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Stefan Mathe

2010-Sep-20 15:21 UTC

[Nouveau] Problems with dual head on NVidia Quadro NVS 295

Hello,

I'm having problems configuring the dual-head display using an NVidia
Quadro NVS 295 display card. It uses two identical LCD monitors (model
HP LP2475w), connected using DP cables. If I connect one single monitor
(either to the DP-1 or to the DP-2 output), the desktop shows up
correctly. If I connect both monitors, only the left monitor shows the
image, and the desktop is extended as if the second monitor were showing
something. But the right monitor remains blank.

I am using OpenSUSE 11.3, with the nouveau drivers included in its
kernel (kernel version 2.6.34). The relevant parts of xorg.conf.d are:

Section "Device"
  Identifier "Default Device"
  Option "SWcursor" "true"
  Option "monitor-DP-1" "LeftMonitor"
  Option "monitor-DP-2" "RightMonitor"
EndSection

Section "Monitor"
  Identifier "LeftMonitor"
  Option "PreferredMode" "1920x1200"
EndSection

Section "Monitor"
  Identifier "RightMonitor"
  Option     "RightOf" "LeftMonitor"
  Option     "PreferredMode" "1920x1200"
EndSection

Section "Screen"
  Identifier "Default Screen"
  Device "Default Device"
  Monitor "LeftMonitor"
  DefaultDepth 24
  SubSection "Display"
     Depth 24
     Virtual 3840 1200
  EndSubSection
EndSection

Section "ServerLayout"
  Identifier "Layout0"
  Screen 0 "Default Screen" 0 0
EndSection

Note that I had to set the mouse cursor to software rendering because it
was not showing up at all when using hardware rendering (cursor was
entirely invisible but the mouse was operational).

The output of the "xrandr" command is:

Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192
DP-1 connected 1920x1200+0+0 (normal left inverted right x axis y axis)
546mm x 352mm
   1920x1200      60.0*+   59.9 
   1920x1080      60.0 
   1600x1200      60.0 
   1680x1050      60.0 
   1600x1000      60.0 
   1280x1024      75.0 
   1280x960       60.0 
   1152x864       75.0 
   1024x768       75.1     60.0 
   832x624        74.6 
   800x600        75.0     60.3 
   640x480        75.0     60.0 
   720x400        70.1 
DP-2 connected 1920x1200+1920+0 (normal left inverted right x axis y
axis) 546mm x 352mm
   1920x1200      60.0*+   59.9 
   1600x1200      60.0 
   1680x1050      60.0 
   1600x1000      60.0 
   1280x1024      75.0 
   1280x960       60.0 
   1152x864       75.0 
   1024x768       75.1     60.0 
   832x624        74.6 
   800x600        75.0     60.3 
   640x480        75.0     60.0 
   720x400        70.1 

I have also attached my Xorg.0.log file.

Many thanks in advance for the help,
Stefan.
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Abelenda Diego

2010-Sep-20 15:53 UTC

head link

[Nouveau] Problems with dual head on NVidia Quadro NVS 295

On Mon, 20 Sep 2010 18:21:26 +0300
Stefan Mathe <mstefan at cs.toronto.edu> wrote:
> Hello,
> 
> I'm having problems configuring the dual-head display using an NVidia
> Quadro NVS 295 display card. It uses two identical LCD monitors (model
> HP LP2475w), connected using DP cables. If I connect one single
> monitor (either to the DP-1 or to the DP-2 output), the desktop shows
> up correctly. If I connect both monitors, only the left monitor shows
> the image, and the desktop is extended as if the second monitor were
> showing something. But the right monitor remains blank.
> 
> I am using OpenSUSE 11.3, with the nouveau drivers included in its
> kernel (kernel version 2.6.34). The relevant parts of xorg.conf.d are:
> 
> Section "Device"
>   Identifier "Default Device"
>   Option "SWcursor" "true"
>   Option "monitor-DP-1" "LeftMonitor"
>   Option "monitor-DP-2" "RightMonitor"
> EndSection
> 
> Section "Monitor"
>   Identifier "LeftMonitor"
>   Option "PreferredMode" "1920x1200"
> EndSection
> 
> Section "Monitor"
>   Identifier "RightMonitor"
>   Option     "RightOf" "LeftMonitor"
>   Option     "PreferredMode" "1920x1200"
> EndSection
> 
> Section "Screen"
>   Identifier "Default Screen"
>   Device "Default Device"
>   Monitor "LeftMonitor"
>   DefaultDepth 24
>   SubSection "Display"
>      Depth 24
>      Virtual 3840 1200
>   EndSubSection
> EndSection
> 
> Section "ServerLayout"
>   Identifier "Layout0"
>   Screen 0 "Default Screen" 0 0
> EndSection
> 
> Note that I had to set the mouse cursor to software rendering because
> it was not showing up at all when using hardware rendering (cursor was
> entirely invisible but the mouse was operational).
> 
> The output of the "xrandr" command is:
> 
> Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192
> DP-1 connected 1920x1200+0+0 (normal left inverted right x axis y
> axis) 546mm x 352mm
>    1920x1200      60.0*+   59.9 
>    1920x1080      60.0 
>    1600x1200      60.0 
>    1680x1050      60.0 
>    1600x1000      60.0 
>    1280x1024      75.0 
>    1280x960       60.0 
>    1152x864       75.0 
>    1024x768       75.1     60.0 
>    832x624        74.6 
>    800x600        75.0     60.3 
>    640x480        75.0     60.0 
>    720x400        70.1 
> DP-2 connected 1920x1200+1920+0 (normal left inverted right x axis y
> axis) 546mm x 352mm
>    1920x1200      60.0*+   59.9 
>    1600x1200      60.0 
>    1680x1050      60.0 
>    1600x1000      60.0 
>    1280x1024      75.0 
>    1280x960       60.0 
>    1152x864       75.0 
>    1024x768       75.1     60.0 
>    832x624        74.6 
>    800x600        75.0     60.3 
>    640x480        75.0     60.0 
>    720x400        70.1 
> 
> I have also attached my Xorg.0.log file.
> 
> Many thanks in advance for the help,
> Stefan.
Got exactly the same problem with an nvidia 9600GT and two DVI cables.
Using gentoo and I tested the kernels 2.6.34 2.6.35 and the 2.6.36_rc
nothing changed. Until now I had the two screens connected via a
DVI-to-VGA adapter and there was another problem, there was some
static on the second screen, but the nvidia proprietary driver did the
same thing.
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Ben Skeggs

2010-Sep-20 22:09 UTC

head link

[Nouveau] Problems with dual head on NVidia Quadro NVS 295

On Mon, 2010-09-20 at 18:21 +0300, Stefan Mathe wrote:> Hello,
> 
> I'm having problems configuring the dual-head display using an NVidia
> Quadro NVS 295 display card. It uses two identical LCD monitors (model
> HP LP2475w), connected using DP cables. If I connect one single monitor
> (either to the DP-1 or to the DP-2 output), the desktop shows up
> correctly. If I connect both monitors, only the left monitor shows the
> image, and the desktop is extended as if the second monitor were showing
> something. But the right monitor remains blank.This is expected.  Nouveau can't fully program a native DP output on its
own yet, and relies on assistance from the video BIOS.  As such, only
displays which have previously been initialised by the VBIOS will work.

Ben.> 
> I am using OpenSUSE 11.3, with the nouveau drivers included in its
> kernel (kernel version 2.6.34). The relevant parts of xorg.conf.d are:
> 
> Section "Device"
>   Identifier "Default Device"
>   Option "SWcursor" "true"
>   Option "monitor-DP-1" "LeftMonitor"
>   Option "monitor-DP-2" "RightMonitor"
> EndSection
> 
> Section "Monitor"
>   Identifier "LeftMonitor"
>   Option "PreferredMode" "1920x1200"
> EndSection
> 
> Section "Monitor"
>   Identifier "RightMonitor"
>   Option     "RightOf" "LeftMonitor"
>   Option     "PreferredMode" "1920x1200"
> EndSection
> 
> Section "Screen"
>   Identifier "Default Screen"
>   Device "Default Device"
>   Monitor "LeftMonitor"
>   DefaultDepth 24
>   SubSection "Display"
>      Depth 24
>      Virtual 3840 1200
>   EndSubSection
> EndSection
> 
> Section "ServerLayout"
>   Identifier "Layout0"
>   Screen 0 "Default Screen" 0 0
> EndSection
> 
> Note that I had to set the mouse cursor to software rendering because it
> was not showing up at all when using hardware rendering (cursor was
> entirely invisible but the mouse was operational).
> 
> The output of the "xrandr" command is:
> 
> Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192
> DP-1 connected 1920x1200+0+0 (normal left inverted right x axis y axis)
> 546mm x 352mm
>    1920x1200      60.0*+   59.9 
>    1920x1080      60.0 
>    1600x1200      60.0 
>    1680x1050      60.0 
>    1600x1000      60.0 
>    1280x1024      75.0 
>    1280x960       60.0 
>    1152x864       75.0 
>    1024x768       75.1     60.0 
>    832x624        74.6 
>    800x600        75.0     60.3 
>    640x480        75.0     60.0 
>    720x400        70.1 
> DP-2 connected 1920x1200+1920+0 (normal left inverted right x axis y
> axis) 546mm x 352mm
>    1920x1200      60.0*+   59.9 
>    1600x1200      60.0 
>    1680x1050      60.0 
>    1600x1000      60.0 
>    1280x1024      75.0 
>    1280x960       60.0 
>    1152x864       75.0 
>    1024x768       75.1     60.0 
>    832x624        74.6 
>    800x600        75.0     60.3 
>    640x480        75.0     60.0 
>    720x400        70.1 
> 
> I have also attached my Xorg.0.log file.
> 
> Many thanks in advance for the help,
> Stefan.
> _______________________________________________
> Nouveau mailing list
> Nouveau at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/nouveau

Nouveau - Sep 2010 - Problems with dual head on NVidia Quadro NVS 295

[Nouveau] Problems with dual head on NVidia Quadro NVS 295

[Nouveau] Problems with dual head on NVidia Quadro NVS 295

[Nouveau] Problems with dual head on NVidia Quadro NVS 295