You have been subscribed to a public bug: # What happens (Steps to reproduce): 1. Install a clean version of Ubuntu onto a laptop: Hardware="https://www.dell.com/support/manuals/en-uk/precision-15-3541-laptop/precision_3541_setupspecs/video?guid=guid-0712681b-956e-4229-96a7-545baca605fc&lang=en-us"; VERSION="20.04.5 LTS (Focal Fossa)" nick@Precision-3541:~$ sudo lshw -C display [sudo] password for nick: *-display description: 3D controller product: GP107GLM [Quadro P620] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list rom configuration: driver=nvidia latency=0 resources: irq:168 memory:ec000000-ecffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:3000(size=128) memory:ed000000-ed07ffff *-display description: VGA compatible controller product: UHD Graphics 630 (Mobile) vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 00 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:166 memory:eb000000-ebffffff memory:80000000-8fffffff ioport:4000(size=64) memory:c0000-dffff
2. Connect a monitor and laptop with an HDMI cable 3. Result - The monitor should display "No Signal" - Ubuntu should recognize the monitor, but not display anything on it. # What should happen Ubuntu should send signal to external monitors connected to the HDMI port. It should automatically configure discrete graphics cards. The same hardware works when booted from the Windows partition. # What I've tried ## Things that worked https://askubuntu.com/questions/1105332/external-monitor-not-working-ubuntu-nvidia/1134579#1134579 Edit /lib/modprobe.d/nvidia-kms.conf to enable modsetting ## Things that worked temporarily Installing NVidia-Prime, Setting "Performance Mode" to always use the discrete GPU ## Things that did not work (from various forums) 1. Using multiple different drivers via "Software&Updates/Additional Drivers" 2. Using the driver from NVidia's website 3. Enabling NVidia via a modprob parameter at startup 4. Varius xorg configuration files ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.15.0-58.64~20.04.1-generic 5.15.74 Uname: Linux 5.15.0-58-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia .proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file. .proc.driver.nvidia.capabilities.mig: Error: path was not a regular file. .proc.driver.nvidia.gpus.0000.01.00.0: Error: path was not a regular file. .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.suspend: suspend hibernate resume .proc.driver.nvidia.suspend_depth: default modeset uvm .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 470.161.03 Wed Oct 19 00:10:36 UTC 2022 GCC version: gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1) ApportVersion: 2.20.11-0ubuntu27.25 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Jan 17 16:58:33 2023 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu DkmsStatus: nvidia, 470.161.03, 5.15.0-58-generic, x86_64: installed ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA controller]) Subsystem: Dell UHD Graphics 630 (Mobile) [1028:091a] Subsystem: Dell GP107GLM [Quadro P620] [1028:091a] InstallationDate: Installed on 2023-01-06 (11 days ago) InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819) MachineType: Dell Inc. Precision 3541 ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-58-generic root=UUID=90df9afc-2dd2-439d-a69c-3aa27146e9fc ro SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) XorgConf: dmi.bios.date: 09/13/2022 dmi.bios.release: 1.23 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.23.0 dmi.board.name: 0Y8H01 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.23.0:bd09/13/2022:br1.23:svnDellInc.:pnPrecision3541:pvr:rvnDellInc.:rn0Y8H01:rvrA00:cvnDellInc.:ct10:cvr:sku091A: dmi.product.family: Precision dmi.product.name: Precision 3541 dmi.product.sku: 091A dmi.sys.vendor: Dell Inc. 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.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.5 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 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal possible-manual-nvidia-install ubuntu -- Ubuntu laptop can't use external monitors https://bugs.launchpad.net/bugs/2003140 You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
