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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Keyboards and Keyboard Shortcuts’ Category

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Brilliant device: iPazzPort Wireless Mini Handheld Keyboard with Touchpad Mouse Combo for Android TV Box and Raspberry Pi 3 and HTPC and XBMC KP-810-19S – Black: Computers & Accessories

Posted by jpluimers on 2020/01/03

Brilliant device: [WayBack] KP-810-19BTT Mini Bluetooth Keyboard with touchpad – Unisen Group iPazzPort

I got it via Amazon USA ([WayBack] iPazzPort Wireless Mini Handheld Keyboard with Touchpad Mouse Combo for Android TV Box and Raspberry Pi 3 and HTPC and XBMC KP-810-19S – Black: Computers & Accessories), but Amazon in Europe has it as well (this is the German link:[Archive.is] iPazzPort Mini Wireless Handheld Tastatur mit Touchpad: AmazonSmile: Computer & Zubehör; replace .de with .fr, .co.uk, to find your local link).

There are this one is 2.4 Ghz, includes a USB dongle in the battery compartment and requires 2 AAA batteries.

There are Bluetooth and back-lit versions too which cost slightly more.

Via: [WayBack] Raspberry Pi Cluster – Software Team Lead

–jeroen

Posted in Development, Hardware Interfacing, Keyboards and Keyboard Shortcuts, Power User, USB | Leave a Comment »

Magic SysRq key – Wikipedia

Posted by jpluimers on 2019/12/20

Cool: Magic SysRq key – Wikipedia

The magic SysRq key is a key combination understood by the Linux kernel, which allows the user to perform various low-level commands regardless of the system’s state. It is often used to recover from freezes, or to reboot a computer without corrupting the filesystem.[1] Its effect is similar to the computer’s hardware reset button (or power switch) but with many more options and much more control.

Sometimes reading fluffy fluff posts teaches you new things, so be sure to read this one:

[WayBack] I just got trolled by my cat, hard. Last night i left my linux laptop open and running while watching TV in the other room. I came back to find Marley … – Stephen Shirley – Google+

…

I started looking through the kernel logs from last night, to see if there was any indication of the issue starting. And then i saw it. One innocent line that said:

Dec 18 21:26:52 x240 kernel: [373001.156356] sysrq: SysRq : Emergency Remount R/O

The fluffy dumbass had somehow hit the Sysrq [0] key combo to mount all filesystems read-only. This is an old, low-level when-all-else-fails facility for dealing with an linux unresponsive system, and fluff-for-brains Marley had somehow hit alt+fn+s+u.

Sigh.

[0] https://en.wikipedia.org/wiki/Magic_SysRq_key

Via: [Archive.is] I just got trolled by my cat, hard. Last night i left my linux laptop open and running while watching TV in the other room. I came back to find Marley … – Kristian Köhntopp – Google+

–jeroen

Posted in *nix, *nix-tools, Keyboards and Keyboard Shortcuts, Linux, Power User | Leave a Comment »

PS/2 port colours – Wikipedia

Posted by jpluimers on 2019/03/11

I always forget which colours the [WayBack] PS/2 port for keyboard and mouse have.

Some of my old (some call it classic or vintage) mice and keyboards don’t even have a coloured plug.

Luckily, Wikipedia has the answer File:Ps-2-ports.jpg – Wikipedia :

Color Description
Purple Keyboard
Green Mouse

–jeroen

 

Posted in History, Keyboards and Keyboard Shortcuts, Power User | Leave a Comment »

When Windows suddenly starts mixing up keys for various applications.

Posted by jpluimers on 2018/05/14

Since:

  • many people use the left-alt key as it as it is more accessible
  • development tools uses a lot of Alt-Shift based keyboard shortcuts
  • Windows by default has the Left Alt+Shift shortcut enabled to switch language+keyboard layout combinations
  • In most countries, Windows by default has more than one language+keyboard combination installed
  • Windows remembers per application instance which language+keyboard combination is used

every now and then you will get strange characters in only your development tools.

You can change this Windows setting, but be aware that every now and then, various Windows versions will re-enable the Left Alt+Shift even if you have previously disabled it. As of Windows 7 this occurs far less often, but still seems to occur.

Source: Question: Does anyone else have instances in the IDE (Berlin but has happened…

Comments at https://plus.google.com/+JeroenPluimers/posts/ektRa2qW92L

 

Posted in internatiolanization (i18n) and localization (l10), Keyboards and Keyboard Shortcuts, Power User, Windows | Leave a Comment »

OS X Mountain Lion and up: Zoom content on the screen

Posted by jpluimers on 2017/10/27

"Preferences

Accessibiity -> Zoom -> enable checkbox” class=”size-medium” /> Preferences -> Accessibiity -> Zoom -> enable checkbox

I didn’t know this was built-in since Mountain Lion and up, but it is, is startable from the keyboard and it’s tremendously convenient when presenting: [WayBack]: OS X Mountain Lion: Zoom content on the screen.

TL;DR:

  1. System Prefrecences
  2. Accesibility
  3. Zoom
  4. Checkbox

–jeroen

Posted in Apple, iMac, Keyboards and Keyboard Shortcuts, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, macOS 10.12 Sierra, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User | Leave a Comment »

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