Vasyl Gello

Great! I managed to get into Xpra server on the same machine started like `xpra start --start-child=xeyes --exit-with-children --auth password:value=xpra` via HTML5 client without the need to specify `passwordN` options...

> it's not clear to me how you managed to connect an HTML5 client to it. The machine where I started Xpra server also has Xpra system proxy server on...

Server log with HTML5 `draw` debugging enabled [error.log](https://github.com/Xpra-org/xpra/files/7575092/error.log) Encoding is `Automatic` with `min-quality` and `min-speed` set to 30.

@totaam

> @basilgello does the commit above fix things? (for the non-decode worker code path) I tested it by copying the master tree into `/usr/share/xpra/www` and I dont see much difference...

No, both trunks are the same as reported so it is not a fix

I still dont understand why the master trunk of xpra still has this error: ``` 2021-11-21 22:45:55,990 Error: failed to encode jpeg video frame using jpeg: 2021-11-21 22:45:55,990 YUV420P buffer...

And what's more interesting, breakages on scroll coincide with these,error messages in `server.log`.

> > You have the decode worker disabled right? Yes > > Can you try to re-enable it to see if that fixes the distortion? With xpra-org/xpra@d75d53d9a0dc5a0f4484c9a9cdeac51a566bdd01 and xpra-org/xpra-html5@master I...

> "still" as in, you saw it before? Yep, it is in the log in my 2nd comment in this issue: > Server log with HTML5 draw debugging enabled >...