/srv/irclogs.ubuntu.com/2009/05/24/#edubuntu.txt

=== jeiworth_ is now known as jeiworth
=== alkisg1 is now known as alkisg
stan_hello12:17
=== stan_ is now known as extremity
serenityhi there13:25
serenityis anyone of you using a whiteboard together with a wiimote?13:25
nubaeserenity: funny u should ask that14:07
nubaeI am in the process now of setting one up14:07
nubaehave the infrared pens here and the wiimote with the software14:08
nubaebut its windows :-/14:08
serenity:)14:08
serenityi have ir pen and wiimote here, but none of my software wants to connect. Moving the mouse works fine14:09
Ahmuck_nubae: there is linux software out there for the wii whiteboard14:41
nubaeAhmuck yeah I know, its just where I am deploying they use windows, so had to be windows based16:18
alpharesearchHello16:43
alpharesearchis it possible to start application in full screen in edubuntu?16:44
alpharesearchfor example if my 2 year old plays potato guy I don't want he to close the window...16:45
alpharesearchor start other applications16:45
alpharesearchso it would be good to have him lock down to just one window16:45
alpharesearchit would also a good feature to have a keyboard lock, so only keys go to the application but not to X system16:46
nubaealpharesearch: take a look at pessulus to lock down stuff16:46
nubaethink we call it lockdown manager now16:47
alpharesearchbecause he likes toohh, I found the lockdown editor...16:48
alkisg1There's a guest mode in recent ubuntu versions, that's fine for this thing...16:49
alkisg1I use it when my wife wants to feed my 3 y.o. son while playing on my pc :)16:50
nubaeoh kiosk mode is like that 2 I guess16:50
alpharesearchhow you turn kiosk mode on?16:51
alkisg1(the guest mode is 2 clicks away, no need to log off)16:51
alpharesearchthe pc is dedicated for the kids anyway, the main account is like a guest account16:52
alpharesearchbut if the window closes all the work is lost and the kid could get sad16:53
=== alkisg1 is now known as alkisg
alpharesearchi want to start a application for the kid and lock the pc down, let the kid play and come back later and unlock and may start a different application16:54
alkisgAh, ok. Well you can set the key for full-screen in gnome keyboard shortcuts, e.g. I've set it to Alt+F1116:54
alkisg...and I don't know if/how it's feasible to direct input only to a specific app.16:55
alpharesearchthanks for the keyboard shortcut solution!!! Linux has all the solution build in, it is just always had to find the stuff ;)16:57
alkisgThere's also the possibility to specify that this app always stays on top, that would also help a little bit16:58
alpharesearchI just tried the always on top and with the alt+F11 i was not able to switch back... I had to close the game17:00
alkisgHm? I didn't get what you said17:01
alkisgI've tried both and work fine for me.17:01
alpharesearchI messed it up, because I also pressed alt+tab and this alt+F11 again and now it locks in full screen???17:03
alkisgNo, just click on it to get the focus on this window again, and with alt+f11 you'll be able to restore it17:04
alpharesearchOK I got it, I need to click with the mouse on the window once...17:05
=== nubae1 is now known as Nuba1
=== Nuba1 is now known as nubae
alpharesearchalkisg: how can I get the full screen to work with tux paint... the ALT+F11 is not working?17:17
alkisgI don't have it installed, I don't know, but I think it has a --full-screen command line option or something.17:22
alpharesearchyes, you are right again... there is a --fullscreen command line argument...17:26
skipjackHello18:16
skipjackI  think I have some Problems with video/sound on thinclient. If I play a Video file the video and sound, the video beginns to slow down ( thicken ) and if I play only a Audio File all things sounds good18:20
skipjackany idea?18:20
alkisg" the video beginns to slow down ( thicken ) " ==> you mean the audio?18:23
skipjackno the Video of the Video file is not viewable, only some frames18:24
skipjackIt beginns tu interruppt18:24
skipjackand a momentlong there is no sound / and no Video ..18:24
alkisgSo that would also be true if the video didn't contain any audio?18:25
skipjackI think the Video is okay when I disabled sound.18:27
skipjackIt could be that I need a faster network?18:28
skipjackI have here 100mbit18:28
skipjackand currently only 1 client18:28
alkisgThe video needs much more bandwidth than the audio18:28
skipjackyes.18:29
skipjackI think I need 1Gbit18:29
alkisgSometimes pulseaudio needs a lot of cpu on the client, though, (there's a bug in launchpad for this), maybe that's your trouble18:29
skipjackoh okay ;)18:29
skipjackhm18:29
skipjackI will check18:29
alkisgDo you have xv enabled?18:29
alkisg(run xvinfo on a terminal on the client)18:30
pygihighvoltage: poke18:30
pygiogra_: just saw you in the lobby ... I think :)18:30
skipjackWhen I play a Video, it takes a long time to close a window. Could be network traffic or some missmatch config?=18:31
alkisgThat's CPU, usually18:31
alkisgDo you have LDM_DIRECTX=true or false?18:31
skipjacktrue18:31
alkisg...and how old is this client?18:31
alkisg(cpu specs?)18:31
skipjackIntel Celeron 1200Mhz18:31
alkisgHow do you play the video? In which program?18:32
skipjackxvinfo (running in an Xterm on thinclient: gives me much output )18:32
skipjackvideo Lan18:32
alkisgSo all look fine...18:32
skipjackhm okay,18:32
alkisgAre you _sure_ that LDM_DIRECTX=true?18:33
skipjackShould I install videolan ( vlc) as localap?18:33
alkisgE.g. you may have forgotten the [default] section on top...18:33
alkisg...or maybe you put lts.conf in the wrong path...18:34
skipjackhttp://rafb.net/p/cRvSgM43.html18:34
skipjackmy lts.conf18:34
alkisgAh, nvidia :)18:34
skipjackhehe okay?18:35
alkisgDid you actually install the nvidia drivers on the chroot?18:35
skipjackyes18:35
skipjackI think the installation is correct. I add to rc.local @ thinclient the insmod command for nvidia.ko18:36
skipjackand add rc2.d S17rc.local18:36
alkisgHmmm you have a local xterm handy, to try: getltscfg -a18:36
alkisg?18:36
alkisg...but it should be local, not running on the server...18:36
skipjackokay18:36
skipjackhm whou can I do this? because thinclient hast X / connected to server.18:37
alkisgYou supposedly have SCREEN_02=shell,18:37
skipjackltsp-localapps xterm18:38
alkisgso you should be able to switch to it with ctrl+alt+F218:38
alkisgltsp-localapps xterm is also good if you run >=8.1018:38
skipjackoh okay, so I don't need an local X18:38
skipjackokay18:38
skipjackI see the output18:38
alkisgOK then. Try to run "top" in local xterm while playing the video, to see the cpu usage18:39
pygihighvoltage: please call/sms me/whatever when you get this, cause my sms is not reaching you :p18:39
skipjackokay18:40
skipjackXorg has 98.8% CPU use18:40
alkisgSo no hw acceleration...18:40
skipjackI play currently the Video without sound..18:40
alkisg...so probably no nvidia drivers18:40
skipjackokay?18:41
skipjackhm but, the Xserver does not start when I don't load nvidia driver18:41
alkisgAh, skipjack, also try with X_COLOR_DEPTH=1618:53
alkisgIt should need a little less cpu18:53
alkisgskipjack: when I tried with nvidia drivers in the chroot, I also needed MODULE_01=nvidia and  X4_MODULE_01=glx18:56
alkisg(in lts.conf)18:56
skipjackokay, the Load "glx" is in my xorg.conf and the module is loaded19:01
skipjackbut I will reduce to 1619:01
skipjackhmm20:34
skipjackis there an good way to test nvidia hardware Acceleration on thinclient?20:36
skipjackalkisg: okay now I have reinstalled nvidia driver and I think there must now Hardware Support on.20:49
alkisgskipjack: ok, see the cpu usage, it should be really low for playing xv video20:50
skipjackthe CPU hast 48% when I watching an Movie ( without Sound output )20:50
alkisgErm, ok, so the other 50% is idle?20:50
skipjacktop shows me 50% for Xorg20:50
alkisgSee the "idle" part20:51
skipjackokay20:51
alkisgE.g. "80.8%id"20:51
skipjack41,7%id20:52
skipjack.. and so on20:52
alkisgOK, should be more than enough for audio20:52
alkisgSo, if you turn on audio, you still get lag on the video?20:52
skipjackhm okay, it could be also an misstake of Hardware Acceleration, because I have reduce to 16bit20:52
skipjackhm I have also lag on video20:52
alkisgNow see the bandwidth20:52
alkisgRun sudo apt-get install iftop on the server and then sudo iftop20:53
alkisg(while the video plays)20:53
skipjackokay20:54
alkisgIf you have hw acceleration (xv playback), then the bandwidth is WIDTHxHEIGHTxFRAMES_PER_SECONDx1220:54
alkisgbecause usually the xv mode selected only uses 12 bits per pixel20:54
alkisg...and that's independent of the window size, it only depends on the original video size.20:55
skipjackhmm okay, em xv module, so vlc should use xv ?20:55
alkisgYes. You may try with totem if in doubt...20:55
alkisgIf xv isn't used, then 100mbit is too little for video playback20:56
skipjackokay20:56
skipjack;)20:56
skipjackhehe t20:56
skipjacktotem played iot better20:56
skipjackbut not perfect..20:56
skipjackhmm wait lets look a while20:57
alkisgWhat's the video attributes?20:57
alkisgwidth, height, fps?20:57
skipjackRIFF (little-endian) data, AVI, 640 x 352, 25.00 fps, video: XviD, audio: MPEG-1 Layer 3 (stereo, 48000 Hz)20:58
alkisgFor xv in vlc: Tools > Preferences > Video > Output : XVideo extension video output20:58
skipjackof Video File, and the Screen Resolution: 1920x120020:59
skipjackokay this is what I have seleced for an test.20:59
alkisgThat's 68Mbps, it should be playing perfectly20:59
skipjackbut then vlc crashed with (wait I generate the message)20:59
skipjackokay, it was playing good / thing we can call it perfect20:59
alkisgAh, and a few more for the audio21:00
alkisgStill should play ok21:00
skipjackbut now it's stopped playing withe message "Connection Lost"21:00
alkisgThat's not good :)21:00
alkisgThat's with totem or vlc?21:00
skipjackthat was totem21:00
skipjackI think there is an trouble with pulse audi21:01
skipjackbecause after this disconnect message, pulseaudio is crahsed21:01
skipjackI have now no sound on ThinClient21:01
alkisgWhat ubuntu version is that?21:01
skipjackbut the Video is played perfect21:01
skipjack9.0421:02
alkisgThere was a bug fix about oss and /dev/snd, I don't know if it has anything to do with what you're experiencing. The fix is in stgraber's repository21:02
alkisg...and that's about as far as I can help, I'm not experienced enough to debug pulseaudio problems :)21:03
alkisgIf it persists, try in #ltsp21:03
skipjackhttp://nopaste.php-q.net/24406621:03
skipjackokay21:04
skipjackhmm21:04
alkisgYeah, it looks like pulse crashed and that was the cause of the disconnection21:04
alkisgAh, skipjack, you may also want to reboot the client, play the video and check the CPU usage again21:06
alkisgBecause there's also a bug where pulseaudio needs *a lot* of cpu, if it affects you then you should use a different resampling method21:06
skipjackokay21:07
skipjackclient is restarting21:07
skipjackalkisg: okay client is back21:10
skipjackWhat can I do for debugin now?21:10
alkisgskipjack: run `top` locally on the client (localapps xterm) and play again the video, and see the idle cpu21:12
alkisgalso, run iftop on the server to monitor the bandwidth21:12
alkisg(that shouldn't be a problem though)21:12
skipjackokay21:12
skipjackwait, musst first read where iftop what displayed..21:13
skipjackhmm21:23
skipjackhard to debug, after few secs. totem stop playing because pulseaudio is crashing?21:23
skipjackcpu idle is in this time: 58%21:24
skipjack58%id21:24
alkisgok, go to #ltsp, maybe someone will guide you on how to interpret the pulseaudio logs21:24
skipjackokay, but where are the pulseaudio logs?21:25
pygihi folks :p22:35
pygithe evil highvoltage folks and stgraber and others :p22:35
skipjackis it possible to run skype on ThinClients? .. I think this must run as localapp or?23:28

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