2K 144HZ

[dinardofurioso]

Hello, I have a 2k 144hz LG PC monitor. By connecting the Steam Deck to its Dock and to a display port 1.4 the only resolution displayed is 2k 120hz (and not 2k 144hz) while if I directly connect a display port 1.4 to the steam deck (without going through the dock) the displayed resolution is 2k 144hz. Is this a problem with my dock? I have seen on the internet some videos in which even through the dock it is possible to reach the 2k 144hz resolution. If anyone can help me I would be grateful. Thank you.

[Pharos]

Can you send a link to the videos? On the dock page it states that 1440p monitors can only allow 120hz when used with the steam deck dock

[Nick]

I can confirm that 1440p@144Hz is an option for me when I use my monitor through HDMI. Although there seems to be an issue (at least for me) in Gaming mode where the in-game framerates maxes out at half the selected refresh rate if the refresh rate you set is higher than 100Hz.
It works fine in desktop mode though, so the Dock does seem to support 144Hz, despite the official page listing 120Hz as the max.

I've been having an issue where DisplayPort only allows me to select up to 60Hz, so I can't comment on that.

[Pharos]

What kind of monitor do you have Nick? I ask because I'm looking to buy a new one during Black Friday and I definitely need one that's reliable/compatible with the steam deck. I've heard in a few videos that you'll have to play games in desktop mode in order to get 1440p 120hz. It's also interesting to here that you guys are both having trouble with the display ports but have opposing problems. From what I can see in most of the vids I've watched I don't believe that you need the official dock to get a good hz such as 120hz. I think it ways heavily on the monitor your using.

[Nick]

I use the MSI MAG274QRF-QD. Technically, you don't need the official Dock for 120Hz, indeed, but I'm not sure whether the JSAUX docks support 1440p@120. The page for their new HB0702 dock only states 2K120Hz for HDMI, which may not include 1440p. The page doesn't list it explicitly. So currently, there might not be an unofficial dock that supports it

[Minneyar]

For what it's worth, I have a LG 27GL83A-B monitor and the upgraded JSAUX dock (HB0603), and it seems to only support 2560x1440 @ 60 Hz (ignore a previous version of this post if you had seen one, I didn't realize I was actually plugged into the wrong device).

I also have a Kensington SD5700T dock (not Deck-specific, just a generic Thunderbolt dock), and 2560x1440 @ 144 Hz works fine over DisplayPort through it.

[Pharos]

So Nick it looks like your monitor supports 1440p 165hz and you were able to get 144hz. I guess because Nick has the extra leeway 165hz and dina only has a max of 144hz on their monitor, Nick is able to achieve 144hz. Sometimes monitors cannot go to the max hz thats specified due to settings and what not so I'd definitely try troubleshooting some of those issues. When it comes to Minneyear's dock problem, I'm convinced your not getting the 144hz with the JSAUX dock because it doesn't have a display port while your Kensington does :)

[jazztickets]

I am able to use the steam deck dock with 2K@144hz in both gaming/desktop mode, but only when the wall charger is disconnected. Once i plug the wall charger into the dock, i can only get 60hz to work. Very strange.

(120hz isn't an option for the dell S2719DGF so i can't test that)

EDIT: it appears to be an issue with display port only. HDMI 2.0 works fine.

[Pharos]

So jazztickets, their are two common types of display ports as well as cables which are 1.2 and 1.4. The Steam Dock has a 1.4 so I would highly recommend using a 1.4 dp cable along with it. I don't know much about display ports but if you have a problem with yours this might help.
Also your monitor will also specify whether it uses dp 1.2 or 1.4. Not sure how much of a difference it makes though. Good luck!

[Squienigma]

After reading all your comments, it seems I have an interesting case to share. The first dock I got for my Deck was the Wavlink 13-in-1, and my monitor is a 1440p 165Hz ViewSonic Elite. Desktop mode supports 144Hz and 165Hz, but in gaming mode I can't go beyond 144Hz. There is also an issue with a brief loss of video signal that gives me a momentary black screen at unpredictable intervals, not a ton but certainly enough to be game-breaking (tested the dock with TV and same problem exists).

I recently got the official dock from Valve and was sad to discover that it seems to only support 120Hz all around.. :( But it works consistently and supports a refresh rate far sufficient enough to cover just about any game you're going to play.