[Openchrome-users] openchrome - epia SN18000G - resolution problems

[Buchner Michael]

Buchner Michael wrote:
> Xavier Bachelot wrote:
>> Buchner Michael wrote:
>>> Hi there,
>>>
>>> I've a problem with the setup mentioned in the topic and I'm running 
>>> out of ideas ;( Maybe one of you can help me or at least give me some 
>>> hints what to do ...
>>>
>>> Well as you can imagine I'm using openchrome as driver for my 
>>> graphics card. My Mainboard is the via epia SN18000G vith VIA VT8251 
>>> South Bridge and CN896 North Bridge. 
>>> (http://www.via.com.tw/en/products/mainboards/motherboards.jsp?motherboard_id=550) 
>>>
>>> I've played a lot to get Xorg running a now it basically is, BUT with 
>>> some problems. i want to connect my LCD TV Screen to be used as 
>>> monitor. The TV's user manual says that the resolution is 1366x768 
>>> with 60Hz.
>>> within the xorg log file I can see this:
>>> (**) CHROME(0): *Mode "1280x720": 59.4 MHz (scaled from 0.0 MHz), 
>>> 37.9 kHz, 50.1
>>>  Hz
>>> (II) CHROME(0): Modeline "1280x720"   59.42  1280 1312 1536 1568  720 
>>> 735 741 75
>>> 7
>>>  which is the supported resolution according to edid (?)
>>>
>>> If I use the modeline manually (or another one for 1366x720 at 60) the 
>>> resolution is ok but I get some kind of flickering. If I don't use 
>>> any modeline the resolution is at 1280x720 according to xvidtune but 
>>> the picture is not fitting the monitor. it seems to feel that my 
>>> screen is bigger in either direction as it actually is. but there is 
>>> no flickering ...
>>>
>>> I also should mention that I need to use the
>>>      Option          "DDC" "false"
>>> within the Screen Section of xorg.conf. Otherwise I only get 1024x768.
>>>
>>> I really can't remember what I've already tried ... way too much ;)
>>> Does anyone have any idea?
>>>
>>> Thanks a lot
>>>
>> How is your TV connected to the board ?
>> Please post your xorg conf and xorg log (compressed). My bet would be 
>> either you are using Option "VBEModes" either you are using Option 
>> "ActiveDevice" "LCD".
>>
>> Regards,
>> Xavier
>>
> Hi,
> 
> TV is connected via VGA cable. I've used both settings during my 
> experiments with xorg, but right now it's not included anymore. It's now 
> stripped down to a very basic and simple xorg.conf (see attached)
> 
> thanks
> 
> 
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does anyone have some hints for me? ;)