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by jdunson
Thu Apr 09, 2015 8:20 pm
Forum: Beginners
Topic: USB to HDMI
Replies: 8
Views: 7046

Re: USB to HDMI

The quick answer is that unless your requirements are extremely low, what you are asking will not work with just a single Pi. All current Raspberry Pi are limited at heart to a single USB 2 connection out of the CPU; nominally 480 Mbits/sec or 60 MB/sec. This single interface handles any and all Eth...
by jdunson
Thu Apr 02, 2015 6:32 pm
Forum: General discussion
Topic: Maximum image number with raspistill?
Replies: 19
Views: 2917

Re: Maximum image number with raspistill?

Hi Matt, ... So your file name eg 123456.jpg, would be classed as an 8.3 mixed case name and will create two entries for each file therefore halving the number of files per folder. The ghosts of DOS long past strikes again. Some variant of the above seems likely. You are using FAT32, which has a fi...
by jdunson
Fri Mar 27, 2015 5:25 pm
Forum: General discussion
Topic: Maximum image number with raspistill?
Replies: 19
Views: 2917

Re: Maximum image number with raspistill?

It sounds like it might be closer to a file system limitation. It looks like you're mounting an external flash drive; is it possible that said drive is using an older file system with a 32k limit on the number of links per inode, files per directory, etc.? You mentioned that you had a variant that t...
by jdunson
Wed Mar 04, 2015 5:01 pm
Forum: General discussion
Topic: Raspberrypi performance issue
Replies: 22
Views: 5017

Re: Raspberrypi performance issue

As several others have noted, Flash is a dead end. You will eventually need to find a new way of doing things. However, there are some things you could consider in the short run: * In places like the US and UK, the newer Pi B Model 2 is available; it has 1024M (1G) RAM and four cores, for the same c...
by jdunson
Tue Mar 03, 2015 6:32 pm
Forum: Graphics programming
Topic: Plans to support Vulkan?
Replies: 10
Views: 8199

Re: Plans to support Vulkan?

I was wondering this as well. It looks like Vulkan should run easily on anything that supports OpenGL ES 3.1, and the Pi only does 2.0 IIRC. But there's a sliver of hope from a Broadcom logo on the bottom of the Vulkan page . Anyone knowledgeable want to comment on the odds that Broadcom or the Foun...
by jdunson
Tue Mar 03, 2015 6:12 pm
Forum: General discussion
Topic: RCA Video Quality
Replies: 17
Views: 2141

Re: RCA Video Quality

I've heard the video quality with the RCA setup isn't very good, but don't have any frame of reference for how bad it will be. This does depend somewhat on which video standard you use (NTSC or PAL). Being from the US, I know NTSC; PAL should *probably* be a smidge better with good hardware. In gen...
by jdunson
Tue Feb 24, 2015 8:30 pm
Forum: General discussion
Topic: How much does actually Pi 2 cost?
Replies: 33
Views: 6546

Re: How much does actually Pi 2 cost?

One of the more interesting clues recently is the https://www.youtube.com/watch?v=L991wyOHTJ4 Raspberry Pi Guy interview with Eben Upton. Starting around 5:48, they talk about the Pi 2 A; Eben specifically says that they could make a list $25 Pi 2 A w/ 512 MB RAM right now, but they really want to k...
by jdunson
Tue Feb 24, 2015 7:03 pm
Forum: General discussion
Topic: The Raspberry Pi 2 Q&A thread
Replies: 442
Views: 107677

Re: The Raspberry Pi 2 Q&A thread

Yes sir. You may need to download the full ISO again. Because I tried using an existing sd card and apt-get update/upgrade raspi-update and the GUI is the same. But a new download and full install gave me a new GUI and youtube worked. I'm not sure this was your problem, since I'm not tested it in b...
by jdunson
Fri Feb 20, 2015 11:18 pm
Forum: Advanced users
Topic: STICKY: Manual updating NOOBS Recovery Partition?
Replies: 7
Views: 25880

Re: Manual upating NOOBS Recovery Partition?

Just in case anyone else is looking for this info, I have just gotten it to work. Inspired largely by: http://thepihut.com/blogs/raspberry-pi-tutorials/16982376-updating-raspian-on-your-microsd-for-the-raspberry-pi-2 but which is missing a few pieces of info for certain situations. You will need ano...
by jdunson
Thu Dec 18, 2014 8:53 pm
Forum: Raspbian
Topic: Run startup script only if no HDMI?
Replies: 4
Views: 1609

Run startup script only if no HDMI?

What I would like to do is set up Raspbian so that it does the following: * If a HDMI monitor (of whatever size or type) is plugged in, boot completely normally. * If no HDMI monitor is plugged in, boot normally at first, but instead of simply waiting for a user to log in, run a specific script. The...

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