Arch Linux

dcreatorx

Member

Registered: 2009-03-24

Posts: 3

Problems with ATI Radeon mobility ! CLASSIXX !

Hi guys, I have installed Arch in a laptop with this card :

01:00.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10]

I have an VGA out and when I connect a second monitor, I can't change the resolution from 1024 x 768 to a bigger one.
Another thing is that when I try to use Xrandr to get an extended desktop I get this message and I can't do a thing :

Xlib:  extension "Generic Event Extension" missing on display ":0.0".

Any ideas ? I have searched around the forums but I can't find any similar post.

Thanks.

CursedMonkey

Member

Registered: 2008-08-30

Posts: 45

Re: Problems with ATI Radeon mobility ! CLASSIXX !

Which ATI driver are you using (eg. catalyst, radeonhd, or ati).

Also, the Xlib extension missing message is just a warning and can be ignored.

dcreatorx

Member

Registered: 2009-03-24

Posts: 3

Re: Problems with ATI Radeon mobility ! CLASSIXX !

I'm using the normal Radeon, following the Arch WIKI. Thanks. ( the normal radeon means the driver "radeon" ).

Last edited by dcreatorx (2009-03-25 09:23:19)

CursedMonkey

Member

Registered: 2008-08-30

Posts: 45

Re: Problems with ATI Radeon mobility ! CLASSIXX !

Sorry, I mean radeon instead of ati.

From: http://www.cyberciti.biz/tips/linux-res … ickly.html
Basically it says to use:

xrandr -q

to get the displays and resolutions. Then use:

xrandr -s <SZ>

to set the resolution you want. Where SZ is the code matching the resolution you want.

dcreatorx

Member

Registered: 2009-03-24

Posts: 3

Re: Problems with ATI Radeon mobility ! CLASSIXX !

Hi thank you for your response, I can-t see any "size code" here.
Also, how do you select the display you want to resize from command line  ?

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1600 x 1200
VGA-0 connected (normal left inverted right x axis y axis)
   1024x768       75.1 +   75.0     70.1     60.0
   1280x1024      60.0 +   75.0     60.0     60.0
   1600x1200      75.0     70.0     65.0     60.0
   1600x1024      60.2
   1400x1050      75.0     72.0     60.0
   1440x900       59.9
   1280x960       75.0     72.0     60.0
   1360x768       59.8
   1152x864       75.0     75.0     75.0     70.0     60.0     60.0
   832x624        74.6
   800x600        72.2     75.0     60.3     56.2
   768x576        75.0     72.0     60.1
   640x480        72.8     75.0     72.8     75.0     60.0     59.9
   720x400        70.1
LVDS connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0*+   59.9
   1280x800       60.0 +
   800x600        60.3     59.9
   640x480        59.9     59.4
S-video disconnected (normal left inverted right x axis y axis)

CursedMonkey

Member

Registered: 2008-08-30

Posts: 45

Re: Problems with ATI Radeon mobility ! CLASSIXX !

The format of the output for xrandr might have changed.

You can do:

man xrandr

to figure out how to use it. Look for how to use the -s option and the -q option. You may also have to use the -screen option.