Public bug reported:
I am using Ubuntu 20.04.3 LTS on my HP Spectre X360 with Intel Skylake
GT2 [HD Graphics 520] and I am having flickering graphics.
The problem sometimes happens showing grey flickering boxes 5-6 times in
a minute, and sometimes it does not happen for 2-3 minutes. Overall, it
annoys me quite a lot.
I have tried decreasing the refresh rate from 60Hz to lower options, but
that didn't work. Updating the drivers or purging Intel graphics didn't
work either. I also tried a couple of stuff I saw online regarding
/etc/X11/xorg.conf.d/.
I do not have this issue on Windows, therefore it must be Ubuntu-
related.
When I set nomodeset on GRUB and update it, flickering disappears, but
at the cost of my brightness adjuster and Night Light.
As for package I have:
apt-cache policy pkgname
N: Unable to locate package pkgname
dpkg -l |grep xserver-xorg-core
ii xserver-xorg-core 2:1.20.11-1ubuntu1~20.04.2 amd64 Xorg X server - core
server
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.11.0-36.40~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-36-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.20
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Sep 28 11:55:47 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07) (prog-if
00 [VGA controller])
Subsystem: Hewlett-Packard Company Skylake GT2 [HD Graphics 520] [103c:804e]
InstallationDate: Installed on 2021-09-22 (5 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
MachineType: HP HP Spectre x360 Convertible
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-36-generic
root=UUID=c68313b0-c9ba-4714-abc0-dff5762a92b2 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
XorgConf:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TearFree" "true"
EndSection
dmi.bios.date: 12/27/2019
dmi.bios.release: 15.54
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F.54
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 804E
dmi.board.vendor: HP
dmi.board.version: 33.24
dmi.chassis.type: 31
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 33.24
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrF.54:bd12/27/2019:br15.54:efr33.24:svnHP:pnHPSpectrex360Convertible:pvr:skuN7H72EA#AB8:rvnHP:rn804E:rvr33.24:cvnHP:ct31:cvrChassisVersion:
dmi.product.family: 103C_5335KV G=N L=CON B=HP S=SPT
dmi.product.name: HP Spectre x360 Convertible
dmi.product.sku: N7H72EA#AB8
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.107-1028
version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3~20.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx 21.0.3-0ubuntu0.3~20.04.2
version.xserver-xorg-core: xserver-xorg-core 2:1.20.11-1ubuntu1~20.04.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
** Affects: ubuntu
Importance: Undecided
Status: Incomplete
** Tags: amd64 apport-bug focal third-party-packages ubuntu
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https://bugs.launchpad.net/bugs/1945309
Title:
Screen flickering on Ubuntu 20.04 - HP Spectre X360 with Intel Skylake
GT2 [HD Graphics 520]
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