53
votes
0answers
2k views

How do I enable Ubuntu (using full disk encryption) to call LUKSsupend before sleeping/suspending to RAM?

This question is related to another one by @Stefan, but it is not a duplicate of it. The questions are slightly different: the author simply wanted to know if this had been implemented, while I'm ...
18
votes
0answers
378 views

How to lock ubuntu device orientation in portrait or landscape from user input?

I am working on a reader app to be used on Ubuntu-Touch. When reading books from the app it would be a helpful feature to lock the orientation in either portrait or landscape. This would be useful ...
10
votes
0answers
142 views

How to stop reordering of the same kind multiple preview windows in task switching?

When using task switching in the default graphical mode of Ubuntu 12.04, if they are multiple windows of the same kind, eg. multiple Terminal windows, you can see them all together and select which ...
8
votes
0answers
2k views

problem Kernel panic - not syncing: fatal exception in interrupt drm_kms_helper:

I'm having a problem with my Dell Inspiron 1564, I am getting this error: problem Kernel panic - not syncing: fatal exception in interrupt drm_kms_helper:: panic occurred, switching back to text ...
7
votes
0answers
133 views

Backup LVM snapshots and Grub2 problem

Long story short, I'm using obnam to take backups of my system. This is what I do: take LVM snapshot of /, /usr, /boot, /var, /home mount the snapshots on /bck-snapshots, /bck-snapshots/usr, ...
7
votes
0answers
67 views

High-level library for Unity Dash?

I've wanted to write a GTK+ version of Unity Dash for some time. I think it could be useful for Xfce, Gnome Flashback, elementaryOS, etc. Before I start doing anything about it, I'd like to know if ...
7
votes
0answers
1k views

Ubuntu 12.04 Unity: Black screen with cursor only, when external display is connected before booting laptop

Whenever I connect an external display to the DSub port of my laptop before booting into Ubuntu, something goes wrong in Unity to cause the exact same problem as described here: After logging in, ...
7
votes
0answers
420 views

Empathy Chat: People Nearby text chat OK but file transfer fails. Why? How to troubleshoot?

Problem: Chat works (sending text and smileys) with the "People Nearby" feature but sending files silently fails. Going to Contact > Send File presents the sender with a file chooser and no error is ...
7
votes
0answers
2k views

Tata Docomo Photon 3g not working on 12.04 LTS

I recently upgraded from Tata Photon+ to Tata Docomo Photon 3G, however Ubuntu is not recognizing the device itself. I tried manually adding the device in Mobile Broadband section, using different ...
7
votes
0answers
559 views

Wacom Bamboo Pen & Touch CTH-470 3+ finger gestures

I love my CTH-470 and I'm glad it's without having to spend hours in the terminal to get it working since I believe 12.10 (which I'm running now). But in the manual it states that you can swipe with ...
6
votes
0answers
107 views

Launchpad: CLI “Copying packages”

I'm using Launchpad to upload a .dsc, a debian.tar.gz and a .orig.tar.xz. The orig archive contains both i386 and amd64 files, and I use debian/rules to build different architecture packages. But it ...
5
votes
0answers
91 views

How to change index in OptionSelector immediately (without animation)?

In my app, I use an OptionSelector to choose from a list of bike stations. I also have a map component with placemarkers for each station. When I tap a placemarker, it also changes the OptionSelector ...
5
votes
0answers
1k views

Ubuntu screen goes black after loading youtube

While loading YouTube videos on Ubuntu 14.4 my screen goes black and yet everything still works, lights on the keyboard and the video plays. No amount of pressing buttons (ctrl+alt+f1, power button, ...
5
votes
0answers
145 views

Can't change brightness after disconnecting second monitor

When I boot up with 2 monitors, or when I connect the second monitor to my laptop, I can change brightness of the laptop screen in the usual sense. After disconnecting the second monitor, when I ...
5
votes
0answers
2k views

Ubuntu 14.04 system hangs after installing pam module for ldap client with intel_rapl: no valid rapl domains found in package 0

I am running VMWare Workstation 10.0.2 on a Windows 8.1 host. I installed Ubuntu Server 14.04 as a virtual machine. Everything works fine. All updates, upgrades and dist-upgrades are installed. After ...
5
votes
0answers
5k views

Xlib: extension “GLX” missing on display “:0”. and OpenGL GLX extension not supported by display ':0'

I am trying to use OpenGL on my Ubuntu 12.04 LTS. I installed OpenGL with the following commands: sudo apt-get install g++ cmake sudo apt-get install freeglut3 freeglut3-dev sudo apt-get install ...
5
votes
0answers
160 views

xsetwacom can't map keys correctly

I recently bought a Wacom Intuos listed with xsetwacom as Wacom Intuos PT M. I figured out how to configure the buttons and actions, but when I try to set any button to some particular letters, they ...
5
votes
0answers
400 views

Sharing an encrypted home directory between Ubuntu installs

I am trying to "share" a home directory between two separate Ubuntu installations. On my HDD I have an Ubuntu 11.04 installation with a separate /home partition that uses encryption. My data currently ...
4
votes
0answers
27 views

How to re-organize my desktop environments?

I wanted to try out some different desktop environment other than Unity so I installed kubuntu-desktop using sudo apt-get install kubuntu-desktop then I didn't like it so much, so I removed it ...
4
votes
0answers
79 views

Fullscreen Chrome video causes Ubuntu to crash

Any time I try to watch a flash (or maybe HTML5) video in chrome, when I fullscreen it, Ubuntu freezes, goes black, and then my monitor says "no signal." This only happens on the second or third time ...
4
votes
0answers
377 views

CLOSED - OS X Yosemite - Live USB - Black screen when trying ubuntu 14.04

First of all, I have a Macbook Pro mid 2009 with Intel Core 2 duo running OS X Yosemite (8Gb of ram, 500Gb SSD), I downloaded ubuntu-14.04.1-desktop-amd64.iso and I use a 4Gb USB stick Here is what ...
4
votes
0answers
100 views

“monitor brightness down” key resets brightness before lowering it

My monitor brightness down key resets my brightness before lowering it, effectively leaving me at near max brightness. I do not experience any problems with the brightness up key. I'm using a Dell ...
4
votes
0answers
61 views

Change the opacity of a cut selection (nemo.css)

I am trying to find what I need to edit in a GTK theme (specifically Ambiance) to change the opacity of a cut file. A selected file is orange and when I cut it, it is a little opaque - I 'd like it to ...
4
votes
0answers
87 views

How to configure networking for KVM

Ok, my situation is as follows. I have: -host (Ubuntu server 14.04) on which I want to have multiple VMs (KVM). This host has 2 NICs (eth0, eth1) -home router (dhcp, network 192.168.1.0) -PC with ...
4
votes
0answers
95 views

What component is responsible for tray and how to manipulate it using C++?

My goal is to write a desktop gui application that will utilize these commands found in http://askubuntu.com/a/14083/18330 pacmd list-sinks to list name or index number of possible sinks pacmd ...
4
votes
0answers
62 views

Why opening apps in Ubuntu Touch takes so long?

Why in current ubuntu touch images, the apps take so long to open? When I click on some app, the phone show the icon of the app selected and the "icon of loading". This is a bug, or is this how it ...
4
votes
0answers
349 views

Why is SNMP broken?

Ubuntu Version: Ubuntu 14.04.1 LTS SNMP Version: 5.7.2 Short Issue: A lot of the entries in the "default" configuration file are broken. Which doesn't really matter because I can't even get SNMP ...
4
votes
0answers
342 views

Macbook pro volume keys not working

Macbook Pro 5,4 volume hot keys no longer change the volume. Numerous reboots, remapping of the keys in system settings, still not working. mute key works fine but volume up and down are not ...
4
votes
0answers
273 views

Juju deployment fails due to “container failed to start” error

I had tried to deploy mysql and i had this error: agent-state-info: container failed to start Outputs from log as following: Line 47: machine-0: 2014-08-14 02:02:30 INFO juju.state.api ...
4
votes
0answers
271 views

Fonts messed up after installing Kubuntu desktop on Ubuntu 14.04

I decided I wanted to try Kubuntu since I had some difficulties with the Unity desktop. I do not remember exactly the command(s) I run, but I think I used sudo apt-get install kubuntu-desktop. Now the ...
4
votes
0answers
711 views

Gave Up Waiting For Root Device - Fresh Install 14.04

I am getting the error: Gave up waiting for root device. Common problems: - Boot args (cat /proc/cmdline) - Check rootdelay= (did the system wait long enough?) - Check root= (did the system ...
4
votes
0answers
110 views

Can I make the Gnome 3 overlay show the current wallpaper rather than the wallpaper on login?

I'm using Gnome 3 (GNOME Shell 3.10.4) and I have a script that changes the wallpaper using gsettings set org.gnome.desktop.background picture-uri <file>. This works just fine with regards to ...
4
votes
0answers
138 views

How to remap keys on one keyboard only?

I know I can use xinput to remap mouse buttons only on one mouse but leave others unchanged. This is very useful - in my case, I use it two connect to mice to my desktop, one right-handed and the ...
4
votes
0answers
134 views

KVM guest performance impacted by very long virtblk disk wait times

I have several KVM guests running on Ubuntu 14.04 using libvirt. Their performance is very poor. The intermittent nature of the poor performance with an order of magnitude variability in simple ...
4
votes
0answers
660 views

Mini Display Port and Ubuntu 14.04

Did someone manage to use the mini display port instead of the hdmi port of a laptop (with ubuntu 14.04) ? I use bumblebee and my laptop has a nvidia card. I already posted a remark in this thread ...
4
votes
0answers
227 views

Why has nautilus' “Send to…” context menu replaced with “Email…”

I have been using Ubuntu for quite sometime and I've always seen the context menu "Send to..." where a dialog pops up showing all the places I could send my file to. But, after upgrading to 14.04, I ...
4
votes
0answers
407 views

Touchpad not detected

I am using Ubuntu 14.04 in the new Lenovo Z510 Ideapad laptop. To check if my Touchpad is detected I typed the command xinput list and this is my output: I tried everything mentioned in ...
4
votes
0answers
3k views

failed to update in ubuntu 14.04

I installed ubuntu 14.04 LTS and ran the command: sudo apt-get update it gives the following error: Err http://in.archive.ubuntu.com trusty InRelease Err http://in.archive.ubuntu.com ...
4
votes
0answers
244 views

Xubuntu Restarts Automatically after Shutdown

I recently installed Xubuntu 14.04 on a Dell Workstation. Whenever I shutdown, two things happen. Either it shuts down and automatically restarts, or it hangs at shutdown with a black screen. ...
4
votes
0answers
67 views

Multiline R commands disappear in command line

I generally use R from the command line. However, this problem has been annoying me. When I use the up arrow to get a previous command, if that command was multiple lines, then R only shows the last ...
4
votes
0answers
143 views

Manual UI scaling for non Unity environments

14.04 and Unity now offer UI Scaling. But what if I am not running Unity? In this case I am running Awesome Window Manager. How can I get my applications to scale the way they do when I am running ...
4
votes
0answers
289 views

Bumblebee and Lenovo IdeaPad Z580 with Nvidia GeForce GT 630M

Bumblebee doesn't recognizes my graphic card, $ lspci | grep -i vga 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible ...
4
votes
0answers
466 views

Dual screen problem with Optimus

I have a Lenovo T430 (with an Optimus graphical system), connected to a Dock Station with an output DVI (a 23" screen is on this output). I have Ubuntu 14.04 Beta 1. Optimus works great with the last ...
4
votes
0answers
442 views

Is Bluez (bluetoothd) not sending DBUS method_call SelectConfiguration upon Connection? If so, how do I catch it?

UPDATE : not solved yet, but part of a solution. See below. I am attempting to connect my iPod or other smart device to my laptop (Kubuntu 13.10) via bluetooth and stream a2dp-encoded music to a ...
4
votes
0answers
766 views

How to Enable Multi-Touch screen on Dell Vostro 5470?

I bought the new Dell Vostro 5470 with touch screen that supports multitouch (to 10 fingers). I installed Ubuntu 13.10 and it worked just touch the screen with one finger. Would enable multitouch but ...
4
votes
0answers
176 views

About the calendar on the top bar

So Ubuntu has this calendar on the top bar(Unity). Now whenever I open it and click on a day, it gets highlighted with bright orange color. If I close it now and open it again after like 1 or 2 days, ...
4
votes
0answers
2k views

Canon LBP3100B Printer => CAPT driver is installed => when I try to start ccpd, I get this: `Check the DevicePath of /etc/ccpd.conf`

OS: Ubuntu 13.10 64 bit Driver: CAPT v2.60 -> debian package 64 bit Printer: LBP3100B Regarding to this "Answer", I've installed the canon CAPT driver on my machin, but when I try to ...
4
votes
0answers
554 views

Sound Driver is messed up, and mic doesn't work correctly under ubuntu 12

Quick Ubuntu12 sound pops on boot and shutdown, and MIC picks up non-existant static. Edit: please note, Audio out is fine. Issue On shutdown and boot I often hear a loud blast from the speakers ...
4
votes
0answers
677 views

clang++ (version 3.3) lacks headers

This seems odd. Take a simple C++ program #include <cmath> #include <iostream> int main(void) { std::cout << "Square root of 9 is " << sqrt(9) << std::endl; } ...
4
votes
0answers
266 views

Ubuntu-touch reverse USB tethering

I'm trying to get internet from my Nexus 4 ubuntu-touch through the usb as described here: https://wiki.archlinux.org/index.php/Android_Tethering (this is for Android) What I cannot accomplish is to ...

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