0mm
>>>     
>>>       
>> ?
>>
>> -Teemu
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>>   
>>     
> getting any closer ?
>
> I added manual modelines and preferred option to monitor sections  -- 
> and I now get
>  
>   
>> # xranrd -q
>> Screen 0: minimum 320 x 200, current 2560 x 1024, maximum 2560 x 1024
>> VGA connected 1280x1024+0+0 (normal left inverted right x axis y axis) 
>> 376mm x 301mm
>>    1280x1024_60   60.0*+
>>    1280x1024      60.0     75.0     59.9 
>>    1280x960       59.9 
>>    1152x864       75.0     74.8 
>>    1024x768       75.1     70.1     60.0 
>>    832x624        74.6 
>>    800x600        72.2     75.0     60.3     56.2 
>>    640x480        75.0     72.8     66.7     60.0 
>>    720x400        70.1 
>> TMDS-1 connected 1280x1024+1280+0 (normal left inverted right x axis y 
>> axis) 0mm x 0mm
>>    1280x1024_60   60.0*+
>>    1024x768       60.0 
>>    800x600        60.3 
>>    640x480        59.9  
>>     
> but monitor stays idle.
>  
>
> -Teemu
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>   
Hi again,

Updated Thinkcentre bios, compiled latest xserver and intel-gfx.

now I seem to get more log from what is happening with ADD2-R connected 
monitor... It seems to leave in DDC detection loop taking full cpu. I 
think this is why xrandr shows occasionally "TMDS-1 disconnected".
> (II) intel(0): EDID vendor "SAM", prod id 481
> (II) intel(0): I2C device "SDVOB DDC Bus:ddc2" registered at address 0xA0.
> (II) intel(0): I2C device "SDVOB DDC Bus:ddc2" removed.
> (II) intel(0): EDID vendor "SAM", prod id 481
> (II) intel(0): Using hsync ranges from config file
> (II) intel(0): Using vrefresh ranges from config file
> (II) intel(0): Printing DDC gathered Modelines:
> ....
Any clue what is causing this ?

could it be due the kernel version, i'm running 2.6.29 ?

Thanks,
Teemu