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


Channel log from 4 October 2018   (all times are UTC)

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10:09
<alkisg>
!has
10:09
<ltsp>
I do not know about 'has', but I do know about these similar topics: 'LDM_PASSWORD_HASH', 'ROOT_PASSWORD_HASH'
10:09
<alkisg>
!LDM_PASSWORD_HASH
10:09
<ltsp>
LDM_PASSWORD_HASH: LDM_PASSWORD_HASH=True in lts.conf saves the password hash to /etc/shadow on login, so that the users can unlock the screensaver etc. If they happen to change their password though, that only takes effect until logout.
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14:47
<danboid>
Using shutdown under LTSP 16.04 (under Unity and/or XFCE) reboots rather than powers off here. Known bug?
14:48
That is choosing shutdown from the power menu
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15:21
<mwalters>
alkisg: I think I got my test server sorted. Issue now is that my test client won't start the graphical environment
15:21
no segfaults or anything in the client log
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15:25
<mwalters>
I see an error on the client Xorg.0.log file about not being able to get session, PID #### doesn't belong to any session
15:45
<alkisg>
mwalters: can you describe what is special about your setup, so that we focus the troubleshooting efforts there?
15:45
Because it's not normal for the clients to segfault or be unable to run xorg etc
15:45
Are you trying with only one client that might even have hardware problems, or did you try with 2+ clients and they have the same issue?
15:46
<mwalters>
client is known to work on our 14.04 server
15:46
I can try another, though
15:54
<alkisg>
I've seen xorg drivers work in 12.04, fail in 14.04, work in 16.04, fail in 18.04 etc :)
15:54
<mwalters>
same issue on the client I use day to day. didn't see anything notable in syslog or dmesg, but see this in Xorg logs
15:54
system-logind: failed to get session: PID 1308 does not belong to any known session
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15:54
<alkisg>
That's not important though
15:54
<mwalters>
(the xorg log on the client)
15:55
ok, wasn't sure
15:55
<alkisg>
Can you pastebin xorg.7.log?
15:55
and dmesg and syslog?
15:55
and sudo ltsp-info from the server...
15:55
<mwalters>
sure
15:55
<alkisg>
Is the chroot thin or fat?
15:56
<mwalters>
thin
15:56
<alkisg>
And if it's fat, which desktop environment?
15:56
OK
15:56
<mwalters>
I never even get the login screen, it gets stuck at the startup messages on the client
15:56
<alkisg>
Do you have epoptes installed? Do you see the client in epoptes?
15:57
<mwalters>
I have not checked, lemme see
15:57
yes, I see it in epoptes
15:57
and can even see the login screen
15:58
<alkisg>
Can we do this the fast way then, i.e. for you to give me access to see the client?
15:58
!vnc-edide
15:58
<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
15:58
<mwalters>
sure
15:58
appreciate the help, one sec
16:00
<alkisg>
mwalters: so, the client shows ldm fine, yet you see the boot messages there?
16:00
<mwalters>
yes
16:00
<alkisg>
Heh. That's a new one
16:01
<mwalters>
glad I could come up with an interesting one ;)
16:02
<alkisg>
Did it show a shell now?
16:03
<mwalters>
yes
16:03
<alkisg>
And now?
16:03
<mwalters>
back to the boot messages
16:04
<alkisg>
Is the screen connected via hdmi?
16:04
<mwalters>
monitor turned off
16:04
yes
16:04
oh, actually... it's connect to minidp to hdmi
16:04
sorry
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16:05
<mwalters>
should be dp-1, I think
16:06
I see the login now
16:06
<alkisg>
mwalters: now?
16:06
OK, you need this in lts.conf: X_SMART_COLOR_DEPTH=False
16:06
<mwalters>
this is the "has a problem with default of 16bit", irght?
16:06
from the wiki
16:06
<alkisg>
Right
16:06
<mwalters>
cool, thanks!
16:06
<alkisg>
np
16:08
vagrantc: I've seen better results when we define the color depth in xorg.conf, vs passing it in the command line, -depth 16. Maybe we should roll with that...
16:09
<vagrantc>
that seems really surprising
16:09
<alkisg>
I've reported all these upstream, with no response...
16:10
<vagrantc>
back in the day, i pretty much set X_SMART_COLOR_DEPTH=False since so many clients failed with it for me ... but it's been years
16:10
<mwalters>
login popped right after after uncommenting that from lts.conf
16:11
<vagrantc>
fat clients still default to X_SMART_COLOR_DEPTH=False?
16:12
<alkisg>
Yeah we don't do anything for fat clients
16:12
It's just about thins. The new modesetting driver caused all these issues... it's on by default for intel cards now
16:12
All the other drivers work fine, only the modesetting has a lot of issues with 16 bpp
16:13
<vagrantc>
i also noticed quite a few applications looked much uglier with 16-bit color depth
16:13
<alkisg>
I haven't noticed that. With 8bpp sure, but not with 16
16:13
<vagrantc>
but again, this is... over 5 years ago
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19:03
<mwalters>
probably a dumb question... I enabled fat-clients on my test server... how do i get to the epoptes server this way?
19:04
(assuming that I'm using one of the fat clients)
19:06
<alkisg>
Read the documentation in epoptes.org
19:06
There's a page just for that
19:07
<mwalters>
oh, I didn't see it on the bottom, thanks
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19:40
<Hyperbyte>
alkisg, hi
19:40
I asked before, but how do I actually switch from vanilla ltsp to ltsp-pnp?
19:41
Do I add some ppa or...?
19:41
And which packages do I remove and which do I install?
19:41
<||cw>
!install
19:41
<ltsp>
install: http://wiki.ltsp.org/wiki/Installation/Ubuntu for Ubuntu, or http://wiki.ltsp.org/wiki/Installation for other distributions
19:42
<||cw>
looks like you just rebuild the image
19:43
<Hyperbyte>
Looks like I install ltsp-client
19:43
rm -rf /opt/ltsp/
19:44
And ltsp-update-image
19:46
Thanks ||cw
19:47
I assume LTSP works fine with Ubuntu 18?
19:52
<||cw>
with the PPA listed at that link, it should
20:05
<Hyperbyte>
Hmmm
20:05
Thanks again
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