Ubuntu 19.04 doesn't detect my HDMI display

how i can remove it ?

See:
https://askubuntu.com/questions/19486/how-do-i-add-a-kernel-boot-parameter

the display is working now, but how i can be assure that the gpu is working ?nvidia-bug-report.log (1.9 MB)

Log looks good. Running
glxinfo |grep vendor
should return “Nvidia Corporation”

Thank you soo much, but this what i get when i run the command above

glxinfo |grep vendor
sudo: glxinfo: command not found

sudo apt install mesa-utils
installs glxinfo
glxinfo should be run as normal user, not as root using sudo.

I’m having the same issue! can you please help? it wont detect my hdmi or my display port.nvidia-bug-report.log (1.5 MB)

Please try this:

  • switch to nvidia (sudo prime-select nvidia)
  • remove stray blacklist files (sudo rm /lib/modprobe.d/blacklist-nvidia.conf /etc/modprobe.d/blacklist-nvidia.conf)
  • update the initrd (sudo update-initramfs -u)
  • reboot
    If this doesn’t resolve the issue, please create a new nvidia-bug-report.log.

@generix, I have been using the new setup for a couple of weeks, and overall it has been working fine.

Only one minor thing that I would like to fix, curious if you know there is a solution. when I suspend the machine and wake it up again (or leave the screen idle for over 10 min), 95% of the cases it loses the original display topology (i.e. using HDMI-1/DP-1 with external displays), I see this error in the log:

[264903.629788] [drm:mod_hdcp_add_display_topology [amdgpu]] *ERROR* Failed to add display topology, DTM TA is not initialized.

one of my displays connects to the laptop via the HDMI cable, which, based on your previous comment, was passed through the amd gpu.

my default display setting is to use the HDMI-1 and DP-1 for external displays

xrandr --output eDP-1-1 --off --output HDMI-1-1 --mode 1920x1080 --pos 1920x0 --rotate normal --output DP-1 --off --output DP-0 --mode 1920x1080 --pos 0x0 --rotate normal

and I have set this command to run in my session autostart list. If the display topology is lost, I ran the above command, it restores my setting, but I have to run this every time.

do you know if there is a fix? thanks again

I guess the DTM TA message is harmless, unrelated.
I suspect this is rather because of Gnome’s monitor manager which you’re working against by using xrandr to change the monitor layout so it resets it on resume. Rather use the gnome control center to set the correct layout.

Excuse me. Can unplugging Ge-force fan and adding another that takes power from pc power supply be harmfull? (I don’t care about temperature and similar it isn’t oaded with anything harder than full hd on youtube).

02:00.0 VGA compatible controller: NVIDIA Corporation G84 [GeForce 8600 GT] (rev a1)

How can it change anything related to radio emission (that help to intercept signal from videocard/cable/monitor)? (somewhat TEMPEST related topic but not sure)

If the fan doesn’t have enough airflow, the gpu might overheat and die.
The only influence it has on radio emission would be if you take a very bad fan with high emission so it camouflages anything around it. This would possibly lead to other failures, though (e.g. not getting any picture at all).

Hi, first of all sorry if I am in the wrong topic since I am using POP OS 20.04 which is based on Ubuntu 20.04.

Here is my output for nvidia-bug-report.sh.

Thank you very much, I’ve been dealing with this issue for weeks.

NOTE:
If you guys know where the specific topic for Ubuntu 20.04, it is very welcome for me to move there. Since this topic is on the first of google page, so I chose to post it here.

EDIT:
Sorry it looks like no attachment feature is pop up when I hovering into this post, could anyone help? Thank you.

For now, this is the link for the google drive for the logs. (https://drive.google.com/file/d/1__IviY4HVdGfkp6sexwXzcxOqKJzQh1b/view?usp=sharing)
I am sorry to bring you inconvenience.

No, I mean: is it possible that default fan’s coil plays some role other than for spinning fan?

@rf.ramadhana might be that you’re running into a known bug with the nvidia driver where the gpu thinks it has no outputs, 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

@somestupidpersonla8 like with any software-controllable device, the fans can be misused by malware to “morse-out” data.

Hi, thanks for responding.
However, I’ve tried that, but it looks like my HDMI is still not detected.

$ grep nvidia /etc/modprobe.d/* /lib/modprobe.d/*
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist nvidiafb
/etc/modprobe.d/system76-power.conf:blacklist i2c_nvidia_gpu
/etc/modprobe.d/system76-power.conf:alias i2c_nvidia_gpu off
/lib/modprobe.d/nvidia-graphics-drivers.conf:options nvidia-drm modeset=0

I am currently using 440.82,

$ nvidia-smi
Sat Jun 27 09:01:47 2020
±----------------------------------------------------------------------------+
| NVIDIA-SMI 440.82 Driver Version: 440.82 CUDA Version: 10.2 |
|-------------------------------±---------------------±---------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce MX230 Off | 00000000:01:00.0 Off | N/A |
| N/A 58C P3 N/A / N/A | 335MiB / 2002MiB | 0% Default |
±------------------------------±---------------------±---------------------+

±----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 1169 G /usr/lib/xorg/Xorg 45MiB |
| 0 1704 G /usr/lib/xorg/Xorg 99MiB |
| 0 1924 G /usr/bin/gnome-shell 90MiB |
| 0 2481 G …AAAAAAAAAAAACAAAAAAAAAA= --shared-files 92MiB |
±----------------------------------------------------------------------------+

Idk if it would help, but here my xrandr output, it looks like the HDMI is not there ya?

$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
1920x1080 60.02*+ 60.01 59.97 59.96 59.93
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1440x900 59.89
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1360x768 59.80 59.96
1280x800 59.99 59.97 59.81 59.91
1152x864 60.00
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
800x512 60.17
700x525 59.98
800x450 59.95 59.82
640x512 60.02
720x450 59.89
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
680x384 59.80 59.96
640x400 59.88 59.98
576x432 60.06
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
DP-1-1 disconnected (normal left inverted right x axis y axis)

Please let me know if you need another information/ logs.
Thank you.

Anyway, here is my newly generated nvidia-bug-report logs.
(https://drive.google.com/file/d/1pQFtu6YtTa3sB7GZey0ChYWZr6-zk3_X/view?usp=sharing)

Hello,
i have a Dell Vostro 5490 and it doesn’t detect my HDMI display.

$ grep nvidia /etc/modprobe.d/* /lib/modprobe.d/*
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist nvidiafb
/lib/modprobe.d/nvidia-kms.conf:# This file was generated by nvidia-prime
/lib/modprobe.d/nvidia-kms.conf:options nvidia-drm modeset=0

nvidia-smi
$ nvidia-smi
Mon Jul 20 16:47:54 2020
±----------------------------------------------------------------------------+
| NVIDIA-SMI 440.100 Driver Version: 440.100 CUDA Version: 10.2 |
|-------------------------------±---------------------±---------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce MX250 Off | 00000000:01:00.0 Off | N/A |
| N/A 56C P0 N/A / N/A | 186MiB / 2002MiB | 5% Default |
±------------------------------±---------------------±---------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0       944      G   /usr/lib/xorg/Xorg                            82MiB |
|    0      1628      G   /usr/bin/gnome-shell                         103MiB |
+-----------------------------------------------------------------------------+

xrandr
$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
1920x1080 60.05*+ 60.01 59.97 59.96 59.93 48.04
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1440x900 59.89
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1360x768 59.80 59.96
1280x800 59.99 59.97 59.81 59.91
1152x864 60.00
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
800x512 60.17
700x525 59.98
800x450 59.95 59.82
640x512 60.02
720x450 59.89
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
680x384 59.80 59.96
640x400 59.88 59.98
576x432 60.06
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
HDMI-1-1 disconnected (normal left inverted right x axis y axis)
DP-1-1 disconnected (normal left inverted right x axis y axis)
HDMI-1-2 disconnected (normal left inverted right x axis y axis)

I attach my nvidia-bug-report:

Thanks in advance!

My VGA-0 port (3th monitors) is not detect…
Before updating its was working, ,

$ ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
modalias : pci:v000010DEd00001056sv00001028sd00001493bc03sc00i00
vendor : NVIDIA Corporation
model : GF119M [NVS 4200M]
manual_install: True
driver : nvidia-340 - distro non-free
driver : nvidia-driver-390 - distro non-free recommended
driver : xserver-xorg-video-nouveau - distro free builtin

xrandr -q
Screen 0: minimum 8 x 8, current 5120 x 1440, maximum 16384 x 16384
VGA-0 disconnected (normal left inverted right x axis y axis)
LVDS-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-2 connected 2560x1440+2560+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+
DP-3 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+
ez@ez-Latitude-E6420:~$

nvidia-bug-report.log.gz (166.8 KB)

Hello,

I’m having the same problem of HDMI output not detected - I’ve had this happen a few times, all when my computer shuts down improperly while connected to HDMI.

  • Ubuntu 19.10
  • GeForce MX250
  • nvidia-driver-440
  • prime-select query = nvidia
  • secure boot is disabled
  • in /lib/modprobe.d/nvidia-kms.conf, options nvidia-drm modeset=0

In the past I think I solved this by reverting to the Nouveau driver then back to the NVIDIA, but that doesnt seem to work this time.

UPDATE I have a dual boot with Windows 10, and booting into windows and back into linux seems to have fixed it somehow! Not sure what the original problem was but the monitor is now working fine.

nvidia-bug-report.log.gz (226.3 KB)