Public bug reported: [Summary] 1. The system will hang on when the HDMI external monitor is connected. 2. The system will hang on after the HDMI external monitor is unplugged. 3. The system will show no display when the HDMI external monitor is unplugged, but the system not hangs on. a. if connect HDMI external monitor back, the system will hang on. b. if connect type-c HDMI external monitor, the system works well.
Note: 1. Only built-in HDMI can duplicate. 2. FHD/4K monitor both can duplicate [Steps to reproduce] 2. Boot to OS 3. Connect external montior on HDMI port. [Expected result] The system can work well when the external monitor is connected. [Actual result] The system hangs on with the HDMI external monitor. [Failure rate] 2/3 ** Affects: hwe-next Importance: Undecided Status: New ** Affects: linux-firmware (Ubuntu) Importance: Undecided Status: New ** Affects: linux-firmware (Ubuntu Focal) Importance: Undecided Status: New ** Affects: linux-firmware (Ubuntu Impish) Importance: Undecided Status: New ** Affects: linux-firmware (Ubuntu Jammy) Importance: Undecided Status: New ** Tags: oem-priority originate-from-1968546 originate-from-1969726 stella ** Tags added: oem-priority originate-from-1968546 stella ** Tags added: originate-from-1969726 ** Also affects: linux-firmware (Ubuntu Impish) Importance: Undecided Status: New ** Also affects: linux-firmware (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: linux-firmware (Ubuntu Focal) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1970293 Title: The system hangs when HDMI external monitor involved on AMD Yellow Carp platforms Status in HWE Next: New Status in linux-firmware package in Ubuntu: New Status in linux-firmware source package in Focal: New Status in linux-firmware source package in Impish: New Status in linux-firmware source package in Jammy: New Bug description: [Summary] 1. The system will hang on when the HDMI external monitor is connected. 2. The system will hang on after the HDMI external monitor is unplugged. 3. The system will show no display when the HDMI external monitor is unplugged, but the system not hangs on. a. if connect HDMI external monitor back, the system will hang on. b. if connect type-c HDMI external monitor, the system works well. Note: 1. Only built-in HDMI can duplicate. 2. FHD/4K monitor both can duplicate [Steps to reproduce] 2. Boot to OS 3. Connect external montior on HDMI port. [Expected result] The system can work well when the external monitor is connected. [Actual result] The system hangs on with the HDMI external monitor. [Failure rate] 2/3 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1970293/+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