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by W. H. Heydt
Sun Aug 18, 2019 2:51 am
Forum: General discussion
Topic: I got a big issue and i need to fix it before next week
Replies: 24
Views: 1050

Re: I got a big issue and i need to fix it before next week

6. He looked at the comments and decided he had no hope of getting help here. I can understand multiple posts in different sections if folk do not know about the ‘new post’ or ‘unanswered posts’ selector. Only hope he either comes back or gets it sorted fir sake of his students... Had he said where...
by W. H. Heydt
Sat Aug 17, 2019 8:38 pm
Forum: General discussion
Topic: Lightweight word processor (alternative to LibreOffice Writer)?
Replies: 21
Views: 409

Re: Lightweight word processor (alternative to LibreOffice Writer)?

la la la I can't hear you. As a quick a dirty config editor it is lovely. As a programming editor loaded up with stuff (ick) just give me emacs. One of the first things I do on a new Raspbian image is to add "export EDITOR=/usr/bin/vi" to the end of /etc/profile. I use vi as a programming editor. T...
by W. H. Heydt
Sat Aug 17, 2019 7:32 pm
Forum: General discussion
Topic: Lightweight word processor (alternative to LibreOffice Writer)?
Replies: 21
Views: 409

Re: Lightweight word processor (alternative to LibreOffice Writer)?

bjtheone wrote:
Sat Aug 17, 2019 7:07 pm
...the doomed ship called vi.
For a "doomed ship" it seems to be doing pretty well.
by W. H. Heydt
Sat Aug 17, 2019 5:05 pm
Forum: Off topic discussion
Topic: Would be nice if we got a notification from "mods" and "staff" as to why our post(s) and thread(s) are being deleted.
Replies: 21
Views: 485

Re: Would be nice if we got a notification from "mods" and "staff" as to why our post(s) and thread(s) are being deleted

You seem to be under several misaprehensions about how these forums operate.. This quote is from a quite old thread but note these words... Some people seem to think that they have a right to 'complete freedom of speech' on a privately owned forum. My suggestion would be that forum members consider...
by W. H. Heydt
Sat Aug 17, 2019 4:56 pm
Forum: General discussion
Topic: Make backups of a live running Raspberry Pi?
Replies: 6
Views: 204

Re: Make backups of a live running Raspberry Pi?

Is it possible to make live backups of a running Raspberry Pi? As previous replies have accurately stated, Yes, it is possible . But you have to be reconciled to the fact that the result might be inconsistent, because the Operating System might have changed the content of the filesystem while the b...
by W. H. Heydt
Sat Aug 17, 2019 4:53 pm
Forum: General discussion
Topic: Lightweight word processor (alternative to LibreOffice Writer)?
Replies: 21
Views: 409

Re: Lightweight word processor (alternative to LibreOffice Writer)?

Yes, I use vim on a daily basis. But vim is a text editor. It doesn't have the features one normally looks for in a word processor. And before anyone asks: yes, I have experience with LaTeX too. While LaTeX makes scientific article writing a breeze, it's a total time sink if you want to produce a d...
by W. H. Heydt
Sat Aug 17, 2019 5:35 am
Forum: General discussion
Topic: Timeframe for USB C power board revision
Replies: 1
Views: 103

Re: Timeframe for USB C power board revision

The simplest power cable solution (if you don't want to use the RPF PSU), is to use an inexpensive cable. It's the fancy ones with built in chips that cause problems. I.e. Don't try to run your $35 Pi from your $60 Apple PSU. As for when such a change happens... Nobody outside of the RPT knows, and ...
by W. H. Heydt
Sat Aug 17, 2019 5:30 am
Forum: General discussion
Topic: Pi Zero W, VS 3B+, VS 4 for low CPU applications?
Replies: 24
Views: 659

Re: Pi Zero W, VS 3B+, VS 4 for low CPU applications?

Me personally, I've never been a fan of the GPIO connected displays. I usually have other devices connected that will cause a conflict. Plus I'm not all that fussy for small displays. I'd like to see some other options for DSI connected displays. 10 inch or bigger. Don't have to be touch screens, j...
by W. H. Heydt
Sat Aug 17, 2019 5:16 am
Forum: Beginners
Topic: Completely new to pi. Can I use a pi to play 4k movie files and as a retro gaming machine?
Replies: 1
Views: 56

Re: Completely new to pi. Can I use a pi to play 4k movie files and as a retro gaming machine?

Welcome to the forums. The newest Pi, the Pi4B, can handle 4Kp60. All Pis can handle retro gaming at various speeds, with the Pi4B being the fastest. If you are going to store large amounts of data, such as movies, then you probably want to put them on something other than an SD card, such as an SSD...
by W. H. Heydt
Sat Aug 17, 2019 5:05 am
Forum: General discussion
Topic: Positives of the Official Raspberry 4B Youtube video.
Replies: 14
Views: 427

Re: Positives of the Official Raspberry 4B Youtube video.

16 GB (128 Gb) LPDDR5 DRAM packages are likely to exist within the next year. End of 2020 at the latest. The Pi4B uses LPDDR4, so that package is irrelevant. There won't be any more RAM added to Pi 4 anyway. Pi 5 or Pi 6 could have higher capacity packages, and/or use LPDDR4X or LPDDR5. It's unclea...
by W. H. Heydt
Sat Aug 17, 2019 4:46 am
Forum: General discussion
Topic: I got a big issue and i need to fix it before next week
Replies: 24
Views: 1050

Re: I got a big issue and i need to fix it before next week

5. One of the incoming students dropped by, solved the issue in 5 minutes, so he let the student set up all 50 systems.
by W. H. Heydt
Sat Aug 17, 2019 4:43 am
Forum: General discussion
Topic: Positives of the Official Raspberry 4B Youtube video.
Replies: 14
Views: 427

Re: Positives of the Official Raspberry 4B Youtube video.

takyon wrote:
Sat Aug 17, 2019 4:07 am
16 GB (128 Gb) LPDDR5 DRAM packages are likely to exist within the next year. End of 2020 at the latest.
The Pi4B uses LPDDR4, so that package is irrelevant.
by W. H. Heydt
Sat Aug 17, 2019 3:51 am
Forum: General discussion
Topic: I got a big issue and i need to fix it before next week
Replies: 24
Views: 1050

Re: I got a big issue and i need to fix it before next week

Since there doesn't appear to be any response from the OP, some possibilities occur to me...
1. He solved his problem.
2. He hasn't figured out how to reply to a thread.
3. The troll surmise is correct.
by W. H. Heydt
Sat Aug 17, 2019 3:18 am
Forum: Troubleshooting
Topic: Raspberry Pi 3 red light after installing heat sink, not booting!
Replies: 5
Views: 172

Re: Raspberry Pi 3 red light after installing heat sink, not booting!

Which model of Pi 3 are you using? A Pi3B has to have an OTP bit set to boot from a USB device. A Pi3B+ doesn't.

In either case, do what RonR said. Try it with a new SD card with the OS on it.
by W. H. Heydt
Sat Aug 17, 2019 3:13 am
Forum: General discussion
Topic: Positives of the Official Raspberry 4B Youtube video.
Replies: 14
Views: 427

Re: Positives of the Official Raspberry 4B Youtube video.

I "worked" in the Outside Broadcast TV world, for many years... Back when light bulb jokes ("How many X does take to screw in/change a light bulb?") were current, a friend of mine who lived in Los Angeles got together with some of here friends who worked in the film industry. They sat down to figur...
by W. H. Heydt
Fri Aug 16, 2019 11:48 pm
Forum: General discussion
Topic: When can we expect USB boot for the Pi 4?
Replies: 56
Views: 1845

Re: When can we expect USB boot for the Pi 4?

I do! :D So do I...which is why my counsel on the issue is: patience. I'd much rather see it done right than done soon. I also consider the EEPROM system to have the advantage that, should people find problems (such as SATA bridges that don't play nice), there will be hope for fixes down the road. ...
by W. H. Heydt
Fri Aug 16, 2019 11:35 pm
Forum: General discussion
Topic: Are Speaker Magnets A Problem For Pi?
Replies: 17
Views: 507

Re: Are Speaker Magnets A Problem For Pi?

Similar to what drgeoff said but a very strong magnet could cause the inductor in the power supply circuitry to saturate. It'll cause the SMPS circuitry to brown out as it won't be able to supply any significant current. I doubt a speaker magnet will cause this to happen though. You usually need so...
by W. H. Heydt
Fri Aug 16, 2019 10:15 pm
Forum: General discussion
Topic: Are Speaker Magnets A Problem For Pi?
Replies: 17
Views: 507

Re: Are Speaker Magnets A Problem For Pi?

If you discover a problem, mount a sheet of steel between the speaker and the Pi. Magnetic fields are tricky to shield. A simple sheet will just cause the field to wrap around the sides. This is based on spending much money and engineering effort to try and shield CRT monitors from a large transfor...
by W. H. Heydt
Fri Aug 16, 2019 10:13 pm
Forum: General discussion
Topic: When can we expect USB boot for the Pi 4?
Replies: 56
Views: 1845

Re: When can we expect USB boot for the Pi 4?

Don't nobody understand that the NEW USB bootloader is conceptually much more complex than the extremely simple, boot from the first blockdevice you find minimalistic boot code built into the PI3+ which had only a few hundred bytes of code. I do! :D So do I...which is why my counsel on the issue is...
by W. H. Heydt
Fri Aug 16, 2019 10:08 pm
Forum: General discussion
Topic: How to change undervoltage icons
Replies: 12
Views: 414

Re: How to change undervoltage icons

perhaps the case needs a redesign, with some vent slots, it now isolating too well, for some use cases. Or, as with the Pi0 case, an alternate top with vent holes or perhaps vent holes combined with a small fan mount points. (Yeah, I know about the fan "shim". Problem with that on the two Pi4B2 boa...
by W. H. Heydt
Fri Aug 16, 2019 8:17 pm
Forum: General discussion
Topic: When can we expect USB boot for the Pi 4?
Replies: 56
Views: 1845

Re: When can we expect USB boot for the Pi 4?

I started a "war" yay me. :lol: :oops: Concepts of simplicity and one less point of failure (however likely or not) are lost on some. For us conformity comes into play. All of the Pis we have in the wild that are USB only. Moving to a Pi4 going forward would be the default option, but not if it mea...
by W. H. Heydt
Fri Aug 16, 2019 8:10 pm
Forum: Official Foundation Display
Topic: Updated screen case for Pi4
Replies: 2
Views: 89

Re: Updated screen case for Pi4

There is no official case for the RPF 7" display. That said, I think I've seen a display+Pi case for use with the Pi4B. Check the web sites that sell such cases for earlier Pis.
by W. H. Heydt
Fri Aug 16, 2019 8:07 pm
Forum: General discussion
Topic: Are Speaker Magnets A Problem For Pi?
Replies: 17
Views: 507

Re: Are Speaker Magnets A Problem For Pi?

If you discover a problem, mount a sheet of steel between the speaker and the Pi.
by W. H. Heydt
Fri Aug 16, 2019 8:03 pm
Forum: General discussion
Topic: When can we expect USB boot for the Pi 4?
Replies: 56
Views: 1845

Re: When can we expect USB boot for the Pi 4?

If it's so important to you that your SD card socket remain empty, then by all means wait for updated EEPROM code. My guess is that very few see any distinction or care and would rather get on with running Raspbian from a much faster/larger USB device. If people didn't care about the distinction, t...
by W. H. Heydt
Fri Aug 16, 2019 7:48 pm
Forum: General discussion
Topic: When can we expect USB boot for the Pi 4?
Replies: 56
Views: 1845

Re: When can we expect USB boot for the Pi 4?

Right now: Running Raspbian on USB Devices : Made Easy No complicated steps involved or additional tools required. Only if one is satisfied with a hybrid boot (and that has already be mentioned in this thread). If one actually wants "USB boot", then waiting is in order. You're getting overly hung u...

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