61
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 ...
19
votes
0answers
461 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
90 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 ...
8
votes
0answers
170 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 ...
8
votes
0answers
527 views

What is causing Ubuntu on MacBook Pro to have high CPU usage?

I installed Ubuntu 13.10 on a MacBook Pro 10,1. However, after installing, the kworker process consumes over 90% of CPU usage. I tried the following: (Suggested in this answer) Execute grep . -r ...
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
592 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
97 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 ...
6
votes
0answers
2k views

Ubuntu 14.10 server startup

I install just the OpenSSH server on hardware that was running 14.04 Server. Besides the pages of checks the startup goes through, I believe it should recognize scroll lock from an usb keyboard, but ...
6
votes
0answers
308 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 ...
6
votes
0answers
397 views

Confusing about building OpenStack Packages?

I found OpenStack build task on Ubuntu QA site, but I am a little confusing about the build steps. Here's the link for build steps: ...
6
votes
0answers
410 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 ...
5
votes
0answers
240 views

Dropbox System Tray Icon Black Background

In the newest release of Dropbox, the background of the icon is black (in the system tray). So no matter which theme you use, unless it's a black theme, the icon looks awful. Does anyone know the ...
5
votes
0answers
237 views

Bios won't accept boot from usb

I have a x64 tablet running win 8.1. I am trying to install different Linux distro's. Unfortunately I am having trouble booting up from live usb. I got all set up in bios, turned off secure boot, ...
5
votes
0answers
116 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 ...
5
votes
0answers
126 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 ...
5
votes
0answers
472 views

Parallels: Scale title bars and menu not working

I've installed Ubuntu 14.04.1 LTS on my Macbook Pro 15" with Retina Display with Parallels 10. Unfortunately the whole GUI is very small so it isn't very comfortable to work with. A fix for this ...
5
votes
0answers
514 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 ...
5
votes
0answers
3k views

Google Chrome error

I have installed Google Chrome by .deb file from google.com/chrome/ Installation was ok but when I opening through terminal it says the code below although it opens it self. And it's unopenable ...
5
votes
0answers
161 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 ...
5
votes
0answers
3k 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
167 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
523 views

Cannot find Orca GUI based settings manager on Ubuntu 13.04

I use Ubuntu 13.04. I found Orca could initialized in Universal Access, but I cannot find its GUI based settings manager. I can't even start its settings manager via the command orca --setup or with ...
4
votes
0answers
20 views

radio telescope programs

I could not find one dealing with this. I was wondering if there is any radio telescope programs available for the Ubuntu 14.04, and if not how would I go about writing one? I am using a D.N. dish ...
4
votes
0answers
181 views

VMWare Workstation 6.5.5 on Ubuntu 14.04: Kernel Headers not found

Installation by running sudo ./VMware-Workstation-6.5.5-328052.x86_64.bundle completes successfully. However, upon attempting to run vmware, the following error message box is displayed: Clicking ...
4
votes
0answers
69 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
126 views

Ubuntu: Icon sticks to cursor

My cursor ends up dragging an icon around the screen, after some time of use. I'm running Ubuntu Gnome, and I'm suggesting that it has something to do with Docky, since the icons are coming from ...
4
votes
0answers
421 views

Android Studio doesn't render Ubuntu Mono Font well

It doesn't even recognise it as a Monospaced font. Then it only shows anti-aliasing when the font size is set to 20 or over. But for other fonts it does it at 16. The result is ugly looking fonts and ...
4
votes
0answers
73 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
196 views

“Nautilus restart required” by Dropbox

I've just installed on my new pc Ubuntu 14.04, and one of the first programs I installed is Dropbox. But everytime I turn on my pc, it ask me to restart Nautilus because of Dropbox. If I restart ...
4
votes
0answers
378 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
281 views

Google Chrome touchscreen - right-click gets stuck

I'm having some problems with Google Chrome and my touchscreen in Ubuntu 14.04. Basic touchscreen usage works fine, but if I double-tap on the touchscreen (the gesture for a right-click, as far as I ...
4
votes
0answers
748 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
119 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
256 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
298 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
524 views

Ubuntu and Qt creator keyboard layout change problem

When I run Qt Creator on my Ubuntu 14.04 with English layout, it always types in English and it won't change if I change my layout to other language. In front, when I run Qt Creator with Persian ...
4
votes
0answers
73 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
152 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
325 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
456 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
208 views

Cannot find classmap.h

When i execute: make modules i get the error: make[1]: Nothing to be done for `all'. make[1]: Nothing to be done for `relocs'. CHK include/generated/uapi/linux/version.h CHK ...
4
votes
0answers
4k views

device-mapper: remove ioctl on luks-xxxx failed: Device or resource busy

While I was away from my computer, my encrypted USB drive got accidentally unmounted somehow (although it was still physically connected at the time). I haven't been able to recover (haven't tried a ...
4
votes
0answers
842 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
185 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
574 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
705 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
290 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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