*** This bug is a duplicate of bug 1821820 ***
https://bugs.launchpad.net/bugs/1821820
Here are the relevant portions of my dmesg with drm.debug=14 as a boot
paramater. You can see my laptops display panel is still failing link
training.
21:00:11 kernel: [drm:intel_dp_get_link_train_fallback_values [i915]] Retrying
Link training for eDP with same parameters
21:00:11 kernel: [drm:intel_dp_start_link_train [i915]] [CONNECTOR:85:eDP-1]
Link Training failed at link rate = 324000, lane count = 1
21:00:11 kernel: [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis
level 0
21:00:11 kernel: [drm:intel_dp_program_link_training_pattern [i915]] Using DP
training pattern TPS1
21:00:11 kernel: [drm:intel_dp_set_signal_levels [i915]] Using pre-emphasis
level 0
21:00:11 kernel: [drm:intel_dp_start_link_train [i915]] Using LINK_RATE_SET
value 04
** Attachment added: "dmesg with drm.debug=14"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+attachment/5255576/+files/log%20messages
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1824216
Title:
Linux 5.0 regression i915 module, black screen on boot for certain
laptop panels
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824216/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
