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

[Buchner Michael]

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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