IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 30 September 2017 (all times are UTC)
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| 13:15 | <markit> hi alkisg, do you have some time to troubleshooting a epoptes problem? Hope is not kde related
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| 13:16 | <markit> when I broadcast the video it works until I open another program in the teacher's PC, then che client broadcast stops
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| 13:16 | epoptes 0.5.10-1, (k)ubuntu 16.04
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| 13:18 | ltsp 5.5.9+t201706270552~ubuntu16.04.1... maybe better upgrade to 5.5.9+t201708260827~ubuntu16.04.1 and test again
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| 13:47 | mmm if I'm in chroot, can't resolve names (dns)
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| 13:51 | ok, shortcut, removed resolver
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| 14:20 | <markit> alkisg: epoptes seems to "crash" the broadcast at client level (I still see clients in epoptes, but is the broadcast there that disappears)
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| 14:21 | <alkisg> Hi markit
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| 14:21 | <markit> hi alkisg, I'm so happy to hear you :)
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| 14:21 | btw, in chroot I've removed resolvconf, I had no dns resolution there
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| 14:22 | (when I tried to update the chroot)
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| 14:22 | <alkisg> Uh, ok, you just needed to update your /etc/resolv.conf
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| 14:22 | So you just press the epoptes "broadcast teacher screen" button,
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| 14:22 | and then it works,
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| 14:22 | <markit> alkisg: you mean "on the fly"?
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| 14:22 | <alkisg> and then you open an unrelated program like e.g. libreoffice,
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| 14:22 | and then it crashes?
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| 14:23 | About resolv.conf? Yes
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| 14:23 | <markit> alkisg: back to epoptes problem
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| 14:23 | I have the screen broadcasted, if I move some opened window/program it crashes, imediately or after some second
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| 14:24 | <alkisg> Can you read what I wrote and say yes/no?
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| 14:24 | <markit> I see the thumbail of the clients back to their original (local) content
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| 14:24 | "and then it crashes?" YES
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| 14:24 | <alkisg> OK, let me see..
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| 14:24 | !vnc-edide
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| 14:24 | <ltsp> vnc-edide: To share your screen with me, open Epoptes → Help menu → Remote support → Host: srv1-dide.ioa.sch.gr, and click the Connect button
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| 14:32 | <alkisg> xcb] Unknown sequence number while processing queue
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| 14:32 | [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
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| 14:32 | [xcb] Aborting, sorry about that.
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| 14:32 | x11vnc: ../../src/xcb_io.c:274: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
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| 14:32 | caught signal: 6
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| 14:32 | extra[1] signal: -1
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| 14:33 | So, it happens when I press any key after broadcasting
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| 14:33 | Maybe some kde library is interfering with some vnc library
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| 14:33 | <markit> also if you click around moving windows
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| 14:33 | <alkisg> I haven't seen that
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| 14:33 | We can google it and report it to x11vnc...
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| 14:34 | I hope it's not related to simultaneously using x11vnc many times
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| 14:34 | E.g. now you're sending your screen to me, AND to the clients
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| 14:35 | <markit> ah, I can try and paste you the output... well, I already had the output when crashes
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| 14:35 | <alkisg> This is fine, I put it in irc here
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| 14:35 | <markit> private question mark
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| 14:35 | <alkisg> But I don't have kde so it will be difficult for me to report the x11vnc bug
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| 14:36 | It would be best if you run `xvnc4viewer -listen` and `x11vnc -connect` and reproduce it without epoptes, and report it yourself...
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| 14:36 | Does it happen in all kde setups?
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| 14:36 | <markit> well, with 14.04 did not, and probably only in this school they have 16.04 AND use broadcast
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| 14:37 | this is a 12.04 to 16.04 updated installation
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| 14:37 | <alkisg> OK... one way to start would be to reproduce it in a clean 16.04 kde installation
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| 14:37 | If it happens there too, then reproduce it without epoptes
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| 14:37 | So then finally, report it to x11vnc...
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| 14:38 | <markit> ok, I will let you know, this connection is modifying the keyboard and can-t write some characters
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| 14:38 | <alkisg> I ran setxkbmap us
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| 14:38 | Run setxkbmap it now to fix it
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| 14:39 | <markit> ok, thanks a lot :) Hope to find the solution soon
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| 14:39 | I go home in a short time and try with my VMs
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| 14:39 | <alkisg> Cool
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| 14:40 | <markit> :(
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| 14:41 | if is a x11vnc but it will take a huge amount of time to be processed and fixed, if is a kde problem even more, lol
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| 14:41 | <alkisg> :/
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| 14:42 | The good things about open source!
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| 14:42 | (and the standard reply would be "they accept patches"!)
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| 14:42 | <markit> yeah, if you are skilled enough
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| 14:43 | lol, even if sometime they even don't accept them
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| 14:43 | is school already started in Greek?
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| 14:43 | <alkisg> Yes, september 10th
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| 14:44 | <markit> here too
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| 18:33 | <mmarconm> which is the link to ltsp projetct on git ?
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