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google-chrome-stable keeps asking if it should be set to default

Since the Ubuntu 15.10 upgrade, google-chrome-stable keeps asking if it should be set as default browser, even though it already is. I tried to reinstall it, but that didn't help. Any ideas?

PulseAudio can not load bluetooth module 15.10/16.04

EDIT: Works for 16:04 as well

I am having trouble connecting my bluetooth speakers with a fresh 15.10 install. The speakers are connected however they are not listed as available audio device.

I tried to load the bluetooth module using:

sudo pactl load-module module-bluetooth-discover
Failure: Module initialization failed

The same speakers have worked perfectly on 14.04. Any ideas how I could properly load the module so I can use my speakers?

"Boot Error" on live-usb flash drive with 15.10

I'm trying to install Ubuntu 15.10 32bits on a Samsung NP-N150-JP05FR, with a live usb created with usb-creator-gtk (from ubuntu 15.10, as superuser) on a FAT32 usb flash drive and get this error :

SYSLINUX 6.03 EDD 20150813 Copyright (C) 1994-2012 H. Peter Anvin et al
Boot Error

Any key pressed make that message repeat.

I often install ubuntu with live usb, using either usb-creator-gtk or UNetbootin. I actually already installed ubuntu (14.04) on that computer a few months ago. I can't figure out the issue.

Already tried :

• different USB flash drives
• checking .iso integrity
• renaming isolinux files to syslinux
• checking for USB Mass Storage Emulation type option in Bios (no such)
• UNetbootin instead of usb-creator-gtk
• removing "ui" from syslinux.cfg

Network interface name changes after update to 15.10 - udev changes

I updated a virtual machine running Ubuntu server 15.04 to the just released new stable 15.10.

There were no apparent problems, but after reboot the machine lost its network connection. lspci showed the correct card and lsmod proved that the driver had been loaded.

Hints about editing or removing /etc/udev/rules.d/70-persistent-net.rules did not succeed (still no network, no new file), the famous /lib/udev/write_net_rules did not even exist.

I don't have much clue regarding udev and systemd, so it took me some time to find in /sys/class/net that the network interface name changed. It became ens32, which was renamed from eth0. After I changed /etc/network/interfaces network communication was enabled again.

But - why does this happen at all? And if it happens, shouldn't the interfaces file be updated automatically?

Now that I deleted the virtual network card and created another one, eth0 becomes eno16777728, which is not so, uhm, nice.

Should this behaviour (at least that of the upgrade procedure) be reported as a bug?

Furthermore, is /etc/udev/rules.d/70-persistent-net.rules obsolete now? And (although only partly related) what about /etc/udev/rules.d/70-persistent-cd.rules?)

Edit - additional question (after accepted answer) The dependency of /etc/network/interfaces from the actual interface name bothered me. I tried a new installation of *ubuntu in another virtual machine. To my surprise, /etc/network/interfaces contained a reference to the loopback device only. However, with my original VM this change prevented the network to come up. So what else do I need to change?

Edit Well, from another test I found that a new Ubuntu Server has the network interface card in /etc/network/interfaces, while XUbuntu has not. Maybe it is using network-manager or something else.

How can the login greeter drums be turned off in Ubuntu 15.10?

I want to disable the startup sound effects that play when the login greeter appears after booting Ubuntu 15.10. How can this be done?

VMware won't work after Ubuntu Upgrade

I upgraded to Ubuntu 15.10 and now if I want to open VMware Player it doesn't do anything. I also uninstalled and installed it again, still nothing.

What can I do?

Disable all visual effects in Ubuntu 15.10

How do I disable all effects in Ubuntu 15.10?

I already called this on the console:

gsettings set org.gnome.desktop.interface enable-animations false

But it doesn't seem to have a great effect, When I open the Ubuntu dash, it still gently fades in.

How can I disable all effects, so I minimize the usage for my graphic card?

I know, there are more lightweight solutions like Lubuntu or Xubuntu, but I would like to stay on plain Ubuntu.

Unsupported Ubuntus - is it safe to continue with them?

I'll try to be as clear as I can about this, hoping to get clear answers.

I have Ubuntu Studio 15.10, which is not an LTS version, and will only be supported till July 2016.

• Does that mean there will be no updates whatsoever available, by the end of the support period?
• Or does it just mean that Canonical will not update the 15.10, but updates will be available from some backports, or other repositories?
• Is it recommended to update to the 16.04 LTS version, when support (official at least) for 15.10 will cease?
• Will a clean install be required, in the case of upgrading from 15.10 to 16.04, or will there be a direct upgrade path?

Please note, that my questions (and thereby the answers) should not only be intended for Ubuntu Studio, but all the Ubuntu family, Ubuntu, Xubuntu, Lubuntu, Kubuntu, Edumuntu, Ubuntu GNOME, and others, if I have forgotten some.

Ubuntu kernel not updating with 15.10

I just upgraded from Ubuntu 15.04 64bit to Ubuntu 15.10 64bit. I read that 15.10 was using the 4.1 or 4.2 kernel, but I noticed that my kernel didn't upgrade.

When I type in the terminal uname -r, I get 3.19.0-18-generic

Same thing in Grub: the only kernel I can choose is the 3.19.0-18

Can someone explain me how to upgrade the kernel?

Why is my network interface named enp0s25 instead of eth0?

A lot of my scripts stopped working after installing Ubuntu 15.10 and I have trouble remembering this new name as I was used to ethx and wlanx for years. Is there a reason for this change? Do I have to get used to this or can I just rename it and go back to good old eth0?

$ ifconfig

enp0s25   Link encap:Ethernet  HWaddr 77:5a:5e:a6:86:d5  
      inet addr:192.168.31.239  Bcast:192.168.31.255  Mask:255.255.255.0
      inet6 addr: fe80::725a:b6ff:fea6:86d7/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:4833 errors:1332 dropped:0 overruns:0 frame:666
      TX packets:5589 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:3266446 (3.2 MB)  TX bytes:1046654 (1.0 MB)
      Interrupt:20 Memory:d3500000-d3520000

MongoDB 3.0.2 won't start after upgrading to Ubuntu 15.10

I recently upgraded to Ubuntu 15.10 after which MongoDB 3.0.2 is not starting.

$ sudo service mongod start

which would throw error:

Failed to start mongod.service: Unit mongod.service failed to load: No such file or directory.

upgrading from 15.10 to 16.04 apt not installed

on upgrading using the terminal, my upgrade stops. this the line showing in the terminal:

The required dependency 'apt(>=1.0.10.2 ubuntu2)' is not installed.

my problem is i don't know the command to install this dependency. using other commands, it says apt is up to date. solutions?

How to make "open in terminal" in the right click menu use terminator instead gnome terminal?

I have set the default terminal emulator to terminator using update-alternatives and I can open terminator now with ctrl-alt-t but when I use the right click menu on the desktop or in a folder it will open gnome-terminal. Is there another setting to change to fix this? I would also like to add I edited compiz to try the 3d cube affect and from then had to reset compiz to default settings to revert which reset my terminal default. to get ctrl-alt-t working after this i also had to do gsettings set org.gnome.desktop.default-applications.terminal exec 'terminator'. I found this suggestion in How can I set default terminal used in Unity? but this did not make it so the right click option opened terminator.

Also I am using ubuntu 15.10

Ubuntu 15.10 randomly crashing back to login screen

fresh install of Ubuntu 15.10 here. Everything works fine, but I'm getting random crashes back to the login screen.

I pasted my syslog here: http://paste.ubuntu.com/12989589/

Edit: Confirmed bug on intel video driver + compiz with windows animations enabled. Workaround:

• Edit or create: /etc/X11/xorg.conf.d/20-intel.conf

• Add the following:

  Section "Device"
   Identifier "Card0"
   Driver "Intel"
   Option "AccelMethod" "uxa"
  EndSection
  

This disables "sna" acceleration, and uses "uxa" instead (the old one)

https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1509846

How to hide unity launcher border line [duplicate]

I'm on 14.04. I have my launcher on full transparency and I've hidden the containing boxes, and to complete the picture and have the icons completely hovering, it'd be nice to hide the border line or change the colour. Is that possible?