[Bug 97918] [bdw regression 4.8] Severe graphics regression, rainbow glitching and flickering on Intel Broadwell 5500U integrated graphics

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97918

--- Comment #6 from Mark Spencer <n7u4722r35 at ynzlx.anonbox.net> ---
Ok, but if I read the patch correctly it doesn't remove anything, just add some
conditional and whitelist. If it's true then adding new hardware to it is
possible. Otherwise we're back to square one
https://bugs.freedesktop.org/show_bug.cgi?id=95176 .

BTW:  Isn't this comment about the same thing?

/*
         * FIXME On Dell XPS 13 9350 the OpRegion panel type (0) gives us
         * low vswing for eDP, whereas the VBT panel type (2) gives us normal
         * vswing instead. Low vswing results in some display flickers, so
         * let's simply ignore the OpRegion panel type on SKL for now.
         */
        if (IS_SKYLAKE(dev)) {
                DRM_DEBUG_KMS("Ignoring OpRegion panel type (%d)\n", ret - 1);
                return -ENODEV;
        }

        return ret - 1;
}

Maybe this could fix flickering for broadwell as well

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20160929/8bda16bc/attachment.html>