[GTA02] VGA-QVGA switching - #2263 revisited
vlado at moko.ksp.sk
Tue Feb 16 16:45:04 CET 2010
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I'm trying to get VGA-QVGA switching/rotation to work - with mixed results..
Distro: recent SHR-t (using Xorg), xglamo-hack disabled during startup
Commands I intend to use (ie, VGA portrait and QVGA landscape):
xrandr -s 240x320 -o 3
xrandr -o 0 -s 480x640
I don't really care about specific kernel version - I just want it to run
'well' with SHR-t (this mode switching, suspend, maybe wifi; if I need to
hack some changed sysfs paths that's OK)
The best I can get is with default SHR-t kernel (which is andy-tracking);
however, in this case bug #2263 is present (after res. change the image
is shifted randomly on the screen, http://docs.openmoko.org/trac/ticket/2263)
I've tried a few more kernels:
simple rotation corrupts the display or WSOD
rotation in VGA works
QVGA is mostly white
#2263 is not present
QVGA/rotation not available (not via xrandr at least)
latest 'experimental' kernel from http://downloads.openmoko.org/distro/experimental
(as mentioned in #2263):
DRM -> no QVGA
Thus, I'd like to ask if anyone know:
- a solution that works?
- a git revision which is supposed to fix #2263?
- some background on #2263 so I can try to fix it in SHR kernel?
I'm also fine with DRM kerels if they can somehow switch the modes/orientations;
I didn't find a word how that should work, though.
Thanks & regards,
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