Signal keeps getting lost, wonder if replacing driver board would help

Ever since about a year after I bought this monitor (once the warranty expired), it has been very temperamental. Sometimes it refuses to see the HDMI or DP signal (it happens on both) for an hour or 2 (keeps telling me searching for signal and going into standby mode) and then suddenly starts working again.

The cables I use work perfectly fine with my 4k TV, so it's unlikely to be the cables. This issue also happens randomly with every computer, game console and devices I have (and those same devices work perfectly fine with my TV). At this point, I'm wondering if it's one of:

• Driver board
• Power supply

There's also some white/pink tinge that starts appearing on the side but it's usually after using it for a couple of hours. If I turn it off for a couple of days, this completely disappears.

I've recently noticed that it's not that hard to open and that the driver board is available for around 50 usd so I'm wondering if it might be worth trying to fix.

So to any experts, what could cause those random issues with finding signal? Is it usually due to the driver board? Would replacing it work?