Question Screen dimming after 30- 40 mins of use

Mar 31, 2026
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I use ASUS TP550LA, core i5, windows 10 with 12GB RAM. I am experiencing a weird issue. If I use my laptop daily, it runs fine for 30-40 mins before the screen light goes off (even though the laptop stays on). Kinda like 99% dim screen, so pointing a flashlight at the screen shows everything is there (like the apps, youtube video running, browsers etc.).

If I do not use the laptop for 3-4 days, then it runs fine for 3-5 hours straight after turning it on. Then the same issue again if I start the laptop the next day.



Anyway what might be the issue with my laptop? Is it a graphics card issue or something else? You think it's a easy fix or need any parts replaced?
 
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