[PATCH 0/1 V2][SRU][OEM-5.6] UBUNTU: SAUCE: drm/i915/dp_mst - wait longer during the clock recovery for DisplayPort
Koba Ko
koba.ko at canonical.com
Wed Nov 11 07:11:32 UTC 2020
BugLink: https://bugs.launchpad.net/bugs/1902861
[Impact]
For some TGL platform, connect with the external monitor on the docking station(SC),
after cold/warm boot, the external monitor can't output the video and need to hotplug the docking station.
[Fix]
On the link-training phase, Wait longer during the clock recovery.
[test]
With the patch, The TGL-machine connect with the external monitor on docking station(SC) and
can output the video to the external monitor on docking station after cold/warm boot.
[Regression Potential]
Medium, it may not the root cause
V2: rebase and fix the "git am" failure.
Koba Ko (1):
UBUNTU: SAUCE: drm/i915/dp_mst: wait longer during the clock recovery
drivers/gpu/drm/drm_dp_helper.c | 18 ++++++++++++++++++
.../drm/i915/display/intel_dp_link_training.c | 12 +++++++++++-
include/drm/drm_dp_helper.h | 1 +
3 files changed, 30 insertions(+), 1 deletion(-)
--
2.17.1
More information about the kernel-team
mailing list