Ubuntu display setting not showing 4k resolution
By Michael Henderson •
I have just received my new two 4k monitors for my dell desktop that mounts an NVIDIA Quadro K2200.
EDIT: the correct model is Dell S2722QC 27-inch
The problem is that in the display settings, the maximum resolution I am allowed to pick is 1920x1080.
At this moment, I have 3 monitors connected and the output of my xrandr is
Screen 0: minimum 8 x 8, current 5040 x 1920, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected 1200x1920+0+0 left (normal left inverted right x axis y axis) 519mm x 324mm 1920x1200 59.95*+ 1600x1200 60.00 1280x1024 75.02 60.02 1152x864 75.00 1024x768 75.03 60.00 800x600 75.00 60.32 640x480 75.00 59.94
DP-0 connected 1920x1080+3120+407 (normal left inverted right x axis y axis) 600mm x 340mm 1920x1080 60.00*+ 59.94 50.00 25.00 23.98 60.00 50.04 1600x1200 60.00 1600x900 60.00 1280x1024 75.02 60.02 1280x720 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 59.94 59.93
DP-1 connected primary 1920x1080+1200+407 (normal left inverted right x axis y axis) 600mm x 340mm 1920x1080 60.00*+ 59.94 50.00 25.00 23.98 60.00 50.04 1600x1200 60.00 1600x900 60.00 1280x1024 75.02 60.02 1280x720 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 59.94 59.93
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis) 3840x2160_60.00 (0x262) 712.750MHz -HSync +VSync h: width 3840 start 4160 end 4576 total 5312 skew 0 clock 134.18KHz v: height 2160 start 2163 end 2168 total 2237 clock 59.98HzI tried to force higher resolution using
cvt 3840 2160 60
xrandr --newmode "3840x2160_60.00" 712.75 3840 4160 4576 5312 2160 2163 2168 2237 -hsync +vsync
xrandr --addmode DP-0 "3840x2160_60.00"but I get the following error
X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 18 (RRAddOutputMode) Serial number of failed request: 43 Current serial number in output stream: 44Also, this is what I get for edid
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 byte reading on this bus...
Problem requesting slave address: Bad file descriptor
No byte reading on this bus...
Problem requesting slave address: Bad file descriptor
3 potential busses found: 1 2 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.
128-byte EDID successfully retrieved from i2c bus 1
If this isn't the EDID you were looking for, consider the other potential busses.
Looks like i2c was successful. Have a good day.
Checksum Correct
Section "Monitor" Identifier "DELL 2408WFP" ModelName "DELL 2408WFP" VendorName "DEL" # Monitor Manufactured week 18 of 2009 # EDID version 1.3 # Digital Display DisplaySize 520 320 Gamma 2.20 Option "DPMS" "true" Horizsync 30-83 VertRefresh 56-76 # Maximum pixel clock is 170MHz #Not giving standard mode: 1280x1024, 60Hz #Not giving standard mode: 1600x1200, 60Hz #Not giving standard mode: 1152x864, 75Hz Modeline "Mode 0" 154.00 1920 1968 2000 2080 1200 1203 1209 1235 +hsync -vsync
EndSectionCan you help me fix this out?
Thank you,
6 Reset to default
