Archive for the ‘Ubuntu’ Category
Download mlbviewer:
Go and grab the latest version from the sourceforge page below:
http://sourceforge.net/projects/mlbviewer/
Unrar:
tar -zxvf mlbviewer2012.tar.gz
It doesn’t require any installation but you will need a few extras and the easiest way to install them is shown below:
Download PyXML:
PyXML is an XML processing tool for python which this project uses, sometimes it can be tricky to install python modules so we’ll be using setuptools which you can get from the link below.
If you’re unsure of what version you need, open terminal and type “python”, this will show the version of python you’re running. Mine was 2.7.4 so I downloaded “setuptools-0.6c11-py2.7.egg” I would imagine yours would be similar.
http://pypi.python.org/pypi/setuptools#cygwin-mac-os-x-linux-other
Once you have it, run it (replacing the version you downloaded for the one here):
sudo sh setuptools-0.6c11-py2.7.egg
Now to install PyXML it’s as simple as running:
sudo easy_install pyxml
That’s it, you’re done.
Optional – Install MPLAYER2:
MPLAYER2 offers at lot of advantages over MPLAYER however we’re most interested in it because it offers better streaming support and handle stream rate switches (important if you enable adaptive streaming in nexdef mode).
sudo add-apt-repository ppa:motumedia/mplayer-daily
sudo apt-get update
sudo apt-get install mplayer2
(Thanks to – Web Upd8)
Optional – Install mlbhls (for nextdef | HD):
Instructions as per in REQUIREMENTS-2012.txt in the mlbviewer package.
You’ll also need some extra packages which aren’t stated:
sudo apt-get install libconfig-dev libcurl4-gnutls-dev
svn co https://mlbtv-hls-nexdef.googlecode.com/svn/branches/experimental mlbhls
cd mlbhls
make
sudo cp mlbhls /usr/bin
Once that’s done, you should be able to get the higher bitrate streams too!
Using mlbplayer:
Setup:
The first time you run mlbviewer it will generate a config file which you’ll need to enter your Premium MLB.TV account details in, running mlbviewer will tell you where this file is located:
python mlbviewer.py
Go edit the file and enter your email as the “user” and your password after “pass”.
Now re-run mlbviewer and it should start up!
python mlbviewer.py
Sit back and enjoy!
fatal error: curl/curl.h: No such file or directory
If you’re missing the curl/curl.h header file, chances are you’re just missing the correct dev package file for the curl library.
sudo apt-get install libcurl4-gnutls-dev
That should fix it.
If you’re getting the following error:
fatal error: libconfig.h: No such file or directory
Then you’re probably missing the libconfig-dev package from your system. Simply run the following command and it’ll fix it:
sudo apt-get install libconfig-dev
After upgrading from Ubuntu 11.10 to 12.04 I found gimp couldn’t access the shared libraries it needed, most likely an error with symbolic links as described by lovelyindia in this post.
Fix 1:
He managed to fix the issue by removing gimp and purging the offending libraries and then letting apt deal with the libraries when he re-installed gimp, as per the below commands:
sudo apt-get update
sudo apt-get purge gimp libgegl* libbabl*
sudo apt-get install gimp
sudo apt-get clean
While this is likely to work for most people encountering this issue, it didn’t for me.
Fix 2:
Then I remembered I had used the repogen source list generator, in which I chose to include the gimp svn build. While you may not have gone about it the same way, you may also have a different repository in your sources.list file which is causing this issue, if the previous method did not resolve the issue.
In order to fix this, I had to open the sources.list file and comment out the offending repo.
sudo gedit /etc/apt/sources.list
Now search for any reference to gimp, in my case this was the lines I changed:
#### Gimp SVN - https://launchpad.net/~matthaeus123/+archive/mrw-gimp-svn
## Run this command: sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 405A15CB
deb http://ppa.launchpad.net/matthaeus123/mrw-gimp-svn/ubuntu precise main
I commented out the line linking to the repo by adding a ‘#’ to the front, as below:
#### Gimp SVN - https://launchpad.net/~matthaeus123/+archive/mrw-gimp-svn
## Run this command: sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 405A15CB
# deb http://ppa.launchpad.net/matthaeus123/mrw-gimp-svn/ubuntu precise main
I then uninstalled gimp, once I knew it may have been the newly added repository that I had added:
sudo apt-get purge gimp
Then I saved and exited the file and updated apt:
sudo apt-get update
I then re-installed gimp:
sudo apt-get install gimp
This solved the issue for me, I hope this helps!
If you’re trying out the latest version of Ubuntu, 12.04 or Precise Pangolin and you want to keep your old /home partition, chances are you’ve come across the installation hanging on a process “Removing conflicting operating system files…”. No worries, this seems to be a common bug and there’s a pretty easy work around.
Continue with the installation, without asking for the /home partition to be mounted. Only set the root partition (/) and your swap space.
Once the installation is complete, reboot and load it up.
Now, you’ll want to find the partition that /home is mounted under, this will likely be /dev/sdxN, where x is the drive letter and N is the partition number (i.e mine is located under /dev/sda5).
If you’re unsure, you can list the possible drives using the following command:
ls /dev/ | grep sd
And then you can mount each drive under in a temp directory and check what’s in there:
mkdir temp
mount /dev/sda1 temp
Once you know which partition you want, it’s time to edit your /etc/fstab/
sudo gedit /etc/fstab
For those who don’t go digging around in the config files of linux, this may look pretty daunting, but it isn’t. All you really need to do is add a new line to mount your home partition. Here’s mine:
/dev/sda5 /home/ ext4 defaults 1 2
The first part is the partition that’s being used, next what the partition is. Next is the file system type. Followed by default options and then the dump and pass values.
Once you’ve saved this file with the appended line, reboot your system. Now you should find your old home partition is mounted normally and you can get on with your install.
Those pesky windows buttons (maximise, minimise and close) default to the left of the menu bar after a new Ubuntu installations, and it’s been happening since 10.04. Most people, like myself, are stuck in our ways and just want them back where they belong. It’s pretty easy to do this, just open up a terminal (ctrl+alt+t) and copy in the following:
gconftool -s /apps/met>gconftool -s /apps/met>gconftool -s /apps/metacity/general/button_layout -t string menu:minimize,maximize,close
Once you hit enter, you should see the buttons return to their rightful place on the right, also in the right order.
Install Jupiter
Instructions for Ubuntu 11.10, 11.04, 10.10, 10.04: http://www.webupd8.org/2011/09/jupiter-applet-finally-available-for.html
sudo add-apt-repository ppa:webupd8team/jupiter
sudo apt-get update
sudo apt-get install jupiter
Jupiter comes with a useful script to disable and re-enable the touchpad/track pad, it can be ran using the following command:
sudo /usr/lib/jupiter/scripts/touchpad
Now all you’ll need to do is add this command to a keyboard shortcut, below are instructions for several desktop environments.
In xfce:
Applications > Settings > Settings Manager
Click Keyboard
Click on the “Applications Shortcuts” tab.
Click Add:
Here you will be promped with a new window asking for the command you wish to run, enter the following:
sudo /usr/lib/jupiter/scripts/touchpad
Click OK and it will now ask for a keyboard shortcut. Simply press the key combination you want to assign to disabling the touchpad (for example, I used Alt+F1) the keys you’re pressing will show up and the window will close.
You’ll now see the command and shortcut in the list and you can now press that key combo to disable the trackpad and press it again to re-enable it.
In Gnome:
In Unity:
bish bash bosh.
Temporary proxy:
Where proxy.addr is the proxy address, 4040 is the port number. Some proxies may require “http://” before the address.
export http_proxy="proxy.addr:4040"
export ftp_proxy="proxy.addr:4040"
export https_proxy="proxy.addr:4040"
If you run this in a terminal, any programs opened from that terminal will adhere to the proxy you set but any other applications will not. This makes it useful if you just want to launch a browser for a quick browsing session but don’t need the whole system to access the internet.
If you do need your entire system to access the network, you can add these to the bottom of “~/.bashrc” this will enable any new programs running and the whole system (after a restart) to use the settings. Essentially ~/.bashrc are commands run when a terminal is opened.
NOTE: If you do this, when you remove them your machine will likely need a restart to undo the changes.
Proxy with login
If your proxy server requires a login, this is an addition of the above however the syntax is as follows:
user:pass@proxy.addr:4040
APT Proxy:
APT (used for system updates) has its own proxy settings, which seem to ignore the above settings.
Where nano is the editor, if you prefer use a graphical one such as gedit, kedit etc.
sudo nano /etc/apt/apt.conf.d/02proxy
add:
Acquire::http::Proxy "http://proxy.addr:4040";
Source : http://naveenubuntu.blogspot.com/2011/09/updating-packages-behind-prxy-in-ubuntu.html
Wireless (BMC4313) Drivers:
There seems to be some issues with the current range of broadcom drivers, there are several options and some barely work and give very poor wireless signal and flaky connections.
Check you wireless card
lspci | grep Broadcom
Output:
03:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
Installation:
There are two options here:
Option 1
You should also be able to use the drivers in Additional Drivers, the “Broadcom STA proprietary wireless driver”, however before doing this you need to run these commands to install the required headers and tools as it seems this step was missed out:
sudo apt-get install build-essential linux-headers-generic
sudo apt-get build-dep linux
To check to see if you have this directory do this:
ls /lib/modules/`uname -r`/build
Now go to Settings > Additional Drivers and simply click install on the “Broadcom STA proprietary wireless driver”, reboot and you should experience much better wireless signal and connection stability.
Option 2
If this doesn’t work for you un-install those drivers and download the source drivers and build them from source and this works well, these can be found here: http://www.broadcom.com/support/802.11/linux_sta.php.
Graphics (HD 6320) Drivers:
Installation:
These can be found in Settings > Additional Drivers.
Install and reboot.
NOTE: This driver doesn’t account for sound over HDMI, the sound will continue to come out of the speakers. I’m looking in to a fix for this.
Fixing the “AMD Ubsupported hardware” Watermark:
You’ll probably now notice a watermark at the bottom right hand of the screen, reading “AMD Ubsupported hardware”. While the drivers are working away, they seem to think it’s unsupported. You can either remove the propriotry drivers and use the open source version. Or you can run the following script (found here) to remove it:
[gist][/gist]
To run, either right click and save as on the link to “view raw” or copy and paste in to a file and save the file as “fixwatermark.sh”
Make executable:
chmod +x fixwatermark.sh
Run:
sudo ./fixwatermark.sh
(Thanks to Andy pointing out in his comment, this needs to be run as root (I’ve added the sudo above).
Reboot your system and the driver will still be running but the watermark will be removed.
./blender
connect failed: No such file or directory
ndof: spacenavd not found
AL lib: pulseaudio.c:331: PulseAudio returned minreq > tlength/2; expect break up
Floating point exception
Download and install the associated package to your processor from here : https://launchpad.net/ubuntu/oneiric/+package/python-openal
Restart your computer and the issue should now be resolved.
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About Hi, my name is Alex. I just got through studying Robotics at UWE and I am continuing to do a MSc by Research also in Robotics.
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Any information on this site is for informational purposes only, I take no responsibility for the accuracy, reliability, bla, bla or bla to it. Any information you use, you are using at your own risk. I am in no way liable for any loss, damage of data, hardware or anything else in connection with the use of this website.
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