Dual monitors on fglrx 10.5 / Slackare 13.1

[adamk]

I can't get fglrx to let me run two monitors at 1280x1024. If I try to adjust the resolution, I get the dreaded: "xrandr: screen cannot be larger than 2048x2048 (desired size 2560x1024)"

Fglrx, however, has chosen to ignore the Virual I have in my xorg.conf file:

Section "ServerLayout"
	Identifier     "aticonfig Layout"
	Screen      0  "aticonfig-Screen[0]-0" 0 0
EndSection

Section "Files"
EndSection

Section "Module"
EndSection

Section "Monitor"
	Identifier "DFP2"
EndSection

Section "Monitor"
	Identifier "CRT2"
    	Option "RightOf" "DFP2"
EndSection

Section "Device"
	Identifier  "aticonfig-Device[0]-0"
	Driver      "fglrx"
	BusID       "PCI:7:0:0"
	Option 	"Monitor-DFP2" "DFP2"
	Option	"Monitor-CRT2" "CRT2"
EndSection

Section "Screen"
	Identifier "aticonfig-Screen[0]-0"
	Device     "aticonfig-Device[0]-0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Virtual	     2560 1024
	EndSubSection
EndSection[

And the /var/log/Xorg.0.log file: http://pastebin.com/c2XZucGd

There's no mention of "Virtual" in that log file.

How can I get this working?

Adam

[bridgman]

Do you get the same error message when you use the xorg.conf created by aticonfig --initial -f ?

[adamk]

Yes, I get the error message then, too. I have managed to fix it, though. I had to set the Virtual to 2560 2560 rather than 2560 1024. Not sure why as I was just trying to run the two monitors at 1280x1024. I think fglrx needs a little work on its math and logic skills :-)

Adam

[pflynn]

Hi Adam.

Have you applied any patch to the 10.5 catalyst driver before installing it? Or have you just installed the vanilla drivers from ATI's website?

Thanks.

[adamk]

I, personally, did not apply any patch, though the installer included a patch to get the driver to compile on > 2.6.33.

Adam

[pflynn]

Hmmm...you mean, not only the original install program from ATI, but a third part one?

[adamk]

No, the original install program. It says:

Found internal patch:
        patch-8.73x-2.6.33+

When it builds the slackware packages.

Adam

[pflynn]

Nice...
I've just extracted the file with the --extract option:

sh ati-driver-installer-10-5-x86.x86_64.run --extract

and then, I've found the files related to the patch you are referring to:

find . -name "*patch*"
(...)
./packages/Slackware/patch
./packages/Slackware/patch/patch-8.73x-2.6.33+
./packages/Slackware/patch_functions.sh
(...)

So I'll start to upgrade now. I also have a multi-monitor setup (3 monitor), and perhaps the same card as you do (4850). If I get into the same problem as you, I hope I can solve it and help you to.

Thanks!

[pflynn]

Well, well, well...

I've successfully installed Slackware 13.1 and Catalyst 10.5, thanks to your hint about building a Slackware package:

sh ati-driver-installer-10-5-x86.x86_64.run --buildpkg Slackware/All" 

but I had no joy configuring my 3 monitor xinerama setup:

aticonfig --initial=dual-head -f --adapter=all --xinerama=on 

command status is OK, xorg.conf is created, but whenever I start X, I get three blank screens and an irresponsible system. Xorg.0.log shows a nice segmentation fault:

(II) AIGLX: Loaded and initialized /usr/X11R6/lib64/modules/dri/fglrx_dri.so
(II) GLX: Initialized DRI GL provider for screen 1

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x28) [0x461c78]
1: /usr/bin/X (0x400000+0x5a799) [0x45a799]
2: /lib64/libpthread.so.0 (0x7fca4e3d2000+0xf770) [0x7fca4e3e1770]
3: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0x1204f8) [0x7fca48c7a4f8]
4: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0x1208b7) [0x7fca48c7a8b7]
5: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0x120e3f) [0x7fca48c7ae3f]
6: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0xa657b) [0x7fca48c0057b]
7: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0xa6772) [0x7fca48c00772]
8: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0xcb67e) [0x7fca48c2567e]
9: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0xd6ab9) [0x7fca48c30ab9]
10: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0xd82ed) [0x7fca48c322ed]
11: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0x3f8fd) [0x7fca48b998fd]
12: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0x36c12) [0x7fca48b90c12]
13: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0x36d99) [0x7fca48b90d99]
14: /usr/lib64/xorg/modules/glesx.so (esutInit+0x8b) [0x7fca48b8f71b]
15: /usr/lib64/xorg/modules/glesx.so (0x7fca48b5a000+0x2749c) [0x7fca48b8149c]
16: /usr/lib64/xorg/modules/glesx.so (GlesxExtensionInit+0x75) [0x7fca48b81805]
17: /usr/bin/X (InitExtensions+0x89) [0x482b29]
18: /usr/bin/X (0x400000+0x22587) [0x422587]
19: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x7fca4d211b6d]
20: /usr/bin/X (0x400000+0x222c9) [0x4222c9]
Segmentation fault at address (nil)

Fatal server error:
Caught signal 11 (Segmentation fault). Server aborting


Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help. 
Please also check the log file at "/var/log/Xorg.0.log" for additional information.

(II) AIGLX: Suspending AIGLX clients for VT switch
(II) fglrx(0): Backup framebuffer data.
(II) fglrx(0): Backup complete. 

Look like there are some regressions in 10.5 with 2.6.33 and no luck for dual or triple monitor users

[rohcQaH]

all I can tell you is that the "Virtual" line works for me (HD 5770, fglrx 10.5, gentoo). The only real difference I see between our xorg.conf's is that you don't specify the Monitor in your Screen section.

My xorg.0.log doesn't mention the "Virtual" line, either.


In any case, try to get the 1-card-2-monitor-setup working before trying Xinerama.