Tcl tv to z390 taichi ultimate hdmi limited to 60 hz instead of 120?

[Snowarch]

I know my tv uses hdmi 2.0, and i looked it up. My pc uses hdmi 1.4. I prefir the 1080p resolution due to tiny terminal letters being an issue. Max i can get using xrandr is 

 

1080×1920 60. Just did research and it says that 1.4 supports 1080p at 120hz. I get screen taring a lot(nvidia prime setup with a p104) so im hoping the high refresh will kill this problem. Is this a monitor or ubuntu server/lxdm issue? I think im using the wrong cable or some thing else. 

[-rascal-]

3 minutes ago, Snowarch said:

I know my tv uses hdmi 2.0, and i looked it up. My pc uses hdmi 1.4. I prefir the 1080p resolution due to tiny terminal letters being an issue. Max i can get using xrandr is 

 

1080×1920 60. Just did research and it says that 1.4 supports 1080p at 120hz. I get screen taring a lot(nvidia prime setup with a p104) so im hoping the high refresh will kill this problem. Is this a monitor or ubuntu server/lxdm issue? I think im using the wrong cable or some thing else. 

 

The HDMI 1.4 applies to the motherboard = iGPU = i7-8086K.

The output port on your GPU is completely separate from the output ports on the motherboard.

 

The Intel UHD 630 is limited to 4K @ 30Hz through HDMI = 6.2Gb/s.

4K 60Hz = 12.5Gb/s, which HDMI 1.4 cannot do, BUT DisplayPort 1.2 can

1080p 120Hz requires ~6.50 Gb/s of bandwidth, which is possible for HDMI 1.4 (~8 Gb/s max).

 

Tearing could be software (i.e. driver) issue, but it can also be the TV.

TV's usually have higher latency, higher input lag, and slower response time compared do a monitor.

https://www.asrock.com/mb/Intel/Z390 Taichi Ultimate/index.asp#Specification

 

https://www.intel.ca/content/www/ca/en/products/sku/148263/intel-core-i78086k-processor-12m-cache-up-to-5-00-ghz/specifications.html

[Snowarch]

4 hours ago, -rascal- said:

 

The HDMI 1.4 applies to the motherboard = iGPU = i7-8086K.

The output port on your GPU is completely separate from the output ports on the motherboard.

 

The Intel UHD 630 is limited to 4K @ 30Hz through HDMI = 6.2Gb/s.

4K 60Hz = 12.5Gb/s, which HDMI 1.4 cannot do, BUT DisplayPort 1.2 can

1080p 120Hz requires ~6.50 Gb/s of bandwidth, which is possible for HDMI 1.4 (~8 Gb/s max).

 

Tearing could be software (i.e. driver) issue, but it can also be the TV.

TV's usually have higher latency, higher input lag, and slower response time compared do a monitor.

https://www.asrock.com/mb/Intel/Z390 Taichi Ultimate/index.asp#Specification

 

https://www.intel.ca/content/www/ca/en/products/sku/148263/intel-core-i78086k-processor-12m-cache-up-to-5-00-ghz/specifications.html

I use my motherboard's igpu and hdmi port. I would like 1080p 120hz. Sorry for the confusion. No matter what i do, my xrandr only reports 60 as max fps. For 1080p. Given most games run at 60fps, i know 4k is out of the question.