Go to advanced search

by ShiftPlusOne
Wed Sep 18, 2019 8:05 pm
Forum: General discussion
Topic: Small piwiz race condition (time sync)
Replies: 20
Views: 448

Re: Small piwiz race condition (time sync)

RonR wrote:Should we be concerned with?
I wouldn't be, but I never tried to find out why systemd says it.

It could make sense if you modified a service and restarted it without running that command, but in this case, contrary to the message, no changes have been made.
by ShiftPlusOne
Wed Sep 18, 2019 3:02 pm
Forum: Astro Pi
Topic: SenseHAT compatible with Pi4?
Replies: 4
Views: 370

Re: SenseHAT compatible with Pi4?

Since the new graphics stack doesn't create a framebuffer if no display is plugged in, the sense hat comes up as fb0. Fbcon sees that and tries to draw to it. Due to a bug in the driver that I need to look into, it causes a kernel panic. I haven't found a way to tell fbcon not to use a given device,...
by ShiftPlusOne
Wed Sep 18, 2019 2:04 pm
Forum: General discussion
Topic: Raspberry Pi4 bootloader update package
Replies: 44
Views: 2506

Re: Raspberry Pi4 bootloader update package

I think this was originally written for python3 but was changed later to support a distro which don't ship with python3. Don't remember the specifics.

Python 2 going EOL upstream does not mean much. Distros will still support it and people will still use it.
by ShiftPlusOne
Wed Sep 18, 2019 1:27 pm
Forum: General discussion
Topic: Small piwiz race condition (time sync)
Replies: 20
Views: 448

Re: Small piwiz race condition (time sync)

Another option: /usr/lib/systemd/systemd-time-wait-sync Typically, if you have a service that relies on having the time synchronised, you add a dependency on time-sync.target, which will execute the above commands before running it. IMHO, desktop applications shouldn't make assumptions about whether...
by ShiftPlusOne
Wed Sep 18, 2019 12:47 pm
Forum: General discussion
Topic: 8086tiny
Replies: 39
Views: 19358

Re: 8086tiny

The previous 8086tiny package is a bit messy. I was working on making it a bit more standard and ran into a few issues. 1) There are several versions that can be built normal, slowcpu and nographics. I'd imagine there are cases where you'd want to use different ones. 2) The bios binary needs to have...
by ShiftPlusOne
Wed Sep 18, 2019 11:17 am
Forum: Bare metal, Assembly language
Topic: RPIZero Chromium binary question...
Replies: 2
Views: 81

Re: RPIZero Chromium binary question...

I don't know for a fact, but it may have runtime detection NEON support, which would result in a false positive. We disable it in our builds[1], but given the large code base and number of statically linked libraries, who knows. [1] https://github.com/RPi-Distro/chromium-browser/blob/master/debian/r...
by ShiftPlusOne
Wed Sep 18, 2019 10:59 am
Forum: HATs and other add-ons
Topic: POE fan control?
Replies: 15
Views: 219

Re: POE fan control?

5V, 3V3, GND, ID_SD, ID_SC

If you didn't connect 3V3 then the microcontroller wouldn't start and take control over the fan or identify itself as a HAT.
by ShiftPlusOne
Wed Sep 18, 2019 10:52 am
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 106
Views: 10371

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

I wouldn't expect the kernel-headers package to be enough, since it's missing the module symbols, build directory symlink and other stuff that's normally included. To build out of tree modules, you need the extra stuff that comes with it.
by ShiftPlusOne
Tue Sep 17, 2019 9:44 pm
Forum: HATs and other add-ons
Topic: POE fan control?
Replies: 15
Views: 219

Re: POE fan control?

8686hso wrote:
Tue Sep 17, 2019 2:02 pm
I have this behaviour on a set of 8 Raspberry 3b+ with POE.
Same one POE HAT tried on 8 Pis? Or, do you have 8 different POE HATs all exhibiting the same behavior?
by ShiftPlusOne
Tue Sep 17, 2019 8:36 pm
Forum: HATs and other add-ons
Topic: POE fan control?
Replies: 15
Views: 219

Re: POE fan control?

This is definitely the official PoE HAT? https://www.raspberrypi.org/products/poe-hat/ It all seems a bit strange. 1) By default, as soon as power is applied, the fan will spin a tiny bit and then turn off until linux takes over. It should be off well before the Linux starts loading. 2) There's no e...
by ShiftPlusOne
Tue Sep 17, 2019 5:10 pm
Forum: HATs and other add-ons
Topic: POE fan control?
Replies: 15
Views: 219

Re: POE fan control?

8686hso wrote:At first I try it this way
That's fine
8686hso wrote:cur_state, trip* and *pwm* do not exist.
That's a problem.

Can you post 'dmesg', 'lsmod', 'uname -a' and 'sudo vcdbg log msg'?
by ShiftPlusOne
Tue Sep 17, 2019 3:36 pm
Forum: HATs and other add-ons
Topic: POE fan control?
Replies: 15
Views: 219

Re: POE fan control?

When the temperature is under 45 and the fan is on, could you please post the output of these commands?

Code: Select all

cat /sys/class/thermal/cooling_device*/cur_state 
cat /sys/class/thermal/thermal_zone*/trip*
cat /sys/class/hwmon/hwmon*/*pwm*
vcgencmd measure_temp
cat /boot/config.txt
by ShiftPlusOne
Tue Sep 17, 2019 2:12 pm
Forum: HATs and other add-ons
Topic: POE fan control?
Replies: 15
Views: 219

Re: POE fan control?

What behaviour would you like? I'll try to reproduce it here and send you my changes. Then we can troubleshoot if it's still not working after that.
by ShiftPlusOne
Tue Sep 17, 2019 11:18 am
Forum: HATs and other add-ons
Topic: POE fan control?
Replies: 15
Views: 219

Re: POE fan control?

It's noisy at boot and then stops being noisy or it's always noisy? Does the speed get adjusted at all with temperature? I don't think it should be on t all once booted at 38C, but I don't remember the exact behaviour before the driver loads.
by ShiftPlusOne
Mon Sep 16, 2019 10:58 am
Forum: General discussion
Topic: Small piwiz race condition (time sync)
Replies: 20
Views: 448

Re: Small piwiz race condition (time sync)

I've passed the problem on to the developer of piwiz.

Thanks, Sakaki.
by ShiftPlusOne
Sun Sep 15, 2019 11:37 am
Forum: Troubleshooting
Topic: I get 'command not found' not a prompt to apt-get
Replies: 11
Views: 4547

Re: I get 'command not found' not a prompt to apt-get

There's a bug in apt-file, but I haven't had time to investigate it yet.
by ShiftPlusOne
Sun Sep 15, 2019 10:15 am
Forum: Beginners
Topic: Am I running 32 or 64 bit ?
Replies: 9
Views: 330

Re: Am I running 32 or 64 bit ?

Last time I checked, it was licensing issues.

Debian maintainers have been waiting on this for 4 years: https://github.com/arduino/Arduino/pull/2703

https://bugs.debian.org/cgi-bin/bugrepo ... bug=780706
by ShiftPlusOne
Sat Sep 14, 2019 8:00 pm
Forum: General discussion
Topic: Locked topic question?
Replies: 4
Views: 195

Re: Locked topic question?

Do you have a link to the topic?
by ShiftPlusOne
Fri Sep 13, 2019 4:52 pm
Forum: General discussion
Topic: Third party OS using pi 4
Replies: 16
Views: 634

Re: Third party OS using pi 4

OK. I would like some shares for this, but anyways: Pi people, if you froze Raspbian for a month and put all your efforts and the community into getting Mate to work, don't you think you would sell 10 x times what you are now do? Nothing would match the growth. No, where are you getting these numbe...
by ShiftPlusOne
Fri Sep 13, 2019 4:08 pm
Forum: General discussion
Topic: [resolved] Providing hardware version info in raspi-config?
Replies: 3
Views: 134

Re: Providing hardware version info in raspi-config?

It should already show up in the top left corner.
by ShiftPlusOne
Fri Sep 13, 2019 9:35 am
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 106
Views: 10371

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

Wrapping commands in 'setarch linux32' will work around the uname issue.
by ShiftPlusOne
Thu Sep 12, 2019 8:00 pm
Forum: Graphics programming
Topic: Documentation for VC6
Replies: 46
Views: 3184

Re: Documentation for VC6

I'm not sure why you think that posting a link to that huge page of kernel developers documentation is supposed to help explain things to non-kernal developers ? It was more of a "this is the KMS that's being referred to", not an attempt to explain what it is to non-kernel developers. Kernel Mode S...
by ShiftPlusOne
Thu Sep 12, 2019 6:45 pm
Forum: Graphics programming
Topic: Documentation for VC6
Replies: 46
Views: 3184

Re: Documentation for VC6

I have one other question as well. On other Linux computers, I have heard of DKMS (Dynamic Kernel Module Support) but not FKMS. FKMS seems to be a Pi specific animal. Is it a re-spin of DKMS specific to Broadcom? I have dealt primarily with Nvidia GPU's in Linux since the tend to have the best driv...

Go to advanced search