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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Screen Flickering on Intel Card"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95010#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Screen Flickering on Intel Card"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95010">bug 95010</a>
from <span class="vcard"><a class="email" href="mailto:silpertan@gmail.com" title="Arthur <silpertan@gmail.com>"> <span class="fn">Arthur</span></a>
</span></b>
<pre>Confirming that this affects multiple users:
I also have a Dell XPS 13 (9350 model with Skylake). I previously upgraded to a
4.5 kernel from the arch linux testing repo and noticed the same flickering
mentioned by Carlo. I then downgraded back to 4.4.5 and the flickering went
away. Now that 4.5 is out of testing, I pulled it down in my latest update, and
the flickering has returned.
I do see the same message that Carlo mentions in dmesg output. It is the very
last message in my output (see below with a little more context). It seems to
be pretty consistent around that time at bootup regardless of how long I wait
to login (but I have no idea if it's relevant - just confirming that I also see
the message).
[ 3.393442] IPv6: ADDRCONF(NETDEV_UP): wlp58s0: link is not ready
[ 3.433790] IPv6: ADDRCONF(NETDEV_UP): wlp58s0: link is not ready
[ 3.557638] IPv6: ADDRCONF(NETDEV_UP): wlp58s0: link is not ready
[ 13.702477] IPv6: ADDRCONF(NETDEV_CHANGE): wlp58s0: link becomes ready
[ 22.293947] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe A FIFO underrun
Lastly, booting with the "i915.enable_rc6=0" option does make the flickering
stop.</pre>
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