Nvidia settings doesn't save monitor config

[Jesus Ignacio Madrid Laguna]

I have Ubuntu 12.04 fully updated some days ago.

I cannot save my monitor config resolution. By default it is started with 1280x1024 but my monitor support on WIndows 1920x1200.

When I run the program from terminal I can see this errors:

$ nvidia-settings
Traceback (most recent call last):
  File "/usr/share/screen-resolution-extra/nvidia-polkit.py", line 75, in <module>
    operation_status = main(options)
  File "/usr/share/screen-resolution-extra/nvidia-polkit.py", line 51, in main
    exit_code = conf.backupAndWriteXorgConf([options.backup_filename, options.filename])
  File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 70, in __call__
    return self._proxy_method(*args, **keywords)
  File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: com.ubuntu.screenresolution.Mechanism.AccessDeniedException: com.ubuntu.screenresolution.mechanism.configure

ERROR: Unable to open X config file '/etc/X11/xorg.conf' for writing.

This error is triggered just when press the button "Save to X Configuration File". I check the file permissions for the file xorg.conf

 ls -ialh /etc/X11/xorg.conf
525956 -rw-r--r-- 1 root root 1,6K jun 13 22:31 /etc/X11/xorg.conf

If I start the nvidia-settings as root user, my file xorg.conf is fully updated. So probably the error is because the program doesn't detect the user privilegies.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: nvidia-settings 295.33-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic-pae 3.2.16
Uname: Linux 3.2.0-24-generic-pae i686
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Es un directorio: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86 Kernel Module 295.40 Thu Apr 5 21:28:09 PDT 2012
 GCC version: gcc versión 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
.tmp.unity.support.test.0:

ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Wed Jun 13 22:35:02 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 nvidia-current, 295.40, 3.2.0-23-generic-pae, i686: installed
 nvidia-current, 295.40, 3.2.0-24-generic-pae, i686: installed
GraphicsCard:
 NVIDIA Corporation GF110 [GeForce GTX 560 Ti] [10de:1200] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:838b]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
JockeyStatus:
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
MachineType: System manufacturer System Product Name
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic-pae root=UUID=c96b297f-f844-4a32-81e1-ad9865efe31a ro quiet splash vt.handoff=7
SourcePackage: nvidia-settings
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/23/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1226
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5B-Deluxe
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1226:bd11/23/2007:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5B-Deluxe:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.7.8-0ubuntu1
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3.1
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Paul Pilgrim (sq2d3bipy0t2ouq-paul)]

I can confirm the same behaviour on my laptop.
I changed the permissions to /etc/X11/xorg.conf (sudo chmod 666 /etc/X11/xorg.conf) and tried again but still not able to save the setting changes.
I WAS able to save the changes when starting nvidia settings as root (sudo nvidia-settings).

This looks like a bug affecting the GUI that prompts for you to enter your user password to elevate your priveleges to root - I just don't know what that program is to report a bug for it.....

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Paul Pilgrim (sq2d3bipy0t2ouq-paul)]

the latest updates today have fixed this issue (for me). Still not sure which of the 16 updated packes did it though....