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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [BYT] Blank screen on DSI display after drm loads on Teclast X80h tablet"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93799#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [BYT] Blank screen on DSI display after drm loads on Teclast X80h tablet"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93799">bug 93799</a>
from <span class="vcard"><a class="email" href="mailto:laszlo.fiat@gmail.com" title="Laszlo Fiat <laszlo.fiat@gmail.com>"> <span class="fn">Laszlo Fiat</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=121245" name="attach_121245" title="dmesg of kernel compiled from drm-intel-nightly, built-in display doesn't work">attachment 121245</a> <a href="attachment.cgi?id=121245&action=edit" title="dmesg of kernel compiled from drm-intel-nightly, built-in display doesn't work">[details]</a></span>
dmesg of kernel compiled from drm-intel-nightly, built-in display doesn't work
I have compiled from intel-nightly-branch as instructed. The built-in display
goes blank after drm loads. There is a WARNING in dmesg in all kernels, where
the display goes blank, this one is from the dmesg of intel-nightly-branch:
[ 6.664456] WARNING: CPU: 3 PID: 58 at drivers/gpu/drm/drm_irq.c:1271
drm_wait_one_vblank+0x13b/0x180 [drm]()
[ 6.664457] vblank wait timed out on crtc 0
The full dmesg is attached.
Please note that I have a kernel version (linux-next-20151012) where the screen
works correctly, you can find the dmesg as the first attachment for this bug,
if you wish to compare it.</pre>
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