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by Gavinmc42
Sun Aug 11, 2019 1:12 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 807
Views: 77378

Re: Raspberry Pi 4 Thread - general discussion

Net booting in a month or so USB boot after that.
That's in the blog interview video
by Gavinmc42
Sun Aug 11, 2019 12:57 am
Forum: Raspbian
Topic: RPi 4 Raspbian Buster desktop resolution
Replies: 3
Views: 173

Re: RPi 4 Raspbian desktop resolution

Does that monitor have a DVI input?
They just work.
by Gavinmc42
Sun Aug 11, 2019 12:52 am
Forum: OpenGLES
Topic: RPi 4 OpenGL ES 3.0 ShaderToy to download (100+ examples)
Replies: 31
Views: 2832

Re: RPi 4 OpenGL ES 3.0 ShaderToy to download (100+ examples)

In OpenGL polygons with four or more vertices have to be decomposed into triangles first Yep that was in one of Eric's Anholt's first posts, breaking up quads into triangles. It might be an OpenGL driver but it is running on OpenGLES 3.2 hardware. GeeXLab has some more shader stuff and some debug u...
by Gavinmc42
Sun Aug 11, 2019 12:23 am
Forum: OpenVG
Topic: Recommendation for an alternative to OpenVG for RP4
Replies: 14
Views: 1000

Re: Recommendation for an alternative to OpenVG for RP4

Nice find.
Looks like OpenGL and GLES so it should run on all Pi's.
Can that be used without X11?

Even old stuff can still be relevant for OpenVG as it's old too ;)

After seeing what can be done with shader code on Pi4 perhaps OpenVG done by shaders?
Crazy or possible?
by Gavinmc42
Sat Aug 10, 2019 10:34 am
Forum: Raspbian
Topic: FreeCAD on PI4 and Raspbian Buster.
Replies: 49
Views: 2895

Re: FreeCAD on PI4 and Raspbian Buster.

I am compiling and get these message, tried 3 versions of FreeCAD even going back to 16. QT is too new? -- Found unsuitable Qt version "5.11.3" from /usr/bin/qmake Qt QTOPENGL library not found. Qt QTSVG library not found. Qt QTUITOOLS library not found. Qt QTWEBKIT library not found. Qt QTGUI libra...
by Gavinmc42
Sat Aug 10, 2019 8:09 am
Forum: Beginners
Topic: Slow web browser
Replies: 38
Views: 835

Re: Slow web browser

Most of my Eyecams were used ones traded in at EBGames years ago. Got a bag of 5 for $10 5 years ago, might be hard to get these days? Secondhand shops that have game consoles etc, good for $5 monitors too. fswebcam or cheese are good for testing webcams. Depends on you budget, a Pi camera can be ne...
by Gavinmc42
Sat Aug 10, 2019 4:24 am
Forum: General discussion
Topic: Using PiServer with Pi 4
Replies: 5
Views: 270

Re: Using PiServer with Pi 4

If you want to save time it might be worth getting a few 3B+ to do your experiments. They do usb and pxe boot and since time is (often) money in business... Tim has a good point, grab a 3B+ for testing. Just be aware the netboot is in ROM and the latest blog video says there can be issues with some...
by Gavinmc42
Sat Aug 10, 2019 1:39 am
Forum: Advanced users
Topic: Weston/Mesa fails on v3d/rpi4 - works on vc4/rpi3
Replies: 3
Views: 249

Re: Weston/Mesa fails on v3d/rpi4 - works on vc4/rpi3

Does OpenGL work?
I noticed some examples in the mesa demos.

What's the best way to get Wayland up?
Start with Raspbian Lite?
by Gavinmc42
Sat Aug 10, 2019 1:04 am
Forum: Bare metal, Assembly language
Topic: Announce: RusPiRo - a kernel the Rust way ;)
Replies: 39
Views: 1310

Re: Announce: RusPiRo - a kernel the Rust way ;)

I am language agnostic these days, I will learn a new language if it works for what I want to do. It is mostly about punctuation anyway. Rust is in the top few on my list I made some time ago. Plus it compiles fast, I like fast compilers. It is language worth using and the more baremetal "kernels" w...
by Gavinmc42
Sat Aug 10, 2019 12:42 am
Forum: General discussion
Topic: A question about the Raspberry Pi 4 PCB layout
Replies: 21
Views: 986

Re: A question about the Raspberry Pi 4 PCB layout

Back on topic.
Are those tracks for the 8GB and 16GB DRAMs routed?
Eben said the SoC can address up to 16GB and there might 1mm spare.

If 8GB drams come out in a year or two will it be a simple change or a new PCB layout.
8GB/16GB 4B+'s, hmm PCB needs a mod for that resistor on the USB-C :D
by Gavinmc42
Sat Aug 10, 2019 12:37 am
Forum: OpenGLES
Topic: RPi 4 OpenGL ES 3.0 ShaderToy to download (100+ examples)
Replies: 31
Views: 2832

Re: RPi 4 OpenGL ES 3.0 ShaderToy to download (100+ examples)

Cool demo, lots of things seem to just work on Pi4's :D Good excuse for learning OpenGL Particle coding :D What gave you the impression that the VC4 didn't have shaders? In Tim's Readme it says only works on Pi4's. It looks like mesa is smart enough to figure that out and use the VC4 driver. Dug out...
by Gavinmc42
Sat Aug 10, 2019 12:12 am
Forum: Beginners
Topic: Slow web browser
Replies: 38
Views: 835

Re: Slow web browser

There is three main security cam programs , I use two of them. MotionEye OS and Pikrellcam. MotionEye OS can use USB webcams. I use old secondhand Sony Playstation 2 Eyecams. Can get them as low as $2. Good for bots and they have 4 microphones Pikrellcam uses the Pi camera which costs more but are 8...
by Gavinmc42
Fri Aug 09, 2019 10:51 am
Forum: Bare metal, Assembly language
Topic: Announce: RusPiRo - a kernel the Rust way ;)
Replies: 39
Views: 1310

Re: Announce: RusPiRo - Baremetal the Rust way ;)

NOSWORT, German for not working? :D One of the things that make OS's an operating SYSTEM is some sort of scripting language. Linux without shell script is just a kernel that does nothing apart from the low level stuff. Things like Ultibo are compiled applications that don't change. I went looking at...
by Gavinmc42
Fri Aug 09, 2019 8:55 am
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 189
Views: 8909

Re: Why moving to 64bit?

PiCore will run on 128MB card ;)
by Gavinmc42
Fri Aug 09, 2019 8:48 am
Forum: Bare metal, Assembly language
Topic: Announce: RusPiRo - a kernel the Rust way ;)
Replies: 39
Views: 1310

Re: Announce: RusPiRo - Baremetal the Rust way ;)

Is this on Pi's yet?
https://www.redox-os.org/

Write RusPiRo on Redox on Pi's?
by Gavinmc42
Fri Aug 09, 2019 7:59 am
Forum: Beginners
Topic: Slow web browser
Replies: 38
Views: 835

Re: Slow web browser

Plenty of uses for old Pi's. Python comes with SimpleHTTPServer, so you can turn it into webserver for all sorts of things. Lots of my old ones are security cameras. Web Browsing is one of the hardest thing for PC's and Pi's to do. Download 80 Pi magazines to see what you can use Pi's for. https://w...
by Gavinmc42
Fri Aug 09, 2019 7:49 am
Forum: General discussion
Topic: Using PiServer with Pi 4
Replies: 5
Views: 270

Re: Using PiServer with Pi 4

Today's blog, Gordon said about a month for net booting code to be ready to go in the boot EEPROM. But then there will be user found bugs to sort out. Allow for a month or two? But who knows, it is software, it might be quicker? A TCP/IP stack has to fit in that EEPROM with the other stuff needed to...
by Gavinmc42
Fri Aug 09, 2019 7:36 am
Forum: General discussion
Topic: A question about the Raspberry Pi 4 PCB layout
Replies: 21
Views: 986

Re: A question about the Raspberry Pi 4 PCB layout

Blog - address 16GB ram :D Someone just has to make them and at a really low price. 4B+ will have 8 and 16GB options? Was there room for those two address line tracks? That spare 1mm might be handy. Next couple months will sort out the software, net booting etc And good explanation of the boot EEPRO...
by Gavinmc42
Fri Aug 09, 2019 3:11 am
Forum: Arch
Topic: Arch Linux ARM on Raspberry Pi 4
Replies: 33
Views: 5271

Re: Arch Linux ARM on Raspberry Pi 4

Whatever version is being used in Raspbian Buster, better stick to that or later.
Backporting sounds like too much work.
by Gavinmc42
Fri Aug 09, 2019 3:06 am
Forum: OpenVG
Topic: Recommendation for an alternative to OpenVG for RP4
Replies: 14
Views: 1000

Re: Recommendation for an alternative to OpenVG for RP4

Yep I had run into Shiva and Monk but with Ultibo and OpenVG I had no need for them. But I have no idea how Ultibo and AJStarks do that OpenVG magic either. Now how do I do OpenVG on a Pi4? Without a VC6 manual I cannot check to see if the VG primitives still exist? Control codes ID 41, 42. I'm pret...
by Gavinmc42
Fri Aug 09, 2019 2:39 am
Forum: OpenGLES
Topic: RPi 4 OpenGL ES 3.0 ShaderToy to download (100+ examples)
Replies: 31
Views: 2832

Re: RPi 4 OpenGL ES 3.0 ShaderToy to download (100+ examples)

I saw this time lapse on the blog and the clouds over the Finnish Lake reminded me of the clouds2D shader. https://www.raspberrypi.org/blog/rather-lovely-raspberry-pi-time-lapses/ These moving sand paintings were all the rage decades ago, got one somewhere. https://www.bing.com/images/search?q=sand+...
by Gavinmc42
Fri Aug 09, 2019 2:17 am
Forum: Raspbian
Topic: VC4 and Mesa Drivers Update Plan
Replies: 44
Views: 11114

Re: VC4 and Mesa Drivers Update Plan

Why do you think it's the graphics stack leaking? Rather than Python, or something else on the system? I gave up on Python with PyGame about 4-5 years ago. And ditto for Raspbian Linux 4 years ago. Just too hard to find out why the memory was filling up and crashing. I only have one old model A, no...
by Gavinmc42
Fri Aug 09, 2019 1:55 am
Forum: Bare metal, Assembly language
Topic: Announce: RusPiRo - a kernel the Rust way ;)
Replies: 39
Views: 1310

Re: Announce: RusPiRo - Baremetal the Rust way ;)

I think we need something better than the term baremetal. Embedded seems a bit old considering what can be done now on Pi's. There is a couple of interesting newer langauges that might be interesting to use. D, Rust, Go. Pony I have compiled on Pi's and this week V got an editor that might port. For...
by Gavinmc42
Thu Aug 08, 2019 11:44 am
Forum: Raspbian
Topic: RPi4 support to boot from USB
Replies: 32
Views: 3012

Re: RPi4 support to boot from USB

I have no problems with waiting for PXE & USB boot in just the same way that I have no problems waiting for the supply chain to catch up with my desire for a RPi4B with 4GB. [Which the household finance director will frown at.] Hmm, sounds very familiar. I think I should put my spare change in a ja...
by Gavinmc42
Thu Aug 08, 2019 11:40 am
Forum: General discussion
Topic: A question about the Raspberry Pi 4 PCB layout
Replies: 21
Views: 986

Re: A question about the Raspberry Pi 4 PCB layout

The Pi is solid. Heat spreads by conduction, without the help of gravity. It's only after it reaches the air that convection starts to be important. Thanks you just explained the space Pi cases. PCB design is hard, it can get so you are thinking 3D parts in your head all the time. Hitting your head...

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