Windows 10: Which of these 4K TVs is the best deal I am looking to use it as a computer Monitor??

I currently have a 39.5" 720p Insignia I got 2 years ago I am using it mainly as a computer monitor which of these TVs is the deal deal?? I am looking to upgrade to 4K 40" to 50" I have downloaded a good amount of 4k videos I can not even view them at close to full quality currently. LG 43" #43UK6090PUA $250, Samsung 43" #UN43NU6900FXZA $280, LG 43" #43UM7300PUA $300, LG 49" #49UM6900PUA $320, VIZIO 43" #V435-G0 $280, Philips 43" #43PFL5604/F7 $250, Philips 50" #50PFL5604/F7 $270

 

No display on monitor when TV set as primary display

Issue solved

Removed DVI/HDMI cable from computer and monitor

Step 1: Check if the VGA monitor cable is defective.

1. Turn off computer
   
2. Connect the monitor VGA cable from the monitor to the VGA port on the computer
   
3. Turn on computer, VGA monitor cable is good.
   
   Step 2: Tun off computer
   

1. Connect HDMI Cable to HDMI port and TV
   
2. Turn on computer and TV, there is no monitor black screen
   
3. Click on the Windows logo, select the Settings icon , and then select
   
   System. Under Display there are two squares, labeled 1 and 2
   
   D Click on Advanced Display Settings:
   
   Display information: Display 1- Monitor Display 2 -TV
   
   E Right-click the Speakers icon in
   the taskbar, select Sound, click on Playback devices,
   
   
   a s tv screen with my brand shows
   AMD High Definition Audio Device ready.
   
   F. Problem solved
   
   
   
   Cause of the problem: Defective VGA port on the Syba VGA HD15+ 3.5 Audio to HDMI converter
   

 

Font is "rough looking" on 4K monitor

I have Windows 10. Font, especially on Google, is very rough looking, unsmooth. 4K monitor. How do I fix this?

[Moved from: Windows / Windows 10 / Desktop, Start, & personalization / General]

 

Windows wont display 4k and HDR simultaneously.

I recently got a 4k HDR tv (Samsung UE43NU7100). I connect my PC with a normal HD monitor and the 4k HDR tv. When turning on HDR on my tv the resolution of the 4k tv (3840x2160) gets set back to normal HD (1920x1080) in windows settings. Windows is completely
updated, my AMD Radeon R9 390 8gb graphics card is up to date and supports and displays in 4k when HDR is off. My Xbox one X displays both 4k and HDR perfectly simultaneously. I use a high speed HDMI 2.0 cable. I have no idea why my pc does this and cant find
anything about windows not being able to do 4k and HDR at the same time. It also doesn't work if I only connect the tv instead of the monitor and tv. Any suggestion?