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by bensimmo
Sat Jul 27, 2019 4:14 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 895
Views: 98817

Re: Raspberry Pi 4 Thread - general discussion

so the upscaling has a problem at 720p resolution and lower? Downscaling 4k content to 1080 (Amazon) was fine for me a week or so ago. (much better once it had a fan and didn't throttle ) That was in Vivaldi/widevine i don't have a 4k TV to test upscaling to it with. any particular links for other t...
by bensimmo
Thu Jul 25, 2019 3:14 pm
Forum: General discussion
Topic: What do these services do?
Replies: 16
Views: 1018

Re: What do these services do?

Start at 100, see if that works. Then increase but it is in steps and probably not worth it. You may need to drop to 83 (the next step under 100 iirc). Do a search, look at retropie they had a small part on it. It does increase speeds, but do you need it? which are these steps, 50,83,100,...? an hi...
by bensimmo
Thu Jul 25, 2019 10:12 am
Forum: General discussion
Topic: What do these services do?
Replies: 16
Views: 1018

Re: What do these services do?

Thank you so in this case, unlike CPU overclocking which I guess is already at the maximum safe frequency, I can just set the MHz certified by the manufacturer? I have a SanDisk Ultra UHS-I, from wikipedia: UHS-I Specified in SD version 3.01.[72] Supports a clock frequency of 100 MHz (a quadrupling...
by bensimmo
Tue Jul 23, 2019 2:39 pm
Forum: Troubleshooting
Topic: Pi 4 with Buster - No hardware acceleration for Video/WebGL in Chromium? [fixed]
Replies: 52
Views: 8703

Re: Pi 4 with Buster - No hardware acceleration for Video/WebGL in Chromium?

A post got locked before I could answer this. Have a look at my beginnings of a new webgl project here: https://otaniemi.conveqs.fi:3000/public/jatkasaari.html Heater, It does work on my Pi4B1 Also tested it at work hours ago in Win10/MS Edge, it had no map. On a Pi4 with Chromium is does have the ...
by bensimmo
Tue Jul 23, 2019 7:41 am
Forum: Off topic discussion
Topic: Something I'd like to see. ( USB to SATA bridge )
Replies: 36
Views: 6139

Re: Something I'd like to see. ( USB to SATA bridge )

In case anyone missed the blog overview of the keyboard and mouse.
https://www.raspberrypi.org/blog/offici ... ard-mouse/
by bensimmo
Mon Jul 22, 2019 6:41 am
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: 11848

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

One problem with CalcPosErr Is Calculate Positive Error, as I read it, is not what you are doing. (That is truthfully how i read it even after reading the posts before). You would need a comment or I would have to work out from the context of the code what it is for. Also if you read in a foreign la...
by bensimmo
Sat Jul 20, 2019 6:25 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: 11848

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

By the way, have you actually seen the source code of the Windows kernel? I suspect it's actually C. Or was when it was created. C++ was not a thing until 1998. Yes. I believe Windows is 98% C, with a little C++ and a tiny amount of C# But they don't really like it Rust in peace: Memory bugs in C a...
by bensimmo
Sat Jul 20, 2019 2:32 pm
Forum: Off topic discussion
Topic: Something I'd like to see. ( USB to SATA bridge )
Replies: 36
Views: 6139

Re: Something I'd like to see.

TL:DR A USB3 to SATA adaptor. I have to actually agree, they did it with the WiFi Dongle before it was part of the Pi, they made. TV HAT because somebody in RPT/F and LibreElec links decided to. No education reason for that at all. The keyboards are designed more than you think, the USB board is a c...
by bensimmo
Sat Jul 20, 2019 2:20 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 895
Views: 98817

Re: Raspberry Pi 4 Thread - general discussion

A1 rated cards are the best, A2's are a waste of money. Here's some further info on thost ratings (I didn't know what they meant til now...learning quickly!) https://www.digitaltrends.com/mobile/best-microsd-cards/ That's a not quite click-bait article. It doesn't actually tell you anything about t...
by bensimmo
Sat Jul 20, 2019 2:13 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 895
Views: 98817

Re: Raspberry Pi 4 Thread - general discussion

kennyc. If you are using it as the desktop, there is a large difference, it the slowest part of the process and a fast small file random read&write μSD does wonders. I've used slow normal class 4s and then class10s, but moving to Samsung EVO/EVO+ * style cards. or the now A1 rated cards has made a n...
by bensimmo
Fri Jul 19, 2019 3:20 pm
Forum: Raspbian
Topic: wheezy archives needed for pygame and touchscreens
Replies: 5
Views: 219

Re: wheezy archives needed for pygame and touchscreens

Looks like somebody made a work around
https://github.com/olegv142/pygamets/bl ... /README.md

It might even work with Buster and you get python3.7 thrown in too :-)

I don't have a touch screen to test with though.
by bensimmo
Fri Jul 19, 2019 2:58 pm
Forum: Beginners
Topic: 802.11AC? defaults to N?
Replies: 7
Views: 283

Re: 802.11AC? defaults to N?

Just a thought, does your router do band-steering? That's often on when there is just one SSID. I use it. iwconfig At the terminal is what you can check the connection with Edit, From room next door, 40.4Mbps @speedtest.net (250mbps line) a bit later 60mpbs iwconfig 5.28GHz Rate is ~135 Mb/s tx-Powe...
by bensimmo
Fri Jul 19, 2019 1:31 pm
Forum: Beginners
Topic: 802.11AC? defaults to N?
Replies: 7
Views: 283

Re: 802.11AC? defaults to N?

99% linux noob here, I've only used linux on older computers booting from a live USB stick for internet browsing. using the raspian from the NOOB installer, from what I can tell it is fully up to date with apt-get update/apt-get dist-upgrade. Internet speeds lead me to believe the WIFI is operating...
by bensimmo
Wed Jul 17, 2019 3:02 pm
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Just tried a fresh install, disappointing...
Replies: 10
Views: 651

Re: Just tried a fresh install, disappointing...

It's not always that site though. It just happens to be for that router/DHCP/server/gateway/portal you are using.
It could be any IP address depending on the setup.
For example I was connected to one yesterday and it was 192.168.144.1 .
That's one that didn't work very well.
by bensimmo
Wed Jul 17, 2019 7:25 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Just tried a fresh install, disappointing...
Replies: 10
Views: 651

Re: Just tried a fresh install, disappointing...

Would the add blocker get in the way. Its still at Stretch iirc, didn't see a buster release when I looked a few days ago. Hotspot portal things are hit and miss with my mobile phone Android N / 7. But its the same with the families phones and tablets with newer version. Some work, some don't and so...
by bensimmo
Wed Jul 17, 2019 7:14 am
Forum: General discussion
Topic: A Pi Pie Chart
Replies: 113
Views: 12503

Re: A Pi Pie Chart

Just note the Overclock though, I assume most boards will run at it, it the one Tom's Hardware used in thier announcement and I just copied it straight off. It a 17% frequency increase. It'll probably go faster as it not sweating with just a gentle fan blowing over it. No doubt we'll see these faste...
by bensimmo
Tue Jul 16, 2019 7:34 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: 11848

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

bensimmo, Hmm... So what we need, with global warming and climate change in mind, is a complete life cycle energy usage analysis from the moment a person starts learning how to program a computer to the moment they finally create a program that computes the correct result. We can assume they stop r...
by bensimmo
Tue Jul 16, 2019 9:42 am
Forum: General programming discussion
Topic: Liberation through Computer Literacy
Replies: 1207
Views: 59361

Re: Project Digital Apocalypse Not Now

I have no idea what popular fictional characters those might be. Perhaps we can find something.
You mean, like if the teletubbies was still popular?
by bensimmo
Tue Jul 16, 2019 9:27 am
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: 11848

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

What was the overall time of each. From scratch, too write, to compile and run (or just run) and get the answer? More typing must take longer (assuming same skill level) Was the compile and run faster than the just run? Which is more efficent then? Which one can most people understand without dedica...
by bensimmo
Mon Jul 15, 2019 7:26 pm
Forum: Troubleshooting
Topic: Issues with wireless mouse and keyboard when USB 3.0 HDD plugged in
Replies: 6
Views: 354

Re: Issues with wireless mouse and keyboard when USB 3.0 HDD plugged in

USB 3.0 causes 2.4GHz interference and your mouse is using that for the wireless link. Try moving the receiver away from the HD and its cables. Try a different USB 3.0 cable for the HD as well. Some of them are very poorly shielded. It happened to my Logitech MK270 too, and that was a SanDisk Ultra...
by bensimmo
Mon Jul 15, 2019 4:38 pm
Forum: General programming discussion
Topic: Comparing Interpreted Language Speed.
Replies: 57
Views: 5769

Re: Comparing Interpreted Language Speed.

But which language makes rotating an ever increasing 3D Fibonacci curl while strobing an external led and measuring the temperature while making a nice sound scale. These "interpreted" languages are all built on someone else's code, just because it binds to something to get it done, doesn't mean the...
by bensimmo
Mon Jul 15, 2019 3:31 pm
Forum: General discussion
Topic: A Pi Pie Chart
Replies: 113
Views: 12503

Re: A Pi Pie Chart

Quick first test at the desktop with temps being displayed in the top corner. (This is a slow fan blowing down-ish over the naked Pi. It is also a quick overclock test. Worked first time and has been looping an webgl2 aquarium for over an hour, room temp probably 24ishC) 1.75GHz ARM / 600MHz GPU / +...
by bensimmo
Mon Jul 15, 2019 1:30 pm
Forum: General programming discussion
Topic: Comparing Interpreted Language Speed.
Replies: 57
Views: 5769

Re: Comparing Interpreted Language Speed.

Benchmarks of turning LEDs on and off, how fast they can read square waves of the gpio. Something a bit more useful to a Pi user? Creating a rotatable object on screen? Playing a bit of music? None of this boring single task number crunching. May as well just do some [email protected] or other BOINC project...
by bensimmo
Mon Jul 15, 2019 6:58 am
Forum: General programming discussion
Topic: Comparing Interpreted Language Speed.
Replies: 57
Views: 5769

Re: Comparing Interpreted Language Speed.

Can you list the allowed interpreted languages. To many of them do fancy things other than read a line, run and instruction, read another and do that. Many do a bit in between, python, basics, JavaScript are all a mixup iirc. The world's too fuzzy to set limits. 32bit unsigned, is that a limit of yo...
by bensimmo
Sun Jul 14, 2019 8:40 pm
Forum: Raspbian
Topic: STICKY: Raspbian 'Buster' 2019-06-20 / 07-10
Replies: 134
Views: 30686

Re: Raspbian 'Buster' 2019-06-20 / 07-10

I clicked this, that the other and found that the number you give https://github.com/raspberrypi/firmware ... a617553e7b
has a parent of
https://github.com/raspberrypi/firmware ... 920ad7c605

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