Problem with nvidia and resolution when non-root

gosssamer · 12-22-2010, 08:27 PM

Hi,

I have a working FC14 x86_64 install with the rpmfusion nvidia drivers and successfully have it working as root at 1920x1080 using just startx. However, when I run startx as a normal user, the display is only 1280x1024. What could be the reason for this?

The /var/log/Xorg.0.log reports that it's using the /etc/X11/xorg.conf file, and there is no mention of 1280x1024 in the xorg.conf. In fact, it's listed as 1920x1080.

I searched quite a bit for this without success, but not really sure
how to troubleshoot this. Here is some relevant information:

From Xorg.0.log when started as normal user:

Code:

[  2554.121] (==) Using config file: "/etc/X11/xorg.conf"
[  2554.136] (II) NVIDIA dlloader X Driver  260.19.21  Thu Nov  4
21:18:43 PDT 2010
[  2554.148] (**) NVIDIA(0): Option "TwinView" "0"
[  2554.148] (**) NVIDIA(0): Option "MetaModes" "1920x1080 +0+0"
[  2554.148] (**) NVIDIA(0): Option "TwinViewXineramaInfoOrder" "CRT-0"
[  2554.479] (II) NVIDIA(0): NVIDIA GPU GeForce 7050 PV / nForce 630a
(C68) at PCI:0:18:0
[  2554.480] (II) NVIDIA(0): Validated modes:
[  2554.480] (II) NVIDIA(0):     "1920x1080+0+0"
[  2554.480] (II) NVIDIA(0): Virtual screen size determined to be 1920 x 1080
[  2554.489] (II) NVIDIA(0): Setting mode "1920x1080+0+0"
[  2555.246] (II) NVIDIA(0): Setting mode "1280x960"

There is nothing relevant between the "setting 1920" line and the
"setting 1280" line.

Code:

# rpm -qva|grep nvid
nvidia-settings-1.0-8.fc14.x86_64
kmod-nvidia-260.19.21-1.fc14.1.x86_64
xorg-x11-drv-nvidia-260.19.21-1.fc14.x86_64
xorg-x11-drv-nvidia-libs-260.19.21-1.fc14.x86_64
nvidia-xconfig-1.0-5.fc14.x86_64
kmod-nvidia-2.6.35.9-64.fc14.x86_64-260.19.21-1.fc14.1.x86_64

This output as root while startx run as regular user:

Code:

# xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 240, current 1280 x 960, maximum 1920 x 1080
default connected 1280x960+0+0 0mm x 0mm
  1920x1080      50.0
  1680x1050      51.0
  1440x900       52.0
  1400x1050      53.0     54.0
  1280x1024      55.0     56.0
  1280x960       57.0*
  1280x800       58.0
  1152x864       59.0
  1024x768       60.0     61.0     62.0
  832x624        63.0
  800x600        64.0     65.0     66.0     67.0     68.0     69.0
  640x512        70.0     71.0
  640x480        72.0     73.0     74.0     75.0     76.0     77.0
  576x432        78.0
  512x384        79.0     80.0     81.0
  416x312        82.0
  400x300        83.0     84.0     85.0     86.0
  320x240        87.0     88.0     89.0

Relevant sections of xorg.conf:

Code:

Section "ServerFlags"
    Option         "AIGLX" "on"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 7050 PV / nForce 630a"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "1920x1080 +0+0"
    SubSection     "Display"
        Depth       24
        Modes      "1920x1080"
    EndSubSection
EndSection

Section "Extensions"
    Option         "Composite" "Enable"
EndSection

Ideas greatly appreciated.
Thanks,
Alex

stress_junkie · 12-23-2010, 12:59 PM

In general when some function works as root and it fails for other user accounts then it is due to security. In this case it could be incorrect file permissions. I would check the file permissions on /etc/X11/xorg.conf to see that everyone can read it. If that is not the problem then it may be incorrect permissions on another file required to make the driver work at full resolution.