No idea why that is.

It may be worth trying a new version of pygtk/gtk/..

I have seen this sort of crash before (usually on shutdown with control-C), but this seems to happen during runtime which is more problematic... The ​original bug (was on the wrong tracker) says this happens on clicking "Apply" in the options window (I assume the main 'Configuration' dialog - not the server options?).

I first thought that this was due to pybonjour, but the backtrace also seems to point to pynotify (and gio/dbus) - maybe we need an idle_add call on the notify path?

Hello,

I need 8 bit pseudocolor for some x apps who use it (don't have code of these apps to change it) to get blinking colors. But I don't get xpra working with depth = 8 bit.

When I (on a Red Hat 7.2) test 'xpra start' (v0.16.2-r11889) as root with DefaultDepth and Depth 8 in /root/.xpra/xorg.conf.d/Screen, I get following error in file ':0.log':

  File "window_bindings.pyx", line 604, in xpra.x11.bindings.window_bindings.X11WindowBindings.ensure_XComposite_support (xpra/x11/bindings/window_bindings.c:5406):
  ...
  File "window_bindings.pyx", line 426, in xpra.x11.bindings.window_bindings.X11WindowBindings.ensure_extension_support (xpra/x11/bindings/window_bindings.c:2342)
  ValueError: X11 extension Composite not available
  ...

See attachments for the necessary files.

I'm pretty sure it is a restriction in the x(dummy) server:

From source code package xorg-x11-server-Xorg, v 1.17.2, file composite/compext.c, fu CompositeExtensionInit:

  ...
  //Composite on 8bpp pseudocolor root windows appears to fail, so
  //just disable it on anything pseudocolor for safety.
          for (vis = pScreen->visuals; vis->vid != pScreen->rootVisual; vis++);
          if ((vis->class | DynamicClass) == PseudoColor)
              return;
  ...

Xvnc, on the other hand, does support 8-bit pseudocolor. My questions are:

• Is there a way to get 8 bit pseudocolor working with xpra that i overlook?
  • And do have the 'xpra'-developers an idea of what is necessary to get the 'composite' extension working with 8 bit pseudocolor. Or better to ask this on the Xorg team?

I don't know enough of it, but if Xvnc gets 8 bit pseudolor working, the I think it should also be possible to implement this for X + Composite extension. Xvnc must also use something Composite like, no?

Thanks in advance if you have the time and effort to look into these questions.