after bisection:
6d7a793aabf31d7ba2b16fc13a94ccf0b90e4be0 is the first bad commit
commit 6d7a793aabf31d7ba2b16fc13a94ccf0b90e4be0
Author: José Roberto de Souza <jose.so...@intel.com>
Date: Fri May 14 16:22:45 2021 -0700
drm/i915/display: Allow fastsets when DP_SDP_VSC infoframe do not match
with PSR enabled
When PSR is enabled it handles DP_SDP_VSC, changing revision and all
the other fields as necessary.
It can also enabled and disable this SDP as needed without a full
modeset.
So here masking DP_SDP_VSC bit when previous and future state PSR
enabled, it will still be checked when comparing the asked state
to what was programmed to hardware.
Cc: Gwan-gyeong Mun <gwan-gyeong....@intel.com>
Cc: Radhakrishna Sripada <radhakrishna.srip...@intel.com>
Reported-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Fixes: 78b772e1a01f ("drm/i915/display: Fill PSR state during hardware
configuration read out")
Signed-off-by: José Roberto de Souza <jose.so...@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong....@intel.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/20210514232247.144542-2-jose.so...@intel.com
drivers/gpu/drm/i915/display/intel_display.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
** Attachment added: "bisect log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958620/+attachment/5573585/+files/bisect
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1958620
Title:
[Dell XPS 15 9575] Flickering white/black screen once KMS comes up
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958620/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
