how to tell if a graphics card supports 4:4:4 for Remote Desktop Connection

andrewsc

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For 4 years, I used a laptop to connect remotely to my desktop at the workplace. At home, I attached a large display to my laptop which has a graphics card. The text was a bit blurred, but still readable. However, positioning the mouse for editing text was rather difficult, so working from home didn't have the same productivity as working from office. I did mostly text editing, and it was quite cumbersome.

I recently got a desktop PC, as surplus hardware from the workplace. It is 5 year old, but has a large graphics card to drive two monitors. I upgraded both the desktop and the laptop to Windows 10.

To my surprise, the Remote Desktop Connection experience is much better with the desktop PC than with my laptop. I'm connecting to the same machine at the workplace, and I use the same monitor at home. With the desktop, there is no blurring of the text, and positioning the mouse is sharp and accurate. Working from home is now just as fast [ or slow-:) ] as working in the office.

I found a Microsoft publication which explains the improvements of the RDC protocol in Windows 10: https://blogs.technet.microsoft.com/enterprisemobility/2016/01/11/remote-desktop-protocol-rdp-10-avch-264-improvements-in-windows-10-and-windows-server-2016-technical-preview/

I understand the improved experience relies on certain graphics capabilities, but this leaves me none the wiser for any future purchases. After all, my laptop also has a graphics card, admittedly a small one to fit into a 13" case. Assume I want to buy a computer, or just chose a new graphics card, in view of working from home. How would I know if it supports the AVC/H.264 codec and the other preconditions required by the new 4:4:4 compression for RDC ?

Has anyone tried "enabling" of AVC 444 as described in the article ?
 

andrewsc

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thanks for your reply. You explained why my laptop couldn't do it. It only has an Nvidia 520M so that being below 600 it does not seem to support remoteFX. The same laptop also has an integrated Intel HD Graphics 3000 which is very close to Sandy Bridge, but it only supports DirectX 10.1 whereas the Microsoft article says it needs version 11.0 of DirectX.

But wait. The desktop which works great with RDC has an ATI Radeon HD3450. That graphics card is also stuck with version 10.1 of DirectX. So theoretically should not work. But it works ! I can even use both of my monitors (at different resolutions !) for the remote connection.

To make a full inventory in the house, my wife's new laptop has a Radeon R6 M345DX. Would that support the AVC 444 codec for RDC ? I can't find much documentation about the codecs supported by each graphics card. I must try it , just to make sure I have a backup for remote work, in case my 5-year old desktop gives up the ghost.

The specs of graphics cards seldom indicate support for remoteFX. I guess this might change in the future, now that RDC uses the codes to such a great effect.

Also, may I ask how can I check when I'm at 1607 with Windows 10 ? There was some upgrade a couple of days ago.