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User: geantvert

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  1. Where did you get that strange idea Linux 3D performance is terrible? I won't deny that OpenSource drivers can be less efficient that close source driver especially on devices that are not properly documented and must be reversed engineered. However, if you only consider the drivers provided by the vendors, the performances are usually similar to the Windows driver.

    Of course, Windows is usually a higher priority for the vendors so there is often a small delay before a good driver becomes available on Linux for new hardware.

  2. Re:Not quite "all in" though on Linux 4.4 Kernel To Bring Raspberry Pi Graphics Driver, Open-Channel SSD Support (phoronix.com) · · Score: 1

    So webcam support is broken in 4.4-rc1. Is that on the Pi or on x86?

  3. Re:LXTerminal on Ask Slashdot: What Terminal Emulator Do You Use? · · Score: 1

    You missed the point. I assume that by "profile" you mean the termcap or terminfo entries. They are not there to "map the keyboard onto the imaginary terminal". Their purpose is to tell to the applications how to talk to the terminal. When an shell application such as emacs or vim needs to perform an action such as moving the cursor or changing the color of the text, it needs to know which sequence of special characters must be sent to the terminal. This information is provided by the local copy of the termcap entry. The terminal that will interpret those characters may be located several thousands kilometres away.

    This is especially useful for systems that can be accessed remotely. The terminal emulator you use to get a local shell on your machine is only a special case. Each of those 2615 entries is a driver for a terminal or a terminal emulator that could potentially be used to connect to the machine.

    Consider for instance the putty entry. Putty is a windows terminal emulator so you could think that it is useless on a Linux system but removing it would make it more difficult to access your Linux machine from Window.

    For instance, I see that there is a hp9845 in my database so if tomorrow I find a old HP9845 (http://www.hp9845.net/) in a junk shop, I could potentially connect it to my linux box via a serial line. From there I could log via SSH into my account on the Titan supercomputer at Oak Ridge National Lab. Emacs and other tty application should work fine assuming that the hp9845 termcap is also installed on Titan.

    Of course, the sysadmin on Titan never imagined or cared that I could access the machine from an old hp9845. Most entries in the termcap data may seem useless but they are a bit like with multimedia codecs; it is better to have as many as possible even if you do not plan to ever use them.

    Also, even if we ignore old hardware and emulators for old systems, we should not underestimate the number of entries that are potentially relevant for a significant amount of users: konsole (KDE), eterm (term in emacs), putty (Windows), vte (gnome), linux (the linux console), bsdos-*, xrvt, screen, tmux, ...

    There are also plenty of variants for different numbers of colors (e.g. xterm vs xterm-256color) or multiplexers (screen.gnome, screen.linux, screen.xterm, ...).

    You are wondering which entry to choose. Actually, you should not have to make a choice unless you are using a real terminal connected via a serial line. Any terminal emulator should already select the right termcap entry for you. What you may want to do is specialize the provided choice to get more feature. For instance change TERM=xterm into TERM=xterm-256color so that your applications know that they can use 256 colors instead of the default 32.

     

  4. Re:just plain old xterm, with this on Ask Slashdot: What Terminal Emulator Do You Use? · · Score: 1

    I agree. I am a big terminal user and after trying a few, I am back to XTerm.

    A few years ago, XTerm was limited to bitmap fonts which was quickly becoming a problem at high resolution. This is not the case anymore.

    For me, the killing feature is the ability to change the default background color using an escape sequence. I have a few shell aliases (.red, .blue, ...) to change the color theme. Somehow, this simple feature is not supported by most other terminal emulators.

    Also, XTerm uses the X11 resource mechanism. That is a bit obsolete according to modern standards but that makes it highly configurable for specific needs.
     

  5. Re:Mark my words from the future on NASA Eagleworks Has Tested an Upgraded EM Drive · · Score: 1

    Give us a break ... I mean ... line breaks!
     

  6. Re:Not programming semantics, but the coder on Linus Rants About C Programming Semantics (iu.edu) · · Score: 2

    To be honest, this is something I would also do on slightly more complex sequence of if-then-else-if that are supposed to try all possibilities. Similarly, I always try to enforce the 'default:' on switch statement even if I know that all possible values are tested.

    That may be unnecessary at the time I write the code but that can save my ass if someone decides to make a small 'harmless' change in a few months or years.

    The funny thing is that in C++, it is actually possible to reach the final 'else' assuming that 'p' is not a pointer but of a type that overloads 'operator bool' and 'operator !'.

  7. Re:For those of you that haven't done on Celebrate the 200th Birthday of George Boole With Logic (i-programmer.info) · · Score: 1

    Obviously, learning formal logic did not help improve your writing skills.

  8. Re:More consolidation... on Western Digital To Buy SanDisk (reuters.com) · · Score: 2

    Please! Mark parent as Funny

  9. Re:So when's "gun control" going to stop guys with on Guy Creates Handheld Railgun With a 3D-Printer (engadget.com) · · Score: 2, Funny

    Please! Do no obscure the debate with facts!

  10. Re:Are the laws of physics the same everywhere? on How To Make Messages Easy For an Alien Race To Understand (hackaday.com) · · Score: 1

    Hummm... I am pretty sure that any quantum physicist would disagree with you.

  11. Re:There are no "aliens" on How To Make Messages Easy For an Alien Race To Understand (hackaday.com) · · Score: 1

    Phrenology! Is that similar to Dickology but only applied to human heads?

  12. > What about a constant that describes the relationship of the volume of a sphere to its radius/diameter?

    Uhhhh.... Pi? or if you prefer 4/3*Pi

    Anyways, I do not believe that Pi, 2 Pi or 4/3 Pi are fundamentally different.

    Let's assume that today we receive a message from outer space and with the number 1.01015254455 .

    How much time will it take to figure out how it was obtained?

  13. Plenty of NASA images show civilization on Advanced Civilizations Probably Don't Exist In Our Galactic Neighborhood · · Score: 1
  14. ASL on The Most Important Obscure Languages? · · Score: 1

    ASL is the ACPI human language.

  15. Re:Hack easy on the IDEs .. on "Hack" Typeface Is Open Source, Easy On the IDEs · · Score: 1

    Or if you are not root, drop it into ~/.fonts/

  16. Re:Emacs on "Hack" Typeface Is Open Source, Easy On the IDEs · · Score: 1

    Also I noticed that in 11pt the 'u' is taller than other characters in emacs and in some gtk2 apps but not in xterm !!!!

  17. Emacs on "Hack" Typeface Is Open Source, Easy On the IDEs · · Score: 1

    Looks good. I'll give it a try.

    However, the ttf version has a problem in Emacs: There is a lot of horizontal space between the characters. About 1/2 the character width.
    I do not see this problem in xterm or other applications. Also the font looks fine in the emacs font selector dialog (that's the GTK2 dialog).

    The otf version looks fine in Emacs

  18. Re:Your maths is off... on Baidu's Supercomputer Beats Google At Image Recognition · · Score: 1

    Being even more pedant I will point out that the improvement is a lore more. What is important here is the error rate.

    Simply speaking, they went from 4.82 to 4.58 so the improvement is (4.82-4.58)/4.82 = 0.0497 ~= 5%

    Another way to see that is that Google made 48200 errors on the full set of 1 Million images while Baidus made only 45800 errors.

     

  19. Re: To answer your question on Intel Moving Forward With 10nm, Will Switch Away From Silicon For 7nm · · Score: 4, Insightful

    You wll never be happy because laptops will never be as powerful as desktops. Simply speaking, if you manage to create a laptop as powerful as a desktop then you can also create a more powerful desktop. That is not a matter of computing power but of temperature. Desktop are by definition bigger than laptops so they can dissipate more heat.

  20. Re:Piracy. on Wired On 3-D Printers As Fraud Enablers · · Score: 2

    Think of the children!

  21. Re:Republicans have already outlawed this on Rapid Test For Ebola Now Available · · Score: 1

    Don't worry. I don't know you but I also feel that I hate you.

  22. Re:Of course on Rapid Test For Ebola Now Available · · Score: 1

    You are a genius

  23. ADSL/Cable Box on Gadgets That Spy On Us: Way More Than TVs · · Score: 1

    I always wondered how hard it would be for an ISP to hide a microphone in all their ADSL/Cable Box.

  24. Re:This is Old on Two New Male Birth Control Chemicals In Advanced Stages · · Score: 1

    No. It is called D&D but some say it is only a placebo.

  25. Re:Think of the children. on Two New Male Birth Control Chemicals In Advanced Stages · · Score: 1

    You missed the reference. I give you a hint. It starts with Monty and ends with a snake.