[winswitch] HTML start-desktop crash

[Berdonces Bonelo, Erik]

Hi,

I’m sending it back to this mail, because seems I got a migration in my inbox and I didn’t receive the answer back (no worries, I read it in the online mailman archive), plus I got a new mail address.

On the desktop size the answers helped a lot, and now I’ve been able to run it in Ubuntu 16.04 after uninstalling VirtualBox additions and configuring my screen size.
However, I’ve tried to repeat the same process in Ubuntu 14.04, installing the latest version from WinSwitch repository and I’m having some troubles. As it seems it can’t create the socket, even if the .xpra folder gets set a 777 chmod and ubuntu is part of the Xpra group of users.

Errors are as it follows:

ubuntu at machine86ec8863-384b-4baf-af76-aadfbefd4400:~$ xpra start --bind-tcp=0.0.0.0:14500 --html=on --no-daemon
Initializing built-in extension Generic Event Extension
Initializing built-in extension SHAPE
Initializing built-in extension MIT-SHM
Initializing built-in extension XInputExtension
Initializing built-in extension XTEST
Initializing built-in extension BIG-REQUESTS
Initializing built-in extension SYNC
Initializing built-in extension XKEYBOARD
Initializing built-in extension XC-MISC
Initializing built-in extension SECURITY
Initializing built-in extension XINERAMA
Initializing built-in extension XFIXES
Initializing built-in extension RENDER
Initializing built-in extension RANDR
Initializing built-in extension COMPOSITE
Initializing built-in extension DAMAGE
Initializing built-in extension MIT-SCREEN-SAVER
Initializing built-in extension DOUBLE-BUFFER
Initializing built-in extension RECORD
Initializing built-in extension DPMS
Initializing built-in extension Present
Initializing built-in extension DRI3
Initializing built-in extension X-Resource
Initializing built-in extension XVideo
Initializing built-in extension XVideo-MotionCompensation
Initializing built-in extension SELinux
Initializing built-in extension GLX
[dix] Could not init font path element /usr/share/fonts/X11/cyrillic, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/Type1, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi, removing from list!
Using display number provided by Xvfb: :0
Xlib:  extension "RANDR" missing on display ":0".
Xlib:  extension "RANDR" missing on display ":0".
2017-02-13 09:46:02,017 Error: failed to create socket '/home/ubuntu/.xpra/machine86ec8863-384b-4baf-af76-aadfbefd4400-0':
2017-02-13 09:46:02,017  [Errno 1] Operation not permitted: '/home/ubuntu/.xpra/machine86ec8863-384b-4baf-af76-aadfbefd4400-0'
xpra initialization error:
 failed to create socket /home/ubuntu/.xpra/machine86ec8863-384b-4baf-af76-aadfbefd4400-0
2017-02-13 09:46:02,018 closing TCP socket 0.0.0.0:14500
2017-02-13 09:46:02,018 killing xvfb with pid 5842
ubuntu at machine86ec8863-384b-4baf-af76-aadfbefd4400:~$ umask
0002

This is in a plain Ubuntu Server 14.04 and installing the latest version of xPra and with default configuration. I can run the command with sudo, but then,  it complains that it misses the dbus, websockify and many other packages. If I try to install them by hand, it says they are already installed. So, I’m not sure what’s happening that xPra can’t detect the dependencies are already installed..

These two things were the ones crashing xPra previously as I see (now running in non-daemon mode seems to keep it running, but still can’t run it in HTML mode and I get lots of warnings)

Thanks!
Best regards,

Erik Berdonces Bonelo


On Feb 8, 2017, at 5:42 PM, Berdonces Bonelo, Erik <erik.berdoncesbonelo at tu-berlin.de<mailto:erik.berdoncesbonelo at tu-berlin.de>> wrote:

Hello,

I’m trying to run a full desktop (I have tried KDE and Unity so far), in order to manage remotely a server.
At the moment I have this running as a VM in VirtualBox  + VBox Addons in my computer (I hope it isn’t this interfering somehow…). I’ve been trying with Ubuntu 14.04, Ubuntu 16.04, Kubuntu 16.04 and CentOS 7. In all of them I’ve installed the latest release from the Winswitch repository (at the moment 1.0.2).

Anyways, whenever I start an xpra session,  either if I start it from the client or HTML5 client, the transmitted desktop is a window that is much larger than my actual physical screen, and I can’t even resize it down. I’ve tried with the –desktop-scaling option, but it has no effect.

Also, I’ve tried to use different desktops (kde, gnome and unity), and to disconnect my physical second screen from my laptop. If I start a simple program as xterm, there are no problems, it’s the proper size. However, doing so with a desktop, it just won’t work.

Any suggestions on this? I’ve gone through all the xpra manual, but I might have overlooked a setting. Otherwise I don’t know if it can be a bug maybe…

Thanks a lot, and of course, thanks a lot for your great work and for this tool!

Best regards,

Erik berdonces