IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 3 August 2016 (all times are UTC)
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| 07:36 | <alkisg> bennabiy: compare the output of `env` in thin and fat clients, then try to run the menu from the command line so that you see its output in both cases, then try to set the same environment vars, if they are different, and run the menu again etc
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| 07:37 | Debugging programs is an ad-hoc procedure, it cannot be described too well (and without great amounts of time) in IRC
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| 07:37 | If it runs with x2go, it should be runnable in ltsp as well
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| 07:38 | Or, if it runs locally with ssh -X localhost
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| 13:04 | <bennabiy> alkisg: thank you.. I will try that
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| 14:03 | <bennabiy> alkisg: here is a diff of env variables from both environments (the first being the environment which works (with the user virtualm ) and the second with name typist which does not work (thin client)
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| 14:03 | alkisg: https://pastebin.mozilla.org/?diff=8889162
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| 14:25 | <bennabiy> Hmm, interesting. If I set LDM_DIRECTX=FALSE then the menu works... so it seems related to XForwarding
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| 16:28 | <bennabiy> alkisg: so the menu works if it is forwarded over SSH, but not DIRECT X
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| 16:32 | alkisg: here is a diff of the working vs non working on thin client. https://pastebin.mozilla.org/?diff=8889192 this is with the same user, same client, just one is directx and the other ssh
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| 18:15 | <julienfayad> Hello there, did anyone face issue with pulseaudio under a fat client ?
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| 18:15 | because now sound on my fat clients isn’t working as it should and it seems that the issue comes from pulseaudio (but I might be wrong)
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| 18:24 | <bennabiy> julienfayad: do you have proper group permissions for pulse? also, do you have lts.conf disabling audio for some reason?
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| 18:24 | <julienfayad> 1. group permission: I guess so, I left this as it is out of the box
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| 18:25 | 2. lts.conf have been checked and sound is enabled
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| 18:25 | I actually have sound if I run aplay -D plughw:1,0 /path/to/file
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| 18:25 | Device1,0 being my usb headseat
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| 18:26 | but the default sound device is not connected and so no sound can be heard out of it
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| 18:26 | for some reason, if I select the output device in the Sound preferences and then close the sound preferences, when I open it back, the output device is back to the default one (HDA Intel PCH)
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| 18:27 | so I tried to follow this solution: http://askubuntu.com/questions/14077/how-can-i-change-the-default-audio-device-from-command-line
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| 18:27 | but pacmd keeps on returning me errors (not able to connect)
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| 18:27 | after I checked it seemed pulseaudio wasn’t running
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| 18:28 | if I try to run it as the fat client user (in terminal) I get a “Failed to create secure directory (/home/{username}/.config/pulse)
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| 18:29 | yet I can run pulseaudio as root (using epoptes) but after some seconds I get an error with a procotole-native.c: connection died. error
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| 18:30 | voila, that’s all I have so far and I’m not really sure where to start bennabiy, any idea ?
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| 18:32 | <bennabiy> julienfayad: What distribution are you running?
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| 18:32 | <julienfayad> ubuntu mate 16.04
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| 18:32 | and it’s ltsp pnp
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| 18:33 | <bennabiy> Are you using NBD for your home directory?
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| 18:33 | <julienfayad> as I said, the sound works… (for instance, if an application gives me the option to configure sound devices, I can configure it to use my usb headset. But the general sound for the whole station doesn’t work, so youtube videos won’t output any sound)
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| 18:33 | <bennabiy> or NFS?
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| 18:34 | <julienfayad> it defaults to NBD I think and I left it like that
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| 18:34 | how can double check though ?
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| 18:34 | <bennabiy> If you defaulted, it would be NBD
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| 18:34 | <julienfayad> yup defaulted
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| 18:37 | <bennabiy> And the issue is that general system sound is not being heard, but if you select your headset, it will give you sound. What if you just change the default sound device in "Control Center / Sound"
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| 18:38 | alkisg might have more wisdom on the matter, as I do not use fat clients much
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| 18:38 | <julienfayad> well in the sound preference I can see my second device, selecting it as the output device doesn’t do much though…
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| 18:39 | and as I wrote earlier, when I close and open the sound preference window back, the settings are back to default
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| 18:57 | <bennabiy> It sounds like perhaps root might have accidentally taken permissions from your sound folder and now your user cannot write to the folder... I would check all permissions on your home folder and if need be (and if you consider it wise) do a sudo chown -R $USER /home/$USER (replacing $USER with your username obviously)
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| 18:57 | <julienfayad> if I try to run it as the fat client user (in terminal) I get a “Failed to create secure directory (/home/{username}/.config/pulse)
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| 18:58 | <julienfayad> well that’s the first thing I checked
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| 18:58 | and the user is the owner of both the home/{username} and home/{username}/.config folders
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| 18:58 | so couldn’t find anything wrong with the permissions there
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| 19:05 | <bennabiy> Can you verify that your user can write to those directories?
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| 19:08 | <julienfayad> well these are not empty
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| 19:08 | the .config directory contains many folder for apps
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| 19:08 | tand they are all owned by the user
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| 19:09 | for instance, one directory for chrome, one for pluma, one for slack etc...
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| 19:15 | * alkisg waves | |
| 19:17 | <julienfayad> hello alkisg!
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| 19:17 | bennabiy suggested that you might have an opinion about the issue I’m facing with sound ?
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| 19:18 | <alkisg> julienfayad: can you try with an ubuntu live cd and verify that it's not related to ltsp at all?
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| 19:18 | ...or an external usb disk
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| 19:19 | <bennabiy> alkisg: did you see my pastebin?
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| 19:19 | <bennabiy> alkisg: here is a diff of the working vs non working on thin client. https://pastebin.mozilla.org/?diff=8889192 this is with the same user, same client, just one is directx and the other ssh
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| 19:19 | <julienfayad> alkisg, I did better, one of the laptop have ubuntu installed on its Hard disk and when booting from the HD all works well
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| 19:19 | <alkisg> bennabiy: yup, only DISPLAY is different there, so there must be something wrong in the mate menu code, that breaks
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| 19:19 | julienfayad: is it the same ubuntu version?
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| 19:19 | and kernel and all?
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| 19:20 | <bennabiy> I pulled the code, so I am going to look through it
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| 19:20 | <julienfayad> same version 16.04 but not same distro though, the other is Ubuntu Desktop (the one you get here: ubuntu.com/download)
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| 19:21 | the ltsp runs on mate
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| 19:21 | <alkisg> julienfayad: ok, please try with the same distro and version and flavor and kernel
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| 19:21 | We're not doing anything wrt sound on fat clients
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| 19:21 | So it shouldn't be related to ltsp, but it can be related to flavor
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| 19:21 | <bennabiy> alkisg: there are also these entries which are on the direct X which are not on the SSH GIO_LAUNCHED_DESKTOP_FILE=/usr/share/applications/mate-tweak.desktop
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| 19:22 | A couple GIO entries
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| 19:22 | <alkisg> bennabiy: if the mate menu breaks because of them, then it's an issue with mate menu, not ltsp...
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| 19:22 | <bennabiy> alkisg: fair enough
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| 19:22 | <alkisg> I don't think it's related to the environment though, except of course for the remote display part
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| 19:23 | <bennabiy> Is there a way to test it outside of ltsp (say I have a different computer outside the network which could test remote X connection)
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| 19:24 | <alkisg> Sure, it's just networked xorg
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| 19:24 | There are many ways to set that up, from xauth to X -query
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| 19:24 | <julienfayad> well noted, yet I can’t manage to find a Live CD iso for ubuntu mate 16.04
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| 19:24 | <alkisg> julienfayad: how did you install ltsp-pnp with mate then?
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| 19:24 | <julienfayad> well regular iso to install the OS
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| 19:25 | but wasn’t a Live CD
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| 19:26 | <alkisg> Regular iso to install the OS is a live cd
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| 19:26 | It gives an option, "install ubuntu" or "try before installing"
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| 19:27 | <julienfayad> ohhh, never paid attention to that detail! I’ll try this out, thanks!
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