Monthly Archives: November 2014

Link: Do you run one or more TBS PCIe cards under Linux? Check your IRQs…

The other night I happened to have a ssh session open to a TVHeadEnd backend system (running Debian Linux) when this message appeared:

Message from syslogd@backend at Nov 6 23:03:02 …
kernel:[452276.219160] Disabling IRQ #16

And then the satellite card essentially stopped working – it would act like it was receiving signals, but they were all complete garbage until I rebooted the system.

It turns out that the system was putting several things on IRQ #16, as revealed by cat /proc/interrupts

 16:    1669004          0          0          0  IR-IO-APIC-fasteoi   ehci_hcd:usb1, SAA716x Core, SAA716x Core, snd_hda_intel

In searching for a solution to this, I came across this thread (and also this thread), which informed me that the TBS cards were using the old style of interrupts, and that it would be a good idea to change that so they use the newer PCI-MSI-edge type. The procedure for doing that is simple, and easily reversible if it doesn’t work.

Full article here:
Do you run one or more TBS PCIe cards under Linux? Check your IRQs… (Free-To-Air America)

Note that the advice given here may also apply to other types and/or brands of TV tuner cards installed on a Linux system!

Link: 10 Sed (Stream Editor) Command Examples

Sed is a stream editor in UNIX like operating system which is used for filtering and transforming text. Sed is derived originally from the basic line editor ‘ed’, an editor you will find on every unix system but one that is rarely used because of its difficult user interface.

Full article here:
10 Sed (Stream Editor) Command Examples (NextStep4it)

Link: 11 ‘Avconv’ Commands to Record, Convert and Extract Videos & Audios from Linux Terminal

In the previous article, we talked about How to Record Desktop Video & Audio Using ‘Avconv’ Tool. We mentioned that there are many other ways of usage for the “avconv” tool to deal with multimedia streams and files.

In this article we’re going to discover the most important 10 commands to use with the “avconv” program.

Full article here:
11 ‘Avconv’ Commands to Record, Convert and Extract Videos & Audios from Linux Terminal (Tecmint)
Related:
Record Your Desktop Video and Audio Using ‘Avconv’ Command (Tecmint)

If your printer won’t work under OS X Yosemite, see this thread

If you have a printer that worked fine under OS X Mavericks, but stopped working when you upgraded to Yosemite, this thread may contain the answer:

Ricoh MP C2500 not printing after upgrading to Yosemite

Note that the fix included applies to several brands and models of printers, not just the Ricoh model mentioned in the thread title. The notes state, “This script should work on those that use the pxlmono/pxlcolor, hpijs, and samsung-gdi driver packages. It will not work for the m2300w driver at this point. I hope to be able to figure that one out too, but don’t count on it.”

Link: How to set the PATH variable in Bash

So, how do you set the PATH variable in Bash?

That’s a very simple task, which should take less than a minute to complete. However, for the benefit of those not familiar with the Bash shell or the PATH variable, let’s start with a very brief introduction.

Full article here:
How to set the PATH variable in Bash (LinuxBSDos.com)

Link: How To Download Multiple Files By Selecting Links In Chrome

As the name implies, uSelect lets you select one or more download links and provides you the option to either open the links or download them. There are many extensions similar to this, but it stands out because it lets you select links in a more visual, user-friendly way with just a few mouse clicks.

Full article here:
How To Download Multiple Files By Selecting Links In Chrome (Make Tech Easier)

Link: dupeGuru – Find And Remove Duplicate Files Instantly From Hard Drive

Disk full is one of the big trouble for us. No matter how we’re careful, sometimes we might copy the same file to multiple locations, or download the same file twice unknowingly. Therefore, sooner or later we will end up with disk full error message, which is worst when we really need some space to store important data. If you believe your system has multiple duplicate files, then dupeGuru might help you.

Full article here:
dupeGuru – Find And Remove Duplicate Files Instantly From Hard Drive (Unixmen)

Link: 19 Ways To Install Linux

This week I wrote a tutorial at About.com showing how to dual boot Windows 7 and Ubuntu.

I have written a number of installation guides over the past few years. On many occasions I have included the installation steps as part of the reviews but for trickier installs and for more recent reviews I have created separate guides.

This article lists all of the Linux installation tutorials and guides that I have created with a brief description of each one.

Full article here:
19 Ways To Install Linux (Everyday Linux User)

Link: 15 ‘pwd’ (Print Working Directory) Command Examples in Linux

For those working with Linux command Line, command ‘pwd‘ is very helpful, which tells where you are – in which directory, starting from the root (/). Specially for Linux newbies, who may get lost amidst of directories in command Line Interface while navigation, command ‘pwd‘ comes to rescue.

Full article here:
15 ‘pwd’ (Print Working Directory) Command Examples in Linux (Tecmint)

Link: How to Run Android Apps in the Google Chrome Browser

While we have all been enjoying Android apps on our smartphones and tablets, the time has come to use the same apps and games on our PCs. Thanks to the talented developers, we now have a workaround that helps us run any Android app or game in the Google Chrome browser. All you need is a few extensions and you are good to go.

Full article here:
How to Run Android Apps in the Google Chrome Browser (Make Tech Easier)