Windows 10: Desktop Windows Manager - High GPU, Power and CPU usage when connected to a 4K UHD Television

• Windows 10 - ver. 1809
• ASUS ROG Strix Scar II - model "GL704GW-DS76"
• NVIDIA GeForce - RTX 2070 8GB
• 32 Gigs of RAM
• Vizio 4K UDH TV - model D58u-D3

Brand new computer and when I connect the it to my Vizio TV the GPU(around 49%) and CPU(13.5%) spike and the power usage spikes to "very high" when I move the mouse. It is even worse when I am playing a game which reeks absolute havoc on my FPS.


After doing some elimination steps here is what I found. It only happens when the HDMI cable is plugged in to the computer and the other end is connected to an external monitor source. Once I unplug the HDMI from the computer it stops spiking. If I leave the HDMI plugged into computer and disconnect it from the external monitor it stops spiking.

So basically as it sits Windows 10 will not allow me to connect a large monitor and play games...


Is this normal? My guess is it's not so how can I fix this?


I have tried ever trick in the book aside from a reinstall (disk cleanup, clean boot, etc).


So again it only happens when an external monitor is connected via HDMI.


Any help is greatly appreciated,

Kevin

:)

 

how do i get 4k uhd hdr to work in windows 10 ver 1803 windows will not recognize 4k uhd hdr 2160p monitors or 4k uhd hdr nvidia geforce gpu

how do i get 4k uhd hdr to work in windows 10 ver 1803 windows will not recognize 4k uhd hdr 2160p monitors or 4k uhd hdr nvidia geforce gpu

according to the internet windows 10 is suppose to feature uhd hdr in 4k.. windows has never been able to project a desktop display equal to 4k uhd

i have all these COOL TOYS but have NO IDEA how to WORK it ??..

i have a 82" samsung 4k uhd hdr 2160P TV as a computer monitor/ tv / gaming in 4k.. cannot get windows 10 pro ver 1803 to play view gaming movies

stream in 4k. i can watch 4k music videos 4k movies in hdr . i seem to be very UN knowledgeable about how to get all these COOL TOYS to work

like being able to project 4k uhd hdr on a windows desktop. any GEEKS who want to share insider knowledge on how to do this.

samsung 82" samsung 4k uhd hdr 2160P TV

intel I7-7820X

GIGABYTE X299 UD4 REV 1.0 BIOS F4

NVIDIA GEFORCE GTX1080TI 8GB

CREATIVE SOUNDBLASTER ZX

CORSAIR VENGENANCE 32GB RGB 2133 DDR4

WESTERN DIGITAL 1TB 7200RPM

WESTERN DIGITAL 4TB

WESTERN DIGITAL 8TB

WESTERN DIGITAL 8TB

WESTERN DIGITAL 8TB

 

Task Manager High CPU Usage

I have the same problem myself with it only happens when I scroll through task manager and open and close it. I don't know this for sure but the reason this probably happens is that you may have a lot of processes running and task manager is using a lot
of the CPU to process the usage of each program.

What I have done is disable data that I don't need to see like network usage and GPU usage and it drops the CPU usage a bit. I have also enabled everything and scrolled up and down on it and task manager uses almost twice as much.

I would suggest disabling everything but CPU, disk, and RAM, (I would not suggest having GPU on because it is almost always at 99% unless you have FPS limits).

 

Desktop Windows Manager (dwm.exe) load GPU too much.

Hi Artur,

In order to help you with the issue about the Desktop Windows Manager (dwm.exe), kindly refer to the troubleshooting suggestions posted by Julie Ram dated January 16, 2018. Click the link below to access her posted troubleshooting steps which have been helpful
to several Community members. This may also be the solution that you are looking for to resolve the issue at hand.

Desktop Window Manager (dwm.exe) using high usage gpu?


Let us know the result for us to help you further.

Regards.