Go to advanced search

by jamesh
Sun May 20, 2018 5:36 am
Forum: Java
Topic: Am I in the right place to get help with JMRI and Pi4J?
Replies: 2
Views: 101

Re: Am I in the right place to get help with JMRI and Pi4J?

Unlocked on request.
by jamesh
Sat May 19, 2018 4:38 pm
Forum: Raspbian
Topic: How can I create second FB interface /dev/fb1
Replies: 4
Views: 183

Re: How can I create second FB interface /dev/fb1

You could adjust the browser efforts to display video so that OMXplayer always plays on a layer above it. Or, but not sure (and don't have OMXplayer handy) if you can specify the layer it appears on.
by jamesh
Sat May 19, 2018 4:33 pm
Forum: Camera board
Topic: Raspistill vs Raspivid quality issue
Replies: 3
Views: 80

Re: Raspistill vs Raspivid quality issue

Compression artifacts? You could try increasing the bit rate.
by jamesh
Sat May 19, 2018 6:58 am
Forum: Java
Topic: Am I in the right place to get help with JMRI and Pi4J?
Replies: 2
Views: 101

Re: Am I in the right place to get help with JMRI and Pi4J?

Duplicate so locking.
by jamesh
Fri May 18, 2018 3:15 pm
Forum: General programming discussion
Topic: Python VS Java
Replies: 4
Views: 2336

Re: Python VS Java

Did you read the date of the post you replied to? 5 years old! I doubt anyone in that thread is still here to read it.

Locking as unnecessary thread necro - second one today.
by jamesh
Fri May 18, 2018 3:12 pm
Forum: General discussion
Topic: omxplayer download & install
Replies: 16
Views: 134762

Re: omxplayer download & install

Wow, incredible thread necro.

The downloads page is here, and contains the latest installs. I suspect that is what you need.

https://www.raspberrypi.org/downloads/
by jamesh
Fri May 18, 2018 2:47 pm
Forum: General discussion
Topic: Multiple framebuffer support - testers wanted
Replies: 0
Views: 95

Multiple framebuffer support - testers wanted

Hello all, I'm at the point of releasing a very beta version of the multi framebuffer support I have been looking in to. This provides for having 2 or more frame buffers (max 4), one for each display device attached. So for example, /dev/fb0 would be allocated to the HDMI, and /dev/fb1 would be allo...
by jamesh
Fri May 18, 2018 2:37 pm
Forum: Windows 10 for IoT
Topic: Running DOS Batch Files
Replies: 8
Views: 183

Re: Running DOS Batch Files

I don't get all these references to either "REPLACE" or "F***", since neither appear in the original posted batch file (*). What exactly ARE we talking about anyway? Also, REPLACE is an old-school DOS command (and presumably still present in WIN 10), not that that has any relevance to this either. ...
by jamesh
Fri May 18, 2018 1:53 pm
Forum: General discussion
Topic: Home-made videowall problems
Replies: 1
Views: 76

Re: Home-made videowall problems

There is no chance anyone will be able to help you, without more information. You probably need the person who built the video wall in the first place.

How do three TV's connect to the Pi? It only has one HDMI output....

What software are you using to do the display? Anything unusual?
by jamesh
Fri May 18, 2018 12:27 pm
Forum: Windows 10 for IoT
Topic: Running DOS Batch Files
Replies: 8
Views: 183

Re: Running DOS Batch Files

REPLACE is actually a program called FART : http://www.majorgeeks.com/files/details/fart.html So could be replaced by grep and sed I suspect. If that is majority of the work, then you could easily rewrite the batch file to run under Linux. I cannot comment on using it under Win10IoT, I know nothing.
by jamesh
Fri May 18, 2018 12:25 pm
Forum: General discussion
Topic: Open Source hardware?
Replies: 13
Views: 373

Re: Open Source hardware?

Ah, when I searched I didn't have the hyphen in open-source.

Looking at the page, I'm happy with it since there is a link to the actual board in question in the same sentence.
by jamesh
Fri May 18, 2018 10:38 am
Forum: Windows 10 for IoT
Topic: Running DOS Batch Files
Replies: 8
Views: 183

Re: Running DOS Batch Files

Looks like that script is calling a program called "process" which is probably the bit that is going to be difficult to replicate under Linux (rewriting the script in bash would probably be fairly easy). Have you got a Linux version of it? Or know what it does?
by jamesh
Fri May 18, 2018 10:20 am
Forum: General programming discussion
Topic: How do I protect my code?
Replies: 32
Views: 1826

Re: How do I protect my code?

The way we protect our camera hardware is with a crypto chip on the camera board. You could probably leverage something like that to make a crypto dongle that needs to be installed on the device, and without which the software will not run. But you are still susceptible to people reverse engineering...
by jamesh
Fri May 18, 2018 10:06 am
Forum: General discussion
Topic: Open Source hardware?
Replies: 13
Views: 373

Re: Open Source hardware?

I cannot find a reference to "open source breakout board" except on this thread. Can the OP point me in the direction of the misleading information?
by jamesh
Thu May 17, 2018 2:46 pm
Forum: General discussion
Topic: Announcements
Replies: 25
Views: 15113

3B+ Japanese Document of Compliance

3B+ Japanese Document of Compliance

This doc has now been released.

https://www.raspberrypi.org/documentati ... conformity.
by jamesh
Thu May 17, 2018 2:21 pm
Forum: Raspbian
Topic: Raspberry Pi power problems.
Replies: 7
Views: 315

Re: Raspberry Pi power problems.

1M cables are fine if they are of good quality with fat power wires. I have 1M cables with 23 AWG OFC power wires, as well as 21, 20 and even 19 AWG power wires that all deliver reliable power to a Pi3B(+) under heavy loads from a good PSU. Now if you are talking about the typical USB 2.0 cable wit...
by jamesh
Thu May 17, 2018 2:20 pm
Forum: Raspbian
Topic: Raspberry Pi power problems.
Replies: 7
Views: 315

Re: Raspberry Pi power problems.

I agree with the Foundation engineers that the firmware should not be modified to work around hardware problems which may compromise operation. The thing is, if one doesn't need any 5V out of the Pi, then it can be working perfectly with no risk of compromised operation even if the low-voltage warn...
by jamesh
Thu May 17, 2018 9:59 am
Forum: Raspbian
Topic: Under-voltage detected! (0x00050005) ... how to disable?
Replies: 70
Views: 6891

Re: Under-voltage detected! (0x00050005) ... how to disable?

News at 10. Person ignoring smoke alarm killed in fire. (never EVER turn off a smoke detector)

Had enough of this thread, my point is made. We are not changing anything, but others, since they have the source, are perfectly able to do so should they wish.
by jamesh
Thu May 17, 2018 9:55 am
Forum: Official Foundation Display
Topic: Official Touch Screen and Xorg
Replies: 54
Views: 32954

Re: Official Touch Screen and Xorg

John Westlake wrote:
Thu May 17, 2018 9:23 am
Brilliant - looking forward to trying...

When can we expect to see Beta release for testing / feedback?
Not sure, got to ensure there are no regressions elsewhere before any release. Couple of weeks maybe.
by jamesh
Thu May 17, 2018 9:19 am
Forum: Official Foundation Display
Topic: Official Touch Screen and Xorg
Replies: 54
Views: 32954

Re: Official Touch Screen and Xorg

A USB or SPI attached display could provide its own FB driver. The changes I have made means the foundation supplied LCD panel and the HDMI can now run on different framebuffers at the same time, which they were not able to do before. Also, DPI displays and I think composite (not tried either) - any...
by jamesh
Thu May 17, 2018 9:14 am
Forum: Raspbian
Topic: Under-voltage detected! (0x00050005) ... how to disable?
Replies: 70
Views: 6891

Re: Under-voltage detected! (0x00050005) ... how to disable?

solve the problem and the messages will disappear automatically. And we're going in circles again. It is kind of hard for a cyclic argument like this to end when two of the main players on the opposing side are mods. You can't just turn them off like you can with normal posters. ?? I think all the ...
by jamesh
Wed May 16, 2018 3:26 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 291
Views: 14220

Re: Raspberry Pi 3 B+ lockups

While it's definitely much better after the rpi-update, I've had another lockup last night, after ~130h uptime. I noticed a few "hickups" where the machine becomes completely unresponsive for up to 4 hours and then recovers. This still seems network related to me, and while it's better now, it's no...
by jamesh
Wed May 16, 2018 3:21 pm
Forum: Raspbian
Topic: Under-voltage detected! (0x00050005) ... how to disable?
Replies: 70
Views: 6891

Re: Under-voltage detected! (0x00050005) ... how to disable?

I disagree with your premise that a user is unable to do anything about this message. It's quite clear - sort out the power supply and the message will go away. Users do that all the time. I believe Alex is discussing use in a situation where the "user" is simply an observer, a member of the public...
by jamesh
Wed May 16, 2018 12:47 pm
Forum: General discussion
Topic: Announcements
Replies: 25
Views: 15113

3B+ Kenyan Document of Compliance

3B+ Kenyan Document of Compliance

This doc has now been released to Github and will appear on the website within the hour.

https://github.com/raspberrypi/document ... formity.md
https://www.raspberrypi.org/documentati ... formity.md
by jamesh
Wed May 16, 2018 12:26 pm
Forum: Troubleshooting
Topic: RPI B+ slow internet(30-40mbit) on gigabit
Replies: 4
Views: 97

Re: RPI B+ slow internet(30-40mbit) on gigabit

Should i try RMA( return the pi to vendor) ? i looked arround on the forums, found this thread (https://www.raspberrypi.org/forums/viewtopic.php?t=208512) i did try sudo apt-get install ethtool sudo ethtool -s eth0 speed 100 duplex full and with that on i got a wopping 50 Mbit/s. Good enough for a ...

Go to advanced search