### Pages with category Desktop

• I've got those 3 button mice from SGI as I was working with Indy's and O2's. I also have keyboards. Those are real good quality!

Yesterday, I tried to right click and somehow, nothing happened. At first I thought maybe it was X going banana, but trying again and restarting did not change anything. I reset my KVM too, just in case. Still nothing.

• The mouse pad worked just fine for days and "all of a sudden" my Acer, an Aquire R 14 (Acer Touch R3-471T), but it looks like many if not most Acers have the same issue.

The fact is that I use the Fn + F8 key to mute the speaker all the time, whenever there is an ad in a video, I really have to do that!

The Fn + F7, which is right next to the Fn + F8, is actually a key one can use to turn the Mouse Pad ON and OFF. Do it once again, Fn + F7, and the Mouse Pad will work again.

Hopefully you had a USB mouse or like me, you installed Synergy and thus could use your Linux mouse anyway. ...

• Several times, you may have been creating views and wondered: how the heck could I add a link to my node Edit page, or if you are like me, my node Outline, Track, Convert pages on top of the Edit page.

This is actually pretty easy.

In the setup of the field, select Rewrite the output of this field and enter the text of the link as it should appear (i.e. 'Edit' or 'Convert'.)

• Often, when one writes a game, one wants a specific resolution to make sure that the game works as expected. Zoomed out textures may not look as nice and the speed could be affected too (drawing 1280x1024 pixels instead of 640x480 is more than 4x higher and all video boards won't be as fast as required in this case). Under MS-Windows you can ask the system to change resolution (size & depth) with a call to ChangeDisplaySettings().

• That took me forever because I could not find the place where my Unity icons where to edit them in order to add the necessary LC_TIME definition. This being said, it's relatively easy except that you have no real control over the exact formt, only the locale.

So...

I created a file named starter under my thunderbird folder, if you don't have such (because you're using the stock version of thunderbird) then you may want to create a bin folder as in:

mkdir ~/bin

The starter file is just a text file with a shell script like this:

#!/bin/sh
LC_TIME=en_DK.utf8
export ...
• When I downloaded FileZilla, somehow I also got Chromium and some TV something downloaded and installed under Win10. I removed the TV crap, really no need, but I was thinking to keep Chromium since I need to test my websites with it once in a while. Cool, but that stupid software installed itself to auto-start!!!

I don't think I had the option to NOT have such a feature turned on.

So... I had to search for it because apparently no one knows how to handle Auto-Start features under newer versions of MS-Windows. It is actually... take a deep breath... in the Task Manager. (At least in ...

• Under X-Windows, I use the QWERTY keyboard because I'm so used to it. But once in a while I want to write something with an accent or a special character. To do that I use the compose key. In my case the compose key is the Caps Lock key. So I push the Caps Lock once, and then two other keys to get the character I want. For example, the c with a cedilla is c with a comma: ç.

The following is the content of the Compose file available on Linux Ubuntu (/usr/share/X11/locale/en_US.UTF-8/Compose):

# UTF-8 (Unicode) compose sequence
# by David.Monniaux
#

# Part 1 - Manual ...
• Use at your own risk! These are links to other pages outside of this website:

• As I upgraded from Ubuntu 10.04 to 11.04, I got a bit of a surprise... many system windows started using a new type of scrollbar that is pretty much unusable (at least it slows down my production time on my desktop.)

Yes, these invisible scrollbars (which they call Overlay Scrollbar) are... invisible. Now you have to hover the mouse at the right place to get arrows that you can grab and move up and down. Oh! Did I say that you have to however in one place and these arrows, on purpose, appear AWAY from your mouse? This means you need to then move the mouse over those arrows before you can

• At some point in time, I upgraded Ubuntu and my Gnome Keyring stopped working. So each time I do ssh I have to enter the password at the prompt and that's a bit annoying after a while (depends how much I access the servers, obviously.)

I read many threads ZERO of them gave me an answer I want to hear. All of them speak of things that do not make sense in that situation. So I tried to install a brand new clean 14.04 server + ubuntu-desktop and guess what... Gnome Keyring is installed and everything makes me think that is is correctly installed (I get the correct SSH_AUTH_SOCK value) and ...

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All software make use of numbers. Everything is a number. The most basic number in a computer is 0 or 1. This is called a bit. These are represented with electricity. Although in most cases we see it as 0 - Ground and 1 - Voltage (i.e. 1 volt), the bit representation in software and in hardware may be interpreted either way (i.e. a 0 could mean that the voltage is 1V and not 0V.)

Combining these zeroes and ones we offer end users to handle much larger numbers. With 8 bits, you can have numbers from 0 to 255 (unsigned) or -128 to +127 (signed.) Now a day, computers can handle a much larger number of bits in one cycle. Most processors use 64 bits but they can calculate numbers on 128, 256, and for some 1024 bits at once. Also with parallelism, the size can be viewed as even larger (i.e. handling a 64 bit number in 1,536 threads like on my old nVidra Quadro 600 is equivalent to one large number of 98,304 bits! That would be 2 power 98,304 possibilitie or about 2.8359e+29592 in decimal.)

Integers are easy to handle. Although when working on math problems you generally see the set of avaialble numbers as equivalent to N although mathematicians know that computers can really only handle a limited set of numbers. For example, on a 64 bit computer, the usual range is -9223372036854775808 to 9223372036854775807, This is generally enough although at times some equations have to be reworked to avoid really large or small intermediate numbers that work fine in math equations, but not so well on computers.

Now, math also includes other sets of numbers such as D, R, and C. Computers do not offer any way to represent numbers in R or C but they can offer D to some extend. These numbers are called floating point numbers because we do math using an exponent. The exponent makes the decimal point "float" in any location as the number used for the exponent offers. Using a 64 bit floating point, you can have positive and negative numbers with precision varing betwee 10-308 and 10+308. This includes a positive zero (+0) and a negative zero (-0), which is import in a few cases (although +0 = -0 is true, you can get the sign of a number and distinguish both zeroes). Note that at first decimal numbers were going to also have a positive and negative zero, but it was instead decided to have one more negative number (remember, with 8 bits we have signed numbers from -128 to +127, this is because in the positive numbers we have a 0 which we don't have in the negative numbers.)

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