[Bug 106223] UDH 620: Number of DP lane is not consistently probed

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Apr 25 06:18:17 UTC 2018


https://bugs.freedesktop.org/show_bug.cgi?id=106223

--- Comment #10 from Jani Nikula <jani.nikula at intel.com> ---
For some reason the link training sometimes fails at the higher link bandwidth,
and, as expected, the link is downgraded to ensure we get something other than
a black screen. While I'm sure the degraded resolution is very annoying, it's
surely more desirable than a black screen.

Needs further analysis of the link training failure.

Side note, you seem to be missing the DMC firmware, available from the
linux-firmware repository. Probably unrelated to the problem at hand, but,
well, you never know.

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