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I have two 1440x2560 monitors, I try to use nvidia surround to combine them to a 2880x2560 monitor:
❯ xrandr
Screen 0: minimum 8 x 8, current 2880 x 2560, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 connected 1440x2560+0+0 left (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+ 74.97
1920x1080 74.97 60.00 59.94 50.00
1680x1050 59.95
1440x900 59.89
1280x1024 75.02 60.02
1280x960 60.00
1280x720 60.00 59.94 50.00
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 59.93
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected primary 1440x2560+1440+0 right (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+ 74.97
1920x1080 74.97 60.00 59.94 50.00
1680x1050 59.95
1440x900 59.89
1280x1024 75.02 60.02
1280x960 60.00
1280x720 60.00 59.94 50.00
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 59.93
❯ gpustat
desktop Fri Oct 28 11:32:34 2022 520.56.06
[0] NVIDIA GeForce GTX 1660 Ti | 44°C, 4 % | 1318 / 6144 MB | wzy(482M) wzy(2M) wzy(32M) wzy(235M) wzy(121M) wzy(2M) wzy(2M) wzy(2M) wzy(2M) wzy(3M) wzy(124M) wzy(32M) wzy(0M)
I refer https://blog.csdn.net/shenghuaDay/artic … 1977242#t8, It tells me nvidia-settings can use TwinView in Configuration.
But my nvidia-settings's configuration only have Disables/X screen 0/New X screen (requires X restart).
I cannot use nvidia-settings's TwinView to generate Xorg.conf, so I only write it by myself:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 520.56.06
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
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 "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
Option "NoTwinViewXineramaInfo" "1"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "1"
Option "MetaModes" "DFP-2: 1440x2560 +0+0,DFP-4: 1440x2560 +1440+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
DFP-2 and DFP-4 is right because I have seen nvidia-settings.
But it cannot work. Anyone knows why? TIA!
Last edited by Freed (2022-10-28 14:50:42)
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Option "MetaModes" "DFP-2: 1440x2560 +0+0,DFP-4: 1440x2560 +1440+0"
Do you physically set up the two Displays in Portrait Mode?
Maybe I'm wrong, but shouldn't the resolution be 2560x1440? Just asking...
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# nvidia-settings: version 260.19.44 (buildmeister@swio-display-x86-rhel47-08.nvidia.com) Sun Feb 27 22:59:44 PST 2011
TwinView was discontinued some years ago.
Remove the config you created and elaborate on your goals.
Screen 0: minimum 8 x 8, current 2880 x 2560, maximum 32767 x 32767
You *are* running a "2880x2560 monitor" - of sorts.
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TwinView was discontinued some years ago.
So is there other method?
You *are* running a "2880x2560 monitor" - of sorts.
I hope OS detect the two monitors as one screen: Such as maximize a window will
become 2880x2560, not 1440x2560. Like https://superuser.com/questions/476012/ … 3-monitors
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❯ xrandr --listmonitors
Monitors: 2
0: +*HDMI-1 810/597x4552/336+1440+0 HDMI-1
1: +DP-0 810/597x4552/336+0+0 DP-0
❯ xrandr --setmonitor big auto HDMI-1,DP-0
output list HDMI-1,DP-0
add monitor HDMI-1
output name HDMI-1
add monitor DP-0
output name DP-0
But nothing happens. I notice
Some desktop environments do not support this feature yet. Openbox has been tested and works with this feature.
Is only openbox support it? KDE and gnome seem not to support it.
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I have tested openbox and lxqt with openbox can work (maximize a window will get a big window across two monitors). KDE/openbox, plasma, gnome, gnome classic cannot. And even if lxqt with openbox, the taskbar only support the first monitor's top/bottom/left and second monitor's top/bottom/right, not the virtual monitor's top/bottom.
And openbox and lxqt cannot remember the screen size: Every log in I'll get a 5120x1440 not 2880x2560 screen. I want to know how to let it remember it? And is there any method to rotate one screen in command line?
xrandr -o left
will rotate all monitors, that is I'll get 1440x5120 from 5120x1440, not 2880x2560.
Thanks!
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openbox and lxqt cannot remember the screen size
I cannot found monitor rotation setting in openbox configuration (ob-conf).
And I should click Save not Apply to let lxqt remember screen setting
is there any method to rotate one screen in command line
http://www.straightrunning.com/tools/xrandr.html xrandr seems only can rotate all monitors, right?
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And it looks like I don't need any setting -- even if I
xrandr delmonitor big
, openbox/lxqt will also maximize a window across two monitors.
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xrandr --output DP-0 -o left
xrandr --output HDMI-1 -o left --right-of DP-0
(Theoretically you could combine the commands, but that often doesn't really work as expected)
IIRC kwin (plasma window manager) has a "xinerama" setting to treat all outputs as one, not sure whether that's still there or exposed to the GUI config
qdbus org.kde.KWin /KWin supportInformation
This will however not extend to plasma.
Edit: on a formal note, please stop bumping.
Edit your previous post if nobody has replied so far.
Last edited by seth (2022-10-28 14:37:35)
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often doesn't really work as expected
Tested it cannot work
This will however not extend to plasma.
Tested right.
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TwinView was discontinued some years ago.
I advise update archlinux's wiki to let others know this thing.
I have tested xfce4 also cannot support. So it looks lxqt/openbox is the only solution Thanks!
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A final question: Now I know openbox can support, for display manager even if grub, Can them maximize them in 2880x2560 screen? I have tested sddm/gdm/grub cannot.
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https://wiki.archlinux.org/title/XDM is probably configurable enough for that (eg. setting the wallpaper w/ "feh --no-xinerama --bg-fill" and positioning the login dialog w/ fixed coordinates in the center)
The default design looks errr… dated, but see https://archlinux.org/packages/communit … archlinux/ as an example.
nb. that xdm will execute your xinitrc, you cannot select a session type there.
Grub is the bootloader and the output handling at that stage cannot be affected this way.
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I add it to /etc/X11/xdm/Xresources
xlogin*frameWidth: 1
xlogin*innerFramesWidth: 1
xlogin*logoPadding: 0
xlogin*geometry: 2880x2560-0-0
xlogin*allowNullPasswd: true
But the screen size is 5120x1440. And even if I enter lxqt, it still 5120x1440, even I cannot change it:
monitor disappear
Last edited by Freed (2022-10-28 20:21:27)
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https://wiki.archlinux.org/title/Multih … _xorg.conf
/etc/X11/xorg.conf.d/11-monitor.conf
Section "Monitor"
Identifier "DP-0"
Option "Rotate" "left"
EndSection
Section "Monitor"
Identifier "HDMI-1"
Option "Rotate" "left"
Option "RightOf" "DP-0"
EndSection
You could also call xrandr in /etc/X11/xdm/Xsetup_0
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# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 520.56.06
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
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 "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
Option "NoTwinViewXineramaInfo" "1"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Monitor"
Identifier "DP-0"
Option "Rotate" "left"
EndSection
Section "Monitor"
Identifier "HDMI-1"
Option "Rotate" "right"
Option "RightOf" "DP-0"
EndSection
It works. Although no any monitor can be detected by lxqt.
Thanks a lot!
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Section "Monitor"
Identifier "DP-0"
Option "Rotate" "left"
EndSection
Section "Monitor"
Identifier "HDMI-1"
Option "Rotate" "right"
Option "RightOf" "DP-0"
EndSection
is sufficient.
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
is cruft, those drivers don't exist since a over a decade.
Section "Files"
EndSection
is obviously void
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection
…
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection
is a bad idea and will break when you make changes to the system (static server layouts are actively discouraged)
No idea about lxqt though (neither what tool you're using there or why it would fail to reflect the randr condition)
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is sufficient.
Right.
Section "Monitor"
Identifier "DP-0"
Option "Rotate" "left"
EndSection
Section "Monitor"
Identifier "HDMI-1"
Option "Rotate" "right"
Option "RightOf" "DP-0"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
Option "NoTwinViewXineramaInfo" "1"
EndSection
is enough.
No idea about lxqt
xrandr can work. It should be lxqt's problem. I'll report to them.
And I use xscreensaver to lock screen. But it display separately in two screen not in 2880x2560.
I test i3lock and it is same. Does there any screen lock program can support? Thanks!
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no any monitor can be detected by lxqt.
Should I add something about dbus in .xsession? I found it only happened for xdm not for sddm.
So I guess I miss something.
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Last link below, it mentions what needs to be included at least.
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https://github.com/lxqt/lxqt/issues/2319
I have solved Need dbus-launch.
And
Does there any screen lock program can support 2880x2560
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No you dont, please see the link in my signature.
And: no idea, sorry.
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see the link in my signature
I know, I must add these line not dbus-launch:
userresources=$HOME/.Xresources
usermodmap=$HOME/.Xmodmap
sysresources=/etc/X11/xinit/.Xresources
sysmodmap=/etc/X11/xinit/.Xmodmap
if [ -f $sysresources ]; then
xrdb -merge $sysresources
fi
if [ -f $sysmodmap ]; then
xmodmap $sysmodmap
fi
if [ -f "$userresources" ]; then
xrdb -merge "$userresources"
fi
if [ -f "$usermodmap" ]; then
xmodmap "$usermodmap"
fi
if [ -d /etc/X11/xinit/xinitrc.d ] ; then
for f in /etc/X11/xinit/xinitrc.d/?*.sh ; do
[ -x "$f" ] && . "$f"
done
unset f
fi
Thanks!
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