(In reply to jay from comment #50)
> On my end, the issue looks like a random "blanking" of the screen for 1/4 of
> a second, two or three times or so in a row. It can happen several times in
> a few minutes, but I've also seen it last 20 minutes between occurrences. On
> my end it looks nothing li
Created attachment 123104
bisect log for underrun FIFO Error
Bisect log for the i915 Underrun FIFO ERROR. Since no clear method is
known on how to excite the error, the bisect might be unfinished. All
bad commits did show the FIFO error AND also the Flicker. All good ones
did not within a reasonab
(In reply to tranceash from comment #38)
> looks like a power management issues dating 8 months back, Also happened on
> the broadwell systems https://bugs.freedesktop.org/show_bug.cgi?id=91393.
> This makes any linux system a pain to work because of this integrated gpu
> driver . Skylake has been
I could try to bisect https://git.launchpad.net/~ubuntu-kernel-
test/ubuntu/+source/linux/+git/mainline-crack ,which is the base for the
4.6.0-997-generic intel-drm-next. A quick search suggests a list of 4-5
possible commits.
Should this be done? Bisecting is very tedious.
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(In reply to thomas bonfort from comment #49)
> As another user confirms on
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613 , the
> flickering has disappeared on the latest drm-intel-next
I can confirm that the blank screen flickering is gone with
4.6.0-997-generic intel-drm-next.
(In reply to tranceash from comment #38)
> looks like a power management issues dating 8 months back, Also happened on
> the broadwell systems https://bugs.freedesktop.org/show_bug.cgi?id=91393.
> This makes any linux system a pain to work because of this integrated gpu
> driver . Skylake has been
I am currently bisecting the kernel again and one thing I realize is
that I can detect an error through dmesg and then set the commit to bad,
but after reviewing some kernels which I have marked as good, it turns
out these were bad too. This messed up my bisect and I have to start
over again.
Does
@ Richard Platt
Are you still without flicker? If so, what Kernel are you on? (uname -a)
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https://bugs.launchpad.net/bugs/1568599
Title:
Screen flickering with 16.04 on Del
(In reply to thomas bonfort from comment #27)
> Created attachment 122845 [details]
> dmesg with enable_dc=0 disable_power_well=0 , up to first flicker
Ive been following this bug for a while.
It seems to me that the bug does not occur while fullscreen video
playback, which includes fullscreen ch
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