Zorin OS colors on external monitor completely messed up

Hardware Support
,
1

So I've been using zorin os 16 since it came out on my laptop hooked up to an external monitor. But when I loaded the distro on another laptop and hooked it up to the same monitor the colors appear terrible and very washed out. Is it something to do with the os? Since it's the same monitor and nothing's changed except for the laptop.

2

Does the other laptop use different graphics (Intel, AMD...) or additional graphics card like Nvidia?
This may sound like calling Tech Support... But have you double checked the cables? That seems like a good starting point.

3

the first laptop has dedicated nvidia graphics, the second one with the messed up colors has an old basic integrated graphics card

4

On the second one, would you be able to open a terminal on it and run:

sudo lshw -c video

and paste the output here?

5 
  *-display
       description: VGA compatible controller
       product: Skylake GT2 [HD Graphics 520]
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 07
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:127 memory:eb000000-ebffffff memory:a0000000-afffffff ioport:e000(size=64) memory:c0000-dffff
6

You might try removing the xorg package:

sudo apt purge xserver-xorg-video-intel && sudo reboot

The computer will restart- please test on the external monitor.

7

Did so, problem still persists.

8

Everything looks normal on the Notebook Screen, right?

9

Yes the same

10

Hmmm...
This is an odd one.
You might test

xrandr

Find the external monitor connection. Let's say it is HDMI-1
Try:

xrandr --output HDMI1 --set "Broadcast RGB" "Full"

If it is VGA-1

xrandr --output VGA1 --set "Broadcast RGB" "Full"

IF that works, we would need to set that up to operate permanently by adding that to your ~/.profile

1 Like
11

Perfect my friend, thanks a bunch. I just copy the line to the end of ~/.profile?

12 
echo 'xrandr --output HDMI1 --set "Broadcast RGB" "Full"' >> ~/.xprofile
13

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