Dual monitor output for Dex

[Fedorasaurus]

Does anyone know of Dex support for dual monitor output?

[Fatwa]

There is none at this point that I know of. Thatbwould be a heavy load for the chipset... as it would be concurrently running three displays

[flarezt]

Hi, is this planned to be added for galaxy S22 series?

Hi, I'm owner of Galaxy s10e with latest Android and OneUI updates. Samsung Dex gives very nice functionality to use 1 external monitor. But, when I connect to it two monitors the video output is mirrored to the second one. It would be nice to have an option to extend video output to the second monitor instead of just mirroring to it. Is there any plan to add such a functionality?

I'm connecting two monitors using usb type-c dock station.

[chris814m]

the processor load really shouldn't be an issue.  It is capable of displaying 4k on the phone screen.  If they give you an option to make each display only 1080, that is 1/4th the image each.  So then for 3 screens, the actual image processing is 3/4 of just the phone image, and account for 1/4 of the load being used to manage the three segregated images.  Even then, it should have more capability, as it currently displays 4k on the phone and 1080 on the external screen.

Even if there was still a limit after all of that, it would still be seen as a very effective feature to down grade all three screens to only 720, if it allowed two external "extended" monitors.

So hardware should not be the excuse for a limit, it is only their willingness to make the software.

[Georgine]

Hi, As of now the dex support for dual monitor output is not available.

[yashodhanl]

Ok, but will it be available in the future? Is Samsung having any such plans??

[Fedorasaurus]

Okay. Thanks.

[Losingthewires]

While DeX itself doesn't support 2 external displays - it is possible to use 2 external displays with a DeX enabled smartphone and some apps then allow both displays to be used.

Here is VMware Horizon, for example, on 2 external monitors from a Note 9 a Windows 11 desktop is running on VMware Horizon and spanning both displays for a true dual monitor setup.

Here is a portable version using a lapdock- note Outlook is on one display and Word on the other.

[flarezt]

Hi, this is actually nice suggestion. Thank you.

But the actual point is to find out if there is such a possibility on a hardware level with more powerful CPUs.

[chris814m]

If it is possible to do it with VMware, then it is possible on the current hardware.  The image processing for the screens still has to be done on the phone even with VMware.  This means that the limitation is not the hardware, only the android/dex software.  Regardless if the processor was really the issue, they could still make it happen by simply downgrading the image resolution to 720.  There would be many happy users to take degreaded resolution as a trade for two extended external monitors.  For me personally, it would be close to a replacement for my PC, and with as many work spaces are coming setup with usb-c hubs and dual monitors, I could use my phone as my PC all over the place.