Thanks for offering a hand, malcomlewis!
I confess, I can’t really decipher the output of xrandr --listproviders. Is that listing each of the slices that appear across the screens?
I suspect this may be related to the other question I had posted where Gnome’s desktop configuration tool seems to think the laptop trackpad is a monitor. There are three display ports shown “connected” but I only have one external monitor.
The output of xrandr --listproviders --verbose is too long, so I pasted it here and included a trimmer version below.
https://pastebin.com/embed_js/ZAUp9125
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 32767 x 32767
eDP1 connected primary 3840x2160+0+0 (0x50) normal (normal left inverted right x axis y axis) 350mm x 190mm
Identifier: 0x43
Timestamp: 23831
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff004d10761400000000
311a0104a52313780e1443a85434b925
0c495000000001010101010101010101
0101010101014dd000a0f0703e803020
35005ac2100000180000000000000000
00000000000000000000000000fe0059
32584e44804c51313536443100000000
0002410328001200000b010a20200039
scaling mode: Full aspect
supported: Full, Center, Full aspect
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
3840x2160 (0x50) 533.250MHz -HSync -VSync *current +preferred
h: width 3840 start 3888 end 3920 total 4000 skew 0 clock 133.31KHz
v: height 2160 start 2163 end 2168 total 2222 clock 60.00Hz
3840x2160 (0x18f) 533.000MHz +HSync -VSync
h: width 3840 start 3888 end 3920 total 4000 skew 0 clock 133.25KHz
v: height 2160 start 2163 end 2168 total 2222 clock 59.97Hz
3200x1800 (0x190) 492.000MHz -HSync +VSync
h: width 3200 start 3456 end 3800 total 4400 skew 0 clock 111.82KHz
v: height 1800 start 1803 end 1808 total 1865 clock 59.96Hz
---snip---
640x360 (0x1c9) 18.000MHz -HSync +VSync
h: width 640 start 664 end 720 total 800 skew 0 clock 22.50KHz
v: height 360 start 363 end 368 total 376 clock 59.84Hz
640x360 (0x1ca) 17.750MHz +HSync -VSync
h: width 640 start 688 end 720 total 800 skew 0 clock 22.19KHz
v: height 360 start 363 end 368 total 374 clock 59.32Hz
640x360 (0x1cb) 17.187MHz -HSync +VSync
h: width 640 start 640 end 704 total 768 skew 0 clock 22.38KHz
v: height 360 start 361 end 364 total 373 clock 60.00Hz
DP1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x44
Timestamp: 23831
Subpixel: unknown
Clones: HDMI1
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
DP1-1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x45
Timestamp: 23831
Subpixel: unknown
Clones: DP1-2 DP1-3
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
DP1-2 disconnected (normal left inverted right x axis y axis)
Identifier: 0x46
Timestamp: 23831
Subpixel: unknown
Clones: DP1-1 DP1-3
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
DP1-3 connected 1024x768+0+0 (0x51) normal (normal left inverted right x axis y axis) 0mm x 0mm
Identifier: 0x47
Timestamp: 23831
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones: DP1-1 DP1-2
CRTC: 1
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff004f2e003001010101
2b170104a50000782aa2d0ac5130b425
105054a54b00d1c00101818001010101
01010101010164190040410026301888
3600122221000019000000fd003b471e
6d10010a202020202020000000fc004e
6f6e2d506e500a2020202020000000fe
000a20202020202020202020202000fc
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
1024x768 (0x51) 65.000MHz -HSync -VSync *current +preferred
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
1920x1080 (0x1cc) 148.500MHz -HSync -VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1280x1024 (0x1cd) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x1ae) 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 (0x1ce) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
800x600 (0x1cf) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x1c0) 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 (0x1d0) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x1c5) 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
720x400 (0x1d1) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08Hz
DP2 disconnected (normal left inverted right x axis y axis)
Identifier: 0x48
Timestamp: 23831
Subpixel: unknown
Clones: HDMI2
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
DP2-1 connected 3440x1440+0+0 (0x52) normal (normal left inverted right x axis y axis) 800mm x 330mm
Identifier: 0x49
Timestamp: 23831
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones: DP2-2 DP2-3
CRTC: 2
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff0010aca8a04c383630
311a010380502178eafd25a2584f9f26
0d5054a54b00714f81008180a940d1c0
0101010101019d6770a0d0a022505020
5a041e4f3100001a000000ff00505846
37393643333036384c0a000000fc0044
454c4c205533343135570a20000000fd
0030551e591b000a20202020202001ab
020320f14d9005040302071601141f12
135a2309070765030c00100083010000
023a801871382d40582c45001e4f3100
001e584d00b8a1381440942cb5001e4f
3100001e9f3d70a0d0a0155050208a00
1e4f3100001a7a3eb85060a029502820
68001e4f3100001a565e00a0a0a02950
302035001e4f3100001a000000000065
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
3440x1440 (0x52) 265.250MHz +HSync -VSync *current +preferred
h: width 3440 start 3520 end 3552 total 3600 skew 0 clock 73.68KHz
v: height 1440 start 1461 end 1471 total 1474 clock 49.99Hz
3440x1440 (0x1d2) 157.750MHz +HSync -VSync
h: width 3440 start 3520 end 3552 total 3600 skew 0 clock 43.82KHz
v: height 1440 start 1448 end 1458 total 1461 clock 29.99Hz
2560x1440 (0x19a) 241.500MHz +HSync -VSync
h: width 2560 start 2608 end 2640 total 2720 skew 0 clock 88.79KHz
v: height 1440 start 1443 end 1448 total 1481 clock 59.95Hz
---snip---
640x480 (0x1d0) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x1e1) 25.200MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
v: height 480 start 490 end 492 total 525 clock 60.00Hz
640x480 (0x1c5) 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
720x400 (0x1d1) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08Hz
DP2-2 disconnected (normal left inverted right x axis y axis)
Identifier: 0x4a
Timestamp: 23831
Subpixel: unknown
Clones: DP2-1 DP2-3
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
DP2-3 disconnected (normal left inverted right x axis y axis)
Identifier: 0x4b
Timestamp: 23831
Subpixel: unknown
Clones: DP2-1 DP2-2
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
HDMI1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x4c
Timestamp: 23831
Subpixel: unknown
Clones: DP1
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
…and here’s the output of lspci:
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics P630 [8086:591d] (rev 04) Subsystem: Dell Device [1028:07bf]
Kernel driver in use: i915
Kernel modules: i915
--
01:00.0 3D controller [0302]: NVIDIA Corporation GM107GLM [Quadro M1200 Mobile] [10de:13b6] (rev a2)
Subsystem: Dell Device [1028:07bf]
Kernel driver in use: nvidia
Kernel modules: nouveau, nvidia_drm, nvidia