Xpra: Ticket #2321: html5 window resizing goes blank

The window gets repainted with the updated contents (new size), but then somehow ends up being repainted again with empty contents (white).

Debug paint log:

client draw may_paint_now() paint pending= 0 , paint queue length= 1
client draw do_paint( 2388  bytes of   webp  data  775 x 927  at  0 , 0 ) focused= true
client draw request_redraw for Window(1)
client draw swap_buffers
client draw decode time for  webp  sequence  21 :  5 , flush= 0
client draw may_paint_now() paint pending= 0 , paint queue length= 0
client draw animation frame: 1 windows to paint


Tue, 11 Jun 2019 11:30:16 GMT - Antoine Martin: status changed; resolution set

Workaround in r22901: we just force a refresh shortly after the end of the resizing.

I have no idea why sometimes things get wedged, and no time to investigate further.


Sat, 23 Jan 2021 05:48:11 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2321