Public bug reported: [Impact] There is no output of external 4k DP monitor via USB-C to DP dongle.
[Fix] Isolate link training sequence, the external DP monitor will be good. [Test] Verified on hardware, external 4k monitor works fine after re-plugin and suspend. [Where problems could occur] It may break the display output on AMD GPU. This commit is from 5.18-rc1, and no issue on jammy kernel. SRU for oem-5.17 only. ** Affects: hwe-next Importance: Undecided Status: New ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Affects: linux-oem-5.17 (Ubuntu) Importance: Undecided Status: New ** Affects: linux (Ubuntu Jammy) Importance: Undecided Status: Invalid ** Affects: linux-oem-5.17 (Ubuntu Jammy) Importance: Undecided Status: New ** Tags: oem-priority originate-from-1981177 sutton ** Also affects: linux-oem-5.17 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: linux-oem-5.17 (Ubuntu Jammy) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Jammy) Status: New => Invalid ** Tags added: oem-priority originate-from-1981177 sutton -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1988721 Title: [SRU][OEM-5.17][PATCH 0/1] Fix output issue of USB-C to DP dongle on AMD Status in HWE Next: New Status in linux package in Ubuntu: New Status in linux-oem-5.17 package in Ubuntu: New Status in linux source package in Jammy: Invalid Status in linux-oem-5.17 source package in Jammy: New Bug description: [Impact] There is no output of external 4k DP monitor via USB-C to DP dongle. [Fix] Isolate link training sequence, the external DP monitor will be good. [Test] Verified on hardware, external 4k monitor works fine after re-plugin and suspend. [Where problems could occur] It may break the display output on AMD GPU. This commit is from 5.18-rc1, and no issue on jammy kernel. SRU for oem-5.17 only. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1988721/+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