Intermittent display glitches (moving horizontal lines)
My display started to glitch recently.
Mostly horizontal lines moving up and down (almost like scan lines when you record a cathode ray screen).
The horizontal lines often show a previous version of what was visible on screen. I.e. when I lock the screen the glitchy lines show the previous desktop for many seconds.
It happens 90% of the time, but sometimes it still works flawlessly.
And the display switches between "working good" and "glitchy" without me touching anything every few minutes.
External monitor with mirroring works as well.
What is broken here?
Update (03/12/24)
It's been working for two weeks now without any problems without me doing anything. I've had the horizontal lines appear once all of a sudden. I turned the screen off by locking it, waited 10 seconds, turned the screen back on. Slight brightness flicker for a few seconds, then everything worked flawlessly again.
Even when horizontal lines were flickering a lot two weeks ago, a brief "screen off, wait 10 seconds, screen on" maneuver brought back a normally working display at least for a few seconds.
For completeness: This is the green color shift that happens from time to time and slowly vanishes over the course of ~20 mins.
To be honest, this smells to me like a broken capacitor that's coming back to life from time to time.
Anyways, I got an Apple Silicon Macbook so in case it breaks again, I am all set.
Bu iyi bir soru mu?