IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 1 November 2014 (all times are UTC)
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| 10:54 | <minetreu> good to be here - morning ppl
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| 10:58 | i stuck on thin client configuration eg. ldm_directx=true will bring the corr display driver, false the gallium pipe, anyhow while =true rendering is faulty... could somebody help?
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| 12:02 | <minetreu> hello khildin
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| 12:02 | <khildin> morning
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| 12:05 | <minetreu> can u tell me about the channel? will i be able to find help on my question above?
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| 12:15 | my setup is this: 2 nic server 1000Mbit quadCore/8Gb ram, ubuntu 14.04 gnome-shell driving up to 10 thin-clients (local - vpn as a goal)
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| 12:44 | <minetreu> i am back, greetings :)
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| 12:50 | <alkisg_web> minetreu: have you read about ltsp diskless fat clients?
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| 13:10 | <minetreu> hi alkisg_web, probably yes. do have some specific in your mind? thin enviroment is much more flexible to administrate, what you say?
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| 15:38 | <minetreu> hi
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| 15:42 | any pro's in?
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| 15:43 | <Hyperbyte> !ask
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| 15:43 | <ltsp> ask: Don't ask to ask a question, simply ask it, and if someone knows the answer, they'll respond. Please hang around for at least a full hour after asking a question, as not everybody constantly monitors the channel.
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| 15:44 | <minetreu> nice
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| 15:45 | i stuck on thin client configuration eg. ldm_directx=true will bring the corr display driver, false the gallium pipe, anyhow while =true rendering is faulty... could somebody help?
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| 15:45 | my setup is this: 2 nic server 1000Mbit quadCore/8Gb ram, ubuntu 14.04 gnome-shell driving up to 10 thin-clients (local - vpn as a goal)
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| 16:06 | <alkisg_web> "13:10 <minetreu> hi alkisg_web, probably yes. do have some specific in your mind? thin enviroment is much more flexible to administrate, what you say?" ==> thin clients get graphics issues etc like the ones you mentioned
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| 16:06 | ltsp fat clients are as easy to configure as thin clients, and don't get the graphics/cpu/net issues
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| 16:06 | e.g.
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| 16:06 | !flash
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| 16:06 | <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
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| 16:06 | <alkisg_web> Flash, 3d etc are not an issue at all with ltsp fat clients...
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| 16:07 | What are your client specs? CPU, RAM?
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| 16:09 | <minetreu> they would fit a fatclient for sure, the thing is, right now i log onto any user which is serverside available, i use the desk-environment as well
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| 16:10 | installations are possible and without rebuilding the ltsp-image
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| 16:11 | somewghat like rdesktop usage. but if i chroot and install the gnome-shell, update the image and so on... then i have a fat-client setup, right
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| 16:12 | <alkisg_web> Right, either gnome-shell or gnome-flashback or any other environment
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| 16:12 | !fatclients
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| 16:12 | <ltsp> fatclients: You may find some info about the Ubuntu/LTSP implementation of fat clients at https://help.ubuntu.com/community/UbuntuLTSP/FatClients
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| 16:12 | <alkisg_web> !ltsp-pnp
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| 16:12 | <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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| 16:13 | <alkisg_web> Any remote-desktop technology will suffer from bandwidth, cpu, 3d etc issues, it's your call if you prefer that instead of full fat clients
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| 16:13 | I.e. to save one ltsp-update-image...
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| 16:15 | <minetreu> so you say, by setting ldm_directx=true the thin-clients will lack of 3d etc, due to bandwith limits?
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| 16:20 | <alkisg_web> minetreu: no, not only because of bandwidth, but because of X, dri etc limitations too
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| 16:22 | E.g. www.virtualgl.org tries to implement 3d over the network, but doesn't work always, and it's not really fast either
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| 16:23 | <minetreu> i guess i only have probs wih the desktop-manager... playing a mp4 in vlc, flash in ff is flawless. it is only no correct rendering of the desktop-manager
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| 16:24 | <alkisg_web> You can try another desktop environment like gnome-flashback if you're satisfied with the rest
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| 16:24 | xvideo is ok if you have 50 mbps per client, unless of course if you try to playback hd movies which can't be done in gigabit network
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| 16:24 | flash video isn't ok
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| 16:24 | <minetreu> means , the app menu (gnome-shell) is not available, borders arents correct, seach functions are not present
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| 16:25 | <alkisg_web> right, use gnome-flashback, or lxde, or xfce etc
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| 16:25 | <minetreu> thats with ldm_directx=True
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| 16:25 | <alkisg_web> Yup
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| 16:26 | <minetreu> set to false, the shell is absolutely shown correct but stuttering, due to using this gallium 0.4 llvm pipe
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| 16:26 | <alkisg_web> Yup
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| 16:27 | You can do the same with LIBGL_ALWAYS_SOFTWARE=1 with ldm_directx=true too
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| 16:27 | It's still lag due to llvmpipe
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| 16:27 | *It'll
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| 16:27 | Or, with LIBGL_ALWAYS_INDIRECT=1
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| 18:55 | <minetreu> c'mon a masterpiece of software and no chance of fullfilling my wish?
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| 18:56 | <vagrantc> ?
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| 19:08 | <minetreu> hi vagrant, i just addaed these line to a previous convo... my log showed something i wont take for real
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| 19:09 | alkisg_web: i will try the .cnf option LIBGL_ALWAYS_SOFTWARE=1
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| 19:11 | it is not an option for me to fallback-gnome or lxde...
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| 19:17 | <vagrantc> you're needing some sort of GL environment on a thin client?
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| 19:22 | <minetreu> yep
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| 19:24 | but hey, wait... i set up my server and i am able to boot clients, previous i build a clean image with no chrootet installations at all. so i guess this means thin is the delivered image, due to non-persistent xsession.
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| 19:26 | on the clients i am now able to manage all administrative stuff real time. including new app installations. at that point i loose track on how the system works
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| 19:28 | kernel boots from /var/lib/tftp... ? used image is located at /opt/ltsp/arch.../image/ ? and persistend space adds from server dirs???
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| 19:40 | <vagrantc> sounds like you're booting fat clients, probably with the ltsp-pnp method
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| 19:41 | in which case, any application installs running on the client will only last until reboot- they're installed in tmpfs.
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| 19:41 | !ltsp-pnp
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| 19:41 | <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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| 19:42 | <vagrantc> the images are usually stored in /opt/ltsp/images/ARCH.img
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| 19:42 | <epoptes_user2> Hi. If the server is started up after clients, is there a way for the server to 'retrieve' the clients ?
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| 19:42 | <vagrantc> you can create the images from /opt/ltsp/ARCH (classic NBD method) or from the server install at /
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| 19:43 | <epoptes_user2> (i was speaking of epoptes)
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| 19:43 | <vagrantc> epoptes_user2: not sure if there is ... the clients connect to the server.
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| 19:43 | * vagrantc was speaking to minetreu | |
| 19:44 | <epoptes_user2> ok, it's what i thought
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| 19:45 | <vagrantc> epoptes_user2: it probably wouldn't be hard to get epoptes-client to re-poll the server periodically, but there isn't to my knowledge a way for the server to poll for available clients
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| 19:45 | might be able to set up an avahi service or something...
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| 19:46 | <epoptes_user2> about epoptes again, is there a way to authorize all users of the server to launch the UI
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| 19:46 | all the users of the server are from a LDAP
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| 19:46 | <vagrantc> so everyone can monitor everyone?
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| 19:46 | <epoptes_user2> and so i can't really add them one by one to the epoptes group
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| 19:46 | yes
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| 19:46 | the client will only be launched by a teacher
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| 19:47 | sorry, the server *
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| 19:48 | actually, my college is using a distro called Samba-Edu, when a logs into the domain, the ubuntu client creates a local home profile
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| 19:48 | <vagrantc> can't you use LDAP to add all users to the epoptes group?
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| 19:49 | or use pam_group to add all users to epoptes?
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| 19:50 | <epoptes_user2> i could add the teachers manually in /etc/group
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| 19:50 | something like a hundred colleagues
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| 19:50 | i didn't know the pam_group, i'm reading the manual
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| 19:51 | but i was wondering if there wasn't a simpler way to do it
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| 19:51 | <vagrantc> simpler than what?
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| 19:52 | <vagrantc> pam_group can allow you to add all users to a group ... LDAP or other PAM authentication ought to be able to easily add all users or categories of users to a group...
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| 19:53 | <epoptes_user2> than editing the /etc/group file
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| 19:53 | not especially hard to do but pretty ugly
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| 19:53 | ok
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| 19:55 | is pam_group available on ubuntu ?
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| 19:59 | <vagrantc> yes
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| 21:21 | <minetreu> bye bye
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| 22:11 | opening time tomorrow??
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| 22:13 | <vagrantc> minetreu: opening time for what?
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