Ubuntu 12.04 LTS ‘Precise Pangolin’ discussion thread

[arrow224]

Looking at re-purposing a spare computer here, currently running Windows XP but the hard drive has some dying sectors, so that will need some attention soon.

What I would like to do is have my primary computer (Windows 7 Home Premium) push music using the Play To feature. This needs to have a compatible DLNA client to push to, in particular supporting the DLNA profile digital media renderer.

Is there a way to make Ubuntu a DLNA client capable of accepting pushed audio?

For those who don't know Play To: http://windows.microsoft.com/en-CA/w...atures/play-to

[Blinky]

Originally Posted by arrow224

Is there a way to make Ubuntu a DLNA client capable of accepting pushed audio?

For those who don't know Play To: http://windows.microsoft.com/en-CA/w...atures/play-to

Trust Windows to find a way to do it backwards...
Normally you'd have the media on the server and stream from the server to the client. What's wrong with that method?

[arrow224]

Originally Posted by Blinky

Trust Windows to find a way to do it backwards...
Normally you'd have the media on the server and stream from the server to the client. What's wrong with that method?

Headless music system. Why have a screen when all I want to do is play music from the computer? If Microsoft can make it, surely there is an open source equivalent if not better solution.

[Grant]

Originally Posted by arrow224

Headless music system. Why have a screen when all I want to do is play music from the computer? If Microsoft can make it, surely there is an open source equivalent if not better solution.

If you weren't limited to DLNA, the easiest way would be to use mpd (music player daemon) on Linux, and a suitable frontend on the workstations.

But if I'm reading it right, Wikipedia says VLC will do it:
http://en.wikipedia.org/wiki/List_of..._clients#Linux

[Blinky]

Originally Posted by arrow224

Headless music system. Why have a screen when all I want to do is play music from the computer?

Can't you just use some remote speakers?
We use one of these to push music to speakers from different phones, tablets & computers. $50 delivered.
http://www.logitechshop.com.au/logit...o-devices.html

[IKT]

12.04.2 has been released and includes the 'hardware enablement stack'.

http://www.jorgecastro.org/2013/02/1...for-sysadmins/

How did I learn of this? I installed 12.04.2 and then steam and then my computer would boot past the ubuntu loading screen into a black screen and eventually the monitor would say no connection.

Turns out steam replaces the enablement stack and screws everything up.

Besides that it seems like a really good idea.

https://wiki.ubuntu.com/Kernel/LTSEnablementStack

In an effort to support a wider variety of hardware on an existing LTS release, the 12.04.2 and newer point releases will ship with an updated kernel and X stack by default. These newer hardware enablement stacks will be comprised of the newer kernel and X stacks from Quantal, Raring, and S (name TBD).

[Blinky]

Hi all, I'm doing a bit of cleaning out and have found some Official Ubuntu CDs. If this sort of thing gets you all hot and sweaty, or you're collecting them, send me a PM - they're free.

I have:
Kubuntu 9.04
Ubuntu Desktop 9.04
Ubuntu Server 9.04
Ubuntu Desktop LTS 10.04
Ubuntu Server LTS 10.04

[elvis]

Originally Posted by IKT

12.04.2 has been released and includes the 'hardware enablement stack'.

http://www.jorgecastro.org/2013/02/1...for-sysadmins/

How did I learn of this? I installed 12.04.2 and then steam and then my computer would boot past the ubuntu loading screen into a black screen and eventually the monitor would say no connection.

Turns out steam replaces the enablement stack and screws everything up.

Besides that it seems like a really good idea.

https://wiki.ubuntu.com/Kernel/LTSEnablementStack

I like the idea, but I don't like the execution.

They should investigate point in time packs that can be installed via meta packages so people can opt in. I'm sure that there are plenty of cases where people want the security updates presented in 12.04.2, but don't want sudden hardware breakages on next reboot.

With that said, the fleet of workstations and render nodes I manage hasn't had any problems with the 12.04.2 upgrade so far.

[stmok]

I've got this weird issue with Xubuntu 12.04 where:

=> a USB flash stick no longer shows up in Thunar.
=> Optical drive (DVD burner) no longer shows up in K3b.
=> the Xubuntu Log-out dialogue window doesn't appear! Only Xfce one appears. I have to enter a password to restart the system.
=> Software Updater doesn't even load up. I'm forced to update the system via command line.
=> if I try to run Users and Groups, I get an error message: The configuration couldn't be loaded. An unknown error occured.

When I reboot, everything behaves like normal. But then after a few hours or days, these symptoms re-appear again! (The duration between things being normal and going all weird varies depending on what I do!)

Its something to do with permissions, but I'm not sure exactly what's going on. Maybe something to do with policykit or dbus and Xfce?

Anyone else experience similar issues? How did you solve it?

[elvis]

Definitely sounds policykit related. Most of that GUI nonsense these days bypasses groups and/or sudoers all together for that new fangled policykit permissions management stuff.

And they wonder why I loathe that stuff so much.

I'd start by cranking the logging up as best you can and trying to see what gets spat out when it breaks. There's always the brute force approach too..

apt-get install --reinstall -y --force-yes  $(dpkg -l | grep -i policykit | awk '{print $2}' | tr '\n' ' ')

[IKT]

Originally Posted by elvis

With that said, the fleet of workstations and render nodes I manage hasn't had any problems with the 12.04.2 upgrade so far.

6. Anyone running with the original Precise stack will not be
automatically updated to the new Quantal enablement stack. Users
can electively choose to install the Quantal (or newer) enablement
stack meta package if they wish to do so.
7. Additionally, anyone upgrading to Precise will not be automatically
upgraded to the new Quantal enablement stack. Again, they can
electively choose to do so by manually installing the appropriate
meta package.

https://lists.ubuntu.com/archives/ub...st/035615.html

So shouldn't have any issues unless you specifically request to enable the HES.

[elvis]

Ah, well there you go.

Reading that, it seems the various stacks are only supported for the life of the release they match with (so 12.10 stack only gets supported for as long as 12.10 does). Fair enough, I guess.

Thus far I have no real need for it for the workstation and renderfarm users. Although one of my team is investigating OpenStack for the developers, and is talking about using 12.10. Perhaps 12.04LTS with a relevant enablement stack is a better option?

[edit] Hrm... it says if you install 12.04.2 you get it whether you ask for it or not. I wonder what that means for PXE boot users who install fresh off the tubes (like my whole fleet)?

[edit2] More notes about netboot images allowing specific versions. I need to look at this again when I've had some sleep...

[edit3] Sleep acquired. I rebuilt my own laptop two nights ago via PXE, and it put 12.04.2 fresh down on the disk with no quantal packages.

[Kosti]

Wondering if the U team can take a look here and see if they can assist

Warning i have no experience with this stuff, so need my hand held

MythTV thread as wasnt sure where to post it