SRU: https://lists.ubuntu.com/archives/kernel- team/2022-October/133747.html (jammy, oem-5.14)
** Tags added: amd oem-priority originate-from-1989581 ** Description changed: + [SRU Justification] + + [Impact] + + AMD Yellow Carp system hang on HDMI plug in/out over dock station. + + [Fix] + + 5 patches from mainline kernel v5.16 to be backported. + + [Test Case] + + Plug and unplug HDMI cable connected external monitor on a docking + station connected to HP Lockheed platform to try trigger system hang. + + [Where problems could occur] + + This series tries to address null state of MST link encoder, and no know + fix commits for them ever since till current mainline HEAD. + + [Other Info] + + While this is already available in v5.16 kernel and on, only 5.15 and + oem-5.14 are nominated for fix. + + ========== original bug description ========== + In order to resolve system hang during docking scenario with HDMI plug in/out, these patches are needed into hwe-5.15. v5.16 43dc2ad5 drm/amd/display: Fix MST link encoder availability check e3ab29aa drm/amd/display: Fix for link encoder access for MST 7fb52632 drm/amd/display: FEC configuration for dpia links ed0ffb5d drm/amd/display: FEC configuration for dpia links in MST mode c9beecc5 drm/amd/display: Add work around for tunneled MST -- 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/1991974 Title: AMD Yellow Carp system hang on HDMI plug in/out over HP hook2 docking Status in HWE Next: New Status in linux package in Ubuntu: Fix Released Status in linux source package in Jammy: In Progress Status in linux source package in Kinetic: Fix Released Bug description: [SRU Justification] [Impact] AMD Yellow Carp system hang on HDMI plug in/out over dock station. [Fix] 5 patches from mainline kernel v5.16 to be backported. [Test Case] Plug and unplug HDMI cable connected external monitor on a docking station connected to HP Lockheed platform to try trigger system hang. [Where problems could occur] This series tries to address null state of MST link encoder, and no know fix commits for them ever since till current mainline HEAD. [Other Info] While this is already available in v5.16 kernel and on, only 5.15 and oem-5.14 are nominated for fix. ========== original bug description ========== In order to resolve system hang during docking scenario with HDMI plug in/out, these patches are needed into hwe-5.15. v5.16 43dc2ad5 drm/amd/display: Fix MST link encoder availability check e3ab29aa drm/amd/display: Fix for link encoder access for MST 7fb52632 drm/amd/display: FEC configuration for dpia links ed0ffb5d drm/amd/display: FEC configuration for dpia links in MST mode c9beecc5 drm/amd/display: Add work around for tunneled MST To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1991974/+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