I have a dual boot Dell Inspiron 17-7700, with Nvidia GeForce 940MX. I plan on buying a 4k monitor, but I wanted to test if it actually worked on my laptop. The display I am trying to connect to is AOC U2790PQU.
In windows everyting works fine. When changing to Ubuntu I am unable to select 4k resolution.
xrandr
only shows up to 1920x1080. Creating a custom profile did not work:
xrandr --output HDMI-1 --mode "Mode 0" --verbose
screen 0: 3840x2160 1013x570 mm 96.25dpi
crtc 1: Mode 0 60.00 +0+0 "HDMI-1"
xrandr: Configure crtc 1 failed
crtc 0: disable
crtc 1: disable
crtc 2: disable
screen 0: revert
crtc 0: revert
crtc 1: revert
crtc 2: revert
I've tried using a Ubuntu Live USB to see if it was my installation (I mess around a lot, and I was thinking maybe i3 was the problem). This did also not work.
I've resorted to changing x.org files and adding modlines as mentioned here (4k@60hz on linux). This outputs the same error as above (configure crtc 1 failed).
Changing graphics driver (in Software center - Additional Drivers) from Nouveau to NVIDIA driver metapackage nvidia-driver-435 (proprietary, tested) did not help.
Relevant information (I'm of course not sure if this is everthing, tell me if something is missing):
sudo lshw -C video
*-display
description: VGA compatible controller
product: HD Graphics 620
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 02
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:145 memory:d4000000-d4ffffff memory:b0000000-bfffffff ioport:f000(size=64) memory:c0000-dffff
*-display UNCLAIMED
description: 3D controller
product: GM108M [GeForce 940MX]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:d2000000-d2ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:e000(size=128) memory:d3000000-d307ffff
-
xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted rig
1920x1080 60.00*+ 59.97 59.96 59.93 48.07
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1440x900 59.89
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1360x768 59.80 59.96
1280x800 59.99 59.97 59.81 59.91
1152x864 60.00
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
800x512 60.17
700x525 59.98
800x450 59.95 59.82
640x512 60.02
720x450 59.89
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
680x384 59.80 59.96
640x400 59.88 59.98
576x432 60.06
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
HDMI-1 connected 1920x1080+0+0 (normal left inverted right x ax
1920x1080 60.00 50.00 59.94*
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
-
sudo get-edid | parse-edid
This is read-edid version 3.0.2. Prepare for some fun.
Attempting to use i2c interface
No EDID on bus 0
No EDID on bus 2
No EDID on bus 4
No EDID on bus 5
No EDID on bus 6
2 potential busses found: 1 3
Will scan through until the first EDID is found.
Pass a bus number as an option to this program to go only for that one.
256-byte EDID successfully retrieved from i2c bus 1
Looks like i2c was successful. Have a good day.
Checksum Correct
Section "Monitor"
Identifier "U2790B"
ModelName "U2790B"
VendorName "AOC"
# Monitor Manufactured week 38 of 2019
# EDID version 1.3
# Digital Display
DisplaySize 600 340
Gamma 2.20
Option "DPMS" "true"
Horizsync 30-160
VertRefresh 23-80
# Maximum pixel clock is 600MHz
#Not giving standard mode: 1920x1080, 60Hz
#Not giving standard mode: 1680x1050, 60Hz
#Not giving standard mode: 1440x900, 60Hz
#Not giving standard mode: 1280x1024, 60Hz
#Not giving standard mode: 1280x960, 60Hz
#Not giving standard mode: 1280x720, 60Hz
#Extension block found. Parsing...
#WARNING: I may have missed a mode (CEA mode 93)
#WARNING: I may have missed a mode (CEA mode 94)
#WARNING: I may have missed a mode (CEA mode 95)
#WARNING: I may have missed a mode (CEA mode 96)
#WARNING: I may have missed a mode (CEA mode 97)
Modeline "Mode 9" 241.50 2560 2608 2640 2720 1440 1443 1448 1481 +hsync +vsync
Modeline "Mode 0" 533.25 3840 3888 3920 4000 2160 2163 2168 2222 +hsync -vsync
Modeline "Mode 1" 262.75 3840 3888 3920 4000 2160 2163 2168 2191 +hsync -vsync
Modeline "Mode 2" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Modeline "Mode 3" 74.250 1280 1390 1420 1650 720 725 730 750 +hsync +vsync
Modeline "Mode 4" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync
Modeline "Mode 5" 148.500 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync
Modeline "Mode 6" 74.250 1280 1720 1760 1980 720 725 730 750 +hsync +vsync
Modeline "Mode 7" 25.200 640 656 752 800 480 490 492 525 -hsync -vsync
Modeline "Mode 8" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync
Modeline "Mode 10" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Modeline "Mode 11" 74.25 1280 1390 1430 1650 720 725 730 750 +hsync +vsync
Modeline "Mode 12" 277.25 1920 1968 2000 2080 2160 2163 2173 2222 +hsync -vsync
Option "PreferredMode" "Mode 9"
EndSection
I am out of ideas. Thank you for any help.
