2020. 01. 08. 11:30 keltezéssel, Thomas Fazekas írta:
Dear all,
I'm sitting in front of a brand new Debian Buster install with 2 monitor setup (the one
fro the laptop and a main screen).
Both are working well, in (what I believe is called) xinerama mode, meaning I have wide
desktop of 3840 x 1080 size.
Now what I would like to have is (I believe) 2 separate displays. I understand that this
would come with the limitation that I won't be able to drag windows/applications between
the screens.
Something like this should work for you, too:
Section "Monitor"
Identifier "Monitor-DP1"
Option "AutoServerLayout" "on"
Option "Rotate" "normal"
EndSection
Section "Monitor"
Identifier "Monitor-VGA1"
Option "AutoServerLayout" "on"
Option "Rotate" "normal"
EndSection
Section "Device"
Identifier "Intel0"
Driver "intel"
BusID "PCI:0:2:0"
Screen 0
Option "AccelMethod" "sna"
Option "Monitor-DP1" "DP1"
Option "ZaphodHeads" "1:DP1"
Option "TearFree" "on"
EndSection
Section "Device"
Identifier "Intel1"
Driver "intel"
BusID "PCI:0:2:0"
Screen 1
Option "AccelMethod" "sna"
Option "Monitor-VGA1" "VGA1"
Option "ZaphodHeads" "0:VGA1"
Option "TearFree" "on"
EndSection
Section "Screen"
Identifier "SCREEN"
Option "AutoServerLayout" "on"
Device "Intel0"
Monitor "Monitor-DP1"
SubSection "Display"
Modes "1024x768"
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "SCREEN1"
Option "AutoServerLayout" "on"
Device "Intel1"
Monitor "Monitor-VGA1"
SubSection "Display"
Modes "1024x768"
Depth 24
EndSubSection
EndSection
Section "ServerLayout"
Identifier "LAYOUT"
Option "AutoServerLayout" "on"
Screen 0 "SCREEN"
Screen 1 "SCREEN1" RightOf "SCREEN"
EndSection
Now, the ZaphodHeads setting is something you need to
set up for your own machine, since vendors can wire
up video outputs differently. Look for messages like this
in /var/log/Xorg.0.log:
[ 42699.692] (II) intel(0): switch to mode 1024x768@60.0 on DP1 using pipe 0, position (0,
0), rotation normal, reflection none
There will be one such line for every connected video output
but autodetected when there's no explicit configuration.
You need to specify the pipe number along with the output name
in Option "ZaphodHeads" for every Device section in the config.
Also, BusID should match your machine, not the above quoted example.
Another thing is that with using the Intel driver, the outputs
are called DPI1, VGA1 and so on, with the output type and number
written as you see. With the modesetting driver, they become
DPI-1, VGA-1.
Best regards,
Zoltán Böszörményi
My hardware (inxi -GxxS) :
System: Host: thobian Kernel: 4.19.0-6-amd64 x86_64 bits: 64 compiler: gcc v: 8.3.0
Desktop: Cinnamon 3.8.8 dm: startx
Distro: Debian GNU/Linux 10 (buster)
Graphics: Device-1: Intel UHD Graphics 620 vendor: Lenovo driver: i915 v: kernel bus ID:
00:02.0 chip ID: 8086:5917
Display: tty server: X.Org 1.20.4 driver: modesetting unloaded:
fbdev,vesa
resolution: 1920x1080~60Hz, 1920x1080~60Hz
OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) v: 4.5 Mesa
18.3.6 compat-v: 3.0
direct render: Yes
As far as I'm concerned there is currently no xorg.conf configuration file that would
store any X config, everything comes from the "auto config"
Thanks in advance
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