Go to advanced search

by fanoush
Tue Dec 10, 2019 1:53 pm
Forum: General discussion
Topic: Pi Zero W multi purchases
Replies: 14
Views: 528

Re: Pi Zero W multi purchases

The $5 Pi Zero price, and the $10 Pi Zero W price are a One-Per-Customer introductory price (so everyone can get at least one cheap computer). This is what we were told years ago by representatives of RPF, and nothing has changed (and is not likely to change, ever). When mentioning this it would be...
by fanoush
Thu Dec 05, 2019 3:00 pm
Forum: Off topic discussion
Topic: Does this forum have a 'dark' mode ?
Replies: 23
Views: 970

Re: Does this forum have a 'dark' mode ?

I think OP asked for visual dark mode of this forum ;-)
Sometimes it is quite dark even with shiny colours.
by fanoush
Sat Nov 30, 2019 12:53 pm
Forum: General discussion
Topic: Why isn't deb.debian.org not a default repo?
Replies: 13
Views: 569

Re: Why isn't deb.debian.org not a default repo?

Spot-on prediction! I decided to revert back to Raspbian's chromium-browser so I purged everything chromium-related, disabled the deb.debian.org repository, then installed chromium-browser and rpi-chromium-mods. But now when I run chromium-browser, I get a segmentation sault. pi@raspberrypi:~ $ chr...
by fanoush
Thu Nov 28, 2019 7:02 am
Forum: General discussion
Topic: New Raspian Buster with 64 Bit...(arm64v8)
Replies: 69
Views: 3145

Re: New Raspian Buster with 64 Bit...(arm64v8)

Its a prime number benchmark heavily dependent on 64-bit division. Of course in 64-bit mode that division is one instruction and very fast, but in 32-bit mode it is a library call and obviously very slow. Hence the large performance gain for 64-bit. That's the trouble with simplistic benchmarks. Wa...
by fanoush
Wed Nov 27, 2019 2:46 pm
Forum: General discussion
Topic: New Raspian Buster with 64 Bit...(arm64v8)
Replies: 69
Views: 3145

Re: New Raspian Buster with 64 Bit...(arm64v8)

Did I mention the codes I'm testing are 30% to 40% faster running as 64 bit. Despite the fact they only do 32 bit integer maths. Try to compile sysbench from source (e.g. the 0.4 version https://github.com/akopytov/sysbench/tree/0.4 ) under both and run its standard cpu benchmark computing primes '...
by fanoush
Sun Nov 24, 2019 4:49 pm
Forum: Troubleshooting
Topic: QEMU emulating i386 machine in RPi
Replies: 9
Views: 227

Re: QEMU emulating i386 machine in RPi

you don't need qemu-system to run x86 linux kernel, for your case qemu userspace emulation should be good enough and probably much easier and faster see https://wiki.debian.org/QemuUserEmulation This will keep your arm kernel and translate just the code in x86 binaries
by fanoush
Fri Nov 15, 2019 7:26 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 280
Views: 26920

Re: Pi4 as Desktop computer

For windows 10 check Winaero Tweaker, it can disable or tune many annoying features. Each tweak is also documented what it does to registry so you can do it by hand if you wish. This is first thing I install in each new win10 vm to keep some sanity.
by fanoush
Mon Nov 11, 2019 9:29 pm
Forum: Off topic discussion
Topic: Espruino on $9.99 fitness tracker
Replies: 9
Views: 5959

Re: Espruino on $9.99 fitness tracker

Just a heads up. If you are interested in this concept of running javascript on your watch, things got more professional now. There is kickstarter done by Espruino author which started today and is already funded after few hours. https://www.kickstarter.com/projects/gfw/banglejs-the-hackable-smart-w...
by fanoush
Wed Oct 30, 2019 7:29 pm
Forum: Beginners
Topic: Is the current Pi 4 useable as 64bit?
Replies: 21
Views: 1609

Re: Is the current Pi 4 useable as 64bit?

You don't need that experimental kernel, there will be one preinstalled for you, but you need to enable it yourself in config.txt
Then after booting (still 32bit) raspbian with 64bit kernel you can run other distributions inside raspbian via chroot or schroot or systemd-nspawn or any other way.
by fanoush
Wed Oct 30, 2019 7:00 pm
Forum: Networking and servers
Topic: communication between Raspis over 60GHz band
Replies: 9
Views: 658

Re: communication between Raspis over 60GHz band

So maybe that documentation can be changed to prevent confusion and either remove those two places mentioning 60GHz mode The possible values for hw_mode are: a = IEEE 802.11a (5 GHz) b = IEEE 802.11b (2.4 GHz) g = IEEE 802.11g (2.4 GHz) ad = IEEE 802.11ad (60 GHz) or clearly say that this mode is no...
by fanoush
Sat Oct 26, 2019 4:28 pm
Forum: Bare metal, Assembly language
Topic: RTOS on GPU ?
Replies: 33
Views: 2167

Re: RTOS on GPU ?

Check https://github.com/christinaa/rpi-open-firmware There is also gcc port so with enough motivation porting some RTOS is possible.
by fanoush
Sun Oct 20, 2019 6:29 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Getting audio from a Pi Zero
Replies: 4
Views: 837

Re: Getting audio from a Pi Zero

you can also add i2s audio, see e.g http://www.lucadentella.it/en/2017/04/2 ... t-via-i2s/
there are small cheap i2s boards with headphone sockets on ebay that may work out of box
by fanoush
Fri Oct 18, 2019 3:00 pm
Forum: General discussion
Topic: Raspberry Pi Cluster Computer?
Replies: 42
Views: 3025

Re: Raspberry Pi Cluster Computer?

Actually - I was considering having two Pis (due to memory constraints of one): one connected to monitor and keyboard running X windows and another on network using first as X terminal. Also, first (with SSD) would share disk over nfs (at least /home if not more!). That way I would be able to decid...
by fanoush
Fri Oct 18, 2019 6:42 am
Forum: General discussion
Topic: Raspberry Pi Cluster Computer?
Replies: 42
Views: 3025

Re: Raspberry Pi Cluster Computer?

You would not for one instant consider joining 2 PCs or Laptops together. I guess that's true but looks like it would be for wrong reason as we get this question again and again. Maybe two laptops are too big or too expensive or it would be confusing to have two screens or two keyboards. Pi is smal...
by fanoush
Mon Oct 14, 2019 2:26 pm
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 268
Views: 51234

Re: Pi4 64-bit raspbian kernel for testing - Focus on Pi4

There is https://packages.debian.org/buster/gcc- ... -linux-gnu however on the bottom it shows that it is availablle only for some limited set of architectures including i386 and ppc64el (!), it does not include armhf.
by fanoush
Fri Oct 11, 2019 8:11 pm
Forum: General discussion
Topic: Western Digital WD Hard Drives
Replies: 9
Views: 611

Re: Western Digital WD Hard Drives

Andyroo wrote:
Fri Oct 11, 2019 8:01 pm
I’m still looking for the case by the way :lol:
Which one? Got that strange one shown here https://www.pishop.co.za/store/wdlabs-enclosure only in black :-)
However it is for normal full size Pi s not for Zero but looks mostly the same.
by fanoush
Fri Oct 11, 2019 7:50 pm
Forum: General discussion
Topic: Western Digital WD Hard Drives
Replies: 9
Views: 611

Re: Western Digital WD Hard Drives

Actually I have two unused unopened ones, one the 314GB PiDrive with the raspberry logo on the box and part number WD3140LMCW and one in blank box with part number WD3750LMCW. I also have two extra plastic bags with some special splitter cables and AC adapters that WD sold for them. I wouldn't mind ...
by fanoush
Fri Oct 11, 2019 12:38 pm
Forum: Raspbian
Topic: experimental support for multiarch with Raspbian and Debian arm64
Replies: 22
Views: 3549

Re: experimental support for multiarch with Raspbian and Debian arm64

wow, all that 64bit focus is great news, good stuff! Before starting to install arm64 packages you should be running a 64-bit kernel. See https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=250730 for more info on that. The 4.19-75 64bit kernel is part of updated raspbian images, then the packag...
by fanoush
Fri Oct 11, 2019 8:17 am
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 268
Views: 51234

Re: Pi4 64-bit raspbian kernel for testing - Focus on Pi4

incognitum wrote:
Tue Oct 08, 2019 5:08 pm
But what about Pi 2, wouldn't [pi2] match both BCM2836 and BCM2837 models?
maybe set arm_64bit=1 would just silently fail on 32bit cpu and load 32bit kernel? And if not it could be changed to work like this? Would it solve the issue?
by fanoush
Fri Oct 11, 2019 7:43 am
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 268
Views: 51234

Re: Pi4 64-bit raspbian kernel for testing - Focus on Pi4

EDIT: a bit of necro qouting from first thread page :-) (because at first I didn't notice I see first page instead of last page of the thread) If you are daring, edit /opt/Wolfram/WolframEngine/12.0/Executables/mathematica find lines: armv?l) SystemIDList="Linux-ARM";; and add after: aarch64) System...
by fanoush
Wed Oct 09, 2019 6:04 pm
Forum: General discussion
Topic: Is there any way I can use both my physical switch and my relay simultaneously
Replies: 5
Views: 241

Re: Is there any way I can use both my physical switch and my relay simultaneously

What I mean is that right now I can only use one for example if I turn on the light from the physical switch I can't turn it off from the relay and if I turn on the light from the relay I can't turn it off from the physical switch. Is there any way I can fix that Sonoff mini can do that. It can be ...
by fanoush
Wed Oct 09, 2019 2:35 pm
Forum: General discussion
Topic: SD Card power failure resilience ideas
Replies: 31
Views: 2138

Re: SD Card power failure resilience ideas

[1a] Simply keep a separate 3.3V power supply alive that only drives the SDC, and thus maintain only a modest voltage and current to keep the SDC comms and FLASH activity alive for a short amount of time. i.e. Tens of milliamps for a few hundred milliseconds. [1b] The intent is to 'wait-out' the co...
by fanoush
Tue Oct 08, 2019 1:25 pm
Forum: Troubleshooting
Topic: STICKY: If you have a Raspberry Pi 4 and are getting bad speeds transferring data to/from USB3.0 SSDs, read this
Replies: 61
Views: 32318

Re: STICKY: If you have a Raspberry Pi 4 and are getting bad speeds transferring data to/from USB3.0 SSDs, read this

jerrm wrote:
Tue Oct 08, 2019 2:06 am
Beware the odroid firmware.
Which one you mean? Some specific one from https://wiki.odroid.com/odroid-xu4/soft ... _fw_update ?
There are several versions inside jms578fwupdater.tgz linked there, the v173.01.00.02 is even from 2019.
by fanoush
Wed Sep 25, 2019 7:23 am
Forum: Troubleshooting
Topic: Rasberry Pi 4 stops working after x number of hours / days
Replies: 4
Views: 278

Re: Rasberry Pi 4 stops working after x number of hours / days

Is the green light (sd card activity) almost constantly on? I have similar experience with Chromium in Buster on Pi4 2GB. I leave it alone with couple of tabs open and no SD activity and enough free memory left and over night I often find it with green LED constantly on like if it is out of memory a...
by fanoush
Wed Sep 25, 2019 6:32 am
Forum: General discussion
Topic: Update for Rpi Zero W?
Replies: 74
Views: 2757

Re: Update for Rpi Zero W?

As you note, price is kind of a big deal when it comes to a $5, well, anything. Indeed. However the OP asked about Zero W and that one is $9. And the WH variant without quantity limits is even more. So while the $5 Zero is difficult for many reasons related to price, the W/WH price hopefully allows...

Go to advanced search