Laptop with external monitor can cause the system to slow down very badly

Update 6: Swapping to Extended then back to Second Only seems to be a way to fix the problem. The problem also cause webpages to fail to load (on Firefox browser and Edge as well)

Update 7: Update 6 wasn't the consistent solution. The only solution I've found so far which seems to be working the best is just unplug and replug. It still takes a few times of doing that for the system to work normally. The problem has also been coming back more frequently and in fact Firefox crashed once when I was writing this.

Update 8: To prove it's not laptop issue, I've been using only laptop screen for 12h now and comparing with 12h of external monitor the problem doesn't appear at all

I tried it, I even switched to a new HDMI cable that supports 4K and it worked for a while then instantly came back. Once the problem came back I'm soft locked and I'm forced to unplug my HDMI for the system to go back to normal so I can change it again

Hello Tuan Minh Phan,

Good to see you in Microsoft Community.

Firstly, could you let me know the specific system version? Please check it (Win + R key, and type "winver", press Enter), and only send the relevant information without PII in the next reply.

You can disab le the high performance grap hics in Device Manager ("Win" + "X" > "Device Manager" > "Display adapters", double click to expand the entry you will see all your display adapters, then right click GeForce 3050 Ti > "Disable device"), then check if the apps work fine.

If these apps no longer freeze, you need to update the high performance graphics card driver. Visit Official Drivers | NVIDIA to download the driver.

Disclaimer*: This is a non-Microsoft website. The page appears to be providing accurate and safe information. Watch out for ads on the site that may advertise products frequently classified as PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.*

If the problem persists, you may Perform a clean boot, this is a mode of disabling third-party services or software, which could help rule out the interference of these elements.

Disclaimer*: A “clean boot” starts Windows with a minimal set of drivers and startup programs. It helps to determine whether a background program is interfering with your game or program and to isolate the cause of a problem.*

These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by-step so that it will help you get you back on track.

If anything is unclear, please do not hesitate to let me know.

Best Regards, Mosken_L - MSFT | Microsoft Community Support Specialist

Update: Seems like the problem only happens after a shutdown aka system would only slow down if you shut it down for the night and then boot it up the next day. The problem still persists after updating NVIDIA driver.

Update 2: I did a clean boot as well and still can't detect any problems.

Furthermore, it seems like any Windows UWP apps (like Settings for example) or any built in Windows apps (Resource Monitor, Device Manager, Task Manager, etc.) are affected by this.

Update 3: As soon as I unplug the HDMI cable all queued app that couldn't open will instantly be launched. And if somehow Task Manager managed to open with 2nd monitor only, then the graphs will run for half the way and freeze for the whole time (like this image) with a huge spike at first

Update 4: It only took me about 7 times of plug and unplug for the system to work normally, and the graph spike above always happen when Task Manager is launched

Update 5: Problem came back after I let the laptop hibernate, and when the problem still persists, game that would need graphic processing (even low-end games like osu! also suffer from frame drop)

Hello Tuan Minh Phan,

Good to see you in Microsoft Community.

Firstly, could you let me know the specific system version? Please check it (Win + R key, and type "winver", press Enter), and only send the relevant information without PII in the next reply.

You can disab le the high performance grap hics in Device Manager ("Win" + "X" > "Device Manager" > "Display adapters", double click to expand the entry you will see all your display adapters, then right click GeForce 3050 Ti > "Disable device"), then check if the apps work fine.

If these apps no longer freeze, you need to update the high performance graphics card driver. Visit Official Drivers | NVIDIA to download the driver.

Disclaimer*: This is a non-Microsoft website. The page appears to be providing accurate and safe information. Watch out for ads on the site that may advertise products frequently classified as PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.*

If the problem persists, you may Perform a clean boot, this is a mode of disabling third-party services or software, which could help rule out the interference of these elements.

Disclaimer*: A “clean boot” starts Windows with a minimal set of drivers and startup programs. It helps to determine whether a background program is interfering with your game or program and to isolate the cause of a problem.*

These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by-step so that it will help you get you back on track.

If anything is unclear, please do not hesitate to let me know.

Best Regards, Mosken_L - MSFT | Microsoft Community Support Specialist

Hi, my system version is Windows 11 22H2, build 22621.819. I'm updating the driver now and will post a reply if it worked.