Public bug reported: [Impact] Video output MUX switched from Intel GPU to Nvidia GPU after S3, so display settings are lost. [Fix] Always use Nvidia GPU to do the video output. This matches the behavior on the other OS.
[Test] Connect and external monitor, and change the scaling factor or resolution, suspend the laptop. After wakeup, the custom monitor setting is kept. [Where problems could occur] If nvidia.ko or nouveau.ko is blacklisted, the video output may stop working, as it's now routed away from i915 device. ** Affects: hwe-next Importance: Undecided Status: New ** Affects: linux (Ubuntu) Importance: Medium Status: Confirmed ** Affects: linux-oem-5.10 (Ubuntu) Importance: Undecided Status: Invalid ** Affects: linux-oem-5.13 (Ubuntu) Importance: Undecided Status: Invalid ** Affects: linux (Ubuntu Focal) Importance: Undecided Status: Won't Fix ** Affects: linux-oem-5.10 (Ubuntu Focal) Importance: Medium Status: Confirmed ** Affects: linux-oem-5.13 (Ubuntu Focal) Importance: Medium Status: Confirmed ** Affects: linux (Ubuntu Hirsute) Importance: Medium Status: Confirmed ** Affects: linux-oem-5.10 (Ubuntu Hirsute) Importance: Undecided Status: Invalid ** Affects: linux-oem-5.13 (Ubuntu Hirsute) Importance: Undecided Status: Invalid ** Affects: linux (Ubuntu Impish) Importance: Medium Status: Confirmed ** Affects: linux-oem-5.10 (Ubuntu Impish) Importance: Undecided Status: Invalid ** Affects: linux-oem-5.13 (Ubuntu Impish) Importance: Undecided Status: Invalid ** Tags: oem-priority originate-from-1909980 stella ** Also affects: linux-oem-5.10 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux-oem-5.13 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Impish) Importance: Undecided Status: New ** Also affects: linux-oem-5.10 (Ubuntu Impish) Importance: Undecided Status: New ** Also affects: linux-oem-5.13 (Ubuntu Impish) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux-oem-5.10 (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux-oem-5.13 (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Hirsute) Importance: Undecided Status: New ** Also affects: linux-oem-5.10 (Ubuntu Hirsute) Importance: Undecided Status: New ** Also affects: linux-oem-5.13 (Ubuntu Hirsute) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Focal) Status: New => Won't Fix ** Changed in: linux (Ubuntu Hirsute) Status: New => Confirmed ** Changed in: linux (Ubuntu Impish) Status: New => Confirmed ** Changed in: linux-oem-5.10 (Ubuntu Focal) Status: New => Confirmed ** Changed in: linux-oem-5.10 (Ubuntu Hirsute) Status: New => Invalid ** Tags added: oem-priority originate-from-1909980 stella ** Changed in: linux-oem-5.10 (Ubuntu Impish) Status: New => Invalid ** Changed in: linux-oem-5.13 (Ubuntu Focal) Importance: Undecided => Medium ** Changed in: linux-oem-5.13 (Ubuntu Focal) Status: New => Confirmed ** Changed in: linux-oem-5.13 (Ubuntu Hirsute) Status: New => Invalid ** Changed in: linux-oem-5.13 (Ubuntu Impish) Status: New => Invalid ** Changed in: linux (Ubuntu Hirsute) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Impish) Importance: Undecided => Medium ** Changed in: linux-oem-5.10 (Ubuntu Focal) Importance: Undecided => Medium -- 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/1936296 Title: Fix display output on HP hybrid GFX laptops Status in HWE Next: New Status in linux package in Ubuntu: Confirmed Status in linux-oem-5.10 package in Ubuntu: Invalid Status in linux-oem-5.13 package in Ubuntu: Invalid Status in linux source package in Focal: Won't Fix Status in linux-oem-5.10 source package in Focal: Confirmed Status in linux-oem-5.13 source package in Focal: Confirmed Status in linux source package in Hirsute: Confirmed Status in linux-oem-5.10 source package in Hirsute: Invalid Status in linux-oem-5.13 source package in Hirsute: Invalid Status in linux source package in Impish: Confirmed Status in linux-oem-5.10 source package in Impish: Invalid Status in linux-oem-5.13 source package in Impish: Invalid Bug description: [Impact] Video output MUX switched from Intel GPU to Nvidia GPU after S3, so display settings are lost. [Fix] Always use Nvidia GPU to do the video output. This matches the behavior on the other OS. [Test] Connect and external monitor, and change the scaling factor or resolution, suspend the laptop. After wakeup, the custom monitor setting is kept. [Where problems could occur] If nvidia.ko or nouveau.ko is blacklisted, the video output may stop working, as it's now routed away from i915 device. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1936296/+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