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by jahboater
Thu Nov 05, 2020 10:18 am
Forum: Python
Topic: Python getting ever more popular
Replies: 15
Views: 703

Re: Python getting ever more popular

Which means what exactly? Nothing much. I simply thought that readers in the Python section of the forum might like to know that their language is gaining popularity according to one well known index. For the first time in 20 years C and Java no longer take the top two positions. Now its C and Pyth...
by jahboater
Thu Nov 05, 2020 10:05 am
Forum: Troubleshooting
Topic: Using 128GB microSD card - Raspberry OS installation error
Replies: 9
Views: 337

Re: Using 128GB microSD card - Raspberry OS installation error

I agree with HawaiianPi about noobs and also suggest you use raspberry pi imager to instal raspberry pi OS directly on to the SD card. +1 Forget NOOB's. Use a Raspberry Pi OS version from here: https://www.raspberrypi.org/downloads/raspberry-pi-os/ and do not format the SD card first. Using a 16GB ...
by jahboater
Thu Nov 05, 2020 9:30 am
Forum: C/C++
Topic: [Escaped] Another Circle of Hell : 3B works, 1B+ doesn't
Replies: 41
Views: 1917

Re: [Escaped] Another Circle of Hell : 3B works, 1B+ doesn't

It is unspecified whether a call to the function uses the inline definition or the external definition. I presume it is intended to be a "hint" to the compiler, just like the register or the restrict keywords - which the compiler is free to ignore. This might be of interest: -fkeep-inline-functions...
by jahboater
Thu Nov 05, 2020 12:51 am
Forum: Beginners
Topic: Raspberry pi 400
Replies: 125
Views: 4622

Re: Raspberry pi 400

"Large" depends on whether or not you actually need/want the numeric keypad. Look at "ten key less"/TKL keyboards. I'm about replace my old Filco Majestouch 2 ( https://www.amazon.co.uk/Filco-Majestouch-2-Tactile-Action-Keyboard/dp/B006TTL2PI ) with one of these https://www.keyboardco.com/keyboard/...
by jahboater
Thu Nov 05, 2020 12:41 am
Forum: Beginners
Topic: Raspberry pi 400
Replies: 125
Views: 4622

Re: Raspberry pi 400

sandwich wrote:
Wed Nov 04, 2020 5:30 pm
Rpi seem to have blinders on. They lost the plot.
Really?
Lets see how the sales figures compare.
by jahboater
Thu Nov 05, 2020 12:31 am
Forum: Python
Topic: Do I need a Raspberry if I have a Macbook laptop?
Replies: 6
Views: 355

Re: Do I need a Raspberry if I have a Macbook laptop?

The Mac can run Python better and faster, BUT you will need to install Python3 yourself, as Apple are still stuck in the Python2 era. Yes. My experience of doing professional software development on the Mac was very off-putting. Although based on an old version of BSD UNIX, its different enough fro...
by jahboater
Thu Nov 05, 2020 12:18 am
Forum: Beginners
Topic: Raspberry pi 400
Replies: 125
Views: 4622

Re: Raspberry pi 400

And it is a chiclet keyboard, which is inferior to mechanical key switches health-wise. Whereas so many engineers I know are using mechanical keyboards these days, it seems UK engineers are living in a bubble... The debate over their merits is over-- mechanical has won, chiclet has lost. I agree. I...
by jahboater
Thu Nov 05, 2020 12:07 am
Forum: General discussion
Topic: Reason for Pi crashing? [SOLVED]
Replies: 19
Views: 754

Re: Reason for Pi crashing?

That's interesting, I don't think I have a stable OC either, the stress benchmarks I've done only last an hour. The articles and Forums I read said the slight OC wouldn't cause problems are keep stability. The thing is, a slight overclock wont give you any noticeable performance benefit ... So its ...
by jahboater
Wed Nov 04, 2020 5:03 pm
Forum: General discussion
Topic: Reason for Pi crashing? [SOLVED]
Replies: 19
Views: 754

Re: Reason for Pi crashing?

I agree pretty much across the board with the previous poster. Most probably a power supply problem, or possibly a clock problem. +1 I would also check for interest: vcgencmd get_throttled it should return 0x0 An inadequate PSU could cause throttling, indicating a problem. My guess is overheating. ...
by jahboater
Wed Nov 04, 2020 4:38 pm
Forum: Python
Topic: Python getting ever more popular
Replies: 15
Views: 703

Python getting ever more popular

I see Python has finally overtaken Java and moved into 2nd place in the TIOBE popularity index!

Code: Select all

1	C	16.21%	+0.17%
2	Python	12.12%	+2.27%
3	Java	11.68%	-4.57%
4	C++	7.60%	+1.99%
Java is dropping like a stone.

Ref:
https://www.tiobe.com/tiobe-index//
by jahboater
Wed Nov 04, 2020 3:52 pm
Forum: Arch
Topic: No such file or directory
Replies: 2
Views: 241

Re: No such file or directory

That path has spaces in it - so the shell and chown think it is several separate arguments.
You can see for each error message how it has split up the path.
Try quotes:

Code: Select all

chown pi '/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Cache/PhotoTranscoder'
by jahboater
Tue Nov 03, 2020 6:53 pm
Forum: Raspberry Pi 400
Topic: The Raspberry Pi 400 thread!
Replies: 933
Views: 42495

Re: The Raspberry Pi 400 thread!

Do I see a proper push push SD card slot back again?
by jahboater
Tue Nov 03, 2020 6:29 pm
Forum: Raspberry Pi 400
Topic: The Raspberry Pi 400 thread!
Replies: 933
Views: 42495

Re: The Raspberry Pi 400 thread!

I am on the fence if I should get this or not, the stupid tiny hdmi still is almost a dealbreaker and I guess this is a wish, but is there no possibility of it getting sized hdmi ports ? The kit comes with a micro HDMI to HDMI cable. Or you can buy one for $3 Whats the problem? Indeed. I really don...
by jahboater
Tue Nov 03, 2020 6:21 pm
Forum: Raspberry Pi 400
Topic: The Raspberry Pi 400 thread!
Replies: 933
Views: 42495

Re: The Raspberry Pi 400 thread!

I am on the fence if I should get this or not, the stupid tiny hdmi still is almost a dealbreaker and I guess this is a wish, but is there no possibility of it getting sized hdmi ports ? The kit comes with a micro HDMI to HDMI cable. Or you can buy one separately for $3 What exactly is the problem?
by jahboater
Tue Nov 03, 2020 3:06 pm
Forum: General discussion
Topic: Close running python script using SSH
Replies: 6
Views: 253

Re: Close running python script using SSH

tpyo kingg wrote:
Tue Nov 03, 2020 2:58 pm
What method are you using to start the script and keep it running after the terminal has closed?
The OP said simply:

python wobbly.py

so I wonder if the program is actually still running.
by jahboater
Tue Nov 03, 2020 2:01 pm
Forum: General discussion
Topic: RPI 4 disappointment
Replies: 41
Views: 2357

Re: RPI 4 disappointment

GlowInTheDark wrote:
Tue Nov 03, 2020 12:57 pm
I find flaws in RPI products everyday (and I'm basically a fan), but I don't bother reporting them anymore.
Its the big numbers.

With 36 million? or more Pi's sold and relatively few problems reported, I would assume user error on my part first.

What are these flaw's you find "everyday"?
by jahboater
Tue Nov 03, 2020 1:48 pm
Forum: General discussion
Topic: Raspberry Pi 400 vs Raspberry Pi 4 speed tests
Replies: 12
Views: 848

Re: Raspberry Pi 400 vs Raspberry Pi 4 speed tests

AndrewPiEater wrote:
Tue Nov 03, 2020 12:27 pm
Thanks guys, 2 and 1800 appears to be working nice and stable.
Try also with over_voltage=1 (or leave as the default, the firmware may set the correct voltage anyway).
The C0 stepping has some fancy new power gating so things may be different.

I only suggested 2 as a ball park figure.
by jahboater
Tue Nov 03, 2020 1:45 pm
Forum: Raspberry Pi 400
Topic: The Raspberry Pi 400 thread!
Replies: 933
Views: 42495

Re: The Raspberry Pi 400 thread!

mrlinux2u wrote:
Tue Nov 03, 2020 1:25 pm
they're ideal for keeping out the dust and blocking off unused ports.
Wont they affect the cooling?
by jahboater
Tue Nov 03, 2020 10:39 am
Forum: General discussion
Topic: Raspberry Pi 400 vs Raspberry Pi 4 speed tests
Replies: 12
Views: 848

Re: Raspberry Pi 400 vs Raspberry Pi 4 speed tests

AndrewPiEater wrote:
Tue Nov 03, 2020 10:32 am
Thanks, I really want to run at the 1.8 speeds, will I need such a high overvoltage as Geerling Guy is using at 2.2?
I intend using the beta 64bit OS.
My Pi4 only needs over_voltage=2 to run at 1.8GHz.
by jahboater
Mon Nov 02, 2020 3:11 pm
Forum: General discussion
Topic: Is it recommended to turn off the Pi4 after use?
Replies: 10
Views: 443

Re: Is it recommended to turn off the Pi4 after use?

You will soon get bored with turning it on and off all the time :)
There should be very few writes to the SSD or SD if the system is idle.
I really would not worry about it.
All my Pi's in current use are left on 24/7 with never a problem.
by jahboater
Mon Nov 02, 2020 1:39 pm
Forum: Raspberry Pi 400
Topic: The Raspberry Pi 400 thread!
Replies: 933
Views: 42495

Re: The Raspberry Pi 400 thread!

kingosticks wrote:
Mon Nov 02, 2020 1:34 pm
You can make large power improvements with relatively little work by clock-gating wide internal data-buses. The gains entirely depend on the design.
I guess like Intel turning off the power to the unused portions of large registers.
by jahboater
Mon Nov 02, 2020 11:14 am
Forum: Raspberry Pi 400
Topic: The Raspberry Pi 400 thread!
Replies: 933
Views: 42495

Re: The Raspberry Pi 400 thread!

thatchunkylad198966 wrote:
Mon Nov 02, 2020 11:06 am
Sure, so that goes back to my original question though. an RPI4 with a heatsink should be able to handle 1.8ghz without a worry.
Why not just try it?
It costs nothing and will not hurt the Pi.
You will likely need over_voltage=2 for 1.8GHz
by jahboater
Mon Nov 02, 2020 11:02 am
Forum: Raspberry Pi 400
Topic: The Raspberry Pi 400 thread!
Replies: 933
Views: 42495

Re: The Raspberry Pi 400 thread!

As per the article, the Pi400 defaults to 1800. You can overclock it. See the Toms Hardware review. They overclocked it to 2.2GHz and remarkably it remained cool, with only a modest temperature rise compared to the stock speed. It seems like the built-in heatsink is very effective. Looking forward ...
by jahboater
Mon Nov 02, 2020 9:21 am
Forum: Beginners
Topic: *.sh file globally executable and more...
Replies: 32
Views: 959

Re: dir to put a *.sh file to make it globally exectuable

I would put it in /usr/local/bin but you will no doubt get various answers. Please see the standard: https://en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard You may simply copy the file in or use the "install" command, something like: install -C -o bin -g bin hello.sh /usr/local/bin Note that /u...
by jahboater
Sun Nov 01, 2020 11:20 am
Forum: Gentoo
Topic: Updated 64-bit Gentoo Image for RPi3 Released (now also for RPi3B+ and RPi4B)
Replies: 551
Views: 167065

Re: Updated 64-bit Gentoo Image for RPi3 Released (now also for RPi3B+ and RPi4B)

joan wrote:
Sun Nov 01, 2020 10:09 am
You have been unfailingly courteous and kind.
+1
And obviously a truly brilliant engineer.

Your new employer is very lucky.

Best wishes for the future Sakaki.

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