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by Hanicef
Thu Aug 22, 2019 7:56 pm
Forum: C/C++
Topic: Unpredictable timing with ioctl - mailboxes and double buffering
Replies: 1
Views: 2009

Re: Unpredictable timing with ioctl - mailboxes and double buffering

The hang is most likely due to vertical sync. The way that monitors work is that the monitor requires a very specific timing for drawing. These timings are synchronized with horizontal sync and vertical sync. Horizontal sync is signaled when the monitor is finished drawing a horizontal line on the s...
by Hanicef
Sun Aug 04, 2019 4:51 pm
Forum: Gaming
Topic: OpenArena and Other OpenGL Games RPI 4
Replies: 29
Views: 4276

Re: OpenArena and Other OpenGL Games RPI 4

Don't forget to go into raspi-config and enabling experimental OpenGL drivers under the advanced options, then restarting the Raspberry Pi.
Not doing so will cause the rendering to be done on the CPU, which is horrendously slow.
by Hanicef
Sun Jul 21, 2019 8:33 pm
Forum: C/C++
Topic: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?
Replies: 303
Views: 10327

Re: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?

I agree! Problem is human psychology too: test shows that people have tendency to first judge word by its first and last character. So people notice at once that it is "Heater" even when you write "Heaterar" or "Heatr" (especially if it is subject) instead and ""Aheate notice fastest. This is exact...
by Hanicef
Sun Jun 30, 2019 7:01 pm
Forum: Off topic discussion
Topic: NASA and Raspberry Pi
Replies: 10
Views: 2108

Re: NASA and Raspberry Pi

What amuses me with this entire scenario is that someone just nonchalantly hooked up a Raspberry Pi into NASA's network. What was he trying to achieve, anyways? It sure as heck wasn't a hobby project he was working on.
by Hanicef
Sun Jun 16, 2019 5:21 pm
Forum: Beginners
Topic: Raspberry Pi 3 Model B+ is SUPER slow
Replies: 20
Views: 1163

Re: Raspberry Pi 3 Model B+ is SUPER slow

it feels like I don't have enough RAM, like if I had 40 opened tabs on my desktop computer Try running sudo sysctl vm.swappiness=10 in the command line and see if that helps. Usually, Linux is trigger-happy with swapping. It is sometimes willing to swap even with plenty of RAM left. The command abo...
by Hanicef
Fri May 24, 2019 6:19 pm
Forum: Off topic discussion
Topic: Anyone using a Pi (as a tablet) as their main computer?
Replies: 23
Views: 5664

Re: Anyone using a Pi (as a tablet) as their main computer?

I have a Raspberry Pi 7" touch screen, but I haven't really used it much. It was originally for a project to replace a sea chart (they are absurdly expensive), and while it worked, it unfortunately wasn't good enough because we couldn't find a good sea map, which lead to the image being very blurry....
by Hanicef
Sat May 04, 2019 6:09 pm
Forum: General discussion
Topic: How to auto run a Python/Bash Script in headless mode.
Replies: 4
Views: 365

Re: How to auto run a Python/Bash Script in headless mode.

You can write a systemd service that runs on start. Based on your scenario, a service like this should suffice: [Unit] Description=Start script [Service] Type=oneshot RemainAfterExit=yes ExecStart=/usr/bin/sh /path/to/script.sh [Install] WantedBy=multi-user.target Create a file named start-script.se...
by Hanicef
Sun Apr 28, 2019 4:28 pm
Forum: Off topic discussion
Topic: Telnet
Replies: 4
Views: 513

Re: Telnet

There's even some running on Raspberries https://www.raspberrypi.org/forums/viewtopic.php?t=131201 Awesome! I had no idea that people were still developing these (I thought they all of them were just old servers that has been running for years). Old technology like this must be very lightweight, so...
by Hanicef
Sat Apr 27, 2019 2:59 pm
Forum: Off topic discussion
Topic: Telnet
Replies: 4
Views: 513

Telnet

Recently, I've been looking into old BBS servers on telnet , and it's interesting to see that they are still used even to this day (although nowhere near as much as they used to be). Does anyone remember these old servers? I think it's just interesting to occasionally go back in time and look how th...
by Hanicef
Thu Apr 18, 2019 5:44 pm
Forum: General discussion
Topic: STICKY: Introduce yourself!
Replies: 3518
Views: 102662

Re: STICKY: Introduce yourself!

Hey, all! I'm a software developer with a bit of knowledge about hardware too, and I've been using my Raspberry Pi as a main computer after my old one broke. The primary reason being the price; I didn't have a lot of money to spend as I'm still studying, and because of that I needed something cheap....

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