User talk:RobertCNelson

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Revision as of 19:30, 11 May 2009 by RobertCNelson (Talk | contribs)

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Hi,

I installed gnome and added Driver "fbdev" to xorg.conf. How do I change the screen resolution. It is at only 800x640.

Mike Westfield

Setting Video Resolution

It first depends on what kernel version you are using.

You have to define it at boot time, thru u-boot, this would set 1280x720x16 for 2.6.29.

setenv bootargs 'console=ttyS2,115200n8 console=tty0 root=/dev/mmcblk0p2 rootwait rootfstype=ext3 ro omapfb.mode=dvi:1280x720MR-16@60'
saveenv

For 2.6.27/2.6.27:

video=omapfb:mode:1280x720@60

For 2.6.28:

omap-dss.def_disp=lcd omapfb.video_mode=1280x720MR-16@60 

For 2.6.29:

omapfb.mode=dvi:1280x720MR-16@60

Common Modes: (not every combination is supported)

800x600MR-16@60,
1280x720MR-16@60,
etc...

Main doc is here: http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap-2.6.git;a=blob;f=Documentation/fb/modedb.txt;h=ec4dee75a35450376ad13442ea926eaf76de76aa;hb=HEAD

--RobertCNelson 19:30, 11 May 2009 (UTC)