While we don't have access to the specific sku of Dell 7390 in bug
1849947, and PSR has been disabled since all 5.0 Ubuntu kernels and up,
and the platform team has planned to bring up official support to PSR in
5.10 or so, a quirk for this platform is suggested for kernels in Focal
and up until we have PSR finally.
** Description changed:
- TBD.
+ 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. 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:
- USERPID ACCESS COMMAND
- /dev/snd/controlC0: gdm 964 F pulseaudio
+ USERPID 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-firmware1.187.3
+ linux-restricted-modules-5.4.0-48-generic N/A
+ linux-backports-modules-5.4.0-48-generic N/A
+ linux-firmware1.187.3
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
** Summary changed:
- HP Zbook boot into corrupted screen with PSR featured panel
+ HP Zbook Studio G7 boots into corrupted screen with PSR featured panel
** Description changed:
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. It seems this panel must have PSR enabled.
+ 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:
USERPID 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-firmware1.187.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/18/2020
dmi.bios.vendor: HP