New answers tagged raspberry-pi
1
I found out that the hid module has the paramenter ignore_special_drivers which does just that, ignore all the specialized drivers and use hid-generic to handle the device.
Since the hid-sony module does not support properly my PS3 clone arcade stick, adding the parameter to hid module solves the issue.
$ sudo vi /etc/modprobe.d/hid.conf
options hid ...
0
I can't really help you with the first question unless you provide more info about what doesn't work and what you have tried. I will see what I can do if you describe your problem in a more detailed way.
Now to the second question: Installing a Linux distribution on a disk creates multiple partitions. Those are what you saw as multiple volumes. The reason ...
0
The key to solve this was strictly following the instructions about the DTB in https://github.com/dhruvvyas90/qemu-rpi-kernel#choosing-a-kernel-image
Choosing a kernel image
This repository contains three types of kernel images:
kernel-qemu-4.*.*-buster are the most recent images, which are compatible with Raspbian Buster and Stretch. To use ...
0
I see no exception handling in your code. A properly designed application should have exception handling and log errors to a file. You say your script runs if you remove parts of the code, so that means the cron is executing it, but if an error occurs you have no trace and investigation is difficult. If you had a log, maybe you would already have figured out ...
1
Check the output of the dmesg command on the raspberry pi.
I get something like:
[ 296.768548] ------------[ cut here ]------------
[ 296.768576] WARNING: CPU: 3 PID: 40 at drivers/tty/tty_port.c:257 tty_port_put+0x94/0x98
[ 296.768586] Modules linked in: rfcomm cmac bnep hci_uart btbcm serdev bluetooth ecdh_generic 8021q garp stp llc brcmfmac brcmutil ...
1
I found that access to port 22 was opened when I went to Preferences / Raspberry Pi Configuration, chose Interfaces tab and marked SSH as "enabled".
0
You can have tune2fs do a fsck on boot with the following command
sudo tune2fs -c 1 /dev/mmcblk0p2
This tells the system to do a fsck every reboot on the root / device.
Almost forgot to say, then reboot it should fsck /.
Note this will only work on ext2/3/4 filesystems
You can see last date for fsck with the following
tune2fs -l /dev/mmcblk0p2 |grep -...
4
I had a similar problem with a Raspberry 3B. In the end I had two issues:
power saving. If I read new files once every five minutes no problems. Leave the disk alone half an hour and I would get errors. I remember not being able to find the sleep support in Raspbian (my fault), and finally using hdparm to fix the disk, I probably set the sleep time to ...
4
Sugov is a kernel thread used in ARM architecture as part of the scheduling governor.
the sugov kthread is a special RT task, which goal is just that to activate a frequency transition
As far as I can tell from the referenced documents the 13% CPU usage is a fake measurement and you needn't be worried about it.
It has a strange name so that grep can now ...
0
There is no way to pass the eapol_version=1 option from NetworkManager to wpa_supplicant directly, but you can work around this limitation:
Edit your wpa_supplicant.service:
systemctl edit --full wpa_supplicant.service
and replace the line:
ExecStart=/sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
with:
ExecStart=/sbin/wpa_supplicant -u -s -O /run/...
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