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by jamesh
Thu Apr 26, 2018 1:36 pm
Forum: Troubleshooting
Topic: Wifi connection unstable
Replies: 38
Views: 4573

Re: Wifi connection unstable

:oops: It does help to have the meter the right way around.... WHEN I do that, I see 4.83 volts and 0.55 amps. This still does not explain why my wifi kept disconnecting with a 2A power supply. Perhaps it is just a dodgy PSU. Maybe I will stop buying the PiHut LA-520W Thanks for listening! Brian I ...
by jamesh
Thu Apr 26, 2018 12:51 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 228
Views: 8835

Re: Raspberry Pi 3 B+ lockups

So then the logical next question is, what do we do if we want full usability on our defective Pi? Return it to vendor as defective, paying shipping costs both ways, and hope the new one doesn't have the same issues? Mali it to Pi HQ and they will mail back a known good one? Suffer in silence and b...
by jamesh
Thu Apr 26, 2018 12:43 pm
Forum: General discussion
Topic: Announcements
Replies: 23
Views: 14357

3B+ China and Malaysia Documents of Compliance

3B+ China and Malaysia Documents of Compliance These docs have now been released to Github and will appear on the website within the hour. https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/conformity.md https://www.raspberrypi.org/documentation/hardware/raspberrypi/confor...
by jamesh
Thu Apr 26, 2018 12:01 pm
Forum: Raspbian
Topic: Stretch wifi woes
Replies: 1
Views: 61

Re: Stretch wifi woes

by jamesh
Thu Apr 26, 2018 11:19 am
Forum: Troubleshooting
Topic: HDMI > DVI
Replies: 8
Views: 177

Re: HDMI > DVI

I'm at a loss, DVI and HDMI signals are the same, so an adaptor is a simply pass though.

Have you tried this particular monitors DVI input in another way, just to check it actually works? And I'm guessing, but I presume you have set the monitor to use the correct DVI input?
by jamesh
Thu Apr 26, 2018 10:31 am
Forum: Troubleshooting
Topic: HDMI > DVI
Replies: 8
Views: 177

Re: HDMI > DVI

Clearly the Pi is talking to the monitor, and has correctly chosen 1080p60, but why it doesn't actually appear on the monitor is odd. You could try boosting the HDMI signal - maybe its dropping too much. https://www.raspberrypi.org/documentation/configuration/config-txt/video.md See config_hdmi_boost
by jamesh
Wed Apr 25, 2018 1:26 pm
Forum: Troubleshooting
Topic: High CPU usage when booting from USB
Replies: 4
Views: 127

Re: High CPU usage when booting from USB

The issue is resolved when I boot from the SD card instead. The filesystem on the USB is unchanged, but simply booting from SD instead of USB solves the problem. Something about booting from USB is triggering a lot of interrupt requests. When you boot from SD card do you still have the USB drive at...
by jamesh
Wed Apr 25, 2018 1:20 pm
Forum: Troubleshooting
Topic: Wifi connection unstable
Replies: 38
Views: 4573

Re: Wifi connection unstable

I think I have the solution, but it is weird. I noticed the lightning bolt on a reboot, and realised that I was using a 2A power supply for a 3b. I also have an HDMI/VGA adapter, and I'm not sure which end it draws power from. I replaced it with a 2.5A power supply and the Pi has not disconnected f...
by jamesh
Wed Apr 25, 2018 10:24 am
Forum: Advanced users
Topic: Recover from corrupted heap
Replies: 4
Views: 168

Re: Recover from corrupted heap

When playing corrupted H264 videos (transferring to an FTP with Filezilla in ASCII mode, and then to the pi in Binary mode) with the OMXPlayer in a loop, the GPU memory heap becomes corrupted: "sudo vcdbg reloc" will report "heap corruption detected". All omxplayer/omxplayer.bin processes have been...
by jamesh
Wed Apr 25, 2018 9:23 am
Forum: General discussion
Topic: Industrial Reliability for 24/7 Use
Replies: 34
Views: 1078

Re: Industrial Reliability for 24/7 Use

Going in circles. If you want to use the Pi industrially, then go ahead. It's a device that has had 5 years worth of development and debugging on the PCB, plus endless years of work on the Linux software stack. Or, you can design your own device, or buy one of the alternatives. Being on the receivin...
by jamesh
Wed Apr 25, 2018 8:43 am
Forum: Networking and servers
Topic: Can Rpi Runs 24/7 as a server for my point of sale
Replies: 7
Views: 13254

Re: Can Rpi Runs 24/7 as a server for my point of sale

Do you realise you are posting on a 5 year old thread?
by jamesh
Wed Apr 25, 2018 8:38 am
Forum: Raspbian
Topic: Valgrind ARMv6 (working)
Replies: 28
Views: 13635

Re: Valgrind ARMv6 (working)

No, it wasn't until Valgrind 3.13.0 (June 2017) that Linux ARM was well supported. Building from source gets you a totally different beast. I'm using an up to date Stretch and tried Valgrind many times over several years. Finally I have one that works. It's quite easy to build: download, bunzip2, u...
by jamesh
Tue Apr 24, 2018 4:52 pm
Forum: Beginners
Topic: SD card error
Replies: 1
Views: 75

Re: SD card error

In when you put it in the Windows machine you said yes to any of the format dialogs that come up, then yes, your card is reformatted.

BUT, its really easy to get it back up and running.

https://www.raspberrypi.org/documentati ... /README.md
by jamesh
Tue Apr 24, 2018 4:47 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 228
Views: 8835

Re: Raspberry Pi 3 B+ lockups

Hi, I've got the same problem here. I've got LibreElec on the RPI3B+ and it freeze after some minutes. This is not random at all. Adding arm_freq=1200 seems to fix this freezes for me. If you want some details about the board like serial number or something else, I can provide it. Hope this can hel...
by jamesh
Tue Apr 24, 2018 12:52 pm
Forum: General discussion
Topic: Industrial Reliability for 24/7 Use
Replies: 34
Views: 1078

Re: Industrial Reliability for 24/7 Use

All valid points, but with at most 10 HW issues (most on very early models, and all now fixed, apart form being able to short GPIO pins - cannot change that now) in the entire product range over 18M sales, the current Pi 3B+ is pretty good. I doubt there are any issues on the PCB now that are likely...
by jamesh
Tue Apr 24, 2018 12:41 pm
Forum: General discussion
Topic: Adobe Photoshop on Pi 3
Replies: 5
Views: 281

Re: Adobe Photoshop on Pi 3

Try an application called GIMP which is a Linux version of Photoshop, and equally a PITA to use.

sudo apt install gimp
by jamesh
Tue Apr 24, 2018 12:40 pm
Forum: Troubleshooting
Topic: Wifi connection unstable
Replies: 38
Views: 4573

Re: Wifi connection unstable

Oddly, my previous issue with the wifi has completely disappeared since the first of the month. I refreshed the 3B with a new Stretch image, and then let it sit on my desk doing absolutely nothing for about a week. I'd occasionally SSH into it to see if it was up and it never failed to respond. I s...
by jamesh
Tue Apr 24, 2018 12:38 pm
Forum: Troubleshooting
Topic: Wifi connection unstable
Replies: 38
Views: 4573

Re: Wifi connection unstable

Just to add another voice to this problem. My RPi worked well until the latest stretch version was loaded this morning and I now have exactly the same problem (wifi turning on/off intermittently). Having then gone through all of the proposed solutions I have been forced to resort to a wired system....
by jamesh
Tue Apr 24, 2018 12:35 pm
Forum: General discussion
Topic: Are Raspberry Pi and other microcontrollers scalable for commercial projects?
Replies: 13
Views: 416

Re: Are Raspberry Pi and other microcontrollers scalable for commercial projects?

Now it makes sense what I was missing. My question would be if there are any companies that are using Raspberry Pi, Arduino etc. with simple sensors for a commercial use? E I am sure there are a huge number of people doing exactly that. However, most commercial endeavours never mention what they ar...
by jamesh
Tue Apr 24, 2018 12:34 pm
Forum: General discussion
Topic: Conditional config.txt
Replies: 17
Views: 402

Re: Conditional config.txt

(There's no point having great features in a great product if they are not documented. If no-one knows they are there, they may as well not be there.) I agree entirely, which is why, whenever I see something missing, or something new and interesting that would benefit users, I try to ensure it gets...
by jamesh
Tue Apr 24, 2018 11:43 am
Forum: General discussion
Topic: Announcements
Replies: 23
Views: 14357

Camera board schematics released

We have just released the schematics for the v2 Camera Board.

https://www.raspberrypi.org/documentati ... a2_2p1.pdf
by jamesh
Tue Apr 24, 2018 11:40 am
Forum: General discussion
Topic: Conditional config.txt
Replies: 17
Views: 402

Re: Conditional config.txt

I've already, I think, done most of the work of incorporating the ELinux stuff to our docs. If there is anything missing, let me know via github. I think you're right (and it's a good job, that's been well done), but that won't stop me looking for missing pieces. I'm sure there are bits missing - s...
by jamesh
Tue Apr 24, 2018 10:38 am
Forum: General discussion
Topic: Conditional config.txt
Replies: 17
Views: 402

Re: Conditional config.txt

I've added a github issue: https://github.com/raspberrypi/documentation/issues/892 JamesH will love you for doing that ;) It's an addendum to one I opened. I'd like every possible external option (not the hidden secret squirrel parms) to be documented in glorious detail so we can get away from poin...
by jamesh
Tue Apr 24, 2018 10:36 am
Forum: General discussion
Topic: Conditional config.txt
Replies: 17
Views: 402

Re: Conditional config.txt

6by9 wrote:
Tue Apr 24, 2018 10:05 am
procount wrote:
Tue Apr 24, 2018 9:59 am
I've added a github issue: https://github.com/raspberrypi/documentation/issues/892
JamesH will love you for doing that ;)
Yippeeee!!!

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