Just tried the 6.8.0-40-generic kernel and it seems to be fixed (installed automatically via sudo apt upgrade).
Not sure if the other display-related issues are fixed though, such as the one mentioned here: https://bugs.launchpad.net/ubuntu/+source/linux- oem-6.5/+bug/2070096 We saw the above issue on 6.8.0-38-generic. I'll use 6.8.0-40-generic for a bit and see if anything else is broken. -- 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 : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
