[Star Labs Lite IV] screen flashes on-off unless PSR is turned off
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
Laptop is a Starlabs Lite Mv IV
Integrated graphic card is Mesa Intel® UHD Graphics 605 (GLK 3)
Screen backlight turns off and on quickly from time to time
Seems to be random : can happen several times per minute, then nothing happens for a few minutes. Seems to happen more often if the graphic card load is increased. Might be related to the graphic card core temperature/
Fixed the problem by adding the following kernel option : i915.enable_psr=0
[ 3.868968] i915 0000:00:02.0: [drm] Unknown revid 0x06
[ 3.869555] i915 0000:00:02.0: [drm] VT-d active for gfx access
[ 3.869566] fb0: switching to i915 from EFI VGA
[ 3.869878] i915 0000:00:02.0: vgaarb: deactivate vga console
[ 3.921387] i915 0000:00:02.0: [drm] couldn't get memory information
[ 3.922325] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=
[ 3.923660] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/glk_
[ 4.222037] [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0 on minor 0
[ 4.222440] snd_hda_intel 0000:00:0e.0: bound 0000:00:02.0 (ops i915_audio_
[ 4.561945] fbcon: i915drmfb (fb0) is primary device
[ 4.593816] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device
[ 4954.090871] i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
Machine has latest firmware (CoreBoot)
And its Ubuntu is the latest LTS, kept up to date.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSign
Uname: Linux 5.15.0-30-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckR
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue May 24 19:38:39 2022
DistUpgraded: Fresh install
DistroCodename: jammy
DistroVariant: ubuntu
ExtraDebuggingI
GraphicsCard:
Intel Corporation GeminiLake [UHD Graphics 605] [8086:3184] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Intel Corporation GeminiLake [UHD Graphics 605] [8086:2212]
InstallationDate: Installed on 2022-04-26 (28 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:0aaa Intel Corp. Bluetooth 9460/9560 Jefferson Peak (JfP)
Bus 001 Device 003: ID 0c45:6365 Microdia USB 2.0 Camera
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Star Labs Lite
ProcKernelCmdLine: BOOT_IMAGE=
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/11/2022
dmi.bios.release: 4.16
dmi.bios.vendor: coreboot
dmi.bios.version: 4.16
dmi.board.name: Lite
dmi.board.vendor: Star Labs
dmi.board.version: 1.0
dmi.chassis.type: 9
dmi.chassis.vendor: Star Labs
dmi.chassis.
dmi.ec.
dmi.modalias: dmi:bvncoreboot
dmi.product.family: I4
dmi.product.name: Lite
dmi.product.sku: I4
dmi.product.
dmi.sys.vendor: Star Labs
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.110-1ubuntu1
version.
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summary: |
- screen flashes on-off unless PSR is turned off + [Star Labs Lite IV] screen flashes on-off unless PSR is turned off |
affects: | xorg (Ubuntu) → linux (Ubuntu) |
tags: | added: psr |
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