Resolution won't go above 1024x768

Raccoon1400 · 05-21-2008, 02:27 PM

I added the 1280x1024 modes to xorg.conf
I set the drivers to ati
LCD monitor
32 MB rage ati card

I restarted X and the resolution still 1024x768. There was no 1280 option under desktop properties on KDE either.

SqdnGuns · 05-21-2008, 02:43 PM

Did you set the right horizontal and vertical for your monitor in xorg.conf? Example below:

Code:

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "Monitor Vendor"
        ModelName    "Monitor Model"
        HorizSync    30-107
        VertRefresh  48-120
EndSection

Hevoos · 05-21-2008, 02:44 PM

Use GTF:

Code:

gtf 1280 1024 65

  # 1280x1024 @ 65.00 Hz (GTF) hsync: 69.09 kHz; pclk: 119.40 MHz
  Modeline "1280x1024_65.00"  119.40  1280 1368 1504 1728  1024 1025 1028 1063  -HSync +Vsync

Here it's the hsync: 69.09 part that's important. Copy it to your xorg.conf so that the monitor section contains something like this:

Code:

HorizSync       69.09   # This is the resolution
VertRefresh     65      # Stands for the refresh rate, in this case 65 Hz

Restart X and you should be fine.

P.S. Remember to use GTF with your own refresh rate, if your screen has 70 Hz instead of the 65 that I use you should change the line too:

Code:

gtf 1280 1024 70

Best of luck!

serafean · 05-21-2008, 02:57 PM

Hi,

How old is your card? I too have an old ati card that doesn't support textures larger than 1024 pixels (found out today). My guess is that all you have to do is disable composite/aiglx. Just edit your xorg.conf :

Code:

Section "ServerFlags"
   Option "AIGLX" "disable"
EndSection

Section "Extensions"
    Option "Composite" "disable"
EndSection

Serafean

Raccoon1400 · 05-21-2008, 03:44 PM

Fixed it with xorgconfig. This also fixed the problem of the scroll button on the mouse not working.

T3slider · 05-21-2008, 04:20 PM

Hevoos, although not necessary in this case, I should point out that `cvt` is newer than `gtf` and should be used instead. Google for cvt to find out more info. Using gtf instead of cvt really doesn't make much of a difference, but for the sake of completeness I figured I should mention it.

Hevoos · 05-24-2008, 09:45 AM

Quote:

Originally Posted by T3slider

Hevoos, although not necessary in this case, I should point out that `cvt` is newer than `gtf` and should be used instead. Google for cvt to find out more info. Using gtf instead of cvt really doesn't make much of a difference, but for the sake of completeness I figured I should mention it.

Thank you for mentioning!

As you said there wasn't too much of a difference, but I'll recommend cvt in the future.