Andrew M.A. Cater composed on 2025-02-23 22:45 (UTC):
> Two thoughts: one is that you're running Trinity - which isn't a standard
> Debian desktop available forom the installer.
Trixie/Trinity works with 5 displays too:
# inxi -CSMz --za
System:
Kernel: 6.12.11-amd64 arch: x86_64 bits: 64
Desktop: TDE (Trinity) v: R14.1.4~[DEVELOPMENT] Distro: Debian GNU/Linux
trixie/sid
Machine:
Type: Desktop Mobo: ASUSTeK model: PRIME B250M-C v: Rev X.0x
serial: <filter> UEFI: American Megatrends v: 1608 date: 10/21/2019
CPU:
Info: quad core model: Intel Core i5-7500T bits: 64 type: MCP cache:
L2: 1024 KiB
Speed (MHz): avg: 800 min/max: 800/3300 cores: 1: 800 2: 800 3: 800 4: 800
# xrandr --output DP-1-3 --primary --mode 2560x1440 --below HDMI-2 --output
HDMI-2 --mode 1920x1200 --pos 0x0 --output DP-1-4 --mode 1680x1050 --right-of
HDMI-2 --output DP-1 --mode 1680x1050 --right-of DP-1-3 --output HDMI-3
--right-of DP-1-4
# inxi -Gaz --za
Graphics:
Device-1: Intel HD Graphics 630 vendor: ASUSTeK H110I-PLUS driver: i915
v: kernel arch: Gen-9.5 process: Intel 14nm built: 2016-20 ports:
active: DP-1,HDMI-A-2,HDMI-A-3 empty: DP-2,HDMI-A-1 bus-ID: 00:02.0
chip-ID: 8086:5912 class-ID: 0300
Device-2: NVIDIA GF119 [NVS 310] vendor: Hewlett-Packard driver: nouveau
v: kernel non-free: series: 390.xx+ status: legacy (EOL~2022-11-22) last:
release: 390.157 kernel: 6.0 xorg: 1.21 arch: Fermi code: GF1xx
process: 40/28nm built: 2010-2016 pcie: gen: 1 speed: 2.5 GT/s lanes: 16
ports: active: DP-3,DP-4 empty: none bus-ID: 01:00.0 chip-ID: 10de:107d
class-ID: 0300 temp: 49.0 C
Display: x11 server: X.Org v: 21.1.15 compositor: Twin v: 3.0 driver: X:
loaded: modesetting unloaded: fbdev,vesa dri: iris gpu: i915,nouveau
display-ID: :0 screens: 1
Screen-1: 0 s-res: 5200x2640 s-dpi: 121 s-size: 1095x556mm (43.11x21.89")
s-diag: 1228mm (48.35")
Monitor-1: DP-1 pos: 2-3 model: Lenovo L2251x Wide serial: <filter>
built: 2011 res: mode: 1680x1050 hz: 60 scale: 100% (1) dpi: 90 gamma: 1.2
size: 474x296mm (18.66x11.65") diag: 559mm (22") ratio: 16:10 modes:
max: 1680x1050 min: 720x400
Monitor-2: DP-3 mapped: DP-1-3 pos: primary,2-1 model: Acer K272HUL
serial: <filter> built: 2018 res: mode: 2560x1440 hz: 60 scale: 100% (1)
dpi: 109 gamma: 1.2 size: 598x336mm (23.54x13.23") diag: 686mm (27")
ratio: 16:9 modes: max: 2560x1440 min: 720x400
Monitor-3: DP-4 mapped: DP-1-4 pos: 1-2 model: Dell P2213 serial: <filter>
built: 2013 res: mode: 1680x1050 hz: 60 scale: 100% (1) dpi: 90 gamma: 1.2
size: 473x296mm (18.62x11.65") diag: 558mm (22") ratio: 16:10 modes:
max: 1680x1050 min: 720x400
Monitor-4: HDMI-A-2 mapped: HDMI-2 pos: 1-1 model: NEC EA243WM
serial: <filter> built: 2011 res: mode: 1920x1200 hz: 60 scale: 100% (1)
dpi: 94 gamma: 1.2 size: 519x324mm (20.43x12.76") diag: 612mm (24.1")
ratio: 16:10 modes: max: 1920x1200 min: 640x480
Monitor-5: HDMI-A-3 mapped: HDMI-3 pos: 1-4 model: Dell P2012H
serial: <filter> built: 2012 res: mode: 1600x900 hz: 60 scale: 100% (1)
dpi: 92 gamma: 1.2 size: 443x249mm (17.44x9.8") diag: 508mm (20")
ratio: 16:9 modes: max: 1600x900 min: 720x400
API: EGL v: 1.5 hw: drv: intel iris drv: nvidia nouveau platforms:
device: 0 drv: iris device: 1 drv: nouveau device: 2 drv: swrast gbm:
drv: iris surfaceless: drv: iris x11: drv: iris inactive: wayland
API: OpenGL v: 4.6 compat-v: 4.3 vendor: intel mesa v: 24.2.8-1 glx-v: 1.4
direct-render: yes renderer: Mesa Intel HD Graphics 630 (KBL GT2)
device-ID: 8086:5912 memory: 7.57 GiB unified: yes
API: Vulkan v: 1.4.304 layers: 4 device: 0 type: integrated-gpu name: Intel
HD Graphics 630 (KBL GT2) driver: N/A device-ID: 8086:5912
surfaces: xcb,xlib device: 1 type: cpu name: llvmpipe (LLVM 19.1.4 256
bits) driver: N/A device-ID: 10005:0000 surfaces: xcb,xlib
Info: Tools: api: eglinfo, glxinfo, vulkaninfo x11: xdriinfo, xdpyinfo,
xprop, xrandr
#
Alternatively:
# inxi -CSMz --za
System:
Kernel: 6.12.11-amd64 arch: x86_64 bits: 64
Desktop: TDE (Trinity) v: R14.1.4~[DEVELOPMENT] Distro: Debian GNU/Linux
trixie/sid
Machine:
Type: Desktop Mobo: ASUSTeK model: PRIME B250M-C v: Rev X.0x
serial: <filter> UEFI: American Megatrends v: 1608 date: 10/21/2019
CPU:
Info: quad core model: Intel Core i5-7500T bits: 64 type: MCP cache:
L2: 1024 KiB
Speed (MHz): avg: 800 min/max: 800/3300 cores: 1: 800 2: 800 3: 800 4: 800
# xrandr --output DP-1-3 --pos 0x0 --mode 1680x1050 --output DP-1 --primary
--mode 2560x1440 --below DP-1-3 --output DP-1-4 --mode 1680x1050 --right-of
DP-1-3 --output HDMI-2 --mode 1920x1200 --right-of DP-1 --output HDMI-3
--right-of DP-1-4
# inxi -Gaz --za
Graphics:
Device-1: Intel HD Graphics 630 vendor: ASUSTeK H110I-PLUS driver: i915
v: kernel arch: Gen-9.5 process: Intel 14nm built: 2016-20 ports:
active: DP-1,HDMI-A-2,HDMI-A-3 empty: DP-2,HDMI-A-1 bus-ID: 00:02.0
chip-ID: 8086:5912 class-ID: 0300
Device-2: NVIDIA GF119 [NVS 310] vendor: Hewlett-Packard driver: nouveau
v: kernel non-free: series: 390.xx+ status: legacy (EOL~2022-11-22) last:
release: 390.157 kernel: 6.0 xorg: 1.21 arch: Fermi code: GF1xx
process: 40/28nm built: 2010-2016 pcie: gen: 1 speed: 2.5 GT/s lanes: 16
ports: active: DP-3,DP-4 empty: none bus-ID: 01:00.0 chip-ID: 10de:107d
class-ID: 0300 temp: 49.0 C
Display: x11 server: X.Org v: 21.1.15 compositor: Twin v: 3.0 driver: X:
loaded: modesetting unloaded: fbdev,vesa dri: iris gpu: i915,nouveau
display-ID: :0 screens: 1
Screen-1: 0 s-res: 4960x2490 s-dpi: 120 s-size: 1046x525mm (41.18x20.67")
s-diag: 1170mm (46.08")
Monitor-1: DP-1 pos: primary,2-1 model: Acer K272HUL serial: <filter>
built: 2018 res: mode: 2560x1440 hz: 60 scale: 100% (1) dpi: 109 gamma: 1.2
size: 598x336mm (23.54x13.23") diag: 686mm (27") ratio: 16:9 modes:
max: 2560x1440 min: 720x400
Monitor-2: DP-3 mapped: DP-1-3 pos: 1-1 model: Dell P2213 serial: <filter>
built: 2013 res: mode: 1680x1050 hz: 60 scale: 100% (1) dpi: 90 gamma: 1.2
size: 473x296mm (18.62x11.65") diag: 558mm (22") ratio: 16:10 modes:
max: 1680x1050 min: 720x400
Monitor-3: DP-4 mapped: DP-1-4 pos: 1-2 model: Lenovo L2251x Wide
serial: <filter> built: 2011 res: mode: 1680x1050 hz: 60 scale: 100% (1)
dpi: 90 gamma: 1.2 size: 474x296mm (18.66x11.65") diag: 559mm (22")
ratio: 16:10 modes: max: 1680x1050 min: 720x400
Monitor-4: HDMI-A-2 mapped: HDMI-2 pos: 2-3 model: NEC EA243WM
serial: <filter> built: 2011 res: mode: 1920x1200 hz: 60 scale: 100% (1)
dpi: 94 gamma: 1.2 size: 519x324mm (20.43x12.76") diag: 612mm (24.1")
ratio: 16:10 modes: max: 1920x1200 min: 640x480
Monitor-5: HDMI-A-3 mapped: HDMI-3 pos: 1-4 model: Dell P2012H
serial: <filter> built: 2012 res: mode: 1600x900 hz: 60 scale: 100% (1)
dpi: 92 gamma: 1.2 size: 443x249mm (17.44x9.8") diag: 508mm (20")
ratio: 16:9 modes: max: 1600x900 min: 720x400
API: EGL v: 1.5 hw: drv: intel iris drv: nvidia nouveau platforms:
device: 0 drv: iris device: 1 drv: nouveau device: 2 drv: swrast gbm:
drv: iris surfaceless: drv: iris x11: drv: iris inactive: wayland
API: OpenGL v: 4.6 compat-v: 4.3 vendor: intel mesa v: 24.2.8-1 glx-v: 1.4
direct-render: yes renderer: Mesa Intel HD Graphics 630 (KBL GT2)
device-ID: 8086:5912 memory: 7.57 GiB unified: yes
API: Vulkan v: 1.4.304 layers: 4 device: 0 type: integrated-gpu name: Intel
HD Graphics 630 (KBL GT2) driver: N/A device-ID: 8086:5912
surfaces: xcb,xlib device: 1 type: cpu name: llvmpipe (LLVM 19.1.4 256
bits) driver: N/A device-ID: 10005:0000 surfaces: xcb,xlib
Info: Tools: api: eglinfo, glxinfo, vulkaninfo x11: xdriinfo, xdpyinfo,
xprop, xrandr
#
:)
It seems better to have outputs from the each GPU feeding a single horizontal
plane of displays, so the latter above has the two larger lower displays fed
by the iGPU, the twin 1680x1050s fed by the dGPU, and the 1600x900 on a
leftover,
in this case, iGPU DVI-D connector labeled HDMI-A-2 by kernel and HDMI-3 by X
(unused iGPU VGA connector is labeled DP-2 by both kernel and X):
# ls -gGh /sys/class/drm
total 0
lrwxrwxrwx 1 0 Feb 24 02:41 card0 ->
../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0
lrwxrwxrwx 1 0 Feb 24 02:41 card0-DP-3 ->
../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-3
lrwxrwxrwx 1 0 Feb 24 02:41 card0-DP-4 ->
../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-4
lrwxrwxrwx 1 0 Feb 24 02:41 card1 ->
../../devices/pci0000:00/0000:00:02.0/drm/card1
lrwxrwxrwx 1 0 Feb 24 02:41 card1-DP-1 ->
../../devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-1
lrwxrwxrwx 1 0 Feb 24 02:41 card1-DP-2 ->
../../devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-2
lrwxrwxrwx 1 0 Feb 24 02:41 card1-HDMI-A-1 ->
../../devices/pci0000:00/0000:00:02.0/drm/card1/card1-HDMI-A-1
lrwxrwxrwx 1 0 Feb 24 02:41 card1-HDMI-A-2 ->
../../devices/pci0000:00/0000:00:02.0/drm/card1/card1-HDMI-A-2
lrwxrwxrwx 1 0 Feb 24 02:41 card1-HDMI-A-3 ->
../../devices/pci0000:00/0000:00:02.0/drm/card1/card1-HDMI-A-3
lrwxrwxrwx 1 0 Feb 24 02:41 renderD128 ->
../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/renderD128
lrwxrwxrwx 1 0 Feb 24 02:41 renderD129 ->
../../devices/pci0000:00/0000:00:02.0/drm/renderD129
-r--r--r-- 1 4.0K Feb 24 03:55 version
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based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
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