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Ticket Resolution Summary Owner Reporter
#291 fixed When attempting to start an application on Fedora 24 using WindowSwitch 0.12.21 you are informed that xpra is not supported. jayce1996 jayce1996
Description

If you try to start an application on a Fedora 24 server using WindowSwitch? 0.12.21, you get the following error dialog:

You have requested an xpra session but this server does not support it.

Attempting to start an xpra session directly using: xpra start ssh:localhost:100 --start-child=xchat

actually produces an application.

xpra is installed in the same location that winswitch thinks it is.

#290 fixed CentOS 6.8 package directory is missing "winswitch" package (maybe others) badpens
Description

The http://winswitch.org/dists/CentOS/6.8/x86_64/ directory is missing the "winswitch-0.12....." package.

The http://winswitch.org/dists/CentOS/6.7/x86_64/ directory does have packages like winswitch-0.12.22-1.x86_64.rpm

Do I need to hardcode my /etc/yum.repos.d/winswitch.repo to use 6.7 instead of $releasever ?

#286 invalid question about 8bit pseudocolor support by xpra Ward Braspenning
Description

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.

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