Lossy compression of screen?

[monken]

It seems like currently, only lossless compression is supported. I have set up a Linux VM and connect through XRDP from a Windows machine. In parallel, I also use Guacamole (guac-dev.org) to connect to the same host. I usually get better performance out of Guacamole when I'm on a high-latency link (cross atlantic). I attribute this to the lossy compression that Guacamole is using as opposed to the lossless compression from xrdp. Is it possible to tweak the compression algorithm to reduce bandwidth and therefore improve performance over high-latency/low-bandwidth links?

[johnarnold]

Are you using latest version of Xorg driver (0.2.2) ? Recently there were big improvements with tile-based refresh that really improved performance for me over WAN links, VPNs etc.

[monken]

Yes, that update definitely helped. And I also would like to mention that I prefer the lossless compression most days out of the week. But the few time where I am on a slow link, it becomes almost impossible to work with the remote desktop.

[metalefty]

Need to implement RemoteFX Adaptive Graphics or Progressive RemoteFX
Maybe they're part of MS-RDPEGFX: https://msdn.microsoft.com/en-us/library/hh554846.aspx

[shadoxx]

+1 for this feature request. Implementing the MS-RDPEGFX specification into XRDP would be a huge step forward. Microsoft just updated the specification today: https://winprotocoldoc.blob.core.windows.net/productionwindowsarchives/MS-RDPEGFX/[MS-RDPEGFX]-170915-diff.pdf

[matt335672]

Over a WAN, see also #2910. This doesn't implement lossy compression, but it does improve throughput.