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by rimrunner
Fri Sep 17, 2021 9:26 am
Forum: Android
Topic: [DEV] LineageOS 16.0 (Android 9) for Raspberry Pi 4 B
Replies: 250
Views: 106504

Re: [DEV] LineageOS 16.0 (Android 9) for Raspberry Pi 4 B

This build is discontinued and seriously outdated and you should use the latest LineageOS 18 builds unless you have some very specific reason to use this one (e.g. official 7" screen support). Please read the relevant FAQ section and follow the instructions provided there. I didn't mean I used...
by rimrunner
Thu Sep 16, 2021 11:44 am
Forum: Android
Topic: [DEV] LineageOS 16.0 (Android 9) for Raspberry Pi 4 B
Replies: 250
Views: 106504

Re: [DEV] LineageOS 16.0 (Android 9) for Raspberry Pi 4 B

Tried both RPi3 and RPi4 images of LineageOS without success. On RPi4 it gives no screen signal after rainbow screen. Loads a lot but signal never returns. On RPi3 it first booted directly to the configuration screen. After config.txt tweaking (based on this thread) it ended up loading for minutes b...
by rimrunner
Tue Sep 14, 2021 3:04 pm
Forum: Advanced users
Topic: Anbox on the Raspberry Pi 4
Replies: 12
Views: 5745

Re: Anbox on the Raspberry Pi 4

Failed to compile on RPi4, RPi OS 32-bit, kernel android options enabled, gcc 8.3.0, kernel 5.10.63-v7l+ Here's the compiler output at make stage: https://pastebin.com/raw/FSaAmvhb EDIT: Okay, because instructions didn't say that also anbox-modules should be installed, I hadn't done that. And becaus...
by rimrunner
Mon Jun 07, 2021 4:21 am
Forum: Beginners
Topic: The components of RPi board
Replies: 8
Views: 541

Re: The components of RPi board

Just out of curiosity and for learning some elementary stuff I'd like to know which are those largest components of the RPi4 board. Another metal square next to the CPU core is Wifi/Bluetooth device, I've been told. Then there are three larger black components between the CPU core and USB & Ethe...
by rimrunner
Thu Feb 25, 2021 2:36 pm
Forum: Beginners
Topic: The components of RPi board
Replies: 8
Views: 541

The components of RPi board

Is there available any image or chart naming each component of the Raspberry Pi's board? (small explanations of their workings would be welcome as well)

I recognize connectors and the processor but what about the rest?
by rimrunner
Fri Nov 13, 2020 8:13 pm
Forum: Linux Kernel
Topic: Mainline Kernel building -- problems and issues
Replies: 42
Views: 11494

Re: Mainline Kernel building -- problems and issues

@rimrunner Thanks for your analyze. Could you please provide more information about your setup: Which Raspberry Pi did you use? Raspberry Pi 4 model B, 4 GB Did you tried Linux 5.10-rcX=? Yes, one of the kernels I've tried is 5.10.0-rc2-next-20201109-v7l+ Which Kernel config did you use (multi_v7_d...
by rimrunner
Thu Nov 12, 2020 2:07 pm
Forum: Linux Kernel
Topic: Mainline Kernel building -- problems and issues
Replies: 42
Views: 11494

Re: Mainline Kernel building -- problems and issues

Trying linux-next (an unreleased kernel version distributed solely for testing purposes) with Raspberry Pi OS seems to work otherwise but it doesn't find nor use sound hardware. Even if I explicitly tell the system to load snd_bcm2835 module on the boot, it won't be taken into use (though it at leas...
by rimrunner
Thu Oct 08, 2020 2:22 pm
Forum: Bare metal, Assembly language
Topic: Using HVS (Hardware Video Scaler) sprites for drawing
Replies: 2
Views: 761

Using HVS (Hardware Video Scaler) sprites for drawing

I have got a picture that a better way than just to use framebuffer for drawing (without primary OS) is to use also HVS (Hardware Video Scaler) which is a component (controlled from the firmware code) which takes the framebuffer and sends it to the HDMI-encoder. This gives more possibilities for ren...
by rimrunner
Mon Sep 14, 2020 7:45 am
Forum: Off topic discussion
Topic: ARM sold to Nvidia
Replies: 100
Views: 13682

Re: ARM sold to Nvidia

I don't feel very good about this at the moment, some comments that I found: "It's one of the fundamental assumptions of the ARM business model that it can sell to everybody," he [Hermann Hauser] explained. "The one saving grace about Softbank was that it wasn't a chip company, and re...
by rimrunner
Wed Jul 22, 2020 12:58 pm
Forum: Troubleshooting
Topic: Using Samsung Printer Driver
Replies: 15
Views: 6826

Re: Using Samsung Printer Driver

3- if you have error in ld not finding libjpig85 you should compile it (Go to step 5) 5- git clone https://github.com/nu774/jbigkit.git 6- cd jbigkit then make then sudo make install jbigkit does not have "make install" option and therefore those instructions don't work. I could not figur...
by rimrunner
Thu Jun 25, 2020 8:52 pm
Forum: Linux Kernel
Topic: Mainline Kernel building -- problems and issues
Replies: 42
Views: 11494

Re: Mainline Kernel building -- problems and issues

What do you expect from linux-next in comparison from much stable stuff like linux-5.7.x or at least linux-5.8rc2? Do you have your screen connected via HDMI? Did you copied the kernel modules to the SD card? I expect to be able to test the linux-next. Nothing else. Yes, I have HDMI. Okay, it seems...
by rimrunner
Mon Jun 22, 2020 8:50 am
Forum: Linux Kernel
Topic: Mainline Kernel building -- problems and issues
Replies: 42
Views: 11494

Re: Mainline Kernel building -- problems and issues

I haven't got linux-next (the unreleased mainline kernel) working yet. It doesn't get past the initial colorful screen on the boot. I have a 32-bit Raspbian install on my RPi4 and I try get the linux-next kernel running on it. I have done compiling on RPi3 (because I'm busy using my RPi4). Here is w...
by rimrunner
Mon Jun 15, 2020 7:10 am
Forum: Linux Kernel
Topic: Mainline Kernel building -- problems and issues
Replies: 42
Views: 11494

Re: Mainline Kernel building -- problems and issues

swahren wrote:
Mon Jun 15, 2020 4:59 am
These overlays are not supported by the mainline kernel.
So, no overlays are needed at all to get Raspbian running?
by rimrunner
Sun Jun 14, 2020 10:30 pm
Forum: Linux Kernel
Topic: Mainline Kernel building -- problems and issues
Replies: 42
Views: 11494

Re: Mainline Kernel building -- problems and issues

I tried to use the tutorial of the first post on this thread for building a 32-bit linux-next for RPi4 but without cross-compiling (so I partly used the standard instructions to get through without any cross-compiling). I didn't have success, it gets stuck on the initial color screen. I'm trying to ...
by rimrunner
Sat Jun 13, 2020 8:21 pm
Forum: Bare metal, Assembly language
Topic: RPI3B+ I would like to make a game
Replies: 5
Views: 1238

Re: RPI3B+ I would like to make a game

Initializing and reading from the SD card is quite a complicated task. I'd suggest using a bare metal library first (like Circle) and looking how things are done, then you can decide to go the full assembly way or stay quite close to the metal but with a library. Even if I want just to draw some pr...
by rimrunner
Tue Jan 21, 2020 6:24 pm
Forum: Advanced users
Topic: Kernel downgrading with apt-get? (Raspbian)
Replies: 4
Views: 2567

Re: Kernel downgrading with apt-get? (Raspbian)

What version is in the book? It is likely that the interfaces haven't changed significantly so your current kernel is fine. 4.9. and I currently have 4.19 installed. If it has changed then you should learn the new method anyway. Well, my first step is to get something working and I'd like to be sur...
by rimrunner
Tue Jan 21, 2020 4:19 pm
Forum: Advanced users
Topic: Kernel downgrading with apt-get? (Raspbian)
Replies: 4
Views: 2567

Kernel downgrading with apt-get? (Raspbian)

I try to downgrade my kernel to the version which my driver writing study book uses. Is it possible simply to get earlier kernel version running by installing its image and header package with apt-get? I found the right LTS-kernel version from repositories but merely installing the kernel image &...
by rimrunner
Tue Dec 24, 2019 10:40 am
Forum: Troubleshooting
Topic: Pi 4, Raspbian Buster and Wine 4.0
Replies: 21
Views: 46854

Re: Pi 4, Raspbian Buster and Wine 4.0

So how handy that solution (Novaspirit's for running win32 programs, using RPI4) actually is? Can I use it as a part of my otherwise normal operating system smoothly if I want to use just one or two Windows programs? Or would it rather need an SD card of its own?
by rimrunner
Mon Sep 30, 2019 7:14 pm
Forum: General discussion
Topic: Raspberry Pi 4 as a primary desktop computer?
Replies: 54
Views: 13250

Raspberry Pi 4 as a primary desktop computer?

I wonder how it would be like to use Raspberry Pi 4 (with 4 GB ram) as a primary desktop computer at home. RPI4 seems to have enough CPU power and ram to run YouTube and rest of the typical websurfing smoothly, I presume (smoothly at least for a person like me who have uses a 13 year old desktop com...
by rimrunner
Sat Aug 24, 2019 12:19 pm
Forum: Raspberry Pi OS
Topic: Raspberry driver writing practice project
Replies: 0
Views: 260

Raspberry driver writing practice project

I'm trying to conceive me a Linux driver writing project. I could make it either on an ordinary x86 laptop or on a Raspberry Pi 3. Now I've been thinking if Raspberry has devices which would suit particularly well for this purpose. Because this is a practice project the device can already be support...

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