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  • How to create a screencast?

    - by Riccardo Murri
    How can I create a screencast on Ubuntu? What applications are available? The app I'm looking for has ideally all of these features: Can record in a format that can be played back easily on any platform and/or accepted by youtube or another popular video site Can record just a window (instead of the whole screen), possibly selecting it with a mouse click Can start recording after a configurable delay (e.g., I launch the app and have time to do arrangements to my desktop/window before actual recording starts)

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  • How to schedule time-of-day upgrades

    - by Richard
    Hello, I'm responsible for about 30 Ubuntu computers at a private K-8 school. We have only a 3Mbps internet connection serving the entire campus, and I would like to ensure that updates are done in the middle of the night - so that daytime tasks are not slowed down. I'm using Ubuntu 10.04, and have set all computers to download and install security updates via the update manager. I have also installed cron-apt, and modified the config file to stagger the start times of the upgrades from about 10pm to 4am local time. HOWEVER - this morning I arrived at the school at 7:30am and all the computers were busy downloading a large security based update. Needless to say, all internet activity was slowed to a crawl (for the next 2 hours), and the computer users were very very upset. This was the event I'm trying so hard to prevent. It seems that my scheme to ensure middle of the night downloads failed, and I'm not sure why. I've also tried some schemes using unattended-upgrades & crontab, but there always seemed to be something scheduling upgrades to occur in addition to the ones I try to force at middle of the night. Is there a sure fire way to absolutely positively guarantee that updates will occur only at one specific time? It would be nice if the update manager just had a drop down menu to specify a designated time. Thanks in advance for any help you can give me.

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  • I can't capture the output screen of a game tutorial

    - by user12543
    Hello, I'm trying to do a screen capture with gtk-recordmydesktop and other capture tools but for some reason, it will not capture an output screen while its running. It captures one screen but doesn't show the rest. I can capture my screen running if I use my flip camcorder but recordmydesktop will not work. Is there a way to capture live video playing on the desktop without using an outside camera? Brian

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  • "Unable to install GRUB in /dev/sda" when installing GRUB

    - by vicban3d
    I recently bought a shiny new Lenovo Yoga 2 Pro and I want to dual boot it with Ubuntu for studying purposes. Its built-in OS is Windows 8.1 and it has a 256GB SSD. I've made a separate 90GB partition just for Ubuntu and a live USB to install it. The first time everything seemed to work great, I solved the wifi issued by blacklisting ideapad_laptop, the installation went flawlessly and Ubuntu worked fine. When I got up the next morning and turned on my laptop it booted into Windows right away without ever showing the GRUB menu. So I tried to reset, and checked my partitions with the Disk Manager and everything looked fine. Since I couldn't find a solution online I went ahead and formatted the partition to try and install again. This time and every time since, the installation was aborted and I got a fatal error saying: Unable to install GRUB in /dev/sda Executing `grub-install /dev/sda` failed. This is a fatal error. Can anyone please suggest a solution to this problem? If any further information is needed I would be happy to provide it. Thanks. When installing I get the following in details: ubuntu kernel: [ 1946.372741] FAT-fs (sda2): error, fat_get_cluster: invalid cluster chain (i_pos 0). ubuntu grub-installer: error: Running 'grub-install --force failed.

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  • Lenovo e530 no wireless Ubuntu 13.04

    - by Sam
    For some reason my wireless will not work on my Lenovo e530. I am dual booting ubuntu and windows 8 and my wireless works in windows. I saw online that I should run rfkill. I did that but only bluetooth shows up. There is no difference when I press the wireless fn key either, but it does block bluetooth (as it should). I'm really wanting to get into Ubuntu but this is holding me back. To clarify the wireless device does not show at all after running rfkill.

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  • Problem with Ubuntu and UEFI (Problem with any linux OS)

    - by K.T.Sumant
    I have purchased a new Sony Vaio laptop and it is said that the Windows in the recent laptops is installed in the UEFI mode. But all the Linux OS are installed in default in Legacy mode. When I reboot my laptop, Ubuntu is not being detected on boot. Only Windows is detected. To access Ubuntu, whenever I boot the system, I need to: (1) enter the boot menu, (2) change the mode to legacy, and (3) type a bit of scary commands in grub then Ubuntu successfully opens. This is a bit of problem for me. So I wanted to know the solution for this problem. So please kindly look over my problem as soon as possible.

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  • Every function key on laptop works except for brightness

    - by Dave M G
    I have an Asus UX21A, and I'm pleased to discover that almost all the hardware functions and features work perfectly with Ubuntu 12.10. The only thing that is not working straight "out of the box" are the brightness keys. In theory, the screen brightness can be adjusted downward by pressing fn+f5, and adjusted upward by pressing fn+f6. Is there a way I can connect the monitor brightness settings to these function keys?

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  • run .profile function as cron job

    - by Don
    In the .profile file of the root user I have defined a function, e.g. function printDate() { date } I want to run this function every minute and append the output to cron.log. I tried adding the following crontab entry: * * * * * printDate > $HOME/cron.log 2>&1 But it doesn't work. The cron.log file gets created, but it's empty. I guess this is because the .profile isn't read by cron, so any functions/aliases defined therein are unavailable to it. So I tried changing the crontab entry to: * * * * * source $HOME/.profile;printDate >> $HOME/cron.log 2>&1 But this doesn't work either. It seems cron still doesn't have access to the printDate function because I see the following in cron.log /bin/sh: printDate: not found

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  • Ubuntu Stuck at boot after update

    - by raphie
    I'm doing this question because I can't edit other questions and I'm trying to set up my computer with Ubuntu but I'm a total idiot about this. I want to give Ubuntu a try, I build up a system specially for Ubuntu but when everything seems to be OK I made a suggested update and now when I restart my computer Ubuntu is stuck in the purple screen. I read other questions about this but, as I said, I'm a total idiot with this and I don't understand a bit what you guys are talking about when saying reboot with Grub, press Ctrl-F4 or whatever. My keyboard shutdown when this happens and only accepts Alt-Ctrl-Del to reboot again. Ctrl-F4 is not working for me. Pleas Help Me, cure my MS insanity Pleaseee! :) Any help I will appreciate it!

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  • Very frequent system problems since 12.10 upgrade

    - by Jazz
    Since I recently upgrade my 12.04 install to 12.10, there is loads more instability generally. I have captured just the latest example - often occurring just after startup and login. Other random times, similar things happen - not always the same executable is reported - might be many different problems. Is everyone finding 12.10 a bit unstable (in which case I can hope for fixes to filter through over the coming months)?

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  • Clear Linux file system after shutdown / start

    - by user35443
    I have very specific task. I need to clear the desktop, downloads, documents and so on after every shutdown or finish. For example, if anyone downloads something using Google Chrome, he will work with it and then he'll shutdown the computer for next use. And when second user sits for working on the computer, he'll find a clear file system without the data downloaded by the first user. On Windows, I used to work with Returnil Virtual System, but it doesn't have support for Linux. Can anybody tell me if is it possible and, if so, how? I was also thinking of using Wine for this program, but don't think it will be the best idea.

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  • Wubi on Windows 8 without secure boot?

    - by emersonhsieh
    I have a MacBook Pro. I've heard rumours that if Windows 8 is going to have this thing called "Secure boot", Wubi cannot work. At first I plan to install Ubuntu on my mac via Wubi(and windows via bootcamp), but since I can't find my Windows 7 Installation CD, I installed Windows 8 on my Mac and installed Ubuntu on a VM. Then suddenly Windows 8 Release Preview was released today so I decided to install over my existing copy of Windows 8 Consumer Preview. When I went to the Windows 8 Upgrade assistant, it said that the firmware on my Mac doesn't support Secure booting. I don't even know what it means, but since the Upgrade assistant said that the Mac cannot support secure booting, can I install Wubi successfully? And what is secure booting anyways? Any help will be appreciated.

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  • What packages do I install for ffmpeg and libmp3lame?

    - by matt wilkie
    On my desktop Ubuntu 10.4 I use ffmpeg to convert videos to a format my dvd-player understands. On my laptop running 10.10 I can't get the same command to work, what package(s) are missing? ffmpeg -i infile.flv \ -threads 2 -vcodec mpeg4 -vtag divx -acodec libmp3lame -sameq \ outfile.avi #...snip Unknown encoder 'libmp3lame' Using apt-cache search libmp3lame I'm told there exist libmp3lame0 and libmp3lame-dev, both of which I've installed. Using acodec libmp3lame0 doesn't work either.

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  • Apache / MySql is not running. What is wrong?

    - by Valeriu
    I installed lampp / xampp on my Ubuntu 12.04. After installing, Apache and MySQL were running properly. Now, they're not. Here's what I get when I try to run apache: Command: /etc/init.d/apache2 start Result: * Starting web server apache2 /usr/sbin/apache2ctl: 87: ulimit: error setting limit (Operation not permitted) (13)Permission denied: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down Unable to open logs Action 'start' failed. The Apache error log may have more information.

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  • Configuring Dropbox on Ubuntu server

    - by Daniel
    I've got a Ubuntu server running on an old laptop. The OS is on a 4GB USB drive and I use a SATA drive attached for storage. Now I wanted to set up Dropbox on this machine. I've got it running using this guide: http://www.byteindia.com/internet/install-dropbox-on-linux/482/. But I haven't synched yet because there won't be enough room in my home dir. My /home is on my 4GB USB since I never use it and all my data is on the 2TB drive mounted in /media/. What is the best way to set this up? Dropbox doesn't support moving the folder in Linux yet. I found a script to move the folder but it seems outdated. Perhaps I can use symlinks in some clever way? Or maybe move my /home folder to my SATA drive? Thanks in advance

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  • Failure to boot after suspending

    - by kosmonavt
    I have two issues with Ubuntu 12.04 (upgraded from 11.04, 11.10) on my ASUS K52De laptop. First issue: Booting fails, if it follows a suspension, then a wake-up and finally a shut down. If I realize this sequence, then, during the boot I see the Asus logo and after that I see only a blinking cursor instead of grub2. Then I have to recover grub2. Second issue: Sometimes, my laptop doesn't shut down. It freezes on the Ubuntu logo and I must turn it down with power buttom. Thank you.

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  • On-the-fly file search in gnome 3?

    - by jan groth
    I recently switched to Gnome 3 (on Onereic 11.10). I was a big fan of gnome-do (on Gnome 2), where I heavily used the "files and folders"-plugin. This allows to configure a list of files and folder to be searched on-the-fly while typing. E.g. starting to type "timesheet" opens "timesheet_2011.ods" from my dropbox account... I can't find anything like this in Gnome 3. I know that there is a list of "recent items", and also the name of bookmarked folders in nautilus is searched, but that's not (exactly) what I'm looking for... So, what I want is this: tell Gnome 3 where my files are (certainly not only in my home folder) have them searched on the fly while I'm typing I think Unity offers something like this - but hey, I'm using Gnome 3 ;-) Anything I missed?

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  • How to change icons in the side pane of the Nautilus file browser?

    - by oli
    Right-click in the main panel allows to change icons associated to files of directories, and this is cool for content organization and so on. Unfortunately, right click on small directories on the side pane does not allow to change its properties (such as icon). I try to change the original directory icon, expecting that its side pane version would change accordingly, but surprisingly, nothing appends... Any idea?

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  • Need to modify gnome 3 theme for browser

    - by Mario De Schaepmeester
    I have recently begun using the DarkGreen theme for Gnome 3, however there are some problems on some webpages in FireFox regarding text input fields. This happens in the search field on Google, some fields on Facebook, etc... This theme uses a dark background and light color text for input fields by defaut. I have managed to modify the foreground color of input text succesfully for those fields that were never affected (from near white to gray), but it doesn't help for the "broken" fields. I also want to change the background color for all input fields to white, but I get no luck with that either. In the theme folder there is a gtk folder with a css file. Here are the relevant contents: @define-color theme_base_color #202020; @define-color theme_text_color #25DC00; /* #ffffff */ @define-color theme_bg_color #121212; @define-color theme_fg_color @theme_text_color; @define-color selected_bg_color #3E8753; @define-color selected_fg_color #ffffff; @define-color theme_selected_bg_color @selected_bg_color; @define-color menu_bg_color #555555; @define-color menu_fg_color @theme_text_color; @define-color menu_combobox_border @theme_selected_bg_color; @define-color menu_separator mix (@theme_bg_color, @menu_bg_color, 0.90); @define-color insensitive_bg_color alpha(#0b0b0d, 0.0); @define-color insensitive_fg_color alpha(#717171, 0.50); @define-color insensitive_border_color alpha(#717171, 0.50); @define-color entry_text_color /* #fafafa */ #707070; @define-color entry_background_a #ffffff; @define-color entry_background_b #ffffff; @define-color entry_background_c #ffffff; @define-color entry_background_d #ffffff; /* 121212 */ @define-color frame_color #707070; Is this CSS file the only thing I would need to change?

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  • How to help FGLRX detect a device

    - by user113416
    I have HD 4850 card, Ubuntu 12.10 and installed legacy drivers using makson96 ppa. The issue is, that FGLRX can not detect my device and loads vesa bios. I had the same problem on ubuntu 11.10, 12.04 versions. I want to manually help fglrx find a matching device to load as it shoudld do. It is interesting, why does fglrx search for a device in a PCI:0@1:0:1 Bus? in xorg.cof different bus is indicated: Section "Device" Identifier "aticonfig-Device[0]-0" Driver "fglrx" BusID "PCI:1:0:0" EndSection fglrxinfo display: :0.0 screen: 0 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: ATI Radeon HD 4800 Series OpenGL version string: 3.3.11653 Compatibility Profile Context Here is a part of my xorg log: [ 3.846] (II) VESA: driver for VESA chipsets: vesa [ 3.846] (II) FBDEV: driver for framebuffer: fbdev [ 3.846] (++) using VT number 7 [ 3.846] (WW) Falling back to old probe method for fglrx [ 3.883] (II) Loading PCS database from /etc/ati/amdpcsdb [ 3.883] (--) Assigning device section with no busID to primary device [ 3.883] (--) Chipset Supported AMD Graphics Processor (0x9442) found [ 3.884] (WW) fglrx: No matching Device section for instance (BusID PCI:0@1:0:1) found [ 3.884] (II) AMD Video driver is running on a device belonging to a group targeted for this release [ 3.884] (II) AMD Video driver is signed [ 3.884] (II) fglrx(0): pEnt->device->identifier=0xb7791d8f [ 3.884] (WW) Falling back to old probe method for vesa [ 3.884] (WW) Falling back to old probe method for fbdev Thanks in advance.

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  • ssh: connect to host 192.168.1.7 port 22: Connection refused

    - by Rudra
    I get this error when ever I try to connect my desktop with another desktop using SSH, but I'm able to ping the other desktop successfully. ssh: connect to host 192.168.1.7 port 22: Connection refused When I try to restart sshd, it says sshd : unrecognized service I can connect to remote server using SSH but I'm not able to connect within the local network. Please help me in this regards, Thanks in advance.

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  • xubuntu 12.04 can't change desktop background/wallpaper permanently

    - by Frank
    If I change the desktop background (wallpaper) via right-click on desktop = desktop settings = single image, and select another background image from the list, or add a photo of my own (via the "+" symbol), I can actually change the background image, but after logging out or restarting, the wallpaper is always reset to the original xubuntu 12.04 background. So, basically, I can't find a way to permanently change the desktop background. Any ideas?

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  • Can not authenticate form system tools

    - by alfish
    Whenever I try to run a program from gnome, I get messages like Authenticated is required to run the Gparted Partition Editor The same goes for all programs that need root permission and I try to run from 'System tools' in my gnome-fallback. However the same user can become root in gnome terminal with no problem (I added the user to sudoers). I must mention that I've changed the user's password after OS install, so I think I need to update something but don't know what. I appreciate your hints.

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  • Ubuntu 14.04 doesn't detect my discrete GPU

    - by user258887
    I recently purchased a laptop with an Nvidia GeForce 860m, and have installed Ubuntu 14.04. On my old laptop I had 12.04, which automatically filled Additional Drivers with Nvidia drivers. But on this computer, the only thing in Additional Drivers is Qualcomm. So I manually installed Nvidia, but X Server Settings doesn't seem to detect any GPU... lspci | grep VGA reports only my integrated Intel GPU, but lspci -v reports many things, including the Nvidia GPU: 01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 860M] (rev a2) Subsystem: ASUSTeK Computer Inc. Device 157d Flags: fast devsel, IRQ 16 Memory at ec000000 (32-bit, non-prefetchable) [size=16M] Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at d0000000 (64-bit, prefetchable) [size=32M] I/O ports at e000 [size=128] Expansion ROM at ed000000 [disabled] [size=512K] Capabilities: access denied Don't know what any of that means. Not sure if it's supposed to say 'access denied'... I need my GPU to do CUDA and OpenGL programming. What else can I do to figure out why this isn't working?

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  • Gnome-shell video freeze

    - by josephsmendoza
    So i have a 14.04 Ubuntu Gnome Live USB on my 16GB USB 3.0. It runs fine except sometimes it the screen will freeze, but I know stuff is still happening cause I can hear media playing. I did a little digging and i'm still not sure why, can someone help? Sorry if i don't provide enough details. ubuntu-gnome@ubuntu-gnome:~$ lspci -nnk | grep -iA2 VGA 03:00.0 VGA compatible controller [0300]: NVIDIA Corporation C79 [GeForce 9400}[10de:0867] (rev b1) Subsystem: Apple Inc. iMac 9,1 [106b:00ad] Kernel driver in use: nouveau

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