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


Channel log from 29 July 2018   (all times are UTC)

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07:53
<quinox>
alkisg: thanks for your efforts, the 18.04 installation was uneventful and the clients booted without problems. I did purge apparmor myself, is that because I added the PPA inside the chroot late instead of using --extra-mirror ?
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08:28
<alkisg>
quinox: do you mean that libreoffice didn't start and you had to purge it? My "solution" was to just put it in RM_SYSTEM_SERVICES, but I'm not sure if the release in the PPA contains that or not
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08:40
<quinox>
yeah that's precisely what I meant
08:40
alright, I'll see how that works on my system
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08:55
<quinox>
apparmor is mentioned inside the chroot's /usr/share/ltsp/init-ltsp.d/50-rm-system-services
08:57
I just left the office, I'll see what's going on inside a client tomorrow
08:59
if I understand that file correctly it's only mentioned in the section for thin clients
08:59* quinox checks the current version in git
09:01
<quinox>
yes, in master it's mentioned in the "remove from all clients" section
09:01
cool, cleared that up
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09:12
<derick_>
I am getting a kernel panic on the ltsp-client.
09:13
This is caused by a faulty vagrant box. Any idea on where should I look for the problem?
09:16
<quinox>
whatever module Vagrant uses?
09:17
it's a wrapper about virtualbox vmware etc right?
09:19
virtualbox for sure has kernel drivers which can spook the kernel
09:21
<derick_>
yes. Okay. How can i fix it.
09:22
I am facing this one for the first time.
09:22
<quinox>
I have no experience with hacking kernels and all that, so I'd Google the panic message (possible combined with "vagrant" or "virtualbox" etc)
09:23
if that doesn't help I would try upgrading or downgrading vagrant/virtualbox
09:23
<derick_>
good idea.
09:24
but downgrading vagrant box is a simpler one. I will try that first :p
09:24
<quinox>
if that doesn't help and the problem is limited to only 1 virtual machine I would toss just that machine
09:25
it's a great first move (y)
09:25
(y) = 👍
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14:02
<Yoyoyooo>
How do I get the Nouveau driver to work on LTSP fat clients? I did XSERVER = nouveau in lts.conf, however my fat client just reports "mei_me reset: reached maximal consecutive resets: disabling the device
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14:03
<Yoyoyooo>
The driver was working until I installed LibreOffice into the environment.
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14:04
<Yoyoyooo>
And I'm finding this issue to be quite common where installing certain packages breaks unrelated parts of the LTSP environment and renders it useless on some or all clients.
14:05
<alkisg>
Yoyoyooo: chrootless ltsp avoids all those weird chroot issues :)
14:06
But mei_me doesn't sound related to nouveau at all
14:06
<Yoyoyooo>
This is chrootless
14:06
<alkisg>
Isn't that "Intel VPRO remote access technology driver" ?
14:06
<Yoyoyooo>
I adopted chrootless in the end because I couldn't get chroots to work, or they broke even more easily.
14:06
<alkisg>
chrootless without libreoffice? Howdid you manage that?
14:06
<Yoyoyooo>
It's Nvidia open source driver
14:07
<alkisg>
Yoyoyooo: https://www.kernel.org/doc/Documentation/misc-devices/mei/mei.txt
14:07
mei isn't nvidia
14:07
It's intel management engine
14:07
<Yoyoyooo>
hmm
14:08
<alkisg>
Are you the one that started with a headless server? Maybe you should reconsider and start with a normal desktop installation, so that you make sure sane defaults for packages are there?
14:08
<Yoyoyooo>
I don't even like that I'm forced to use a DE and LDM
14:08
<alkisg>
Yet you have breakages, while all others don't
14:08
Go with the flow :)
14:09
<Yoyoyooo>
I have avoided the DE to use i3wm instead, however I found LDM seems to be an integral part of the LTSP environment.
14:09
<alkisg>
If you selectively install packages, you might end up missing some necessary ones, because they're not there in the default Dependencies, while they're there in the desktop cD seeds
14:09
<Yoyoyooo>
I can boot the environment on non-nvidia systems
14:09
<alkisg>
LDM is necessary for remote logins, yes
14:09
<Yoyoyooo>
So I'll keep it
14:09
But I really would like to avoid the DE
14:09
<alkisg>
But the login manager isn't related to the desktop environment
14:10
<Yoyoyooo>
Agreed
14:10
<alkisg>
So you can use i3wm with ltsp without issues
14:10
<Yoyoyooo>
Yeah
14:10
The only issue is getting LDM to come up on nvidia systems
14:10
<alkisg>
What's the result of `ubuntu-drivers list`?
14:10
<Yoyoyooo>
and this started after installing LibreOffice.
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14:11
<alkisg>
You probably got some dependencies and not others
14:11
Those selective installs are a nightmare
14:11
<Yoyoyooo>
Theres that command? I didn't know. This is a Debian system anyway, I decided not to use Ubuntu in the end as it just get in the way and I had no success with getting LTSP running properly on it.
14:11
<alkisg>
Ah, so you're not using the latest ltsp from the ppa, right?
14:11
<Yoyoyooo>
I found the guide outdated, etc
14:12
<alkisg>
Outdated? I wrote it last week
14:12
<Yoyoyooo>
Hmm, Well in that case...
14:12
next time I come to install LTSP on Ubuntu, I'll keep you updated.
14:12
I'm not using a PPA, no
14:12
<alkisg>
I've 1000+ installations; I can help if you need, but I don't really need a lot of feedback :)
14:13
Anyway, you're missing those fixes, after 5.18: https://git.launchpad.net/ltsp/log/
14:14
<Yoyoyooo>
I didn't have to change the DHCP defaults and I still got Proxy DHCP...
14:15
<alkisg>
And in any case, mei isn't related to nvidia, and I don't think the libreoffice is to blame; maybe a kernel or other package update went into ltsp-update-image and broke it
14:15
You can check using `ltsp-update-image -r /` to revert and/or checking /var/log/apt/history.log
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14:15
<Yoyoyooo>
hmm
14:16
Also, have a had success with running games such as Minecraft on Thinclients? I can't for the life of me get the game frames to stream to the thin clients faster enough, yet I got 1Gbps...
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14:17
<Yoyoyooo>
I'm trying to run Minecraft on a Pentium 4 Thinclient from 2003
14:18
<alkisg>
!flash
14:18
<ltsp>
flash: Yes, flash sucks. An HD full screen 30 fps video needs 2.5 Gbps bandwidth (1920×1080×4×30)! Make sure you have LDM_DIRECTX=True in your lts.conf file, or if it's just youtube you're after, try some flash replacing plugin like http://linterna-magica.nongnu.org
14:18
<alkisg>
See the number there,it's 2.5 gbps, 1 isn't enough
14:18
That's why we no longer recommend thin client installations :)
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14:18
<alkisg>
And with gl it's even worse
14:19
<Yoyoyooo>
I tried in Fat client mode, however the P4 couldn't handle it, and at the time I was desperate to play Minecraft with someone else.
14:19
<alkisg>
You might be able to do it if you use virtualgl, but it'll take you hours and hours, many enough to pay for a new pc instead
14:19
And I'm guessing it'll have frequent crashes etc
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14:20
<Yoyoyooo>
I can stream Full HD perfectly fun on thin clients, it's the graphics processing of vectors and things that it can't do
14:20
*fine
14:20
<alkisg>
The only way to make p4's run games etc in thin client mode well enough, would be with dedicated hardware on the server, that would create compressed video streams of the screen on the fly
14:21
So it wouldn't be remote xorg, it would be more like rdp/vnc
14:21
<Yoyoyooo>
hmm, I may consider it
14:21
and I'm gonna have a look into virtualgl too
14:21
<alkisg>
Sure, you could spend 5000€ in man-hours to save a pc that's worth less than 50€ :)
14:22
We have thousands of P4's here, and I'm not even considering investing into that
14:22
<Yoyoyooo>
I only play one game, that is Minecraft, so I wouldn't need the thinclients to be able to play other games, as long as I can get Minecraft as smooth as possible, I'm happy.
14:22
<alkisg>
That doesn't make it any easier at all
14:22
<Yoyoyooo>
Agreed
14:22
hmm
14:22
<alkisg>
Check virtualgl, it might give you something...
14:23
<Yoyoyooo>
It sounds interesting already
14:23
considering I have a beefy graphics server
14:23
with professional GPUs, not gaming ones
14:23
<alkisg>
It will be much more expensive to work on something else for 5 hours though, and buy a new pc with that money :)
14:24
*much more effective, sorry
14:25
<Yoyoyooo>
I'm happy with Minecraft running at 20FPS, so I might find a solution to aim for that as it's playable at that speed.
14:25* alkisg needs to go and waves :)
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17:45
<derick_>
Guys what DM would you recommend for debian ltsp serve?
17:46
I have tried xfce(browser does not work, terminal looks small and weird)
17:47
in lightdm I am unable to login
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