[Bug 94087] eDP panel exhibits sparse random noise and flickering (link issue), forcing DP DDI profile helps [Lenovo T450s]
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Fri Feb 12 08:42:58 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=94087
--- Comment #10 from Mika Kahola <mika.kahola at intel.com> ---
The meaning for those 8 bytes is that for all 16 panels (half a byte for each
panel)
0 = low voltage swing setting (200 mV)
1 = default voltage swing setting (400 mV)
In your case, you should use default voltage swing. Unfortunately, it seemed
that the driver uses only low voltage swing settings for broadwell.
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