The first thing we need to do is check to see if this is a Xorg-specific bug. Please try logging out (or rebooting) and select 'Ubuntu on Wayland' on the login screen (button in the bottom right corner). After you do that, does this bug still occur?
** Summary changed: - [Braswell] HDMI not working properly + [Braswell] HDMI monitors don't work when powered off and on again ** Changed in: linux-hwe-5.8 (Ubuntu) Status: New => Incomplete ** Changed in: mutter (Ubuntu) Status: New => Incomplete ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-5.8 in Ubuntu. https://bugs.launchpad.net/bugs/1936769 Title: [Braswell] HDMI monitors don't work when powered off and on again Status in linux-hwe-5.8 package in Ubuntu: Incomplete Status in mutter package in Ubuntu: Incomplete Status in xorg-server package in Ubuntu: Incomplete Bug description: HP Pavillion desktop 2015 ufei date. Never turned off because boot takes too long. Screens (2) turned off system left on when not in use. Up to Ubuntu 19 and early versions of 20 both screens came back on. With latest update HDMI does not restart. If boot from power off both screens, HDMI and VGA are ok. Turn screens off and HDMI will not display. I note that Windows (horrible) has a switch that allows the HDMI to be controlled but Ubuntu did it automatically but won't now. Suspend has always killed the HDMI but there is not much difference in power consumption between on with suspend and on with screens off. Hope you can help, booting from full power off takes too long. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.8.0-59.66~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-59-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: Mon Jul 19 13:09:23 2021 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [8086:22b1] (rev 35) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [103c:821d] InstallationDate: Installed on 2020-11-05 (255 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) MachineType: HP 510-a112a ProcEnviron: LANGUAGE=en_AU:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_AU.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-59-generic root=UUID=45ef6758-d850-46bc-b01b-ff1d33b61a32 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/17/2018 dmi.bios.release: 5.11 dmi.bios.vendor: AMI dmi.bios.version: F.33 dmi.board.asset.tag: CNV7380P8W dmi.board.name: 821D dmi.board.vendor: HP dmi.board.version: 00 dmi.chassis.asset.tag: CNV7380P8W dmi.chassis.type: 3 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnAMI:bvrF.33:bd01/17/2018:br5.11:svnHP:pn510-a112a:pvr:rvnHP:rn821D:rvr00:cvnHP:ct3:cvr: dmi.product.family: 103C_53316J G=D dmi.product.name: 510-a112a dmi.product.sku: W2S68AA#ABG dmi.sys.vendor: HP version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.8/+bug/1936769/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp