AIDA64 v8.20.8126 beta: SmartCool 2.1" LCD black after sleep/wake, hangs until USB replug

[PCLover420]

Hello,

I recently purchased a 2.1" LCD display from SmartCool that is designed to work with AIDA64.

The unit works correctly when it starts properly, but I am having a recurring issue:

• After I put my computer to sleep and wake it up, the LCD powers on but remains on a black screen.

• When I try to launch AIDA64 afterward to troubleshoot, AIDA64 stops responding / crashes.

Current workaround (temporary)

The only way I can get it working again is to:

1. Close AIDA64

2. Unplug the LCD display from the internal USB header

3. Reopen AIDA64

4. Plug the LCD back in

After that, the display starts working again.

My setup

• Windows 11

• AIDA64 v8.20.8126 beta

• LCD connected to internal USB header

• Motherboard: ASRock X470 Fatal1ty (if needed, I can provide exact model variant)

What I’ve already tried (no fix)

I have already tried the common troubleshooting steps suggested in forums and discussions, including:

• Closing any other LCD control software so only AIDA64 is running

• Disabling USB selective suspend in Windows power settings

• Disabling “Allow the computer to turn off this device to save power” for USB hubs in Device Manager

• Disabling Fast Startup in Windows

• Testing different USB header/port behavior (where possible)

• Reinstalling/relaunching AIDA64

• Using the beta version of AIDA64

I’ve seen that others have reported similar issues, but I haven’t found a confirmed fix yet.

If anyone has a solution (or specific settings in AIDA64 / BIOS / USB configuration that fixed this), I’d appreciate the help.

Thank you.

[PCLover420]

Ok so after further testing, I think its the device itself or my mother board header. The device wont even come back on after sleep on the default preloaded videos. Going to try using a splitter into a USB port see if that works. 

So there is nothing wrong from a software perspective. Unless anyone thins otherwise or has suggestions. 

[Fiery]

On 2/24/2026 at 5:49 AM, PCLover420 said:

Ok so after further testing, I think its the device itself or my mother board header. The device wont even come back on after sleep on the default preloaded videos. Going to try using a splitter into a USB port see if that works. 

So there is nothing wrong from a software perspective. Unless anyone thins otherwise or has suggestions. 

Thank you for clarifying the issue.  AIDA64 indeed has special quirks for several LCD interfaces (incl. SmartCool) to make sure the interaction with the display device works properly even after a sleep-resume cycle.