XFCE and optimus manager display management

firstairbender · 2020-08-28 19:42:16

xfce-version: 4.14
OS: Archlinux
Kernel: 5.8
Display manager: sddm

I have just switched to using optimus manager, in order to make use of hybrid graphics, and I would say the transition was smooth except for one little quirk I just noticed.

First I open display manager and rearrange my screens as shown in the following image:

Here is what the displays look like when I press apply:

.

Now I try to rearrange the displays so that the larger one is above my laptop:

When I press apply, xfce rearranges the displays so that the top display's height extends all the way down to the bottom of my laptop display.
Here is a screenshot of all the displays:

As you can see, the top display is extended all the way down and cuts off my primary display.

Can anyone advice me on what to do about this?

Thanks

P.S. I should mention that when I switch to just using the nvidia graphics card, the displays are shown correctly.

Last edited by firstairbender (2020-08-29 02:40:58)

ToZ · 2020-08-28 20:20:44

Can you run and report the output of "xrandr" for both scenarios as well as the nvidia scenario?

firstairbender · 2020-08-28 21:26:21

eDP-1-1 is my Laptop
HDMI-0 is the external display

Alright this is the output of

xrandr

when running with just the nvidia GPU:

Screen 0: minimum 8 x 8, current 3053 x 2160, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 2560x1080+493+0 (normal left inverted right x axis y axis) 677mm x 290mm
2560x1080 74.99*+
1920x1080 60.00 59.94 50.00 60.05 60.00 50.04
1680x1050 59.95
1600x900 60.00
1280x1024 75.02 60.02
1280x720 60.00 59.94 50.00
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.93 59.94
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
eDP-1-1 connected primary 1920x1080+0+1080 (normal left inverted right x axis y axis) 381mm x 214mm
1920x1080 60.01*+ 60.01 59.97 59.96 59.93
1680x1050 59.95 59.88
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1280x800 59.99 59.97 59.81 59.91
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
700x525 59.98
800x450 59.95 59.82
640x512 60.02
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
640x400 59.88 59.98
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
1680x1050 (0x227) 146.250MHz -HSync +VSync
h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.29KHz
v: height 1050 start 1053 end 1059 total 1089 clock 59.95Hz
1280x1024 (0x22a) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1024x768 (0x230) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x232) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
640x480 (0x237) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz

And this is the output with the same xrandr command when running in hybrid mode (This is the one that doesn't work well in xfce):

eDP-1 is my Laptop
HDMI-1-0 is the external display

Screen 0: minimum 320 x 200, current 3050 x 2160, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+1080 (normal left inverted right x axis y axis) 381mm x 214mm
1920x1080 60.01*+ 60.01 59.97 59.96 59.93
1680x1050 59.95 59.88
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1280x800 59.99 59.97 59.81 59.91
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
700x525 59.98
800x450 59.95 59.82
640x512 60.02
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
640x400 59.88 59.98
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-1-0 disconnected
DP-1-1 disconnected
HDMI-1-0 connected 2560x1080+490+0 677mm x 290mm panning 2560x2160+490+0 tracking 3050x2160+0+0 border 0/0/0/0
2560x1080 74.99*+
1920x1080 60.00 59.94 50.00 60.05 60.00 50.04
1680x1050 59.95
1600x900 60.00
1280x1024 75.02 60.02
1280x720 60.00 59.94 50.00
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.93 59.94
DP-1-2 disconnected
DP-1-3 disconnected
1680x1050 (0x49) 146.250MHz -HSync +VSync
h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.29KHz
v: height 1050 start 1053 end 1059 total 1089 clock 59.95Hz
1280x1024 (0x50) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1024x768 (0x61) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x70) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
640x480 (0x7d) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz

Last edited by firstairbender (2020-08-28 21:45:00)

ToZ · 2020-08-29 01:22:18

Interesting. In hybrid mode, Xfce is enabling panning:

HDMI-1-0 connected 2560x1080+490+0 677mm x 290mm panning 2560x2160+490+0 tracking 3050x2160+0+0 border 0/0/0/0

Unfortunately, I'm not able to test this myself, but it might be worth creating a bug report for this - see if a developer can chime in.

firstairbender · 2020-08-29 02:35:23

ToZ wrote:

Interesting. In hybrid mode, Xfce is enabling panning:
HDMI-1-0 connected 2560x1080+490+0 677mm x 290mm panning 2560x2160+490+0 tracking 3050x2160+0+0 border 0/0/0/0
Unfortunately, I'm not able to test this myself, but it might be worth creating a bug report for this - see if a developer can chime in.

Yea, I noticed that too, and I was trying to use xrandr to get rid of the panning, but even that didn't work because I couldn't get the positioning right.

Is this the right place the raise the issue? Also, under what project should I raise the issue?

ToZ · 2020-08-29 09:32:49

firstairbender wrote:

Is this the right place the raise the issue? Also, under what project should I raise the issue?

Yes. I would put it under the xfce4-settings project - it contains the display management component.

firstairbender · 2020-08-30 05:33:28

ToZ wrote:

firstairbender wrote:
Is this the right place the raise the issue? Also, under what project should I raise the issue?
Yes. I would put it under the xfce4-settings project - it contains the display management component.

Thanks for your help. I've reported it here:
https://gitlab.xfce.org/xfce/xfce4-sett … issues/224

Hopefully that helps.

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#1 2020-08-28 19:42:16

XFCE and optimus manager display management

#2 2020-08-28 20:20:44

Re: XFCE and optimus manager display management

#3 2020-08-28 21:26:21

Re: XFCE and optimus manager display management

#4 2020-08-29 01:22:18

Re: XFCE and optimus manager display management

#5 2020-08-29 02:35:23

Re: XFCE and optimus manager display management

#6 2020-08-29 09:32:49

Re: XFCE and optimus manager display management

#7 2020-08-30 05:33:28

Re: XFCE and optimus manager display management

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