[Bug 90469] [BYT dsi] WARNING: CPU: 3 PID: 265 at drivers/gpu/drm/drm_irq.c:1130 drm_wait_one_vblank+0x177/0x180()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90469

--- Comment #13 from Christian Hartmann <cornogle at googlemail.com> ---
(In reply to Shobhit from comment #9)
> Yes. Looks like this device has newer sequence version which the current
> parser is not identifying. You can use intel-gpu-tools to dump the whole
> VBT. There is also a DSI sequence parser in igt which can dump the sequence
> block. Can you attach the two dumps.
> 
> Also can you try the patches which are currently under review in intel-gfx
> for version 3 sequence to see if it fixes the problem -
> http://lists.freedesktop.org/archives/intel-gfx/2015-July/072463.html

thanks for the info, I tried today (I am back at this device) to dump the VBT 
with 
$ intel_bios_dump vbt.dump
but all I got is: Couldn't read graphics card ROM: Input/output error
I am logged in via ssh, cause with the enabled drm I got locally o display yet.

What can I do to get the dump anyway??

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