[Bug 95010] Screen Flickering on Intel Card

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95010

Paulo Zanoni <przanoni at gmail.com> changed:

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                 CC|                            |przanoni at gmail.com

--- Comment #30 from Paulo Zanoni <przanoni at gmail.com> ---
(In reply to Carlo Abelli from comment #9)
> As reported in the initial bug report I stated that enable_rc6 does resolve
> my issue, but I believe it to be a temporary fix for some. I believe it is
> temporary as Francisco Lopes mentioned that this helps his primary display
> but is not a fix for a secondary display. I'm not sure about enable_rc5, but
> if it works for some it might also be a valid temporary fix.

Hello Carlo. Is the problem fixed for you, specifically, without the use of
i915.enable_rc6?

A note to everybody: we are aware of multiple problems that end up in "FIFO
underrun" messages on Skylake. The problem is that bugs get really hard to
manage when there are multiple users with multiple machines claiming they all
have the same bug, then some users claiming that the bug got fixed for them,
some other users claiming the bug still happens. It's much easier for us
developers to close duplicates than to "fork" multiple bugs in a single report.

So my proposal here is: if Carlo confirms the bug is indeed fixed for him, we
close this bug report and ask everybody else to submit new bug reports with the
relevant information for their specific systems.

Also, for everybody else still affected, please test the latest
drm-intel-nightly tree since we recently merged some more fixes related to this
(these fixes are going to land in stable Kernels at some point, but it's better
if you can test now and report any remaining issues).

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