Screen goes blank after "EDID checksum is invalid" errors
Hi there,
not sure if this is the right newsgroup, but it's worth a shot.
I've just installed Jessie i586 on an Intel Atom board. The board has
has DVI output which is connected to a monitor.
When booting, I can perfectly see the image during grub2 and also during
early printk. Then comes the handoff to userspace (/bin/init), it
executes some stuff (much too fast for me to see) and then I see some of
these messages (they're copied from another problem report, but look
exactly like this):
[ 2.123456] [drm:drm_edid_block_valid] *ERROR* EDID checksum is
invalid, remainder is 43
[ 2.123456] Raw EDID:
[ 2.123456] ∘00 ff ff ff ff ff ff 00 4c 5b ff ff ff ff ff ff
[ 2.123456] ∘ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 2.123456] ∘ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 2.123456] ∘ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 2.123456] ∘ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 2.123456] ∘ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 2.123456] ∘ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 2.123456] ∘ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
This message comes about 3-4 times within 500ms (all guessed values, it
all runs very fast), then the screen goes dark.
My guess is that it's trying to do some font switching or frame buffer
stuff, can't read what the monitor has to offer and switches to a weird
setting. The system is alive (can ssh into it), but I'd like console
output as well.
So I've tried adding "nomodeset", "nofb" and "vga=normal" to my kernel
cmdline, changed grub to GRUB_TERMINAL=console. The problem remains.
Can anyone's crystal ball reveal some clues on what's going on here and
how I could fix that?
Thanks for your help,
Cheers,
Johannes
--
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