Anyone knows if the latest OEM kernel updates have fixed this issue?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-6.5 in Ubuntu.
https://bugs.launchpad.net/bugs/2069357
Title:
Multimonitor support broken on kernel 6.5.0-1024.25_oem on Lenovo
Thunderbolt 3 Gen 2 USB-C dock
Status in linux-oem-6.5 package in Ubuntu:
Confirmed
Bug description:
Updating to 6.5.0-1024.25_oem from 6.5.0-1023.24_oem breaks HDMI video
on the Lenovo Thunderbolt 3 Gen 2 USB-C dock. I am using a Thinkpad
P16s with a Ryzen 7 PRO 7840U CPU and Ubuntu 22.04.4 LTS.
When using this new kernel version, all monitors plugged in via the
dock display nothing during boot and after logging in to Ubutnu. The
monitors are also not detected in the Settings->Displays section. I am
using 2 HDMI Dell monitors in addition to the built-in display on the
Laptop. The monitors show that they do not detect any input (as
opposed to receiving a blank/black input).
Manually booting to the old 6.5.0-1023.24_oem kernel in GRUB fixes the
issue.
It looks like there was a fix for HDMI/DP audio using USB-C docks in
the new 6.5.0-1024.25_oem kernel; Maybe the issue is there.
This was the changelog entry:
* Fix inaudible HDMI/DP audio on USB-C MST dock (LP: #2064689)
- SAUCE: drm/i915/audio: Fix audio time stamp programming for DP
And here is a link to that issue: https://launchpad.net/bugs/2064689
If there are any logs or additional details I can provide, I am happy
to help.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-oem-6.5/+bug/2069357/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
