Strange screen behavior, a couple months after a repair--suggestions?

I have an aging HP Pavilion 15-ab laptop that has served me very well over the past 7 years. Finally the cooling fan failed and thankfully the HP built-in firmware was able to alert of the problem and refuse to reboot to protect the hardware. I bought a replacement cooling fan as well as an entire top bezel with keyboard--used parts in excellent shape. All went well. Laptop had been working great for 2 months. Then this strange screen behavior started.

Basically it's this: The screen freezes. And then a "fog" of white pixelation rises up from the lower edge of the screen. When I press on the bezel, it goes away. It can also go away by repositioning the screen. I am very sure I didn't damage the screen when I made my repair stated above. Also, I'm quite certain the connector is attached properly, because if it wasn't the screen wouldn't function at all. It's also connected inside the chassis. When this weird "fog" appears, it's the pressing on the bezel of the screen itself that fixes it, far away from the connector.

I wouldn't care too much about this problem if it happened only once in a while. It's an old laptop and I don't expect it to be 100% perfect. However, over time... the past month, the problem has gotten a bit worse. Now, when I awaken the computer from sleep, I'm guaranteed the "fog" will be rising up the screen, frozen. I have to press on the bezel and reposition the screen a few times to finally get it to stop. Once it stops, everything is great. The screen has no weird artifacts. Video display is just fine. And yes, a cold boot doesn't make this problem go away.

It seems that I have 2 choices: either try to fix this myself or just replace the whole screen. I'm pretty good about DIY fixes. I'm wondering if just by the matter of age, wear, and tear, that maybe a ribbon cable or some other connection has loosened inside the screen component. Perhaps by disassembling it, I can make a fix, maybe something even as simple as applying some kapton tape to secure whatever loose connection there may be.

The other consideration is that maybe there's some kind of component inside the screen that has a limited lifespan and that this behavior is an indication of it nearing EOL. Of course, not a DIY fix of the screen component. Replacement required. The thing is, forking out $100 USD for a new screen seems a bit foolhardy, given that just a couple hundred more could buy a used laptop in fully functioning condition, more modern processor, perhaps even USB-C connectors. I'm hoping there is a DIY fix possible so I can eek out another year or two of usable work on this laptop before having to ditch it.

Sorry for the long ramble. Any thoughts from folks here familiar with this kind of issue? Thanks!

Definitely not graphics card. The physical pressing of the bezel restores function. Resolution & all graphics settings haven't changed for over a year...

When the freeze occurs,press ---WIN+CTRL+SHIFT+B ---which resets the Graphic Driver.The screen momentarily goes black.
Check Reliability History for entries covering the freezing episodes and if there are any,the ---view tech details --- should give searchable information.
Also look in ---dxdiag ---and in the Display page note the Driver version in use and visit the maker's site only and download that version,or later if available.
If possible,use Display Driver Uninstaller [DDU] to uninstall.If not then go through Device Manager>Display Adapter to uninstall,then install the new one.
The Display driver is a frequent cause of freezing.

joeandmarg0 said:

When the freeze occurs,press ---WIN+CTRL+SHIFT+B ---which resets the Graphic Driver.The screen momentarily goes black.
Check Reliability History for entries covering the freezing episodes and if there are any,the ---view tech details --- should give searchable information.
Also look in ---dxdiag ---and in the Display page note the Driver version in use and visit the maker's site only and download that version,or later if available.
If possible,use Display Driver Uninstaller [DDU] to uninstall.If not then go through Device Manager>Display Adapter to uninstall,then install the new one.
The Display driver is a frequent cause of freezing.

Thanks for the suggestion. I did see that brief blackout pressing that key combination, but it doesn't rectify the problem. I've taken a video of it--just have to get a chance to upload it, demonstrating how it takes place. In any event, I find that as the laptop warms up the problem rarely happens. I wonder if this is a manifestation of some internal separation of a ribbon connector that simply needs to be reseated.