AnsweredAssumed Answered

Setting the screen resolution in Ubuntu

Question asked by Andrew Ellis on Mar 13, 2013
Latest reply on Apr 26, 2013 by Guillermo Michel Jimenez
Branched to a new discussion



I have installed ubuntu onto my SabreSD evaluation board. In the command line parameters I specify that the monitor I'm using is 1280x1024, but when Ubuntu boots the screen is stuck at 640x480, there's nothing I can do to change it. The settings program does not allow me to change the resolution, I've tried using xrandr -addmode mxcfb0 1280x1024 and used hdmi instead of mxcfb0 but had no success, I just got a message saying it could not find the output specified.


The command line I specify in the uboot environment is 


setenv bootargs_mmc setenv bootargs ${bootargs} root=/dev/mmcblk0p1 rootwait rw video=mxcfb0:dev=hdmi,1280x1024M@60,if=RGB24 video=mxcfb1:off video=mxcfb2:off fbmem=28M ip=dhcp


I have used the monitor on another system at 1280x1024 so I know it should work.

What do I need to do to change the screen resolution in ubuntu?

Incidently I have the same issue when running Android as supplied with the kit.

Kind regards