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On fresh installation of Ubuntu 22.04.2 LTS with and without latest updates
there's no HDMI signal to external monitor. No display , no picture, no
detection at all.
The hardware is functional under Windows the HDMI port is working.
What I've managed to research is some problems with Intel 12th gen CPU GPUs
drivers where other user have similar problem. Some sources mention Wayland
protocol as part of the problem but cannot clarify how reliable that is. Tried
changing display protocols on login but it didn't help.
CPU i7-1255U , notebook: ASUS Expertbook B9400 CBA
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 5.19.0-46.47~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-46-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Jul 13 00:53:19 2023
DistUpgraded: Fresh install
DistroCodename: jammy
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation Device [8086:46a8] (rev 0c) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device [1043:1f02]
InstallationDate: Installed on 2023-07-12 (0 days ago)
InstallationMedia: Ubuntu 22.04.2 LTS "Jammy Jellyfish" - Release amd64
(20230223)
Lsusb:
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 8087:0033 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. ASUS EXPERTBOOK B9400CBA_B9400CBA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.19.0-46-generic
root=UUID=28808a14-059c-4b86-a687-ebd6d7ad1b12 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/26/2022
dmi.bios.release: 5.26
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: B9400CBA.214
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: B9400CBA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrB9400CBA.214:bd09/26/2022:br5.26:svnASUSTeKCOMPUTERINC.:pnASUSEXPERTBOOKB9400CBA_B9400CBA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnB9400CBA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:
dmi.product.family: ASUS EXPERTBOOK
dmi.product.name: ASUS EXPERTBOOK B9400CBA_B9400CBA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.113-2~ubuntu0.22.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.2.5-0ubuntu0.1~22.04.3
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1.7~22.04.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1
** Affects: mutter (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy ubuntu wayland-session
--
no signal to external monitor from HDMI port
https://bugs.launchpad.net/bugs/2027631
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