IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 4 October 2018 (all times are UTC)
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| 10:09 | <alkisg> !has
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| 10:09 | <ltsp> I do not know about 'has', but I do know about these similar topics: 'LDM_PASSWORD_HASH', 'ROOT_PASSWORD_HASH'
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| 10:09 | <alkisg> !LDM_PASSWORD_HASH
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| 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?
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| 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
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| 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
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| 15:45 | <alkisg> mwalters: can you describe what is special about your setup, so that we focus the troubleshooting efforts there?
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| 15:45 | Because it's not normal for the clients to segfault or be unable to run xorg etc
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| 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?
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| 15:46 | <mwalters> client is known to work on our 14.04 server
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| 15:46 | I can try another, though
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| 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 :)
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| 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
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| 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
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| 15:54 | <mwalters> (the xorg log on the client)
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| 15:55 | ok, wasn't sure
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| 15:55 | <alkisg> Can you pastebin xorg.7.log?
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| 15:55 | and dmesg and syslog?
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| 15:55 | and sudo ltsp-info from the server...
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| 15:55 | <mwalters> sure
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| 15:55 | <alkisg> Is the chroot thin or fat?
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| 15:56 | <mwalters> thin
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| 15:56 | <alkisg> And if it's fat, which desktop environment?
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| 15:56 | OK
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| 15:56 | <mwalters> I never even get the login screen, it gets stuck at the startup messages on the client
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| 15:56 | <alkisg> Do you have epoptes installed? Do you see the client in epoptes?
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| 15:57 | <mwalters> I have not checked, lemme see
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| 15:57 | yes, I see it in epoptes
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| 15:57 | and can even see the login screen
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| 15:58 | <alkisg> Can we do this the fast way then, i.e. for you to give me access to see the client?
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| 15:58 | !vnc-edide
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| 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
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| 15:58 | <mwalters> sure
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| 15:58 | appreciate the help, one sec
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| 16:00 | <alkisg> mwalters: so, the client shows ldm fine, yet you see the boot messages there?
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| 16:00 | <mwalters> yes
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| 16:00 | <alkisg> Heh. That's a new one
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| 16:01 | <mwalters> glad I could come up with an interesting one ;)
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| 16:02 | <alkisg> Did it show a shell now?
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| 16:03 | <mwalters> yes
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| 16:03 | <alkisg> And now?
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| 16:03 | <mwalters> back to the boot messages
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| 16:04 | <alkisg> Is the screen connected via hdmi?
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| 16:04 | <mwalters> monitor turned off
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| 16:04 | yes
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| 16:04 | oh, actually... it's connect to minidp to hdmi
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| 16:04 | sorry
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| 16:05 | <mwalters> should be dp-1, I think
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| 16:06 | I see the login now
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| 16:06 | <alkisg> mwalters: now?
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| 16:06 | OK, you need this in lts.conf: X_SMART_COLOR_DEPTH=False
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| 16:06 | <mwalters> this is the "has a problem with default of 16bit", irght?
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| 16:06 | from the wiki
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| 16:06 | <alkisg> Right
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| 16:06 | <mwalters> cool, thanks!
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| 16:06 | <alkisg> np
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| 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...
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| 16:09 | <vagrantc> that seems really surprising
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| 16:09 | <alkisg> I've reported all these upstream, with no response...
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| 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
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| 16:10 | <mwalters> login popped right after after uncommenting that from lts.conf
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| 16:11 | <vagrantc> fat clients still default to X_SMART_COLOR_DEPTH=False?
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| 16:12 | <alkisg> Yeah we don't do anything for fat clients
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| 16:12 | It's just about thins. The new modesetting driver caused all these issues... it's on by default for intel cards now
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| 16:12 | All the other drivers work fine, only the modesetting has a lot of issues with 16 bpp
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| 16:13 | <vagrantc> i also noticed quite a few applications looked much uglier with 16-bit color depth
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| 16:13 | <alkisg> I haven't noticed that. With 8bpp sure, but not with 16
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| 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?
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| 19:04 | (assuming that I'm using one of the fat clients)
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| 19:06 | <alkisg> Read the documentation in epoptes.org
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| 19:06 | There's a page just for that
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| 19:07 | <mwalters> oh, I didn't see it on the bottom, thanks
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| 19:40 | <Hyperbyte> alkisg, hi
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| 19:40 | I asked before, but how do I actually switch from vanilla ltsp to ltsp-pnp?
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| 19:41 | Do I add some ppa or...?
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| 19:41 | And which packages do I remove and which do I install?
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| 19:41 | <||cw> !install
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| 19:41 | <ltsp> install: http://wiki.ltsp.org/wiki/Installation/Ubuntu for Ubuntu, or http://wiki.ltsp.org/wiki/Installation for other distributions
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| 19:42 | <||cw> looks like you just rebuild the image
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| 19:43 | <Hyperbyte> Looks like I install ltsp-client
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| 19:43 | rm -rf /opt/ltsp/
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| 19:44 | And ltsp-update-image
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| 19:46 | Thanks ||cw
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| 19:47 | I assume LTSP works fine with Ubuntu 18?
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| 19:52 | <||cw> with the PPA listed at that link, it should
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| 20:05 | <Hyperbyte> Hmmm
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| 20:05 | Thanks again
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