Hi to all,
I installed ubuntu 15.10 as guest O.S. on virutalbox.
I have a problem with the screen resolution, I want set a resolution of 1024x768 but the max resolution that ubuntu return me is 800x600.
I tried to increase the max resolution to 1024x768 using the "XRANDR" command, but this command not work properly.
If I run the command I get the following error (xrandr: Failed to get size of gamma for output default):
If I run the command for increase the screen resolution I get always the same error: xrandr: Failed to get size of gamma for output default
Googling on the internet I not found any solution for this problem that work properly for me.
Please, can any one help me to resolve this problem?
Thanks in advance!
I installed ubuntu 15.10 as guest O.S. on virutalbox.
I have a problem with the screen resolution, I want set a resolution of 1024x768 but the max resolution that ubuntu return me is 800x600.
I tried to increase the max resolution to 1024x768 using the "XRANDR" command, but this command not work properly.
If I run the command I get the following error (xrandr: Failed to get size of gamma for output default):
Code:
user@Ubuntu:~$ xrandr --q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 800 x 600, maximum 800 x 600
default connected primary 800x600+0+0 0mm x 0mm
800x600 61.00
640x480 60.00Googling on the internet I not found any solution for this problem that work properly for me.
Please, can any one help me to resolve this problem?
Thanks in advance!