I believe solution to this is simple: always switch to kernel-owned
console during suspend. (swsusp does it, there's patch for S3 to do
the same). That way, Xfree (or qtopia or whoever) should clean up
after themselves and leave the console to the kernel. (See
kernel/power/console.c)

I tried using it on pmac, but it causes hell with XFree. I'm not sure
what's up yet, I suspect it may be XFree still doing things after
calling the RELDISP ioctl but I'm not completely sure yet.

The setup XFree + DRI is working without switching to suspend console
(with only the apm_bios emulation for XFree to suspend/restore itself)
but not when switching to suspend console right before doing the apm
emulation callbacks (which should be ignored by X since it's no longer
the frontmost process at this point).

For some reason, it seems that after we have switched to the suspend
console, we race with the X server on accel engine, and on resume, the X
server just crashes.

Ben.
 


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