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by mike632t
Mon Apr 20, 2020 9:03 pm
Forum: Raspberry Pi OS
Topic: BUSTER: An x-server requires an excessive amount of storage
Replies: 1
Views: 256

Re: BUSTER: An x-server requires an excessive amount of storage

The culprit appears to be 'libgl1-mesa-dri' which is reported as having an installed size of 472226K, which for some reason is considerably larger than corresponding package in debian.

What extra does the Raspbian package include ?
by mike632t
Mon Apr 20, 2020 7:22 pm
Forum: Raspberry Pi OS
Topic: BUSTER: An x-server requires an excessive amount of storage
Replies: 1
Views: 256

BUSTER: An x-server requires an excessive amount of storage

I'm not sure where to log this but when installing a minimal xserver the amount of storage space required is a lot more then expected. # apt-get install xserver-xorg xserver-xorg-core xfonts-base xinit --no-install-recommends Reading package lists... Done Building dependency tree Reading state infor...
by mike632t
Tue Jan 21, 2020 10:44 pm
Forum: Troubleshooting
Topic: Dynamic "turbo" frequency not engaging
Replies: 2
Views: 386

Re: Dynamic "turbo" frequency not engaging

Interesting - I'm seeing the same behaviour when trying to stress my Pi4. I'm using the Official UK Raspberry Pi 4 Power Supply, though I do have a fan installed (https://thepihut.com/products/ice-tower-raspberry-pi-4-cpu-cooler), which is why I'm trying to stress the CPU to see what difference it m...
by mike632t
Fri Jan 17, 2020 11:47 pm
Forum: Troubleshooting
Topic: WiFi Issue with buster (but not stretch)
Replies: 11
Views: 2185

Re: WiFi Issue with buster (but not stretch)

Looks like this _might_ be conencted to the issue described below (noting that the software on my access point appears to be almost 17 years old!) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911297 https://bugs.launchpad.net/raspbian/+bug/1834749 Work around appears to be to install wpa-suppli...
by mike632t
Thu Jan 16, 2020 1:02 am
Forum: Troubleshooting
Topic: WiFi Issue with buster (but not stretch)
Replies: 11
Views: 2185

Re: WiFi Issue with buster (but not stretch)

Ifupdown is old, it works only ok in embedded targets and in servers, preferably without systemd. : : Ifupdown is a mess, esp. when it has to interact with complex external processes like wpa_supplicant. Firmware included in apt sources, packages are up to date. Used 'apt-get install --reinstall ra...
by mike632t
Wed Jan 15, 2020 11:37 pm
Forum: Troubleshooting
Topic: Pi 4B - 'No wireless interfaces found'
Replies: 19
Views: 12279

Re: Pi 4B - 'No wireless interfaces found'

ifconfig gives : wlan0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 ether fe:ab:89:ed:dd:8f txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 What does iwconfig show?
by mike632t
Wed Jan 15, 2020 10:34 pm
Forum: Troubleshooting
Topic: WiFi Issue with buster (but not stretch)
Replies: 11
Views: 2185

Re: WiFi Issue with buster (but not stretch)

Debian Buster and Raspbian Buster differ by a few aspects. The use of dhcpcd in Raspbian is one of them. Thanks I was starting to wonder what was going on. However, this is a minimal install using ua-netinst, not raspbian lite or similar - searching the installed packages only returns isc-dhcp-clie...
by mike632t
Wed Jan 15, 2020 6:56 pm
Forum: Troubleshooting
Topic: WiFi Issue with buster (but not stretch)
Replies: 11
Views: 2185

Re: WiFi Issue with buster (but not stretch)

I had this same problem and it turned out to be a problem with my router+Rpi 3-B+Rasbian Buster 2019/09/26 Disabling all IPV6 stuff in my router cured it. Worth a try. LOL My wireless access point is so old it doesn't know about IPv6 - it is disabled using ipv6.disable=1 in /boot/cmdline.txt. Mike T.
by mike632t
Wed Jan 15, 2020 6:50 pm
Forum: Troubleshooting
Topic: WiFi Issue with buster (but not stretch)
Replies: 11
Views: 2185

Re: WiFi Issue with buster (but not stretch)

DougieLawson wrote:
Wed Jan 15, 2020 2:59 pm
mike632t wrote:
Tue Jan 14, 2020 10:16 pm
Am I correct in assuming that this requires the package dhcpcd5 to be installed..?
It's already installed and in use in Raspbian Buster.
Except that this is a minimal installation so only isc-dhcp-client is installed.

Will install dhcpcd5 and see if this makes a difference
by mike632t
Tue Jan 14, 2020 10:16 pm
Forum: Troubleshooting
Topic: WiFi Issue with buster (but not stretch)
Replies: 11
Views: 2185

Re: WiFi Issue with buster (but not stretch)

Am I correct in assuming that this requires the package dhcpcd5 to be installed..?

Also if my configuration is wrong (as opposed to simply being legacy) - why does it work at all when initially powered up? Note that I'm not seeing any issues at all when using eth0...

Mike T.
by mike632t
Mon Jan 13, 2020 11:42 pm
Forum: Troubleshooting
Topic: WiFi Issue with buster (but not stretch)
Replies: 11
Views: 2185

WiFi Issue with buster (but not stretch)

With a minimal installation of buster (using ua-netinst) consisting of just the just base packages plus ifupdown,net-tools,systemd-sysv,nano,dialog,firmware-misc-nonfree, firmware-brcm80211, wireless-tools and wpasupplicant I'm seeing some unexpected behaviour when trying to connect using the wirele...
by mike632t
Sat Jan 11, 2020 10:43 pm
Forum: Troubleshooting
Topic: Wifi access point install fails
Replies: 4
Views: 1750

Re: Wifi access point install fails

This still works for me - a couple of useful debug commands at the end.

https://mike632t.wordpress.com/2019/02/02/

Mike T.
by mike632t
Sat Jan 04, 2020 1:07 am
Forum: Troubleshooting
Topic: Problems with system time
Replies: 1
Views: 236

Problems with system time

I have a standalone Raspberry Pi 2 Model B Rev 1.1 running raspbian buster with a v1 camera, ds1307 based RTC, and an official PSU. When powered on the system time is being set by the RTC as expected, and initially this seems to be correct (within a second or so). However while messing about using '...
by mike632t
Sun Dec 29, 2019 3:25 pm
Forum: Camera board
Topic: Official V4L2 driver
Replies: 565
Views: 530476

Re: Official V4L2 driver

Found this post mentioning the little connector on the camera board which turned out to be the reason my pi's camera stopped working after an upgrade. Good advice to check the connectors from 6by9, looks like that little one can just pop off, though I had to take the case apart to check. vcgencmd ge...
by mike632t
Fri Dec 20, 2019 10:41 pm
Forum: Beginners
Topic: Maintaining several RPis with the same setup
Replies: 1
Views: 246

Re: Maintaining several RPis with the same setup

Is this the sort of thing you want to do?

http://pinet.org.uk/
by mike632t
Wed Dec 04, 2019 1:07 pm
Forum: General discussion
Topic: Installing Visual Studio Code
Replies: 13
Views: 23244

Re: Installing Visual Studio Code

Did you install from the MS source ? I've tried getting it to compile several times on a Pi4 (4G), I've overcome the heap overflow problem, but having got it to compile I get a SEG fault when I try running it.
by mike632t
Sun Oct 27, 2019 8:20 pm
Forum: Advanced users
Topic: Output device for boot messages
Replies: 0
Views: 435

Output device for boot messages

A lot of the questions around console messages seem to be about hiding them, but I want to know if it is possible for the messages shown as my Pi boots to be displayed on _both_ tty1 and serial0. I'd like to use the same image on multiple devices - but some operate headless, and some don't. 'cmdline...
by mike632t
Sun Mar 27, 2016 8:33 pm
Forum: Astro Pi
Topic: SENSEHAT user issue
Replies: 5
Views: 2481

Re: SENSEHAT user issue

You might also find this post helpful.
by mike632t
Sun Mar 27, 2016 8:15 pm
Forum: Astro Pi
Topic: Astro Pi Temperature Sensor Reading
Replies: 64
Views: 52718

Re: Astro Pi Temperature Sensor Reading

Thanks for this - Just tried putting my Pi outside on a window sil and this code seems to do a reasonably good job of calculating the temprature - even if my Pi is in a plastic bag! (It is raining - again...) #Simple meteorology from sense_hat import SenseHat import time sense = SenseHat() while Tru...
by mike632t
Sun Mar 27, 2016 7:33 pm
Forum: Astro Pi
Topic: Accessing Sensor Data as non-root user?
Replies: 1
Views: 1523

Re: Accessing Sensor Data as non-root user?

I think I've manged to do this, basically I found that I needed to add a new rule to allow members of the 'video' group access to '/dev/fb1' and then put the users in that group if they want to use the display; as well as installing 'i2c-tools' and adding users to the 'i2c' group so they can access ...
by mike632t
Thu Mar 12, 2015 7:59 am
Forum: Advanced users
Topic: Raspberry Pi SIMH Networking
Replies: 9
Views: 6923

Re: Raspberry Pi SIMH Networking

I wouldn't expect eth0 to get an IP address - during the boot process on both my Pi and my PC I get a message about waiting for BR0 to come up, a 5 second wait, and then the boot process continues normally. The output from ifconfig on my PC which has the same config for running simh and qemu is belo...
by mike632t
Wed Dec 24, 2014 8:54 pm
Forum: General discussion
Topic: RPi doesn't take connections (Wifi)
Replies: 6
Views: 1515

Re: RPi doesn't take connections (Wifi)

Good point - the instructions were written to be quite generic (I use the same configuration on my Linux PC as well as my Pi, and started with a 'minimal' install). If you are using a standard image most firmware is proabably already installed, as are the packages you need - However attempting to re...
by mike632t
Wed Dec 24, 2014 6:55 pm
Forum: General discussion
Topic: RPi doesn't take connections (Wifi)
Replies: 6
Views: 1515

Re: RPi doesn't take connections (Wifi)

I used the (possibly over simplified) configuration that I documented here http://mike632t.wordpress.com/2013/09/20/enable-wireless-networking/ (to same me repeating it). I'm not seeing issues you seem to be experiencing and am using this configuration on both my Raspberry Pi and one of my laptops -...
by mike632t
Wed Aug 20, 2014 11:31 pm
Forum: Camera board
Topic: Official V4L2 driver
Replies: 565
Views: 530476

Re: Official V4L2 driver

First thanks for all the great work in producing an official V4L driver for the Pi. Using the latest formware and kernel ('rpi-update; apt-get update; apt-get upgrade') I had no trouble in getting it to work. Previously I have had no issues when using 'motion' with a USB webcam and have had it runni...
by mike632t
Thu Feb 27, 2014 3:25 pm
Forum: For sale
Topic: Want to fund a kickstarter?
Replies: 3
Views: 1755

Re: Want to fund a kickstarter?

Also on th KS page if funding reaches 150% header will be modified to be stackable, problem with default config is that passthru header is offset. I have not studied the schematics so I don't know if I could (in theory) just unsolder the connector and replace with a pass thru header but don't want t...

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