You have been subscribed to a public bug:
In every 6/10 boot my ubuntu failed to start stuck on blank screen.
Sometime touchpad stop working and unable to change my brightness after
installation at first all feature are perfectly fine except screen
glitch.Screen performance is laggy.
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: xorg 1:7.7+22ubuntu1
ProcVersionSignature: Ubuntu 5.11.0-25.27-generic 5.11.22
Uname: Linux 5.11.0-25-generic x86_64
ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 21 17:13:28 2021
DistUpgraded: Fresh install
DistroCodename: hirsute
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Iris Plus Graphics G7 [8086:8a52] (rev 07) (prog-if 00 [VGA
controller])
Subsystem: Lenovo Iris Plus Graphics G7 [17aa:3a34]
Subsystem: Lenovo GP107M [GeForce MX350] [17aa:3a34]
InstallationDate: Installed on 2021-07-21 (0 days ago)
InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
MachineType: LENOVO 82A1
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-25-generic
root=UUID=178639d7-12e5-45ac-a728-0643b1c58d44 ro quiet splash nomodeset
vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/14/2021
dmi.bios.release: 1.31
dmi.bios.vendor: LENOVO
dmi.bios.version: DHCN31WW
dmi.board.asset.tag: ���������������
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0Q55722 WIN
dmi.chassis.asset.tag: ���������������
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Yoga Slim 7 14IIL05
dmi.ec.firmware.release: 1.29
dmi.modalias:
dmi:bvnLENOVO:bvrDHCN31WW:bd01/14/2021:br1.31:efr1.29:svnLENOVO:pn82A1:pvrYogaSlim714IIL05:rvnLENOVO:rnLNVNB161216:rvrSDK0Q55722WIN:cvnLENOVO:ct10:cvrYogaSlim714IIL05:
dmi.product.family: Yoga Slim 7 14IIL05
dmi.product.name: 82A1
dmi.product.sku: LENOVO_MT_82A1_BU_idea_FM_Yoga Slim 7 14IIL05
dmi.product.version: Yoga Slim 7 14IIL05
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.105-3~21.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.1-2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.11-1ubuntu1.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200714-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-1
** Affects: mutter (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: amd64 apport-bug hirsute hybrid i915 nouveau ubuntu
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Screen tearing and display glitches
https://bugs.launchpad.net/bugs/1937072
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