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


Channel log from 2 July 2015   (all times are UTC)

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15:53
<SofiaBg>
Hi there!
15:54
I am looking for some help for project in Sofia Bulgaria
15:56
<vagrantc>
!question | echo SofiaBg
15:56
<ltsp>
SofiaBg question: if you have a question about ltsp, please go ahead and ask it, and people will respond if they can. please also mention the linux distro and release you're using. :)
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18:31
<growland>
hello, I am running LTSP w Ubuntu 14.04. Thin Clients can play back audio just fine. However, I have a mic hooked up to the thin client and no sound seems to be recorded. I am running the scaled down windowmanager - FluxBox. Any ideas how I can troubleshoot? Do I need to install pulseaudio or something, even though sound playback is working fine?
18:32
<gehidore>
assuming alsa did you check if the device was muted in the inputs pane?
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18:34
<growland>
i ran alsamixer from the terminal (local) and it doesn't seem to be muted that I can tell
18:34
<alkisg>
If you're hearing audio, you already have pulseaudio installed... :) (or you have a setup that doesn't match what you're saying)
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18:40
<growland>
yeah I guess pulseaudio is installed. I installed audacity to try to record sound - it allows me to select 'pulse' or if I ran as root, I can select the 'HDA Intel' option, which is the motherboard. Nothing is ever recorded though.
18:40
(i've also been testing through a web browser at test.webrtc.org)
18:40
<alkisg>
First of all, don't run anything local wrt sound because it might collide with pulse
18:41
Second, are you using LDM?
18:41
Third, are you testing everything from a non-local terminal, that actually runs on the server?
18:41
env | grep PULSE
18:44
<growland>
i'm testing everything from a local term - localapps
18:45
<alkisg>
That might break pulse, don't do that
18:46
Well, ltsp aside, local sound should work even if you don't login to the server...
18:48
<growland>
i'm thinking even though sound playback is working, there is something messed up with pulseaudio
18:49
<alkisg>
If you're testing locally with alsa, you're not using pulseaudio
18:50
I think you should reboot and only test either locally with alsa or remotely via pulse, not both of them
18:51
Also, check that you haven't selected the "wrong" microphone, e.g. some have internal + external, some others front + back mic...
18:52
<gehidore>
^^
18:54
<growland>
yeah there is only one mic jack. In Audacity, under Recording ->Device it lists HDA Intel Analog, sysdeafult, pulse, and default. I've tried recording with all of them and none of them pick up sound.
18:57
<gehidore>
group issue perhaps? /me knows next to nothing specific about ubuntu
19:05
<quinox>
try pavucontrol maybe?
19:06
you can change the configuration there, enabling/disabling certain inputs
19:06
<gehidore>
^^
19:06
it still has more control over elements that others don't sadly
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19:21
<alkisg>
growland: there could be one mic jack but 2 virtual mics, for other motherboard cases that have 2 jacks
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19:27
<alkisg>
amixer scontents -c 0; amixer scontents -c 1
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19:29
<growland>
so i install pavucontrol...and it appears the mic is muted by default, which might be the issue
19:30
yeah that was it, oh boy.
19:31
<alkisg>
The amixer command will show you the name of the mic control so that you can put it to lts.conf for automatic unmute
19:31
<growland>
thank you for the help. ahh great!
19:32
hmm
19:32
invalid card number for amixer -c 0
19:32
1 also invalid
19:33
<alkisg>
amixer scontents without -c?
19:33
<growland>
ah wait
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19:36
<growland>
I guess 'Auto-Mute Mode' is the setting to change?
19:36
<alkisg>
!pastebin
19:36
<ltsp>
pastebin: the LTSP pastebin is at http://ltsp.pastebin.com. Please paste all text longer than a line or two to the pastebin, as it helps to reduce traffic in the channel. Don't forget to paste the URL of the text here.
19:36
<alkisg>
You could put the contents there... or, toggle it from pavucontrol and see
19:37
(plain amixer tells you the values)
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19:40
<gehidore>
following this guide, any idea what's actually missing from the configure the dhcp server section? the service fails complaining it's not got a device specified, but which needs the device specificatin, the ltsp conf or the root dhcpcd conf?
19:40* gehidore uploads the configs to ix.io
19:40
<alkisg>
Also copy/paste the exact error message
19:41
<gehidore>
well yar :D
19:41
I'm fully aware I'm overlooking something stupid at least
19:42
http://ix.io/jqP root dhcpd.conf
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19:42
<gehidore>
http://ix.io/jqQ ltsp dhcpd.conf
19:43
<alkisg>
There should be one /etc/default/*dhcp* something
19:43
And your server ip would help as well
19:44
<gehidore>
the "root" one is /etc/dhcp/dhcpd.conf which is the first one, I'll check default
19:44
<alkisg>
ip -oneline -family inet addr show
19:44
<gehidore>
oh I see the error message now, it wsa off my visual range of the monitor... I'll post everything anways
19:45
http://ix.io/jqR << systemctl status for the service
19:45
http://ix.io/jqS
19:45
just a vm at this point
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19:45
<alkisg>
You have a subnet of 192.168.67.x but no ip there
19:45
That's why it complains
19:46
Your ip is 10.0.2.15, either change the subnet or the ip so that they match
19:46
(or install a second virtual eth...)
19:47
<gehidore>
I'll try the second eth for giggles
19:47
<alkisg>
Assign a static ip of 192.168.67.1 to it
19:47
...what guid are you following?!
19:47
*guide
19:47
<gehidore>
the one I linked to above, for debian
19:48
https://wiki.debian.org/LTSP/Howto
19:48
that one
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19:49* alkisg didn't see the link before... anyway, where does it say about dhcpd.conf there?
19:49
<alkisg>
Ah, the default ltsp dhcpd.conf in debian contains 192.168.67.1? nice
19:49
<gehidore>
yar
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19:53
<gehidore>
that did it
19:53
told ya I was missing something blatant :(
19:56* alkisg waves
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19:58
<growland>
not having luck finding what value to put in lts.conf to unmute mic on boot. i set MIC_VOLUME to 100 in lts.conf but that had no effect
19:58
when thin client is rebooted, mic is muted again
19:58
<gehidore>
http://gehidore.net/ss/1435867092ZjFlZ.png so close...
19:58
<growland>
i looked at amixer before/after muting in pavcontrol, didn't see a difference in any values
20:02
<gehidore>
hrm almost like there is no tftp server, it dhcps up just fine but tftp open fails
20:02* gehidore googles
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20:37
<gehidore>
tftp wasn't running but when I start it the device booting pxe can't find an image to load... /me searches for the image on disk to tell tftp where to look
20:39
hrm the stuffs exist in /srv/tftp/ltsp/amd64 as expected
20:50
http://gehidore.net/ss/1435870192MmMzM.png
20:50
once tftpd was installed and enabled with /srv/tftp set as the tftp dir
20:52* gehidore installs tcpdump
20:58
<gehidore>
so figured it out
20:58
it's looking for a i386 image?
20:58
yet I built 64bit image and both are 64bit machines...
20:59
I see why
20:59
more idiocy with failing to fully read the config
20:59
:D
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21:03
<gehidore>
SUCCESS
21:08
thanks for the pointers work_alkisg this allowed me to understand a bit better what I need to do to package this for arch and use it with arch
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21:10
<warren>
hey folks
21:10* vagrantc waves
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21:10
<warren>
Is anyone available for hire to re-port the latest upstream LTSP to CentOS 7?
21:10
Has LTSP been already adapted to work with systemd on other distros?
21:11
<vagrantc>
works fine on debian
21:11
<warren>
ok, already with systemd ... then the port shouldn't be hard at all
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21:11
<vagrantc>
it may be using backwards compatibility rather than native systemd stuff
21:11
<warren>
even less of a delta than pre-systemd k12linux.org
21:11
oh
21:11
<vagrantc>
had to make a minor change for ltspfs
21:12
<warren>
is Debian heavily using the back compat stuff instead of .service files?
21:12
Red Hat switched like 99% of stuff
21:12
<vagrantc>
depends on the package
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21:27
<john_s>
how to I force LTSP on Debian 8 to use nbd rather than nfs ?
21:29
<gehidore>
john_s: https://wiki.debian.org/LTSP/Howto as far as I can tell it's outlined in the LTSP-PNP method?
21:33
<john_s>
gehidore: thanks I'll give ti a try
21:34
<gehidore>
john_s: tbh I haven't tried it I just made the mistake of reading that portion more than the portion I was trying :P
21:39
<john_s>
gehidore: I have been struggling to get a working ltsp going. I was using Deb 7 but I couldn't get the DE to work correctly so I thought I'd try it on Deb 8 but that defaults to NFS rather than NBD, directions are rather incomplete
21:40
<gehidore>
john_s: fair enough, I just completed the NFS setup and it works quite well, I was going to try the nbd setup next but that will have to wait until tomorrow sadly
21:41
I'm already miles behind on my other work
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21:44
<gehidore>
meh john_s now you got me playing with nbd, see what you've done?!
21:48
<john_s>
gehidore: sorry about that :-> I wanted to use nbd because it's supposed to be faster and I have 90 or so tc's I want to support
21:48
just booted with nfs and gnome3 seems responsive so at least I can continue to test
21:48
<gehidore>
+1
21:49
I'll let you know what I find if you stick around, assuming someone else doesn't solve your problem first
21:51
<john_s>
gehidore: thanks, I am pretty sure there is a command line option like rc-reconfigure nbd-server or something. I appreciate yoru help
21:57
<gehidore>
so far the conversion is going fine for me following those directions, only up to step 11 though..
21:57
<john_s>
wow, I just rebooted the server from the little power icon of the TC. Haven't seen that in about 10 years. Bug or feature...
21:57
<gehidore>
power icon of the TC?
21:58
<john_s>
gehidore: logged in as a user on the gnome desktop, when I went to log out, there is a little power icon that says "logoff" or "restart" I hit restart because I wanted to restart the TC. The whole server went down
22:00
<gehidore>
actually now that I think of it, mine did the same thing
22:00
<john_s>
yikes
22:00
<gehidore>
I thought I had just rebooted the wrong machine... but it did prompt for admin privs
22:00
for me
22:01
<john_s>
I'll try again
22:02
<gehidore>
bleh ran out of memory on the host
22:02
building the image
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22:07
<john_s>
gehidore: user error on my part, I am not supposed to hit the little power button, rather I was supposed to click on the test users name. Slightly unintutive I guess (at least for me). Ok, must go. Good luck!
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22:41* vagrantc wonders what distro john_s was running
22:51
<maldridge>
vagrantc: almost sure he's on ubuntu, I was talking to him in the early morning hours yesterday or day before
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22:52
<maldridge>
If I'm chaning the ldm theme, do I have to update the client image, or is that loaded over nfs/nbd
22:58
<vagrantc>
depends on how you're changing it
22:59
if you're just setting the theme in lts.conf, that should work, but if you've actually created or modified theme files, that requires rebuilding the image. if you're using NFS, there is no image to rebuild.
22:59
if you're using NBD, you have to rebuild the image any time you make changes in /opt/ltsp/*
23:00
and ltsp-pnp typically uses NBD
23:02
<gehidore>
vagrantc: debian8 he claimed
23:17
<maldridge>
I see, so as long as I'm doing things in /opt/ltsp, that needs a full image rebuild?