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Quentincestino

Member

Registered: 2020-12-26

Posts: 32

[SOLVED] Xorg inverted my monitor's names !

Hello,
Since a bit of time I have problems with Xorg. When I login I launch it and I set up my screens using xrandr. The command is this one:

xrandr --output HDMI-0 --left-of DVI-D-0

But since a few days it didn't do anything. I didn't understand until I tried a little modification. I executed this:

xrandr --output DVI-D-0 --right-of HDMI-0

And it worked...
I don't know from where this behavior comes from, I certainly made a mistake. The xrandr -q output is kinda weird tho:

Screen 0: minimum 8 x 8, current 3200 x 1080, maximum 32767 x 32767
DVI-D-0 connected primary 1280x1024+1920+0 (normal left inverted right x axis y axis) 376mm x 301mm
   1280x1024     60.02*+  75.02
   1152x864      75.00
   1024x768      75.03    60.00
   800x600       75.00    60.32
   640x480       75.00    59.94
HDMI-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm
   1920x1080     60.00*+  59.94    50.00
   1680x1050     59.95
   1600x900      60.00
   1440x900      59.89
   1280x1024     75.02    60.02
   1280x800      59.81
   1280x720      60.00    59.94    50.00
   1152x864      75.00
   1024x768      75.03    70.07    60.00
   800x600       75.00    72.19    60.32    56.25
   720x576       50.00
   720x480       59.94
   640x480       75.00    72.81    59.94
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)
quentin@QuentinDesktop ~>

Since my monitors have inverted names, resolutions should be to, in this case I should have:
DVI-D-0 with a 1920*1080 resolution
HDMI-0 with a 1280*1024
But it is not the case, resolutions are correct with the name but the name is not correct with the associated monitor.

How should I resolve this ? I found nothing like this on the web.

EDIT: My graphic card is a GTX 1060 and I use the NVIDIA proprietary driver. Here is my xorg.conf:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 465.31


Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Last edited by Quentincestino (2021-08-28 00:44:30)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 77,497

Re: [SOLVED] Xorg inverted my monitor's names !

Remove the xorg.conf, it's pointless and full of legacy cruft.

But it is not the case, resolutions are correct with the name but the name is not correct with the associated monitor.

Err… What?
Ok, so you've two outputs. One's physically wired through HDMI, the other one through DVI?
The panel on the physical HDMI plug has FullHD (1920x1080) resolution and the DVI one 1280x1024? (Also the HDMI one is bigge/wider, 50x29cm ./. 37x30cm?)

xrandr --output HDMI-0 --left-of DVI-D-0
xrandr --output DVI-D-0 --right-of HDMI-0

Where's the "inversion" here? Those calls should™ be equivalent.

When I login I launch it and I set up my screens using xrandr.

Do you mean you execute that by hand or by some startup  script (that is launched how exactly)?

In any event:
/etc/X11/xorg.conf.d/11-monitor.conf

Section "Monitor"
	Identifier "HDMI-0"
	Option	"Enable"	"True"
	Option	"Primary"	"True"
EndSection

Section "Monitor"
	Identifier "DVI-D-0"
#	Option	"Primary"	"True"
	Option "RightOf" "HDMI-0"
	Option	"Enable"	"True"
EndSection

---

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Quentincestino

Member

Registered: 2020-12-26

Posts: 32

Re: [SOLVED] Xorg inverted my monitor's names !

Err… What?
Ok, so you've two outputs. One's physically wired through HDMI, the other one through DVI?
The panel on the physical HDMI plug has FullHD (1920x1080) resolution and the DVI one 1280x1024? (Also the HDMI one is bigge/wider, 50x29cm ./. 37x30cm?)

I have a HDMI screen which is in 1920*1080 and a 4/3 DVI screen. On xrandr they look fine but their name are in reality inverted and thats weird. xrandr says HDMI-0 is the 1080p screen but when I use xrandr on it, it acts like HDMI-0 was the 4/3 screen and DVI-D-0 is the 1080p one.
It makes that if I want my HDMI screen as main screen and the DVI as secondary at the right of the HDMI I use

xrandr --output DVI-D-0 --right-of HDMI-0

Because as I said names are inverted. And both calls doesn't seem equivalent for KDE because the taskbar only pops on the --output marked, and have focus on it at startup

Do you mean you execute that by hand or by some startup  script (that is launched how exactly)?

I executte it by hand, but I noticed this weirdness when I tried to write the 10-monitor.conf

Quentincestino

Member

Registered: 2020-12-26

Posts: 32

Re: [SOLVED] Xorg inverted my monitor's names !

Okay, I resolved the bug:
1/ I removed the xorg.conf as you said it.
2/ I reinstalled NVIDIA Drivers

And it worked ¯\_(ツ)_/¯