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I have a new configuration and I have several issues. It's an Optimus laptop with AMD iGPU and NVIDIA dGPU (NVIDIA GeForce RTX 3070). I try to setup a dual boot system. So one of my main problems is that my Lenovo Legion 5 does not detects my monitor after I installed the latest NVIDIA v520 driver from the Ubuntu repo. Before the NVIDIA driver installation the system detected correctly both displays. The external is an LG 24GM79G-B and it's connected via HDMI. Same happens if I connect the monitor via USB-C with a converter or natively with a DP cable.

inxi-G shows:

$ inxi -G

Graphics:
  Device-1: NVIDIA GA104M [GeForce RTX 3070 Mobile / Max-Q] driver: nvidia
    v: 520.56.06
  Device-2: AMD Cezanne driver: amdgpu v: kernel
  Device-3: Chicony Integrated Camera type: USB driver: uvcvideo
  Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: amdgpu,ati
    unloaded: fbdev,modesetting,radeon,vesa gpu: amdgpu
    resolution: 1920x1080~165Hz
  OpenGL: renderer: AMD RENOIR (LLVM 13.0.1 DRM 3.42 5.15.0-52-generic)
    v: 4.6 Mesa 22.0.5

Windows 10 detects both displays.

UPDATE:

I just realised that there are now two NVIDIA driver branches(?)/versions available since v515. When I created my report I did not noticed this difference. I installed the open kernel version of v520 first. So recently my issue was related with that mostly. Meanwhile I installed the original closed version and with that the inputs working IF I set the GPU handling to on-demand or nvidia. With intel switch this driver also fails and there are no video signals on the outputs. So basically both driver versions affected but somehow the original is partially working at the moment.

UPDATE #2:

Things going wild after v525. The open kernel version does not send any signal. The closed version cause serious continuous lag on external display when the profile is set to on-demand. But when I set it to nvidia it works well. If this is the 21st century and the upcoming year is the year of Linux again then I should forget completely this platform.

ViBE
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  • What driver did you have before? Why did you change the driver if it was working? – David Oct 30 '22 at 11:36
  • As I said it's a new configuration and I try to setup it. It's a brand new machine. There was no NVIDIA driver installed before. This is the first time installation. – ViBE Oct 30 '22 at 13:20
  • Are you sure that the 520 driver is the correct one? – David Oct 30 '22 at 13:26
  • Absolutely sure. – ViBE Oct 30 '22 at 13:35
  • what does inxi -Gsay? And could you - just for a test - disable the amd GPU in your bios? And check if this problem applies – kanehekili Oct 30 '22 at 19:42
  • here's the output: https://pastebin.ubuntu.com/p/SgsSjD2fXS/ then disabled the iGPU. nothing changed. please clarify the third advice. – ViBE Oct 30 '22 at 22:23
  • You should paste that code into your question, not making a "screenshot". Your nvidia drivers have not been loaded: Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: amdgpu,ati unloaded: fbdev,modesetting,radeon,vesa gpu: amdgpu resolution: 1920x1080~165Hz I added the data into your question. – kanehekili Oct 30 '22 at 23:10
  • oh and how can i figure out what cause this issue? – ViBE Oct 31 '22 at 06:32

3 Answers3

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I had a similar problem today after I updated from NVIDIA 515 to NVIDIA 525. My third display, which is the only one connected to the iGPU, stopped working.

The solution for me was to go to /etc/X11 and execute

$ sudo rm xorg.conf

And reboot. Then the display connected to the iGPU started working again.

To choose the driver for your hardware I recommend executing in the terminal

$ ubuntu-drivers devices

And install the driver that has "recommended" near it.

Hope this helps.

Luciano
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I have Lenovo Legion too with GeForce RTX 2060 Mobile and I had the exact same problem. I first updated to nvidia-driver-525-open in the Software & Updates application on Ubuntu 22.04 under Additional Drivers.

What solved this issue of HDMI not being found is choosing the previous driver package NVIDIA driver metapackage from nvidia-driver-515 (proprietary). With this package, everything worked after restarting the machine.

Also I cannot use the xorg Video Nouveuau gestures for switching between workspaces (worked before as three finger swipe on touchpad), so I had to keybind that from `Super + PgDn/PgUp)...

Andrej Kružliak
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  • As it’s currently written, your answer is unclear. Please [edit] to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center. – Community Mar 22 '23 at 11:07
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Had the same issue with nvidia-driver-530-open not detecting any external displays on a Thinkpad X1 extreme (GeForce GTX 1650 Mobile).

VGA compatible controller [0300]: NVIDIA Corporation TU117M [GeForce GTX 1650 Mobile / Max-Q] [10de:1f91] (rev a1)
Subsystem: Lenovo TU117M [GeForce GTX 1650 Mobile / Max-Q] [17aa:229f]

Reverting the nvidia driver to the non-open variant of the same version, i.e. nvidia-driver-530 works for me. I assume there are some issues or lacking features in the open kernel driver variants that break external displays for now.

Byte Commander
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