Using the Graphics Card with the ATI fglrx driver

Configuration

You can create new configuration files suitable for the fglrx driver with the fglrxconfig tool, alternatively you can also use aticonfig to change configuration parameters. Better backup /etc/X11/xorg.conf before using either of the two utilities.

Supported modes for multi-monitor setups

Attached at the bottom of the page you can find the xorg.conf files I use for the various multi-monitor modes that the ATI binary driver supports and also TV-out. A few notes:

  • no example for "Mirror" mode, which is pretty useless if you don't happen to have an external monitor matching the notebook's LCD resolution, i.e. 1400x1050, which I don't.
  • the external display I use has a max. resolution of 1280x1200, if your monitor supports less be sure to check the HorizSync, VertRefresh, HSync2 and VRefresh2 options.
  • I'm living in Europe, hence my TV understands PAL (connected via S-Video), so if you need NTSC or something else, check the TVFormat and TVStandard options. aticonfig run without arguments lists all available values.
  • I have configured my input devices (TouchPad, Trackpoint, external mouse) with their special files in /dev/input and not /dev/input/mice. There's a good chance that your file-to-device mapping looks different, so check if you're using the correct device files in /dev/bus/input/devices. Or just use /dev/input/mice in which case you'll lose the ability to configure some settings per device.

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Comments

Martin's picture

Hi,

I am using the fglrx driver together with the dualhead configuration. Both the laptop LCD as well as my external display (connected through DVI) work fine. I can drag the mouse cursor back and forth. However, I cannot drag any windows from one screen to the other. as soon as I cross the border of one screen, the window appears on the opposite side of the same screen. Does anybody have an idea where to fix that?

Thanks,

Martin.

Wolfgang Karall-Ahlborn's picture

AFAIK you can't move windows from one display to the other, you have to use e.g. the bigdesktop config for that. Or you can play around with 'xmove', but that was rather buggy the last time I tried it.