/srv/irclogs.ubuntu.com/2015/04/20/#lubuntu.txt

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Christopher-WereHi, I've recently updated Lubuntu 14.10 inside of a virtual machine and now when I boot up I get a kernal panic17:02
holsteinkernel?17:02
holsteinyou get a message? or, you have something that is making you think you have a kernel panic?17:02
Christopher-WereI'll pull up a screen shot 1 sec17:03
holsteinyou updated lubuntu 14.04? with something like "sudo apt-get update && sudo apt-get dist-upgrade"? can you locate an older kernel and try booting it, please..17:03
holsteinif youcan get in with the older kernel, run the command i gave, and share errors..17:03
Christopher-Werethere's no older kernal on the grub menu17:04
holsteinyou only have one kernel? in the list? you have no "older entries"?17:04
Christopher-Werenope17:04
holsteinyou should have a recovery mode for the one kernel you have.. can you get into it?17:05
Christopher-Wereat the moment it's not booting into anything. It's just a blank blck screen before it even gets to the grub menu17:06
Christopher-Wereokay I'm at the grub menu and it only lists 3.18 and no other kernal17:07
holsteinsure, so, where i suggest to boot the recovery kernel mode, for that kernel, try that17:08
Christopher-Wereit gives me options of systemd, upstream and recovery mode, but all of those cause the same kernal panic17:08
holsteinyou should see "older kernels"..17:08
holsteinwhy are you saying "kernel panic"? does something say that?17:08
Christopher-Wereyes it says kernal panic17:08
Christopher-WereI'll send over  a screenshot of the error17:09
holsteinChristopher-Were: can you get into the recovery mode? yes or no?17:09
Christopher-Wereno17:09
holsteini think you are in the chroot in and fix something state..17:10
holsteini would start with a live iso, and see if the file system can be repaired17:10
Christopher-WereIs upgrading in ubuntu even stable? this isn't the first like upgrading has caused me problems17:12
holsteinChristopher-Were: i dont know what you are referencing, friend17:12
holsteinif you mean, upgrading the version from 14.04 to 14.10, sure, that *can* be stable17:13
holsteinbut, there can also be issues..17:13
holsteinis that what you did? or did you just do a system update?17:13
Christopher-WereI mean just upgrading within the same release, which is what seems to have caused this problem17:13
holsteinChristopher-Were: i dont konw what you have upgraded, or how17:14
holsteinChristopher-Were: also, if you have 3rd party sources, or not..17:14
Christopher-Werei don't have any17:14
Christopher-Werethanks very much for your help, but i've got somewhere to be right now. Maybe Lubuntu isn't stable enough for y uses anyways. Thanks bye.17:14
holsteinone should always have backkups, regardless.. in virtulized os's, i'll take a snapshot17:14
rawheadHi all17:35
rawheadCould anyone help. I got Logitech usb mouse, MX500. It moves slow on lubuntu17:36
Christopher-WereHi, does anyone know where I can change my default sound device in Lubuntu 14.10?21:15
Christopher-Werehello?21:19
Christopher-WereHi, does anyone know where I can change my default sound device in Lubuntu 14.10?21:23
Unit193alsamixer and hit F6 to select sound device.21:24
Christopher-Werethat doesn't change my default sound device.21:25
Christopher-WereWhat I'm looking for is the ability for the taskbar slider to corrispond with by usb sound device21:25
Unit193Might be easier for you to use pulseaudio.21:26
Unit193!pulseaudio21:26
ubottuPulseAudio is a sound server intended as a drop-in replacement for !ESD - See https://wiki.ubuntu.com/PulseAudio for information and installation instructions21:26
Christopher-WereI've installed pulseaudio21:26
Christopher-Werebut I'm having a little difficulty in how to selected my default output device21:26
Christopher-WereThe issue is that I'd like the volume control on the taskbar to work with my usb card21:35
KamilionChristopher-Were: that's supposed to be what pulseaudio is for; finding ALSA based audio devices and managing them. In your case, it should be trying to select your USB device in preference to any onboard audio chips.21:35
Kamilionuhh, it's been a while, but I know there's a number of gui and cli tools for poking at pulseaudio's state.21:36
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Kamilionif I remember correctly, the package is pavucontrol to get the graphical pulseaudio tool21:37
Christopher-WereI've got pavucontrol up but it can change what the taskbar mixer corrisponds too21:37
Christopher-WereI've also got the xfce4-mixer but that's no help either21:37
Kamilionmost of those will be controlling alsa's mixer21:37
KamilionIIRC21:37
wxlChristopher-Were: alsamixer21:37
Unit193Kamilion: That it is, but I believe the lxpanel plugin works with alsa.21:37
Kamilionthat'll set the hardware volume controls, yes21:38
Kamilionbut it won't let him choose the output device, from memory.21:38
wxlsure it will21:38
Kamilionnormally pulse takes care of it automatically -- when I plug my plantronics headset in, it correctly moves the audio over to it without me doing anything.21:38
Christopher-Wereokay, because my usb headphones have a volume control on them which works with the volume slider in the taskbar, do I need to use a different applet?21:38
KamilionOh, wait... Uh, how much did you pay for that USB audio device?21:39
Christopher-Werewhy do u ask?21:39
* Kamilion has a little one here from china that says it's 7.1 channel cmedia chipset, but the volume control is either ALL THE WAY UP or whispers and nothing in between21:39
Kamilion/me has a little $4 one here from china that says it's 7.1 channel cmedia chipset, but the volume control is either ALL THE WAY UP or whispers and nothing in between21:39
Kamilioneven on windows.21:39
Christopher-WereOh my headset was about £30. The volume controls work fine in KDE21:40
KamilionI ended up using the volume dial on my speakers for that :/21:40
Kamilionokay, so the mixer does work.21:40
Kamilionso we've ruled out hardware fault if KDE demonstrates proper behavior21:40
Christopher-Werethe usb mixers works, the volume slider in the taskbar picks it up, but when I change the volume via the controls it changes the volume of the onboard soundcard which I don't want21:41
Kamilionohh.21:41
KamilionSo you're trying to get the tray control to target a different device21:41
Kamiliongotcha21:41
Christopher-Werepresumably because the tasbar slide changes the volume of the default sound device21:41
Christopher-Wereexactly Kamilion21:41
Kamilionhttp://puu.sh/hl2HH/b4e0c59d13.png  <--- you can see mine here, on this system.21:41
Kamilionbut that's being fed to the VMs through vmware workstation21:42
Christopher-Werei see21:42
Kamiliongimme a couple minutes to poke vmware and set the device up for USB passthrough to a VM21:42
Kamilionand I'll see if I can replicate your issue.21:43
Christopher-Weremaybe there's another taskbar volume applet I can use? if the lxde one only uses alsa21:43
KamilionI think there's a couple others21:43
Christopher-WereI know KMix works, but obviously that would be kinda clunky with LXDE21:43
Kamilioncheck the software store for 'mixer' or search through the package lists with synaptic21:43
Kamilionoh, don't worry about that21:43
KamilionI have kvirc installed on my lubuntu box21:43
Kamilionit brought in half of KDE, but I don't care21:44
ianorlindepends how much resources you have though21:44
Kamilioni just want my pretty, themed IRC client.21:44
Kamilionyeah. The libs on disk are pretty small, only a few hundred megs...21:44
Christopher-WereI have 16gigs of ram so resources aren't an issue, but I'd like it to be as snappy as possibly21:44
Kamilionas long as you're running lubuntu, there ain't much else running in the background to slow things down.21:45
Kamilion:D21:45
KamilionThe only bone I can throw you is, try some other mixers from the repository and see what works21:45
Kamiliona good trick for that is grabbing a livecd, stuffing it on a USB stick21:45
Christopher-Werethe xfce4 one seems like it might do the job21:46
Kamilionand installing packages on that to find one that works best before committing to installing it on your main disk21:46
Christopher-Wereim sorry, what do you mean by that?21:47
Kamilionwhoops, sorry.21:51
Kamilionhadda step away from the KB for a moment, guess it was a moment too long.21:51
Christopher-Werehmm no success as of yet22:00
Christopher-WereOkay, I'm not finding any suitable ways to deal with this.22:09
Christopher-WereI don't understand why this is so difficult on Lubuntu or why other people for some reason haven't had to deal with this22:11
Christopher-WereIs there a way I can have an icon in the taskbar open pauvcontrol? Since it doesn't appear the LXDE's menus there doesn't seem to be an option to add it to the taskbar as an application launcher22:13
Christopher-WereIs anyone still here?22:15
ianorlinyes with volume prefrences on the applet22:17
ianorlinor volume control settings once pavucontrol is installed22:17
Christopher-Werei think i need to explain the problem again, you're not the person who was just helping me22:18
ianorlinI was reading the scrollback22:19
Christopher-WereI have a usb interface which is not my on-board soundcard. I'd like the volume mixer in the taskbar to corrispond with my usb device not the onboard card. Now apparently this is impossible because LXDE works with alsa not pulse audio, which means I need a new audio mixer. I've tried the xfce4 one but it doesn't seem to want to work.22:20
Christopher-WereIs there a simple audio mixer which fits into the system tray where I can select my device. Or can I just click a launcher to launch pavucontrol since I know that works. It's a clunky solution, but at this point I'll take it.22:21
Christopher-Werebasically a gtk version of kmix22:22
Christopher-WereDang it, now I've lost all sound22:27
Christopher-WereI dn't understand why this is so difficult22:27
Christopher-WereSo if I wanted to launch pavucontrol from the taskbar. How would I go about it?22:30
ianorlinright click on the quick launch area and click application launch bar settings22:31
Christopher-Wereokay, I'm there now22:32
Christopher-WereIt seems to be allowing me to add menu items, not custom commands22:32
ianorlinah you would need a to create a .desktop file for that22:33
Christopher-Wereseriously?22:33
Christopher-WereI think my PC setup might be a bit too much for Lubuntu. Do you know if it's possible to do a "sudo apt-get install ubuntu-mate-desktop" and remove lubuntu by "sudo apt-get purge lubuntu-desktop"?22:37
Christopher-Wereor am I just playing with fire with that?22:37
ianorlinlubuntu-desktop is just a metapacakge22:37
ianorlinChristopher-Were: I don't actually have a usb audio device though22:37
Christopher-Wereyes but apt-get autoremove should work everything else out right?22:37

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