Thanks for the information.  I did also update the version of Wine in the container which helped quite a bit. But I do see black windows from time to time.  Unfortunately, I can't find the pattern.

Antoine Martin via shifter-users wrote on 8/10/21 7:26 AM:
On 05/08/2021 08:12, Craig Setera via shifter-users wrote:
Hello!

I'm in the midst of trying to get the Fitbit Simulator which is only
supported on Windows and MacOS using my Linux (Ubuntu latest) laptop.
While I started with
https://github.com/bingtimren/fitbit-simulator-linux-wine-image, I had
issues with the fact that my laptop is actually a HiDPI machine and the
resulting application was much too small.  I remembered that I had seen
an example of using Xpra to scale a Linux desktop application and
decided to see if I could do the same with this.  I set up a Docker
container to bind Xpra to a TCP Port and am attaching to that port from
the host port.
Xpra nows ships a utility command for doing this sort of scaling, try:
run_scaled yourapp

Unfortunately, I'm getting very inconsistent results.  When it works,
things are properly scaled (by 2x) and work as I would expect.  However,
many times, I end up with a completely black window.  I've tried many
different combinations of options on both the container (server) side
and the attach side.  I've tried to disable as much functionality as
possible as well.  In the end, I'm just not getting a consistent
non-black display.
Can you reproduce the problem with a regular application or just this one?

Can anyone suggest how to troubleshoot this issue?  The fact that it
seems to work sometimes makes me feel like I'm close to a solution.
That's a fair assessment.
Please see:
https://github.com/Xpra-org/xpra/wiki/Reporting-Bugs
And create a ticket there.
We should be able to sort this out quickly.

Cheers,
Antoine


PS: the mailing list remains in emergency moderation mode following one
spammy message last month. It may take longer than usual to post and get
replies.

Thanks,

Craig


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