/srv/irclogs.ubuntu.com/2011/02/20/#edubuntu.txt

alkisgUnfinished description at https://blueprints.launchpad.net/ubuntu/+spec/packageselection-edubuntu-n-seed-review01:34
stgraberhmm, indeed, fixed.01:38
highvolt1geheh01:42
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mhall119highvoltage: have you had a chance to do anything with debmower?04:27
=== Nubae is now known as Nubae_away
highvoltagemhall119: yep, worked on it a bit on Friday, busy implementing the LXC parts that will isolate everything from the host, not completed yet but it's happening :)13:55
=== Nubae_away is now known as Nubae
Firemouthhello17:46
Firemouthi'm having some performance problems with client computers using edubuntu17:46
Firemouthi have two identical laptops, one is the server and one is booting off the network17:47
Firemouthim trying to use Tux Typing17:47
Firemouthit works fine on the server laptop17:47
Firemouthbut its a slide show on the client17:47
Firemouthanyone have any suggestions on how to improve the performace on the client laptop?17:48
Firemouthmaybe a step in the right direction... i verified the server is connected at 100mbits18:26
Firemouthis there a way i can check to see what speed the client is connected to the network?18:26
Firemouthit _should_ be connected at the same speed being the same hardware but i'd like to verify it so i can eliminate that as being a source of the problem18:27
alkisgFiremouth: are you using LTSP?18:31
Firemouthyes18:31
alkisgDo you have LDM_DIRECTX=True in lts.conf?18:31
Firemouthi do not know, i will check, do you know where i'd find that file to save me some time looking for it? :)18:31
alkisgSure, do this:18:32
alkisgsudo gedit /var/lib/tftpboot/ltsp/i386/lts.conf18:32
alkisgAnd put the following into that file, if it's empty:18:32
alkisg[Default]18:32
alkisgLDM_DIRECTX=True18:32
alkisgThen reboot the client, you should see great improvement.18:32
alkisgBUT there's a security cost, so after trying it, go and read the ltsp docs18:32
Firemouthits a local lan so security isn't a concern18:33
Firemouthk got it in there, rebooting client18:33
Firemouthhmm18:35
Firemouthnot seeing any improvement18:35
Firemouthdo i need to reboot anything on the server?18:35
Firemouthi did a full reboot of the client18:35
alkisgJust the client18:36
Firemouthhm18:36
alkisgOn the client, open a gnome terminal18:36
alkisgThere, run this command: ltsp-localapps xterm18:36
alkisgAn xterm will open18:36
alkisgOn that xterm, run this command: getltscfg -a18:36
alkisgAnd paste the contents18:36
Firemouthsays its not currently installed18:37
alkisgYou missed something18:37
alkisgDid an xterm open?18:37
Firemouthsorry i must be missing something18:37
Firemouthi did Applications -> Accessories -> Terminal18:38
Firemouthare you looking for something different?18:38
Firemouthoh crap18:38
Firemouthi missed a step, sorry18:38
alkisg:)18:38
Firemouthok18:38
Firemouthgot the xterm jup18:38
Firemouthup*18:38
alkisgThat's called a "local xterm". Run that `getltscfg -a` command there.18:39
FiremouthLDM_DIRECTX="True"18:39
Firemouthexport LDM_DIRECTX18:39
alkisgOK. Continue with: lspci -nn -k | grep -A 2 VGA18:39
Firemouth01:00.0 VGA compatible controller [0300]: nVidia Corporation G72M [GeForce Go 7400] [10de:01d8] (reva1)18:41
FiremouthSubsystem: Sony Corporation Device [104d:81e6]18:41
FiremouthKernel driver in use: nouveau18:41
alkisgOK, I don't see anything bad there18:42
Firemouthis there a way to confirm the client is connected @ 100mbits ?18:42
alkisgE.g. you should be able to watch full screen video with no lost frames18:42
alkisgSure, with the ip command18:42
alkisgLet me find the exact syntax...18:42
alkisg(so that you don't have to install ethtool...)18:43
Firemouthoh18:43
Firemouthalready installed it18:43
alkisgIn the chroot?18:43
Firemouthnot sure, i did sudo apt-get install ethtool on the server18:43
alkisgThen nope :)18:43
Firemouthhehe k18:43
alkisgHmmm more difficult than I thought :D18:48
alkisgOK, try this:18:48
Firemouthyeah i was playing with it, not getting anywhere18:48
alkisgOpen lts.conf again, and add this at its bottom:18:48
Firemouthk18:48
alkisgSCREEN_02=shell18:48
alkisgReboot the client.18:48
alkisgWhen it boots, press alt+ctrl+f218:48
alkisgThere, run: apt-get install ethtool18:48
alkisgAnd then: ethtool eth018:48
Firemouthk18:49
Firemouthinstalling...18:50
Firemouthor so i thought, doing an update18:50
Firemouththats better18:51
alkisg(the installation there is not permanent, it's the exported disk which is like a tmpfs )18:51
Firemouthor not18:52
Firemouthah18:52
Firemouthok well its not able to get it18:52
Firemouth:-/18:52
Firemouthit can pign google18:52
Firemouthso dns / routing / internet access is good18:52
Firemouthwent in just fine on the server18:53
alkisgapt-get update && apt-get install ethtool, can't get ethtool?18:53
Firemouthtrying18:53
Firemouthi ran those two separately already thought18:53
Firemouthupdate then install18:53
alkisgOK18:53
alkisgIf your server has the same arch, try scp user@server:/usr/sbin/ethtool /tmp/18:54
FiremouthFailed to fetch http://ftpmaster.internal/ubuntu/pool/main/e/ethtool/ethtool_2.6.34-2_i386.deb Size mismatch18:54
Firemouththat domain name looks wrong eh18:54
alkisgAh it's your sources.list18:55
alkisgYou can scp it from the server if you want18:55
Firemouthk trying that18:55
alkisg/etc/apt/sources.list18:55
Firemouthhm18:56
Firemouthno such file or directory18:56
Firemouth(on the ethtool)18:56
alkisgTry `ls /usr/sbin/ethtool` on the server18:57
Firemouthno such file or dir18:57
alkisgDidn't you say you installed it?18:57
alkisgsudo apt-get install ethtool18:58
Firemouthgot the sources18:58
Firemouthsure did18:58
Firemouthyeah i used it to cehck the link speed on the server18:58
alkisgwhich ethtool18:58
alkisgThat tells you where it's installed18:59
alkisgIt should be in /usr/sbin/ethtool18:59
Firemouth/sbin/ethtool18:59
Firemouthim trying to do the update / install again18:59
alkisgIs that edubuntu? Which version?18:59
alkisgIn my Lucid, it's in /usr/sbin/ethtool18:59
Firemouthyup, edubuntu18:59
Firemouth10.1019:00
Firemouthbut19:00
Firemouthi got the ethtool installed on the client by copying the source file19:00
Firemouthshowing 100mbits19:00
Firemouthso thats not it19:00
alkisgRight. So you're as good as it gets19:00
alkisgE.g. if you try to play a divx video on the client, you should be able to watch it full screen with no dropped frames19:00
Firemouthinteresting19:01
Firemouthtux typing doestn want to seem to do it19:01
Firemouthi'd like to try testing something like you're saying, any suggestions how to easily test the video liek you're saying?19:01
Firemouthtry youtube or something?19:01
alkisgBtw seems that ethtool got moved from lucid to maverick: http://packages.ubuntu.com/lucid/i386/ethtool/filelist vs http://packages.ubuntu.com/maverick/i386/ethtool/filelist19:01
alkisgSo that's why you couldn't find it in /usr/sbin/ethtool19:02
Firemouthahhh19:02
alkisgNot flash19:02
alkisgOpen something in totem19:02
Firemouthk, gotta erboot the client, i removed taht shell line19:02
alkisgNo need keep it till you get it right19:03
alkisgYou can return to your GUI with alt+ctrl+f719:03
Firemouthoh19:03
Firemouthhm there arent any sample videos on here are there?19:04
Firemouth(this is basically a fresh install)19:04
alkisgNo idea, just get one from the net, e.g. http://www.greektube.org/download.php?vid=8968319:06
Firemouthk downloading19:07
Firemouthhm19:11
Firemouthneeds some codecs19:11
Firemouthtries to install them but fails19:12
Firemouthuntrusted packages19:12
Firemouthand just fails lol19:12
Firemouthlemme try something else19:12
Firemouthand im drawing a total blank lol19:13
Firemouthk i think i got soemthign to test19:16
Firemouthgimmie just a few min19:16
Firemouthi have an avi and wmv19:17
Firemouthgood grief19:21
Firemouthi cant install these plugins19:21
Firemouthgstreamer0.10-plugins-ugly19:21
Firemouthgstreamer0.10-ffmpeg19:21
Firemouthgstreamer0.10-fluendo-mp319:22
Firemouthok, gpupdate looks like it fixed taht problem19:25
Firemouthwow19:27
Firemouththere it goes19:27
Firemouthwatching clerks no problem19:27
Firemouththats amazing19:28
alkisgRight. So your setup is fine.19:28
alkisgAnything else is app specific19:28
Firemouthwell that just sucks then, lol19:28
alkisgE.g. full screen flash sucks because it doesn't use XV19:28
Firemouthgotcha19:28
alkisgSDL also sucks sometimes (tux* uses SDL afaik)19:28
Firemouthi guess i dont get it then, rhetorical question.... why would they package edubuntu with tux typing if it cant be used via thin client...19:29
Firemouthunless it just wasnt meant to be used that way?19:29
Firemouthi'm new to this virtual desktop stuff so i'm not well versed on the limitations19:30
Firemouththis is just amazing to me though19:30
Firemouthstreaming a movie19:30
Firemouth(i'm easily amazed at times)19:30
alkisgThat's not streaming in the usual sense19:31
alkisgIt's just remote X19:31
Firemouthah19:31
Firemouthhowever it's doing it, its doing it ;)19:32
alkisgSo while the movie is encoded at e.g. 1 mbps, you're using 50 mbps19:32
alkisgBecause the movie travels unencoded, uncompressed19:32
Firemouthinteresting19:32
Firemouthserver is holding steady @ 10.9mbits19:32
alkisgSo all the decoding happens on the server, so your client could be e.g. just 300 mhz19:32
alkisgThen it's a small movie. You can use any movie up to 95 mbps with your current network19:33
Firemouthyeah its a 600mbish file19:34
Firemouthnot the best copy, hehe19:34
Firemouthsweet19:36
Firemouthwell thank you for all your help19:36
alkisgnp19:36
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