I figured it out this far: The problem is independent of X. If you stop the Xserver and do
# echo "qvga-normal" > /sys/bus/spi/devices/spi2.0/state
# fbset 240x320
with /etc/fb.modes as follows
mode "240x320"
geometry 240 320 240 320 16
timings 100000 8 88 2 2 8 2
endmode
then there is a high probability that the screen will fade to WSOD. This
is on latest shr-unstable.
If I flash this kernel [1] from September, keeping the rootfs at latest
shr-unstable, the problem does not occur.
You can then start X and have 240x320 resolution, suspend works without
problems. Just there are still some horizontal stripe like from bad
timings. What could be the right timings?
I have so far encounter no problems from using the older kernel.
[1]
http://buildhost.shr-project.org/shr-obsolete/images/om-gta02/uImage-2.6.29-oe11+gitr119844+a3587e4ed77974adfb057af261aaeea4022018e8-r3.5-om-gta02.bin
pgp4BhiKbvEpK.pgp
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