Thanks but unfortunately that's still missing any evidence of what has
hung. Please remember step 1 in comment #4 which is "Wait 10 seconds"
before rebooting. It may also help to use this to reboot:
Alt + PrtScn + {R,E,I,S,U,B}
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Packages, which is subscribed to linux-hwe-5.11 in Ubuntu.
https://bugs.launchpad.net/bugs/1941030
Title:
[Fujitsu Lifebook U7411] Screen Flickers
Status in linux-hwe-5.11 package in Ubuntu:
Incomplete
Bug description:
After the laptop goes to sleep mode, it starts to flicker when i try
to use the laptop.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.11.0-27.29~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Aug 25 10:10:33 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Device [8086:9a49] (rev 01) (prog-if 00 [VGA controller])
Subsystem: Fujitsu Client Computing Limited Device [1e26:0050]
InstallationDate: Installed on 2021-08-18 (6 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
MachineType: FUJITSU CLIENT COMPUTING LIMITED LIFEBOOK U7411
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-27-generic
root=UUID=2ef2e3af-1c99-45d0-8bdf-5c9bd7e07ab9 ro quiet splash pcie_aspm=off
vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/28/2021
dmi.bios.release: 2.21
dmi.bios.vendor: FUJITSU CLIENT COMPUTING LIMITED
dmi.bios.version: Version 2.21
dmi.board.name: FJNB2E7
dmi.board.vendor: FUJITSU CLIENT COMPUTING LIMITED
dmi.board.version: A3
dmi.chassis.type: 10
dmi.chassis.vendor: FUJITSU CLIENT COMPUTING LIMITED
dmi.modalias:
dmi:bvnFUJITSUCLIENTCOMPUTINGLIMITED:bvrVersion2.21:bd06/28/2021:br2.21:svnFUJITSUCLIENTCOMPUTINGLIMITED:pnLIFEBOOKU7411:pvr:rvnFUJITSUCLIENTCOMPUTINGLIMITED:rnFJNB2E7:rvrA3:cvnFUJITSUCLIENTCOMPUTINGLIMITED:ct10:cvr:
dmi.product.family: LIFEBOOK-FPCA
dmi.product.name: LIFEBOOK U7411
dmi.product.sku: SK01
dmi.sys.vendor: FUJITSU CLIENT COMPUTING LIMITED
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.105-3~20.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3~20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 21.0.3-0ubuntu0.3~20.04.1
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
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