00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Gen Core
Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA
controller])
Subsystem: Lenovo 4th Gen Core Processor Integrated Graphics Controller
[17aa:3978]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 34
Region 0: Memory at b0000000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at a0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 4000 [size=64]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee00018 Data: 0000
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a4] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: i915
Kernel modules: i915
** Attachment added: "lspci output"
https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.11/+bug/1943370/+attachment/5524705/+files/lspci-vvnn.log
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-signed-hwe-5.11 in Ubuntu.
https://bugs.launchpad.net/bugs/1943370
Title:
i915 screen flicker
Status in linux-signed-hwe-5.11 package in Ubuntu:
New
Bug description:
The screen flicker started while booting into kernel image 5.8.0-63
and seems to happen on all the newer images. Image 5.8.0-55 doesn't
flicker, and this is what is currently used.
Bug #1939296 is similar, but the GPU hang is not in my dmesg output
and versions before 5.8.0-55 all seem to work for me.
The kernel code is big and I'm fairly new to it, but I did a git
revert on c6f8062265d1529c3ce4cc18b9dc59fb73bcca0f, but had trouble
trying to compile.
https://kernel.ubuntu.com/git/ubuntu/ubuntu-
focal.git/commit/?h=hwe-5.8&id=c6f8062265d1529c3ce4cc18b9dc59fb73bcca0f
$ lsb_release -rd
Description: Ubuntu 20.04.3 LTS
Release: 20.04
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.11.0-34-generic 5.11.0-34.36~20.04.1
ProcVersionSignature: Ubuntu 5.11.0-34.36~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-34-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 12 08:09:25 2021
InstallationDate: Installed on 2020-07-03 (436 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: linux-signed-hwe-5.11
UpgradeStatus: No upgrade log present (probably fresh install)
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