Windows 10: Laptop freezes when I turn on USB C monitor

Windows 11, Asus laptop, Ryzen 6800u. AMD drivers are up to date.It's a USB C monitor with 65w power delivery, I've been using it without issue for a few weeks now to charge my laptop and as a second screen.But in the last couple of days, when I turn the monitor on my laptop freezes. This happens perhaps 4 times out of 5, but not every time.

:)

 

USB-C connected Monitor become inactive after HDR is turned on in Windows 10

This very similar question has actually been asked here, however the answer with a whole bunch of links didn't help.

I have one HP laptop connecting to the two monitors below:

• LG ULTRAFINE which supports HDR - connect using USB-C to USB-C
  
• LG monitor which does not support HDR - connect using USB-C to HDMI
  

The laptop itself also does not support HDR.

Both monitors connected as extended, not duplicated, all was working fine.

Then today In windows 10 Display Settings, I noticed the option to turn on HDR, so I turned it on.

Once turned on, the LG ULTRAFINE immediately blacked out. and the HDR on/off setting in Windows display settings disappeared.

I can now still see three monitors in the 'Rearrange your displays' area. However, I can only duplicate output to the ULTRAFINE monitor.

Trying to Extend to the ULTRAFINE, it goes blank again.

Trying to show only on the ULTRAFINE, it automatically set itself to 'Disconnect this display'.

Also tried to use the short-cut keys Windows+Alt+B to toggle HDR which didn't help.

Then I connected the laptop to the ULTRAFINE with a HDMI cable, the monitor can then be extended to again, even with HDR turned on.

So it looks like although Windows was able to detect the ULTRAFINE can support HDR while the monitor was connected through USB-C, HDR isn't really supported by USB-C connection. So once HDR is turned on, the monitor blacks out. BTW, the USB-C cable came with the ULTRAFINE.

Now the question is: How can I reverse the change, so that I can extend to the ULTRAFINE with USB-C again with HDR off?

Please do not just drop a bunch of links in here, as most of the links people drops in their replies really isn't related to the question asked. I'm looking for peoople who really understand what the problem is and how to resolve it. For example, if you know how I can tell windows don't try to send HDR to the USB-C connection any more, without using the HDR switch in Display Settings, that would be really great!

Thank you!

 

Laptop freeze

It can be many things.
Is it a i5 or i7?
On a 5yrs old laptop it's probably overheat due to a dust clogged heat sink.
Do you have a hardware monitor?
My suggestion is open hardware monitor
Download and extract to C:\Program Files (x86)\HardwareMonitor and then run openhardwaremonitor.exe





Very good

 

Laptop freeze

Hi guys, i can't do what both of you has suggested for this laptop cause every time it freeze in widows
it will not be able to reload windows and i have to do a clean install. I already repeated this cycle few times.
Anyway thanks both of you for your suggestions.