I have once researched all the compression options. You can read the results here: https://github.com/ArcticaProject/nx-libs/issues/802 There's another compression type "lossless" which cannot be selected in the gui but will auto-select one of the lossless compression settings.
This has not been integrated into nx to this date but eventually will.
Uli
On Thu, Apr 2, 2020 at 10:08 AM Stefan Baur <X2Go-ML-1@baur-itcs.de> wrote:
Am 02.04.20 um 09:30 schrieb Richard Beare:
I forgot to check - is there a "lossless update" button anywhere, like turbovnc?
No, there's no such button. You need to select an image format that is lossless. Session configuration, Connection tab, Compression Method. "nopack" and "PNG" with "Image Quality: 9" *should* be safe, but please research this yourself. You could try an image that you know has fine details, and view it via a regular ssh -X connection, then view it via X2Go and compare the results.
Or, you could make it a habit to double-check every important step/final result by saving the image on the server side, then transferring it to the client with X2Go's built-in filesharing option, and looking at it again with an image viewer running on the client.
Kind Regards, Stefan Baur
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