GF108GLM [Quadro 1000M] Ubuntu 20.04.3, wayland Nvidia 390.144, not able to use second monitor

Graphics / Linux Linux
1

Hi there,
I’m unable to use my second monitor in Ubuntu 20.04.3
This is what I have :

Any advice on how to fix this
Thanks

2

There’s no second monitor detected, where did you connect it to, any converters involved?

3

Fast forward a couple of hours later
I removed all nvidia related stuff and reinstalled the driver via

sudo apt install nvidia-driver-390

switch to X11 instead of wayland
and finally installed lightdm still no second monitor

rerun bug tool
this is the output

Yo-nvidia-bug-report_01.log (120.2 KB)

4

I still don’ know how you connected your monitor and it’s still not detected.
You could try this:
https://devtalk.nvidia.com/default/topic/1066683/linux/ubuntu-18-04-3-blank-screen-at-startup-with-430-drivers-and-gtx-960/post/5402308/#5402308

5

Wow, well I’m trying over the VGA input ( odd if I try to use noveou Drivers it works but it freezes plus a sound loop randomly )

My next step was going to try and
update the BIOS and try with the Official drivers which is 390.147 instead of 144

I’ll post my results
thanks

6

That’s why I asked…
Please modify
/usr/share/X11/xorg.conf.d/11-nvidia-prime.conf
commenting/removing the line
Option “IgnoreDisplayDevices” “CRT”
This disables the VGA port on nvidia gpus as a workaround for notebooks with broken bioses.

7

I did that but it the file keeps getting generated again by the gpu-manager

8

Please try creating a file /usr/share/X11/xorg.conf.d/99-nvidia-crt.conf

Section "OutputClass"
    Identifier "nvidia-crt"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    Option "IgnoreDisplayDevices" "none"
EndSection

Maybe this will overwrite the setting due to file ordering.
Otherwise, you’d have to use “nogpumanager” kernel parameter to disable the gpu-manager to keep it from overwriting the file.

9

Well That did it.!!!
should I try switching back to wayland?
I also updated my BIOS but still get on my dmesg this

DMAR: [Firmware Bug]: No firmware reserved region can cover this RMRR [0x00000000bb800000-0x00000000bf9fffff], contact BIOS vendor for fixes 
DMAR: [Firmware Bug]: Your BIOS is broken; bad RMRR [0x00000000bb800000-0x00000000bf9fffff]
 BIOS vendor: LENOVO; Ver: 8BET66WW (1.46 ); Product Version: ThinkPad W520

Anyways second monitor is up and running!!!
Thanks a lot!!!
Yo-nvidia-bug-report_03.log (166.5 KB)

10

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