Trying to solve #874694 (only getting 640x480 maximum resolution instead
of 1024x768), I see also an Amilo L6820 with Intel 82845G/GL/GE Chipset.
This blocks my attempts to force the screen resolution at xrandr level.
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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.
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