I have two machines with different hardware that are using nouveau with Randr12. One of them works fine. The other one is behaving oddly. If I set "Virtual 3200 1200" in the xorg.conf and start up X, only the DVI monitor displays anything. The VGA is blank. If I run `xrandr --output VGA-0 --right-of DVI-D-0`, then the VGA screen lights up and everything is happy. However, if I try to tell xorg.conf to put VGA-0 right of DVI-D-0 (which is what I successfully do on the other computer), then the VGA monitor stays blank, even though X apparently thinks it is using two monitors. Here's what's at the bottom of xorg.conf: Section "Monitor" Identifier "DVI-D-0" EndSection Section "Monitor" Identifier "VGA-0" Option "RightOf" "DVI-D-0" EndSection When I use this configuration, switching which display is left and which is right doesn't help. If I do `xrandr --output VGA-0 --left-of DVI-D-0`, then the DVI gets the other half of the virtual screen and whatever windows should have been displayed on the VGA. However, the VGA is still blank. At this point, if I do `xrandr --output VGA-0 --same-as DVI-D-0`, then suddenly the VGA lights up and displays correctly. I can now put VGA-0 to the right of or left of DVI-D-0; all of the xrandr commands work perfectly. I'm using the latest version of nouveau from git. The machine is running Fedora Rawhide. In case it helps, here's the output from `lspci -v` about the video card: 05:00.0 VGA compatible controller: nVidia Corporation NV44A [GeForce 6200] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Unknown device 196e:02f0 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16 Memory at fd000000 (32-bit, non-prefetchable) [size=16M] Memory at d0000000 (32-bit, prefetchable) [size=256M] Memory at fc000000 (32-bit, non-prefetchable) [size=16M] Expansion ROM at feae0000 [disabled] [size=128K] Capabilities: [60] Power Management version 2 Capabilities: [44] AGP version 3.0 Kernel driver in use: nvidia Kernel modules: nvidia, nvidiafb I hope this is helpful.
Created attachment 16131 [details] Xorg.0.log Attaching Xorg.0.log. In this particular case, Monitor VGA-0 has Option "SameAs" "DVI-D-0". I've also tried with RightOf. In both cases, the VGA monitor is blank.
http://wiki.debian.org/XStrikeForce/HowToRandR12 Try that, i think you made a small mistake with the syntax. (eg, you need to add Option "Monitor-DVI-D-0" "foomon" to your device section for example)
Created attachment 16132 [details] xorg.conf I tried doing what you recommended, but it didn't seem to help. Here's the new xorg.conf. By the way, the page you pointed to had an example that said: # no need to specific Monitor-VGA-0, it uses the "VGA-0" identifier automatically This seems to be consistent with how things are working on the other machine, where the RightOf, LeftOf, etc. were being respected even though there was no Option "Monitor-DVI-D-0" "FOO" Thanks again for your help.
Also note that the Xorg.0.log says: Output DVI-D-0 using monitor section DVI-D-0 and Output VGA-0 using monitor section VGA-0 even when the Option "Monitor-VGA-0" "FOO" isn't specified. Thanks.
Created attachment 16133 [details] xorg.conf (fixed typo)
Is this still an issue?
I don't have any nVidia hardware anymore, so I don't have any way to check. It's been a really long time since I filed the bug.
Reporter does not have the hardware anymore, last reponse one year ago. Closing. If the problem still exists on current version, please reopen with new set of logs.
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