The colors on the screen are like limited to 8bit

Question

Jacquesit Author

Level 1

4 points

The colors on the screen are like limited to 8bit

I'm facing a problem on Osx 10.15 ( quiet old) where the colors are messed up and i looks like an 8bit color schema.

The last changes were done on the Desktop backround image.

I tried the colorSync utility I did verify and repairs without any problems, but the Problem stays the same.

I tried changing color profiles without succes. I have created a new user on the mac and all colors were fine.

The problem is related to a specific user.

THis behaviours impacts also all applications.

Posted on Jan 22, 2025 4:24 AM

Reply

Answer 1

Old Toad

Level 10

211,357 points

Jan 22, 2025 9:28 AM in response to Jacquesit

Give this a try: boot into Safe Mode according to How to use safe mode on your Mac and test to see if the problem persists. Reboot normally and test again.

NOTE 1: Safe Mode boot can take up to 3 - 5 minutes as it's doing the following;

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts

• Deletes font caches, kernel cache, and other system cache files

NOTE 2: if you have a wireless keyboard with rechargeable batteries connect it with its charging cable before booting into Safe Mode. This makes it act as a wired keyboard as will insure a successful boot into Safe Mode.