4 ms·

DisplayPort to HDMI converters trivially solve that. Let the TV consume HDMI all it wants while still "just" outputting DP from the computer.

krs_ 3y ago
Are there DP -> HDMI 2.1 adapters available that supports 4k120hz with VRR and HDR? I've not seen any although I've not looked too hard.
- radicality 3y ago
  I think these ones from CableMatters do. https://www.cablematters.com/Blog/HDMI/how-to-get-4k120hz-with-mac https://www.cablematters.com/Blog/HDMI/how-to-get-4k120hz-wi... It’s powered by this chipset afaik which supports vrr and hdr. https://www.connect.synaptics.com/spyder https://www.connect.synaptics.com/spyder
  - krs_ 3y ago
    Clicking through to the product page it claims that VRR/Gsync is not supported with that adapter unfortunately. It is also a USB-C to HDMI adapter, not a pure DP adapter. I think only the 20-series of Nvidia GPUs and maybe some of the 5000-series AMD GPUs have DP capable USB-C outputs. And apparently the M1/M2 Macs that the first article is about. CableMatters is a good brand so if anyone could do it it'd be them, but it appears it's not quite there yet. Maybe when DP 2.0 becomes more common on GPUs it'll be a solved issue.
    - simoncion 3y ago
      > I think only the 20-series of Nvidia GPUs and maybe some of the 5000-series AMD GPUs have DP capable USB-C outputs. Based on my experience, this doesn't matter. I have a video card with no USB-C outputs. I go from full-sized DisplayPort to a female <-> female DisplayPort coupler, to this [0] bidirectional DP <-> USB-C cable, which plugs into my monitor. It works great and even does 4K 60FPS uncompressed HDR no problem. I see no reason why you'd be unable to then slap on a female <-> female USB-C coupler and then that USB-C -> HDMI adapter. (There's also no reason you couldn't cut out the first DP cable and coupler and plug the DP <-> USB-C cable directly into the video card. I just have very long (fiber-optic) DP cables that the second cable plugs into.) [0] https://www.monoprice.com/product?p_id=39240 https://www.monoprice.com/product?p_id=39240
harkinian 3y ago
I'd rather not introduce another thing that can go wrong. Video outputs are already picky enough.
- Chabsff 3y ago
  It's obviously far from ideal. I was just pointing out that "welp, proprietary drivers it is" is not the only way forward.

krs_ 3y ago

Are there DP -> HDMI 2.1 adapters available that supports 4k120hz with VRR and HDR? I've not seen any although I've not looked too hard.

radicality 3y ago
I think these ones from CableMatters do. https://www.cablematters.com/Blog/HDMI/how-to-get-4k120hz-with-mac https://www.cablematters.com/Blog/HDMI/how-to-get-4k120hz-wi... It’s powered by this chipset afaik which supports vrr and hdr. https://www.connect.synaptics.com/spyder https://www.connect.synaptics.com/spyder
- krs_ 3y ago
  Clicking through to the product page it claims that VRR/Gsync is not supported with that adapter unfortunately. It is also a USB-C to HDMI adapter, not a pure DP adapter. I think only the 20-series of Nvidia GPUs and maybe some of the 5000-series AMD GPUs have DP capable USB-C outputs. And apparently the M1/M2 Macs that the first article is about. CableMatters is a good brand so if anyone could do it it'd be them, but it appears it's not quite there yet. Maybe when DP 2.0 becomes more common on GPUs it'll be a solved issue.
  - simoncion 3y ago
    > I think only the 20-series of Nvidia GPUs and maybe some of the 5000-series AMD GPUs have DP capable USB-C outputs. Based on my experience, this doesn't matter. I have a video card with no USB-C outputs. I go from full-sized DisplayPort to a female <-> female DisplayPort coupler, to this [0] bidirectional DP <-> USB-C cable, which plugs into my monitor. It works great and even does 4K 60FPS uncompressed HDR no problem. I see no reason why you'd be unable to then slap on a female <-> female USB-C coupler and then that USB-C -> HDMI adapter. (There's also no reason you couldn't cut out the first DP cable and coupler and plug the DP <-> USB-C cable directly into the video card. I just have very long (fiber-optic) DP cables that the second cable plugs into.) [0] https://www.monoprice.com/product?p_id=39240 https://www.monoprice.com/product?p_id=39240

harkinian 3y ago

I'd rather not introduce another thing that can go wrong. Video outputs are already picky enough.

Chabsff 3y ago
It's obviously far from ideal. I was just pointing out that "welp, proprietary drivers it is" is not the only way forward.