desktop-packages team mailing list archive

[Povrch jazýka <axcelboya@xxxxxxxx>]

For the record, and for anyone who might be googling:

I just ran across the same problem on Debian Wheezy Netinst running on a
KVM virtual machine. The issue was that KVM's default emulated video
hardware is Cirrus, which is very old and limited in functionality. I
changed it on virt-manager to QXL (VM configuration, "Video" item,
choose "QXL" on the drop-down list), installed the QXL X driver, and now
I can use any resolution I want.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to x11-utils in Ubuntu.
https://bugs.launchpad.net/bugs/1078695

Title:
  xrandr : Failed to get size of gamma for output default

Status in x11-utils package in Ubuntu:
  Confirmed

Bug description:
  I have been tracking in the Ubuntu & Linux Mint forums when people have problems with the resolution of their screens not being able to be set to the native resolution of their displays.  Normally, that can be fixed by either xrandr or xorg.conf settings, but occasionally when xrandr is typed on a line by itself to check the configuration of the X display, the return is [code]$ xrandr
  xrandr : failed to get size of gamma for output default
  Screen 0: blah blah
  default :  more blah blah[/code]When this has occurred, the output maximum resolution can NOT be changed, and I haven't found any way to fix the problem.

  [background] My particular rig is a custom built with a BIOStar N68S3B
  motherboard, AMD Athlon II x3 processor, 8G RAM, nVidia GeForce 7025
  display adapter on the motherboard, Etronix 1701B display.  I have
  fought getting my maximum resolution (1280x1024) on this monitor since
  7.10 Gutsy Gibbon, and used a custom xorg.conf file until it stopped
  working, around 9.10, and have used xrandr since.  (I stopped using
  Ubuntu as my primary OS of choice when Unity came out, because my rig
  did not support Compiz or graphics acceleration.  Xubuntu, Linux Mint
  Debian Edition, or Debian are my primaries now.) The EDID on this
  monitor is not read correctly/has never been read correctly, and I
  have always been stuck with the default resolution on Live media,
  except occasionally on Puppy or Elive, through two different main
  machines.  My first Linux install was on an eMachines T5212 with an
  nVidia GeForce 6200 128M graphics memory, 2G RAM.[/Background]

  I noticed that on a Bodhi 2.0 Live media that the xrandr did not work
  because x11-xserver-utils package was not installed.  I was checking
  out the Live media, because my Bodhi 2.0 virtual machine exhibits the
  same problems reported by laptop users, that is, the Failed to get
  size of gamma for output default and unable to use xrandr to add a
  higher resolution display.  When I added the x11-xserver-utils package
  to the Live running install, I could use xrandr to properly get the
  size of gamma and reset the display to 1280x1024.  I re-installed from
  the SAME live media to my Bodhi VirtualBox VM, still the same graphics
  problem.  x11-xserver-utils was installed during updates, but xrandr
  still returned no gamma, display as 'default', and no ability to set
  resolution higher than 1024x768 detected at install.

  I still have about 2 weeks laid-off from my primary work, so if there
  is anything further I can do to help, just let me know.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/x11-utils/+bug/1078695/+subscriptions