Xpra trac archive

Xpra: Ticket #6: Emacs Issues: xpra locks up, screen stops re-drawing

I'm working with a recent version off the SVN repo (the date on the sources is 2011-08-02 19:36).

I've found two problems: one is occasional lockups and the other has to do with screen redrawing.

I'm not sure what causes the lockups, sometimes they are cured by minimizing and maximizing or by killing the xpra attach session and re-attaching.

The screen re-drawing is a consistent problem when scrolling through a lot of text. It looks as though emacs isn't keeping up with the redrawing somehow (a lot of "artifacts" are left in the buffer). This wasn't a problem in older versions of xpra, so I wonder if there's a setting that might help.

Here's output from the console: 

$ xpra attach ssh:fdata1:14
'setxkbmap -query' failed with exit code 255
Missing window or missing property or wrong property type PULSE_SERVER (latin1)
Missing window or missing property or wrong property type PULSE_COOKIE (latin1)
Missing window or missing property or wrong property type PULSE_ID (latin1)
Attached (press Control-C to detach)
/usr/local/lib/python/xpra/xposix/xclipboard.py:227: GtkWarning: gdk_x11_atom_to_xatom_for_display: assertion `ATOM_TO_INDEX (atom) < virtual_atom_array->len' failed
  gtk.Invisible.do_selection_request_event(self, event)

Thu, 04 Aug 2011 01:29:12 GMT - FredSRichardson: attachment set

Thu, 04 Aug 2011 20:39:09 GMT - Antoine Martin: status, description changed

Thu, 04 Aug 2011 20:44:57 GMT - Antoine Martin:

I'm not sure about the lockups, and there isn't anything suspicious in the logs. Also, I use vi not emacs, so I'm not sure exactly how to reproduce. Feel free to post emacs steps for dummies!

As for the refresh issue: although it was not meant to be used for that, this option may help in your case (at least it will cleanup the mess): 

--auto-refresh-delay=DELAY
                        Idle delay in seconds before doing automatic lossless
                        refresh. 0.0 to disable. Default: 0.0.

IIRC, you will have to enable jpeg compression for this option to have an effect, either: 

--jpeg-quality=LEVEL

or 

-b BANDWIDTH (kB/s), --max-bandwidth=BANDWIDTH (kB/s)

Let me know if that helps.

Fri, 02 Sep 2011 07:40:42 GMT - Antoine Martin: summary changed

Did any of this help? How does it differ from #14? (some useful info there too)

Fri, 02 Sep 2011 13:15:08 GMT - FredSRichardson:

Aren't these disabled by default? That is, I can't imagine I would want any refresh delay, so the default 0.0 should be correct. Similarly it looks like jpeg-quality and max-bandwidth are not limited by default. Am I missing something?

I have tried -z 0 to turn off all compression and no-pulseaudio. I also tried no-clipboard, but I actually need the clipboard...

Fri, 02 Sep 2011 15:14:11 GMT - Antoine Martin:

Yes, these are disabled by default, the refresh delay should help in your case: it will do a full screen refresh after the delay, which may help solve your problems with garbled screen updates by refreshing the whole screen. It would be useful to know if it helps.

Fri, 02 Sep 2011 16:40:22 GMT - FredSRichardson:

Ah, okay, I will try the auto-refresh-delay option.

Thanks!

-Fred

Fri, 23 Sep 2011 14:44:27 GMT - Antoine Martin:

current trunk will honour the --auto-refresh-delay=DELAY even when not using jpeg encoding, see --encoding option. Does this help (as a workaround - not a real fix)?

Mon, 21 Nov 2011 14:24:55 GMT - Antoine Martin: status changed; resolution set

No updates, closing.

Mon, 20 Feb 2012 19:47:44 GMT - Antoine Martin: version, milestone set

Sat, 23 Jan 2021 04:43:01 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/6