I mean that the colors are modified. For example, the red color of the YouTube logo has become reddish-brown.
Hmm .. to be honest: I don't see that on Your Picture. for me it looks like normal red Youtube Logo.
Did You have activated the Night Light in the Display Settings? It makes in common a warmer Color. You can find it in Settings > Displays and there at the upper Edge beneath the Display Settings.
Or you could take a Look in the Color Settings and how they are adjusted.
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It looks normal in the screenshot to me, as well.
What this suggests is that the colors are being displayed incorrectly, but captured correctly by the screenshot tool- The information for the display is correct, so the point of failure is the graphics display.
The lshw command seems to be a bit vague. Let's try inxi
sudo apt install inxi
Then run
inxi -G
and relay the output here.
Which kernel are you on? (The Intel i915 driver is supplied by the kernel)
uname -r
Were any packages held back during the upgrade?
sudo apt update && sudo apt full-upgrade
I haven't activated the Night Light, but I can't adjust the Color in the Color settings...
The output is:
Graphics:
Device-1: Intel driver: i915 v: kernel
Display: x11 server: X.Org v: 1.21.1.4 driver: X: loaded: modesetting
unloaded: fbdev,vesa gpu: i915 resolution: 1920x1080
OpenGL: renderer: Mesa Intel Arc A750 Graphics (DG2)
v: 4.6 Mesa 24.0.2 - kisak-mesa PPA
Your command return :
6.5.0-25-generic
I've tried to update but it change nothing
Arc - there we go.
The new Intel Arc graphics has limited support currently on GnuLinux.
It's spotty.
Have you tried rolling back to the earlier kernel?
From Boot, tap esc or tab key to pull up the Grub Menu if it does not appear with each boot.
From Grub Menu, select Advanced Options for Zorin
From the next menu, select Zorin on 6... - the earlier kernel that you had before upgrading to 6.56.0-25 to boot from.
Once logged in, check uname -r to ensure you are no longer on the 6.5.0-25 kernel, then look for the chromatic errors.
If still no good and you have no earlier kernels to try - you can try installing a later 6.7 kernel.
Ok, I'm gonna try
It changed nothing...
How many kernels and which do you have installed?
dpkg -l | grep linux-image
I pursue this because you said it was working on 17, but not 17.1
Otherwise, you can try installing the 6.7 or even 6.8 from the Mainline:
I think a lot :
rc linux-image-6.2.0-39-generic 6.2.0-39.40~22.04.1 amd64 Signed kernel image generic
rc linux-image-6.5.0-14-generic 6.5.0-14.14~22.04.1 amd64 Signed kernel image generic
rc linux-image-6.5.0-15-generic 6.5.0-15.15~22.04.1 amd64 Signed kernel image generic
rc linux-image-6.5.0-17-generic 6.5.0-17.17~22.04.1 amd64 Signed kernel image generic
rc linux-image-6.5.0-18-generic 6.5.0-18.18~22.04.1 amd64 Signed kernel image generic
ii linux-image-6.5.0-21-generic 6.5.0-21.21~22.04.1 amd64 Signed kernel image generic
ii linux-image-6.5.0-25-generic 6.5.0-25.25~22.04.1 amd64 Signed kernel image generic
ii linux-image-6.5.0-26-generic 6.5.0-26.26~22.04.1 amd64 Signed kernel image generic
ii linux-image-generic-hwe-22.04 6.5.0.26.26~22.04.13 amd64 Generic Linux kernel image
I've also noticed that if I boot on a usb key with the safe graphic mode, I no longer have any problems.
Have you tested the 6.2 kernel, yet?
No, I'll try. But I don't know much about linux commands, what's the corresponding command?
No commands are needed, just follow the same procedure as before:
But it doesn't appear in the grub menu
I've only the 6.5.0-26 ; 6.5.0-25 ; 6.5.0-21
Run
sudo apt install linux-image-6.2.0-39-generic linux-headers-6.2.0-39-generic linux-modules-6.2.0-39-generic linux-modules-extra-6.2.0-39-generic
Then reboot, enter grub menu and it should list the 6.2 option.
It didn't work...
Can you please be more specific?
Did the install not work?
Did it not work to show the 6.2 at the Advanced Options menu?
Did it install, show and boot- but not resolve the colors issue?
Yes, it's that.
I've also noticed that if I boot on a usb key of Zorin 17.1 with the safe graphic mode enable, I no longer have any problems.
Can you add the nomodeset parameter to your grub file following these steps:
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It worked, the colors are back to my good ones!
But can I restart my computer normally or do I still need to activate Kernel version 3.2?
And I've got a little problem: night mode doesn't work any more. Is this normal?