http://bugzilla.opensuse.org/show_bug.cgi?id=1193599
http://bugzilla.opensuse.org/show_bug.cgi?id=1193599#c7
--- Comment #7 from Takashi Iwai
Possible upstream bug report: https://gitlab.freedesktop.org/drm/intel/-/issues/4458 (In reply to Patrik Jakobsson from comment #3) One person claims a similar problem disappeared between v5.14.6 and v5.15.7.
As far as I checked, both of the above are about Thinkpad P15 Gen 1, and it's also with Cometlake-H. So this could be a problem with that chip.
Possible fixes are: 9af4bf2171c1 drm/i915/dp: return proper DPRX link training result c8dead5751b8 drm/i915/dp: Use max params for panels < eDP 1.4
Both were backported to the 15.4 kernel in mid/late September.
Right, those should have been already covered. -- You are receiving this mail because: You are the assignee for the bug.