Public bug reported:
I just installed ubuntu 23.10 on my thinkpad L13. It works fine on my
laptop monitor. But when I connect an HDMI cable to my other monitor,
then the screen flickers on the laptop and nothing shows on the other
monitor
I know it can't be the problem with the other monitor as I bought it
brand new last week, and the cable works fine on this same laptop when I
run in windows, and it works fine on other laptops with windows/mac
I already installed the driver with `sudo apt install nvidia-driver-535
nvidia-dkms-535` and rebooted, but that didn't help. I then installed
driver 550 and I still have the flickering
This laptop uses an intel Alder Lake-UP3 GT2
I also tried editing `etc/default/grub` by adding 'nomodeset' or
'radeon.modeset=0' within the quotation marks in the line
GRUB_CMDLINE_LINUX_DEFAULT but that didn't help either
can anyone help?
ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.5.0-27.28-generic 6.5.13
Uname: Linux 6.5.0-27-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 18 23:17:21 2024
DistUpgraded: Fresh install
DistroCodename: mantic
DistroVariant: ubuntu
DkmsStatus: nvidia/550.54.14, 6.5.0-27-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Alder Lake-UP3 GT2 [Iris Xe Graphics] [8086:46a8] (rev 0c)
(prog-if 00 [VGA controller])
Subsystem: Lenovo Alder Lake-UP3 GT2 [Iris Xe Graphics] [17aa:50a6]
InstallationDate: Installed on 2024-04-13 (6 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']}
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-27-generic
root=UUID=bc80dc13-87d7-4310-bd10-43d45de6d3a7 ro quiet splash radeon.modeset=0
vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/23/2024
dmi.bios.release: 1.23
dmi.bios.vendor: LENOVO
dmi.bios.version: R1UET46W (1.23 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21B4S4QB00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76465 WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.14
dmi.modalias:
dmi:bvnLENOVO:bvrR1UET46W(1.23):bd02/23/2024:br1.23:efr1.14:svnLENOVO:pn21B4S4QB00:pvrThinkPadL13Gen3:rvnLENOVO:rn21B4S4QB00:rvrSDK0T76465WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21B4_BU_Think_FM_ThinkPadL13Gen3:
dmi.product.family: ThinkPad L13 Gen 3
dmi.product.name: 21B4S4QB00
dmi.product.sku: LENOVO_MT_21B4_BU_Think_FM_ThinkPad L13 Gen 3
dmi.product.version: ThinkPad L13 Gen 3
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.120+git2404140851.1179ed~oibaf~m
version.libgl1-mesa-dri: libgl1-mesa-dri 24.1~git2404150600.4a1904~oibaf~m
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.7-3ubuntu2.9
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3
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: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug mantic third-party-packages ubuntu wayland-session
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https://bugs.launchpad.net/bugs/2062504
Title:
Flickering problems on external monitor with HDMI after installing
Ubuntu 23.10
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