This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1978380
Title:
External monitor not detected
Status in linux package in Ubuntu:
Confirmed
Bug description:
Hello. I have a laptop Lenovo Legion Y540-15IRH (81SX00EVRA) with Hybrid
graphics.
OS: 20.04.4 LTS and Windows 10 in dual boot.
BIOS is set to Switchable Graphics, meaning Hybrid.
NVidia PRIME profile is set to Intel (power saving).
So the problem is that on Ubuntu system doesn't detect an external monitor
through HDMI port.
When PRIME profile was set to NVidia best Performance - it was able to detect
the external monitor.
But as I am not playing games anymore - I don't want to use power-consuming
and noisy discrete RTX 2060. So I switched to integrated Intel UHD Graphics
630. What should I do in order OS to detect an external monitor?
Thanks
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.13.0-48.54~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-48-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat Jun 11 14:41:50 2022
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
bcmwl, 6.30.223.271+bdcom, 5.13.0-44-generic, x86_64: installed
bcmwl, 6.30.223.271+bdcom, 5.13.0-48-generic, x86_64: installed
nvidia, 470.129.06, 5.13.0-44-generic, x86_64: installed
nvidia, 470.129.06, 5.13.0-48-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA
controller])
Subsystem: Lenovo UHD Graphics 630 (Mobile) [17aa:3ffd]
NVIDIA Corporation TU106M [GeForce RTX 2060 Mobile] [10de:1f11] (rev a1)
(prog-if 00 [VGA controller])
Subsystem: Lenovo TU106M [GeForce RTX 2060 Mobile] [17aa:3ffd]
InstallationDate: Installed on 2020-10-21 (597 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: LENOVO 81SX
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-48-generic
root=UUID=96af554d-dedb-4846-b7ca-651771269b4c ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/20/2022
dmi.bios.release: 1.44
dmi.bios.vendor: LENOVO
dmi.bios.version: BHCN44WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: NO DPK
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Legion Y540-15IRH
dmi.ec.firmware.release: 1.44
dmi.modalias:
dmi:bvnLENOVO:bvrBHCN44WW:bd01/20/2022:br1.44:efr1.44:svnLENOVO:pn81SX:pvrLegionY540-15IRH:rvnLENOVO:rnLNVNB161216:rvrNODPK:cvnLENOVO:ct10:cvrLegionY540-15IRH:skuLENOVO_MT_81SX_BU_idea_FM_LegionY540-15IRH:
dmi.product.family: Legion Y540-15IRH
dmi.product.name: 81SX
dmi.product.sku: LENOVO_MT_81SX_BU_idea_FM_Legion Y540-15IRH
dmi.product.version: Legion Y540-15IRH
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.107-8ubuntu1~20.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.6-0ubuntu0.1~20.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2
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 N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
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