This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.6 in Ubuntu. https://bugs.launchpad.net/bugs/1897501 Title: HP Zbook Studio G7 boots into corrupted screen with PSR featured panel Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-5.6 package in Ubuntu: Invalid Status in linux source package in Focal: In Progress Status in linux-oem-5.6 source package in Focal: Fix Committed Status in linux source package in Groovy: In Progress Status in linux-oem-5.6 source package in Groovy: Invalid Bug description: Sreen divided into half after installing Focal 5.4.0-48-generic under Power Saving/Hybrid Graphics Mode. Normal as switched to Discrete Graphics Mode. Screenshot attached as https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1897501/+attachment/5414860/+files/20200928_135412.jpg . With some more investigatin, https://git.launchpad.net/~ubuntu- kernel/ubuntu/+source/linux/+git/focal/commit/?id=d246a6cfe782 ("UBUNTU: SAUCE: drm/i915: Disable PSR by default on all platforms") for bug 1849947 is the root cause. This was landed to all Ubuntu kernels and Ubuntu only for kernel versions 5.0 and up till v5.9 unstable currently. It seems this panel must have PSR enabled. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-48-generic 5.4.0-48.52 ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60 Uname: Linux 5.4.0-48-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.9 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gdm 964 F.... pulseaudio CasperMD5CheckResult: skip Date: Mon Sep 28 01:50:54 2020 InstallationDate: Installed on 2020-09-22 (5 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200218) MachineType: HP HP ZBook Studio G7 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic root=UUID=ac48cfe8-5fa7-410c-ad1b-53d1e2683841 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.4.0-48-generic N/A linux-backports-modules-5.4.0-48-generic N/A linux-firmware 1.187.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/18/2020 dmi.bios.vendor: HP dmi.bios.version: S91 Ver. 85.28.01 dmi.board.name: 8736 dmi.board.vendor: HP dmi.board.version: KBC Version 14.32.03 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrS91Ver.85.28.01:bd09/18/2020:svnHP:pnHPZBookStudioG7:pvr:rvnHP:rn8736:rvrKBCVersion14.32.03:cvnHP:ct10:cvr: dmi.product.family: 103C_5336AN HP ZBook dmi.product.name: HP ZBook Studio G7 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1897501/+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
