xpra was upgraded to 2.1 recently, and now I'm getting the following python exception when running 'xpra attach --dpi 96'
It doesn't happen without --dpi 96, but I need this parameter since otherwise the font in the xpra windows is *tiny*.
$ xpra attach --dpi=96 :10 2017-07-28 18:08:07,338 Xpra gtk2 client version 2.1-r16525 64-bit 2017-07-28 18:08:07,338 running on Linux neon 16.04 xenial 2017-07-28 18:08:07,953 GStreamer version 1.8.3 for Python 2.7.12 64-bit /usr/lib/python2.7/dist-packages/xpra/client/gl/gl_check.py:552: GtkWarning: Unable to locate theme engine in module_path: "adwaita", w = gtk.Window() Gtk-Message: (for origin information, set GTK_DEBUG): failed to retrieve property `gtk-primary-button-warps-slider' of type `gboolean' from rc file value "((GString*) 0x4df23a0)" of type `gboolean' 2017-07-28 18:08:08,232 PyOpenGL warning: missing accelerate module 2017-07-28 18:08:08,232 PyOpenGL warning: missing array format handlers: numeric, vbo, vbooffset 2017-07-28 18:08:08,233 OpenGL Version: 3.0 Mesa 17.0.7 2017-07-28 18:08:08,233 OpenGL support is missing: 2017-07-28 18:08:08,233 PyOpenGL version 3.0.2 is too old and buggy 2017-07-28 18:08:08,247 keyboard settings: rules=evdev, model=pc101, layout=de 2017-07-28 18:08:08,248 desktop size is 4920x1920 with 1 screen: 2017-07-28 18:08:08,248 :0.0 (1299x507 mm - DPI: 96x96) 2017-07-28 18:08:08,248 monitor 1 1920x1200 at 0x360 (520x320 mm - DPI: 93x95) 2017-07-28 18:08:08,248 monitor 2 1920x1200 at 1920x360 (520x320 mm - DPI: 93x95) 2017-07-28 18:08:08,248 monitor 3 1080x1920 at 3840x0 (510x290 mm - DPI: 53x168) 2017-07-28 18:08:08,248 upscaled by 125%, virtual screen size: 3936x1536 2017-07-28 18:08:08,249 :0.0 (1299x507 mm - DPI: 76x76) 2017-07-28 18:08:08,249 monitor 1 1536x960 at 0x288 (520x320 mm - DPI: 75x76) 2017-07-28 18:08:08,249 monitor 2 1536x960 at 1536x288 (520x320 mm - DPI: 75x76) 2017-07-28 18:08:08,249 monitor 3 864x1536 at 3072x0 (510x290 mm - DPI: 43x134) 2017-07-28 18:08:08,249 error preparing connection: local variable 'xdpi' referenced before assignment Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/xpra/client/client_base.py", line 317, in send_hello hello.update(self.make_hello()) File "/usr/lib/python2.7/dist-packages/xpra/client/gtk2/client.py", line 287, in make_hello capabilities = GTKXpraClient.make_hello(self) File "/usr/lib/python2.7/dist-packages/xpra/client/gtk_base/gtk_client_base.py", line 418, in make_hello capabilities = UIXpraClient.make_hello(self) File "/usr/lib/python2.7/dist-packages/xpra/client/ui_client_base.py", line 1424, in make_hello self._last_screen_settings = (root_w, root_h, sss, ndesktops, desktop_names, u_root_w, u_root_h, xdpi, ydpi) UnboundLocalError: local variable 'xdpi' referenced before assignment 2017-07-28 18:08:08,534 Connection lost
I modified the file for a workaround that works for now. I changed the offending line to:
self._last_screen_settings = (root_w, root_h, sss, ndesktops, desktop_names, u_root_w, u_root_h, dpi, dpi)
since only dpi is calculated in the surrounding code.
Sorry about that, and thanks for reporting the bug.
Just out of curiosity, why do you use the dpi switch? Maybe your server is also running Ubuntu and you lack wiki/Xdummy support?
As I said, the font of the xpra windows is otherwise tiny, so that it's unreadable.
The client and server are on the same system which is KDE neon (based on Ubuntu 16.04 LTS). I have installed the latest HWE stacks including newer X.org, though. I start some windows inside xpra so that I can access them when I'm working from home.
I start the server is a systemd user instance like this:
/usr/bin/python /usr/bin/xpra start -d sound --opengl=yes --sharing=yes --pulseaudio=no --daemon=no :10
The X server is then started like this:
Xvfb-for-Xpra-:10 +extension Composite -screen 0 5760x2560x24+32 -dpi 96 -nolisten tcp -noreset -auth /home/tmartitz/.Xauthority :10
Note that both
$HOME/.xpra/xpra.conf are empty (contain only comments).
Do you need more information?
I have installed the latest HWE stacks including newer X.org, though
Then you're using Xorg without the Xdummy patches, hence the DPI issues.
I start the server is a systemd user instance like this: (..)
That's going to make the logs very verbose... and also slow things down.
This doesn't do anything server-side.
Do you need more information?
No, I think it's all covered. If you want better DPI handling, install the patched xdummy, otherwise just keep hard-coding it.
Thanks for the report!
(better ticket title)
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1605