Hi, I've been experiencing an error where upon opening my PC, or after the screen just being black, my screen has a discolouration with specific colours making them become pixelated. This problem never occurs randomly and only during the following steps.
To recreate the problem:
1. Put PC to sleep, restart, anything that makes the screen black. 9/10 times issue occurs because of this.
2. Open a game that makes the screen black upon opening or switch between game and desktop or browser for example with alt tab.
By making the screen black, I don't mean that the colour black triggers this problem. I just mean at points like after you start up your PC and before the hp sign comes up the entire screen is black.
The problem goes away sometimes in seconds, and sometimes can take up to an hour. Ways I've found that deal with the problem is opening things suddenly which gets the PC to fix its colours immediately. This usually happens when I open something with a completely bright or dark page. For example, opening the web spotify page (mostly a dark grey page) or refreshing it sometimes fixes the problem, and opening chrome (start up page is just the new tab page which is all white) also fixes the problem. After a few attempts or if it doesn't work the first time, I can't fix it and it just goes away at a random other time. Sometimes when I move the laptop monitor lid back and forward the problem goes away which is probably worth mentioning, but I can't tell if I got lucky or it's actually doing something. This doesn't involve the screen changing colour so it contradicts my usual solution. Not sure if it's a software or hardware problem, open to any suggestions to fix. Laptop is old from 2012 but is still fast and works fine apart from this issue. I had it a while ago but suddenly it stopped happening and now it's back again. Currently experiencing the problem and I can see basic things but it's still obviously discolourated.
Resolution is 1366x768 with 60p hz refresh rate.