[SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

m33b0 · 2017-02-27 04:43:09

Hello everyone, and thank you for taking the time to help me. When I delete /etc/X11/xorg.conf then Xorg starts normally. But if I run nvidia-xconfig and it creates a /etc/X11/xorg.conf file then Xorg won't boot and I get this log file instead. So do I really need the file1 /etc/X11/xorg.conf at all?

[  9768.914] (--) controlling tty is VT number 1, auto-enabling KeepTty
[  9768.915] (II) systemd-logind: took control of session /org/freedesktop/login1/session/c3
[  9768.916] (II) xfree86: Adding drm device (/dev/dri/card0)
[  9768.916] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 11 paused 0
[  9768.916] (II) xfree86: Adding drm device (/dev/dri/card1)
[  9768.916] (II) systemd-logind: got fd for /dev/dri/card1 226:1 fd 12 paused 0
[  9768.917] (**) OutputClass "nvidia" ModulePath extended to "/usr/lib/nvidia/xorg,/usr/lib/xorg/modules"
[  9768.917] (--) PCI:*(0:0:2:0) 8086:0a16:17aa:3800 rev 11, Mem @ 0xb5000000/4194304, 0xc0000000/268435456, I/O @ 0x00006000/64, BIOS @ 0x????????/131072
[  9768.917] (--) PCI: (0:9:0:0) 10de:1290:17aa:3800 rev 161, Mem @ 0xb3000000/16777216, 0xa0000000/268435456, 0xb0000000/33554432, I/O @ 0x00003000/128
[  9768.917] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[  9768.917] (II) LoadModule: "glx"
[  9768.918] (II) Loading /usr/lib/nvidia/xorg/libglx.so
[  9768.921] (II) Module glx: vendor="NVIDIA Corporation"
[  9768.921]    compiled for 4.0.2, module version = 1.0.0
[  9768.921]    Module class: X.Org Server Extension
[  9768.921] (II) NVIDIA GLX Module  378.13  Tue Feb  7 18:25:34 PST 2017
[  9768.921] (II) LoadModule: "nvidia"
[  9768.921] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[  9768.921] (II) Module nvidia: vendor="NVIDIA Corporation"
[  9768.921]    compiled for 4.0.2, module version = 1.0.0
[  9768.921]    Module class: X.Org Video Driver
[  9768.921] (II) NVIDIA dlloader X Driver  378.13  Tue Feb  7 18:01:51 PST 2017
[  9768.921] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[  9768.921] (II) systemd-logind: releasing fd for 226:1
[  9768.922] (EE) No devices detected.
[  9768.922] (EE) 
Fatal server error:
[  9768.922] (EE) no screens found(EE) 
[  9768.922] (EE) 
Please consult the The X.Org Foundation support 
         at http://wiki.x.org
 for help. 
[  9768.922] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[  9768.922] (EE) 
[  9768.941] (EE) Server terminated with error (1). Closing log file.

When I start Xorg with "startx" and everyting works fine like it normally does without the xorg.conf file, then how do I know that Nvidia drivers are actually loaded? This is what "lsmod" returned:

[root@archlinux ~]# lsmod | grep nvidia
nvidia_drm             49152  0
nvidia_modeset        794624  1 nvidia_drm
nvidia              12197888  1 nvidia_modeset
drm_kms_helper        126976  2 i915,nvidia_drm
drm                   294912  6 i915,nvidia_drm,drm_kms_helper

Just for reference glxgears returns this also when I don't have a xorg.conf file:

[root@archlinux ~]# glxgears
Xlib:  extension "GLX" missing on display ":0.0".
Error: couldn't get an RGB, Double-buffered visual

Thanks for any help anyone is willing to provide!!!

Last edited by m33b0 (2017-02-27 18:41:11)

circleface · 2017-02-27 04:49:50

Generally speaking, no, you do not need an xorg.conf. xorg is pretty good about autodetecting hardware and setting everything up, so unless you have a very unique system it should just work. Not sure about the glx because I do not use nvidia.

m33b0 · 2017-02-27 04:56:15

circleface wrote:

Generally speaking, no, you do not need an xorg.conf. xorg is pretty good about autodetecting hardware and setting everything up, so unless you have a very unique system it should just work. Not sure about the glx because I do not use nvidia.

Thanks, looking for someone who uses Nvidia because I know Xorg works fine without it. Just wondering if the xorg.conf file which Nvidia created is actually necessary or not because of the errors it's giving.

jasonwryan · 2017-02-27 05:36:43

nvidia-xconfig is horrible, as you have learned.

m33b0 · 2017-02-27 06:44:09

jasonwryan wrote:

nvidia-xconfig is horrible, as you have learned.

Indeed it is. So how do I go about detecting which "device" and "screen" or display or whatever is in use so I can edit the xorg.conf file accordingly to use those instead?

jasonwryan · 2017-02-27 06:56:37

Your xorg log will contain most of the information.

The real question is why you want to create a conf file if it is working fine without one? What problem are you trying to solve?

V1del · 2017-02-27 07:40:36

You have an Optimus system. If you don't want to use the intel card to save power and only use the nvidia card exclusively read: https://wiki.archlinux.org/index.php/NVIDIA_Optimus

If you intend to use the intel card for power saving purposes and only use the Nvidia card for specific applications read: https://wiki.archlinux.org/index.php/Bumblebee

m33b0 · 2017-02-27 18:40:04

V1del wrote:

You have an Optimus system. If you don't want to use the intel card to save power and only use the nvidia card exclusively read: https://wiki.archlinux.org/index.php/NVIDIA_Optimus

Thank you for my solution! Now I can "startx" and gives the same output as before I had an xorg.conf file created by "nvidia-xconfig", which means it starts perfectly normal and without errors! Thanks for pointing me to the right direction. I've been struggling with this for 2 days now. All I had to do was add

/etc/X11/xorg.conf

Section "Module"
    Load "modesetting"
EndSection

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    BusID "(BusID for NVIDIA device here)"
    Option "AllowEmptyInitialConfiguration"
EndSection

And then I just added these 2 xrandr lines at the top of my ~/.xinitrc file:

~/.xinitrc

xrandr --setprovideroutputsource modesetting NVIDIA-0
xrandr --auto

I did a reboot just to make sure everything loaded properly, and now everything starts perfectly normal when I "startx" finally! Even "glxinfo" and "glxgears" are actually giving me output!
Here is glxinfo:

[root@archlinux ~]# glxinfo | grep "direct rendering"
direct rendering: Yes

And here is glxgears:

[root@archlinux ~]# glxgears
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
35210 frames in 5.0 seconds = 7042.000 FPS
39185 frames in 5.0 seconds = 7836.938 FPS
39428 frames in 5.0 seconds = 7885.523 FPS
39127 frames in 5.0 seconds = 7825.384 FPS
39462 frames in 5.0 seconds = 7892.290 FPS

Thanks for the help!!!

lordheavy · 2017-02-27 19:15:12

with nvidia-utils-378.13-5 currently in testing your xorg.conf file should be useless, see https://git.archlinux.org/svntogit/pack … idia-utils

m33b0 · 2017-03-01 01:24:21

lordheavy wrote:

with nvidia-utils-378.13-5 currently in testing your xorg.conf file should be useless, see https://git.archlinux.org/svntogit/pack … idia-utils

The /etc/X11/xorg.conf created by the Nvidia util "xorg-xconfig" was absolutely useless. All it did was allow me to not start X because of the errors shown in the log in the OP. But when I deleted the xorg.conf file created by "nvidia-xconfig" and wrote my own xorg.conf file like so:

/etc/X11/xorg.conf

Section "Module"
    Load "modesetting"
EndSection

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    BusID "(BusID for NVIDIA device here)"
    Option "AllowEmptyInitialConfiguration"
EndSection

And then also added 2 lines to my ~/.xinitrc file like so:

~/.xinitrc

xrandr --setprovideroutputsource modesetting NVIDIA-0
xrandr --auto

Now everything works flawlessly with loading Nvidia drivers and also with their performance. Actually better than I had 1 year ago when I had Nvidia working previously before I broke things (use error).

barresoft · 2022-05-11 02:09:32

hi everyone!!

i registered only for this post !!!

my simple & nooby solution:

mv /etc/X11/xorg.conf /etc/X11/xorg.conf.org
init 6

DONE !!!

Slithery · 2022-05-11 02:28:19

Please pay attention to the age of the posts you are replying to.

You've just answered a solved post with information that it already contains.

https://wiki.archlinux.org/title/Genera … bumping%22
https://wiki.archlinux.org/title/Genera … mpty_posts

Closing...

Arch Linux

#1 2017-02-27 04:43:09

[SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#2 2017-02-27 04:49:50

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#3 2017-02-27 04:56:15

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#4 2017-02-27 05:36:43

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#5 2017-02-27 06:44:09

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#6 2017-02-27 06:56:37

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#7 2017-02-27 07:40:36

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#8 2017-02-27 18:40:04

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#9 2017-02-27 19:15:12

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#10 2017-03-01 01:24:21

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#11 2022-05-11 02:09:32

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

#12 2022-05-11 02:28:19

Re: [SOLVED] Xorg.conf (EE) No devices detected (EE) no screens found (EE)

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