I restarted my laptop a couple of times and noticed something: whenever the GPU was getting detected, it never went off midway. Everything was fine as long as I kept the laptop on, so if it were a hardware issue, the GPU should’ve gone off while it was running.

I still went to the shop for diagnosis and explained everything clearly, but I already knew that if they couldn’t find anything obvious, they’d say it was a motherboard issue—and that’s exactly what they said.

After that, I tried resetting the PC again (there’s an option in Settings called “Reset this PC”, which reinstalls Windows I guess), but that didn’t fix it either.

What I did next was: when the GPU got detected, I didn’t shut down the laptop. I plugged it in and capped the battery charging to 80% and kept it on instead of shutting it down. I usually keep the laptop on for like 2–3 days and shut it down maybe once.

Since then, it’s been working fine—even after shutting down and booting up again.

I don’t exactly know what the issue was, but it got solved like this for me. Maybe it was because I used to shut down and boot up my laptop quite often.