I got a very weird problem.
My computer is setup like this:
My graphic card is connected to - Main monitor (4K) through DisplayPort, secondary display (1080) through HDMI.
TV (1080) through HDMI to onbard intel graphic card (cause gfx card has no more hdmi ports)
Now, as long as the main monitor is on, everything is smooth on the TV.
But if i turn it off, it will play at like 15fps and be unwatchable.
I tried everything i could think of. I even connected TV to nvidia card, and the issue persisted.
EDIT: I just realized this only happens when playing video through through Chrome!
I do have hardware acceleration on.
So maybe once the main monitor is turned off, it has problems using the gfx card to play video?
I have two monitors and have a similar problem, but on a single card.
What you can try is switching the output to “second screen only”, WIN_KEY+P and selecting “Second screen only” to see if it works like that. You can turn off the monitor after switching the output.
Also, try and make the TV your main display, there is some checkbox in display settings and see if that helps. It’s a pain in the ass as your start menu will be on the TV but at least you can narrow down the issue.
I have been messing around with refresh rate since I thought this might be the cause.
When it’s set to the “proper” refresh rate (60i Hz) it has the low framerate issue.
If I set it lower (30p) it plays somewhat smoother, but the picture quality is horrible.
When the main monitor is active, the refresh is at 60i Hz.
another weird issue with the intel graphic card control panel application:
It shows that the TV resolution is set to 4k (which it is not) and when I try to change it to 1920x1080 and hit apply, it goes back to show 4k.
while in the windows settings it shows 1080:
I wonder if the intel graphics is taking the nVidia settings as the set defaults. You said your main monitor is 4k right and plugged into the nVidia card? Can you set that one to 1080p and just see what happens?
I just realized this only happens when playing video through through Chrome!
I do have hardware acceleration on.
So maybe once the main monitor is turned off, it has problems using the gfx card to play video?
I tried watching netflix through Edge and it worked just fine.
Now I’m unsure what happened to Chrome.