IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 16 June 2014   (all times are UTC)

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07:51
<valeriobozzolan>
Hi! :D
07:51
I have a little problem with KAlgebra, on thin clients: https://bugs.kde.org/show_bug.cgi?id=336257
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07:52
<valeriobozzolan>
They say that isn't a KAlgebra related problem.
08:00
Ideas?
08:02
<work_alkisg>
Use fat clients
08:02
Opengl over the network has issues
08:02
!fatclients
08:02
<ltsp>
fatclients: You may find some info about the Ubuntu/LTSP implementation of fat clients at https://help.ubuntu.com/community/UbuntuLTSP/FatClients
08:02
<work_alkisg>
!ltsp-pnp
08:02
<ltsp>
ltsp-pnp: ltsp-pnp is an alternative (upstream) method to maintain LTSP installations for thin and fat clients that doesn't involve chroots: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
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09:13
<valeriobozzolan>
I repeat :)
09:13
If somebody know how can be fixed this error that occurs only on thin clients, respond on the bug please :)
09:13
https://bugs.kde.org/show_bug.cgi?id=336257
09:13
Have a nice day!
09:14
(Virtualized thin clients and phisical thin clients)
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10:09
<work_alkisg>
valeriobozzolan: I repeat: read what I wrote above! ^^^
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10:33
<valeriobozzolan>
work_alkisg: Sorry can you rewrite?
10:37
(Pidgin history problem :|)
10:41
All right I've read!
10:42
Thank you very much :)
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11:08
<SpComb>
work_alkisg: does that also apply to attempts to run the default ubuntu desktop session (compiz/unity) on Ubuntu 14.04 LTSP?
11:08
compiz (unityshell) - Error: GL_ARB_vertex_buffer_object not supported
11:08
gnome-session[11731]: WARNING: App 'compiz.desktop' exited with code 1
11:13
<work_alkisg>
SpComb: yeah, 3d over the network is problematic
11:14
That's why e.g. edubuntu uses gnome-fallback by default
11:15
<SpComb>
unity seemed to work in Ubuntu 12.04, did something in particular change?
11:16
<work_alkisg>
Unity-3d never worked for me on thin clients
11:16
Unity-2d did work
11:16
And of course unity-3d does work on fats
11:16
But, I'm not using unity, so I don't know the details there...
11:16
<SpComb>
I guess Ubuntu 12.04 shipped some kind of automagic unity-2d fallback in that case?
11:18
<work_alkisg>
No idea, if it works for you, run `ps` and tell us what you see
11:19
<SpComb>
but ack, set gnome-fallback as default session in 14.04
11:19
*will set
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18:23
<alkisg>
stgraber, vagrantc: About https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/1330252 and https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/987726, I think Ubuntu needs to remove the 40-ltsp-client/40-ltsp-server patch, and X50-dmrc-processing needs to export the LDM_SESSION in CLIENT_ENV as DESKTOP_SESSION
18:23
Because now we export silly things as DESKTOP_SESSION, and that breaks a lot of stuff
18:24
<jammcq>
hey alkisg
18:24
<alkisg>
Hi jammcq :)
18:24
<jammcq>
have you guys seen this: http://www.sustainia.me/
18:24
if you look at the PDF and go to page 97
18:24
you'll see LTSP :)
18:25
actually page 50 in the PDF, it's 2 pages per PDF page
18:29
<vagrantc>
nice
18:30
alkisg: we don't have those files on Debian, or use DESKTOP_SESSION in debian, as far as i know...
18:31
<alkisg>
vagrantc: so if I boot debian/lxde and run env|grep DESKTOP_SESSION, I see nothing?
18:31
<ogra_>
heh ... developer in the USA ...
18:31
<vagrantc>
alkisg: is LDM_SESSION exclusively a .desktop file now?
18:31
<alkisg>
No, it can be an Exec line for backwards compatibility
18:31
<vagrantc>
alkisg: yes, DESKTOP_SESSION isn't used in Debian, at least not last i looked
18:32
<jammcq>
ogra_: well... that was true at one point in time. I dunno where they got the information from
18:32
<ogra_>
jammcq, yeah, today its more a swiss canadian, greek, american co-production i guess
18:32* vagrantc is cascadian
18:32
<ogra_>
(hi btw)
18:32
haha
18:33
yeah
18:33
<jammcq>
no doubt, it's a global effort
18:34
<alkisg>
stgraber: then you might want to create an X50-dmrc-ubuntu patch that sets DESKTOP_SESSION from LDM_SESSION, and drop the debian/40-ltsp patch, as it doesn't work correctly...
18:34
<vagrantc>
is dmrc even used consistantly?
18:36
<alkisg>
vagrantc: that file checks default/failsafe/LDM_SESSION etc, I think that's where ubuntu should check for and set DESKTOP_SESSION
18:36
(or, shortly after that)
18:37
I.e. it shouldn't try to find the session from Xsession.d/40-ltsp-client, but from LDM, where we know LDM_SELECTED_SESSION etc
18:37
It's not related to .dmrc only...
18:37
<vagrantc>
so, my only concern would be making sure it doesn't break when LDM_SESSION is not a .desktop file
18:38
<alkisg>
dmrc_session=$(do_ssh "grep -lR '^Exec=$LDM_SESSION$' /usr/share/xsessions/ | sed -n '/\/usr\/share\/xsessions\/\(.*\)\.desktop/{s//\1/p;q}'")
18:38
We have code there that converts a line to a desktop file
18:38
We should only set DESKTOP_SESSION if we do have a desktop file...
18:38
and possibly only in Ubuntu
18:40
<vagrantc>
it doesn't hurt to set DESKTOP_SESSION
18:40
although maybe other distros use the variable?
18:40
and hopefully not differently...
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19:15
<bennabiy>
hmm. I am encountering a funny instance of my taskbar not appearing when I log in from mint17 thinclient
19:15
I wonder if it is because my user is logged in at the server...
19:22
<vagrantc>
users logged in multiple places is not well supported...
19:23
or rather, really leads to disaster
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19:24
<bennabiy>
it is not that...
19:24
just tried with not being logged in
19:24
<vagrantc>
well, having made the mistake once, i wouldn't be surprised if it left problems all over the place.
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19:25
<alkisg>
The taskbar problem is very common in Ubuntu 12.04, 14.04 etc with gnome-fallback
19:25
I haven't ever seen it in 10.04 though (although then we used NFS for /home)
19:28
<bennabiy>
alkisg: what is the solution?
19:29
vagrantc: will reboot, and check again. I normally enable the boot the user if already logged in option
19:35
<alkisg>
bennabiy: I haven't found one, so we have a wrapper that re-launches it if it's not loaded correctly
19:36
https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/1078679
19:37
<bennabiy>
alkisg: seems it was related to the video=LVDS-1:d fix... I fixed that to get rid of the ghost LVDS display which does not exist, and it fixed it.
19:38
<alkisg>
Ah, cool, so mint doesn't have the gnome-fallback bug, nice
19:39
<bennabiy>
I will let you know as I keep testing it. I am finally at a place to do a little work on it, and it seems the code needs some help with pulling a mint chroot again
19:39
something changed in the packaging of 17 / 14.04 and it seems what used to be pulled by a meta-package is now needing to be pulled manually
19:41
so far I have made a 14.04 chroot for booting up the thin clients. it seems to be working.
19:42
What would be the best way to add apt pinning within a chroot through the build process?
19:42
effectively, I need to pin mint repo at 700
19:43
<vagrantc>
just write up a hook.
19:45
there's 010-apt-pinning in the Debian plugins
20:20
<bennabiy>
ahh, good starting point. Thank you :)
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