** Changed in: hwe-next
Status: New => Fix Released
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1897501
Title:
HP Zbook Studio G7 boots into corrupted screen with PSR featured panel
Status in HWE Next:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-5.6 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Fix Committed
Status in linux-oem-5.6 source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Released
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
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