5
votes
0answers
2k views

When watching videos in VLC on Ubuntu 14.10, it flickers

I have Ubuntu 14.10. When watching videos full screen with VLC the video flickers. Only on full screen. And it's not happening on other players (the default player and smplayer). How to fix this? I ...
5
votes
0answers
556 views

16 cores are not being utilized out of 80 cores

Recently I discovered that our server does not utilize all 80 threads anymore in the system. It looks like if 16 cores are always idle, despite the high system load. Its a Dell powerEdge R900 server, ...
5
votes
0answers
1k views

Why won't .pdf files containing transparent elements print correctly?

I have recently encountered a problem printing .pdf files containing transparent elements. I first noticed it when printing a document created with LaTeX that included embedded .png images with alpha ...
5
votes
0answers
920 views

How to use a computer as a bluetooth headset?

I have very little bluetooth expertize. All I want to do is to occasionally be able to use my computer's speakers and microphone for phone conversations. I don't want to use a bluetooth headset. All ...
5
votes
0answers
231 views

Prevent light-locker from setting volume to 100%

I'm on 14.04 with XFCE. When I lock the screen it appears to mute the system volume (or perhaps just mute anything from the locked session?). When I log back in the volume is reset to 100%. This ...
5
votes
0answers
426 views

(32) Ad-Hoc mode is not supported by this device. - 13.10 on i5 NUC

Not sure if this is an Ubuntu issue or intel issue. Any insights will be appreciated. I have an intel NUC (D54250WYK) w/ intel 7260 wireless adapter and Ubuntu 13.10. I can connect to my local wi-...
5
votes
0answers
345 views

How do I change the icon size in the KDE status bar?

On my 13 inch screen with 3200x1800px I adapted all fonts to 230dpi which is ok in most cases. Also in Settings, I could change Icons of the KDE Theme to 64px. Only the Icons in the statusbar at the ...
5
votes
0answers
573 views

Virtualenv permission denied

After a lot of struggle with virtualenv/virtualenvwrapper I decided to remove all virtualenvs and re-install the packages. root> su myuser myuser> sudo pip install virtualenv myuser> sudo ...
5
votes
0answers
3k 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 start/...
5
votes
0answers
2k views

External display suddenly not detected

I have a Lenovo IdeaPad U410 running Ubuntu Desktop 13.04. I have an external monitor that I connect to via HDMI, and it's worked flawlessly for six months. I plug in my laptop, it detects the ...
5
votes
0answers
770 views

Fujitsu S1300i advances document but doesn't scan

I'm using a Fujitsu ScanSnap S1300i. Using sudo as a temporary workaround to minimise any permissions problems: $ sudo sane-find-scanner found USB scanner (vendor=0x04c5 [FUJITSU], product=0x128d [...
5
votes
0answers
2k views

How do I fix “chdir(): No such file or directory [uwsgi.c line 1723]” on in wsgi on nginx?

I have treeio project in my home directory, now I want to run that treeio in nginx server. Already treeio can independently run on Django comes with the source. I don't want to run that in Django ...
5
votes
0answers
235 views

How to map a character sequence to a key in xkb?

I am making a keyboard layout in xkb for Punjabi language. The default ones are outdated. In windows I could assign a keyboard key to a sequence of Unicode characters. But in xkb I think I cannot. But ...
5
votes
0answers
312 views

Configure ibus to generate “à” using Compose + a + `

I would like to have ibus work like to corresponding system in OS X. In order to get an "à" in a text field I want to make these steps: I press the Compose key I press the a key (an "a" appear in ...
5
votes
0answers
387 views

Is there a proper way to set up a copy-on-write based build env that use your live / as base files?

I'm trying to set up a build environment using chroot, but instead of downloading ubuntu base files, I want to use my live / as base files for the chroot and use c-o-w to redirect any changes made in ...
5
votes
0answers
1k views

Intel display controller unclaimed

I have just reinstalled Ubuntu 12.10 on my Optimus laptop with Intel Ivy Bridge and Nvidia 650M graphics cards. I have set up Bumblebee following this guide: http://www.webupd8.org/2012/12/use-nvidia-...
5
votes
0answers
1k views

How can I get NetworkManager to autoconnect to a Openconnect VPN via nmcli without prompting for a user and password

I am trying to set up a script driven VPN connection with nmcli on Lubuntu 12.10 using Openconnect and NetworkManager and I cannot seem to get it to connect either with the saved credentials or via ...
5
votes
0answers
928 views

How to control of battery charging/discharging limits?

I'm running HP 530 laptop and Ubuntu 10.04. My old battery is died some times ago, so I have got the new one. I'd like to get possibility to change the limits when the charger starts to charge ...
5
votes
0answers
646 views

Sony Bravia Unsupported Signal After Turning Off Display

Installed 12.04 over a previous hackintosh build a couple days ago and trying to iron out all the kinks. The most frustrating right now is my HDTV output through HDMI to a Sony Bravia KDL-40BX421. ...
5
votes
0answers
1k views

Is there a guide for using GRSecurity and Precisew/ PAX?

I'd like to know if there is a guide of some kind for (successfully) configuring, compiling and installing GRSecurity w/PAX etc. in Precise? I basically am trying to build my own custom release ...
5
votes
0answers
3k views

How to change GVFS mount point?

There is a way to change the GVFS mount point which by default is "~/.gvfs/" ? And by the way how to change the name of mounted folders which by default is "my folder on myserver.tld" ?
4
votes
0answers
29 views

Does Ubuntu Touch support display port?

The superbook is a laptop shell fit Android phones that uses DisplayLink over the phone's USB port. The owners say that the DL video also works with Windows Phones because they support DL. Does ...
4
votes
0answers
25 views

Where to install additional LaTeX packages?

I have texlive-full installed on my system. For a particular article I would like to use the Backus-Naur Form (BNF) package, which is not available in any of the LaTeX packages for Ubuntu. Where ...
4
votes
0answers
44 views

Can I have a window showing small live preview of another workspace?

Is it possible to mirror a live section of one workspace so that it is visible in the current workspace as a window that can be moved around? The other day I had a Windows 10 VM running on my Ubuntu ...
4
votes
0answers
100 views

Internet speed decreases suddenly on Ubuntu 16.04

I am using Tata Photon Max Wifi to connect to internet. Since morning download speed is decreasing to 10-15 kbps. Normal speed I receive is usually more than 200 kbps. I have not changed any settings ...
4
votes
0answers
91 views

Wireless disconnect issues Ubuntu 16.04 with RTL8821ae

I've been having trouble with my Wifi ever since I installed Ubuntu 16.04 two months ago. There are several posts similar to this one on the forums, however I've not found any that work for me. Here ...
4
votes
0answers
53 views

How to catch the command failure events in ubuntu?

I am trying to execute the script whenever the command fails. We all know that if the command is failed $? value will not be equal to 0.It gives the value 127 if command fails. The script is ...
4
votes
0answers
44 views

Chinese characters rendered as squares in snap

I am trying to build a snap but Chinese characters are rendered as squares. Does anyone know how to solve this? Here is my snapcraft.yaml: name: cloudmusic version: 1.4.3+snap2 summary: Cloud ...
4
votes
0answers
89 views

Can't see or connect to TP Link AC1750 Wireless Router

I am running Ubuntu 14.04 on a 2015 Macbook Pro. I am able to see and connect to other wifi networks via the network manager. I have set up a 5GHz network with security disabled on the AC1750 router. ...
4
votes
0answers
38 views

How to reset default window positions and sizes?

Short Version How do you reset the default window positioning and sizing rules? As in, when an application starts, it remembers its last position and size. I want it to not do that, and start in ...
4
votes
0answers
97 views

USB 3.0 port not working properly

I am having some problems with a USB flash drive when my computer resumes from suspend. I am running Ubuntu 16.04 on a Dell XPS L521X. This laptop has three USB ports, 2 times USB 2.0 and 1 time USB ...
4
votes
0answers
26 views

Signature-based rootkit scanner?

Currently the only rootkit scanners I know of have to be installed on the machine before the rootkit so that they can compare file changes etc (e.g.: chkrootkit and rkhunter), but what I really need ...
4
votes
0answers
1k views

Fresh Ubuntu 16.04 install with Nvidia GTX 1070 is crashing

I am one of the lucky people who received a MSI GTX 1070 Gaming X already, and so I decided to upgrade from 14.04 to 16.04 via a fresh install. The installation completed without any problems, and ...
4
votes
0answers
64 views

Repairing Flash Drive that wasn't ejected with I/O errors?

I was dumb and didn't eject my flash drive, now it won't show up in mount, can't be manually mounted, dd just hangs when trying to zero it out, and I get I/O errors when trying to format it. I know ...
4
votes
0answers
28 views

I hear clicks whenever the volume of some audio stream is adjusted

(Almost) whenever the volume of an audio stream is adjusted, I hear a clicking sound. As I am using an application that emits multiple streams and adjusts their volume frequently (and shall be able to ...
4
votes
0answers
36 views

How to get audible feedback (“Thunk” sound, no typewriter) when pressing a keyboard key?

When I type I watch the keyboard rather than the screen. I need the noise that lets me know if my keystroke has connected and produced a symbol. With the typewriter, I frequently lean/press on some ...
4
votes
0answers
56 views

indicator-power status change delay

I recently migrated to 64 Bit 16.04 LTS from 32 Bit 14.04 LTS on my Toshiba L645 laptop. I am facing an issue with power indicator on the unity panel. When I change the power source to battery from AC,...
4
votes
0answers
67 views

Installing vim latex-suite plugin?

I have installed vim-gtk and vim-addons-manager on my ubuntu 14.04, and also the latex-suite plugin. This I did with sudo apt-get install vim-latexsuite vim-addon-manager enable latex-suite which ...
4
votes
0answers
49 views

Dell Inspiron 15 3542 running Ubuntu 14.0.4 : Touchpad and wifi not woking

I bought a new laptop Dell Inspiron 15 3542, Ubuntu 14.04 is pre-installed in it but it seems that touch-pad and WiFi is not working. Please help
4
votes
0answers
107 views

Ubuntu 16.04 – theme does not load at boot up

I 'm having a problem with Ubuntu 16.04, on Asus UX303LA. I currently use the Arc theme but sometimes, when I boot up, the theme does not load properly and the environment looks like the Ambience ...
4
votes
0answers
114 views

How to install designate and trove on OpenStack Kilo (Ubuntu 14.04) deployed with Mirantis Fuel 7.0

We've set a basic environment using Mirantis Fuel with 3 controller/storage nodes and 3 computes. We've used Fuel to install the base system and then we added some extra components like FWaaS plugin ...
4
votes
0answers
49 views

“Move To” Command Deleted My Files?

Have a USB Flash Drive that has worked in the past every time I use it. Today, I tried to copy some files over to it, so I plugged it in, the computer recognized it. I opened it in on the desktop, ...
4
votes
0answers
37 views

My system loads before the themes

I'm using ubuntu with a SSD. The only problem so far is that my system boots so fast that the themes aren't loaded. I already tried the tip on the first answer of this topic (Desktop forgets theme?), ...
4
votes
0answers
272 views

How to solve laptop GPU overheating problem in Ubuntu16.04

Module Thinkpad W540. Spec: intel core i7 4800mq, Nvidia Quadra K2100M. Problem: I tried fresh installs of Ubuntu16.04, Kubuntu16.04, Ubuntu Gnome 16.04, and all of them suffer from the problem of ...
4
votes
0answers
245 views

Error creating terminal: Message recipient disconnected from message bus without replying

Why can't I open the gnome-terminal (version 3.18.3-1ubuntu1 on Ubuntu 16.04) any more? The error message is this: Error creating terminal: Message recipient disconnected from message bus without ...
4
votes
0answers
60 views

How to permanently show the full path of file opened on Gedit?

Sometimes I have files with same name in different folders and I get confused witch of them I'm using on Gedit, because I can't see its path. How to have the full path visible always when working on ...
4
votes
0answers
703 views

Ubuntu 16.04 - system boot waits saying “Raise network interfaces”

I have an Ubuntu 16.04 system with two interfaces - eth0 configured with DHCP and eth1 configured with static ip addresses. The /etc/network/interfaces file has the following config # The loopback ...
4
votes
0answers
80 views

Ubuntu 16.04 sometimes does not apply theme at startup

I have the arc theme installed and the numix circle icon pack. Sometimes, when i boot up the system, the desktop looks like this (note also how bad the text looks): desktop at startup However, if i ...
4
votes
0answers
65 views

How does wine actually work?

It is clear that the environment required for running a Windows application and an Ubuntu application are completely different. But a small package (of approx. around 650 MB) is able to run Windows ...
4
votes
0answers
849 views

Ubuntu 16.04 updating Google Chrome gets weak digest and hash sum mismatch messages

So for a while now whenever I run sudo apt-get update I have been getting some output regarding google-chrome similar to: W: http://dl.google.com/linux/chrome/deb/dists/stable/Release.gpg: Signature ...

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