No GUI after installing ATI Driver HD6770

[tuke81]

Hmm how is your vga cable, that log says it probes edid 4 times; failing 3 and succeeding ones. Are you using tft or crt and can you use dvi cable instead of vga.

[vedrisha]

I have VGA cable only with connector for DVI. My monitor doesn't have DVI connector. btw I have LG E2251 LCD.

[tuke81]

I have VGA cable only with connector for DVI. My monitor doesn't have DVI connector. btw I have LG E2251 LCD.

Hmm LG, it has same named displays for different countries and with different outputs. Check the cable that it has all 15 pins on it, some vga cables might leave some pins out(specially that both 12th and 15th pins exist).

Another thing is that lg has been quite notorius by having broken edid tables. That can be workarounded by software side: you could probe edid directly from display with get-edid parse-edid combo, those can be found in read-edid package: sudo apt-get install read-edid

And then probe the edid from the monitor: sudo get-edid | sudo parse-edid

If there indeed are problems getting edid or getting broken edid tables from the monitor, you could check if you can find something from ubuntuforums thread conserning subject matter:

http://ubuntuforums.org/showthread.php?t=1857772

http://ubuntuforums.org/showthread.php?t=316985

[vedrisha]

Hmm LG, it has same named displays for different countries and with different outputs. Check the cable that it has all 15 pins on it, some vga cables might leave some pins out(specially that both 12th and 15th pins exist).

Another thing is that lg has been quite notorius by having broken edid tables. That can be workarounded by software side: you could probe edid directly from display with get-edid parse-edid combo, those can be found in read-edid package: sudo apt-get install read-edid

And then probe the edid from the monitor: sudo get-edid | sudo parse-edid

If there indeed are problems getting edid or getting broken edid tables from the monitor, you could check if you can find something from ubuntuforums thread conserning subject matter:

http://ubuntuforums.org/showthread.php?t=1857772

http://ubuntuforums.org/showthread.php?t=316985

Thanks for reply, but at the end I managed to fix the problem today. I installed 12.04 and checked if there is 3D acceleration with default driver and it was there. Later on I googled how to change resolution on Full HD and managed to do that.
So now ';m running Ubuntu 12.04 with Full HD resolution with 3D acceleration. The only thing I don't have is ATI Control Center, which I don't really need.
Thank you all once again for your replies, you are all great!!!