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Old 10-14-2005, 10:34 PM   #16
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Registered: Oct 2005
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For future reference, you may want to try running "fglrxconfig", which should come with the proprietary ATI drivers. It will probably be in /opt/ATI/bin or whatever. It will prompt you with questions and generate the X.Org file based upon that.
Old 10-15-2005, 11:10 AM   #17
Registered: Sep 2005
Location: Old Blighty
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How to i then choose between 2 xorg.config files when starting up a new Xserver?
If you start X from the command line, use the -config <file> option (obviously you'd wrap that in a script/shell function).

I dunno anything about xdm/kdm/gdm/whatever, but you should be able to specify a different file somehow (I think /etc/X11/xdm/Xservers is the file to look at for xdm, dunno about kdm etc).

You should have the ati documentation in /usr/share/doc/fglrx.



talks about dual-head configuration. The clone mode uses a virtual desktop, which seems to be what you have at the moment. It looks like you want dual-head, with a seperate framebuffer on each head.

OK, I tried it last night, using the tv out and it seemed to work OK. There are two seperate X servers (though only 1 instance of X was running). I could move the mouse between them but not windows etc. Ctrl-Alt-{+,-} changed the res on each head seperately. It was a bit wierd as I don't have a TV! I only have a tv card, so I had to display the second head in a window (using tvtime) on the primary head!! I ran fglrxconfig to set it up, then merged the changes into my existing conf file.

However, on Slackware 9.1 I have no DRI. That is, DRI initializes OK but when I run any 3d app, it just sits there doing nothing (I can ^C it etc). Now, 9.1 is two years old now, so I figured (well, hoped ) it was just some minor library mismatch or something like that. I chucked a test install of Suse 9.2 on a spare partition and 3d works OK with that. However, it crashed when I tried to run tvtime with dual-head setup (tvtime works OK in single head mode).

I just installed Slackware 10.2 and now 3d is totally screwed. glxgears works OK but fgl_glxgears doesn't! Neither do Quake 3/UT2004 etc. That was with the 2.4.31 kernel. I installed but the driver wouldn't install (it wouldn't build the fglrx.ko module properly). Dunno, why, Suse uses 2.6.8 and that's OK. So WTF is going on there? I will download the latest driver and give that a try.

Anyway, if you can get it to work, it looks like dual-head could be the best way to go.

BTW, for some reason I was still getting the same warning you got

(WW) fglrx: No matching Device section for instance (BusID PCI:2:0:1) found

even with the tv out working, so I don't know WTF is going on there? Didn't seem to make any difference anyway.


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