I am trying to record audio with the PS Eye on a raspberry pi model b plus (I have tried with older b models and the same issue occurs as below).
I am able to record, and playback the recording with arecord/aplay so the mic is working. However, I want to increase the mic volume as the recording is very low.
When I attempt this in alsamixer, it exits with the following error when I use F6 to change to the PS Eye soundcard:
cannot load mixer controls: Invalid argument
I also notice that the alsa-utils service will fail when the PS Eye is plugged in (fine otherwise):
sudo service alsa-utils restart
[FAIL] Shutting down ALSA...warning: 'alsactl store' failed with error message 'alsactl: get_control:259: Cannot read control '2,0,0,Mic Capture Volume,0': Invalid argument'...failed.
[....] Setting up ALSA...warning: 'alsactl restore' failed with error message 'No state is present for card CameraB409241
Found hardware: "USB-Audio" "USB Mixer" "USB1415:2000" "" ""
Hardware is initialized using a generic method
No state is present for card CameraB409241'...amixer: Mixer hw:1 load error: Invalid argument
amixer: Mixer hw:1 load error: Invalid argument
amixer: Mixer hw:1 load error: Invalid argument
amixer: Mixer hw:1 load error: Invalid argument
amixer: Mixer hw:1 load error: Invalid argument
...
done.
The problem seems to be the controls definition of the PS Eye. I would like to know the following:
Where does alsamixer load the controls for a particular device from? Are they in the driver?
Is there a way to increase the mic volume another way?
I am not using Pulseaudio yet but will try it if I can't fix this in alsa.
thanks
Sytem logs:
Without pulseaudio installed, neither restarting alsa or trying to open the controls in alsamixer produce anything in the system log. If pulse audio is installed however, trying to open the controls in alsamixer gives:
Oct 30 10:21:26 signaler pulseaudio[19000]: [pulseaudio] alsa-util.c: Unable to load mixer: Invalid argument
Oct 30 10:21:27 signaler pulseaudio[19000]: [pulseaudio] server-lookup.c: Unable to contact D-Bus: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
Oct 30 10:21:27 signaler pulseaudio[19000]: [pulseaudio] main.c: Unable to contact D-Bus: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
Related
I'm trying to interface ov5640 with raspberry Pi 4 model B, kernel version 5.15.61, till now I had loaded driver successfully and Bound driver with ov5640 successfully, and video nodes were created successfully.
I tried to stream video using gstreamer
command:
gst-launch-1.0 libcamerasrc ! video/x-raw, width=640, height=480, framerate=30/1 ! videoconvert ! videoscale ! clockoverlay time-format="%D %H:%M:%S" ! autovideosink
and it thrown error
error:
Setting pipeline to PAUSED ...
[0:02:06.704696651] [1320] INFO Camera camera_manager.cpp:293 libcamera v0.0.0+3866-0c55e522
[0:02:06.726785010] [1324] WARN CameraSensor camera_sensor.cpp:212 'ov5640 10-003c': Recommended V4L2 control 0x009a0922 not supported
[0:02:06.726879464] [1324] WARN CameraSensor camera_sensor.cpp:264 'ov5640 10-003c': The sensor kernel driver needs to be fixed
[0:02:06.726907245] [1324] WARN CameraSensor camera_sensor.cpp:266 'ov5640 10-003c': See Documentation/sensor_driver_requirements.rst in the libcamera sources for more information
[0:02:06.728038265] [1324] WARN CameraSensor camera_sensor.cpp:411 'ov5640 10-003c': Failed to retrieve the camera location
[0:02:06.746434072] [1324] ERROR IPAProxy ipa_proxy.cpp:149 Configuration file 'ov5640.json' not found for IPA module 'raspberrypi'
[0:02:06.746582013] [1324] ERROR IPARPI raspberrypi.cpp:213 Could not create camera helper for ov5640
[0:02:06.746635055] [1324] ERROR RPI raspberrypi.cpp:1253 Failed to load a suitable IPA library
[0:02:06.746922788] [1324] ERROR RPI raspberrypi.cpp:1184 Failed to register camera ov5640 10-003c: -22
ERROR: from element /GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0: Could not find any supported camera on this system.
Additional debug info:
../src/gstreamer/gstlibcamerasrc.cpp(354): gst_libcamera_src_open (): /GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0:
libcamera::CameraMananger::cameras() is empty
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...
can anyone give me a direction how to solve this?
We have a running TwinCat project on a PC. After the restart of the machine, the following error occurs when i try to run the project in "Run Mode" or try Online Reset.
Errors:
Type Server (Port) Timestamp Message
Error (65535) 'Term 29 (EK1100)' (1006): state change aborted (requested 'PREOP', back to 'INIT').
Error (65535) 'Term 29 (EK1100)' (1006): 'INIT to PREOP' failed! Error: 'check product code'. Device 'EL1014-XXXX-XXXX' found and 'EK1100-0000-0018' expected.
Warning (65535) 'Term 33 (EL1014) (1010) - Term 34 (EL1014) (1011)' Communication interrupted
Warning (65535) 'Term 35 (EK1100) (1012) - Term 43 (EL1014) (1020)' Communication interrupted
Tree structure
Online State
The EK1100 and EL1014 were changed, but the error stays. Please, can you suggest a fix for this problem?
Very likely the problem is that the configured ethercat tree structure does not match the one found.
As you can see the Ethercat master expects 'EK1100-0000-0018' but finds 'EL1014-XXXX-XXXX'
Rescan you ethercat tree from the system manager and see if the configured and the found hardware-configuration matches.
Correct your ethercat configuration if you notice errors and reactivate the project.
Specifically take a look at TERM29.
There you can probably find the source of your error.
Either a wrong card has been swapped or the ethercat connection is faulty there.
As if right now I am in a bit of a rush to get an answer to my problem. The model has been trained and the server works locally with the NN running in the background, but on the server we get the following error message:
2020-04-08 11:54:15.787274: I tensorflow/core/platform/profile_utils/cpu_utils.cc:94] CPU Frequency: 2799865000 Hz
2020-04-08 11:54:15.787801: I tensorflow/compiler/xla/service/service.cc:168] XLA service 0x4b5ca00 initialized for platform Host (this does not guarantee that XLA will be used). Devices:
2020-04-08 11:54:15.787830: I tensorflow/compiler/xla/service/service.cc:176] StreamExecutor device (0): Host, Default Version
terminate called after throwing an instance of 'std::system_error'
what(): Resource temporarily unavailable
It seems that the server host doesn't like the fact that Tensorflow is trying to log the following error/warning message:
2020-04-08 11:53:42.453164: I tensorflow/core/platform/cpu_feature_guard.cc:142] Your CPU supports instructions that this TensorFlow binary was not compiled to
use: AVX2
Is there a way in JS to disable these error logs so we can run the trained model on the server? Thanks in advance!
I bought a HotPi a while ago, and decided to use it. So I followed the procedure to configure the IR and after a few hours I was able to IR signals on my Raspberry 1.
But my purpose here is to send IR signals, which I tried, without any luck.
So this is the command I try to do (just for test):
irsend SEND_START devinput KEY_POWER ; sleep 3
And this is what lircd tells me:
lircd-0.9.4c[907]: Notice: accepted new client on /var/run/lirc/lircd
lircd-0.9.4c[907]: Info: Cannot configure the rc device for /dev/lirc0
lircd-0.9.4c[907]: Error: invalid send buffer
lircd-0.9.4c[907]: Error: this remote configuration cannot be used to transmit
lircd-0.9.4c[907]: Error: error processing command: SEND_START devinput KEY_POWER
lircd-0.9.4c[907]: Error: transmission failed
lircd-0.9.4c[907]: Info: removed client
Edit:
It seems I'm not using the good drivers. According to the HotPi documentation, I'm suppose to use lirc-rpi, which I'm suppos to install with
sudo modprobe lirc-rpi
Which, at least, doesn't return an error. But trying to configure the interface tells me that the driver doesn't exist:
pi#raspberrypi:~ $ mode2 --driver lirc-rpi --device /dev/lirc0
Driver `lirc-rpi' not found. (Missing -U/--plugins option?)
Available drivers:
accent
alsa_usb
asusdh
atilibusb
atwf83
audio
audio_alsa
awlibusb
bte
bw6130
commandir
creative
creative_infracd
default
devinput
dfclibusb
dsp
dvico
ea65
file
ftdi
ftdi-exp
ftdix
girs
i2cuser
irlink
irtoy
livedrive_midi
livedrive_seq
logitech
macmini
mouseremote
mouseremote_ps2
mp3anywhere
mplay
mplay2
pcmak
pinsys
pixelview
samsung
sb0540
silitek
slinke
sonyir
srm7500libusb
tira
tira_raw
udp
uirt2
uirt2_raw
usb_uirt_raw
usbx
zotac
Here is no info what lirc version you are using. There are vast differences between the legacy 0.9.0 still used in some distros and modern lirc.
That said, the logs seems pretty clear. You are using the devinput driver, right? This driver does not support sending data, reflecting the fact that also the kernel doesn't.
You then need to use another driver - first stop might be the default one. If/when using this other driver, you need another lircd.conf.
Please refer to http://lirc.org/html/configuration-guide.html
EDIT: Ah, lirc-0.9.4c says the log. Sorry, my bad. The reply should still be valid, though.
When you record the remote, use:
irrecord -d /dev/lirc0 -f name.conf
The -f uses raw mode. This then worked for me on the transmit side, before I got same error as you.
I would like to use the webcam of my old laptop (my laptop is a Packard Bell EasyNote MX37) in order to do streaming video.
I try to do this streaming video through VLC by following this tutorial from Ubuntu 14.04 LTS.
Unfortunately I'm stuck when I apply this command line :
cvlc v4l2:///dev/video0 :v4l2-standard= :input-slave=alsa://hw:0,0
:live-caching=300
:sout="#transcode{vcodec=WMV2,vb=800,acodec=wma2,ab=128,channels=2,samplerate=44100}:http{dst=:8080/stream.wmv}"
Indeed, I get this error message:
VLC media player 2.1.6 Rincewind (revision 2.1.6-0-gea01d28)
[0x19....] dummy interface: using the dummy interface module...
[0x7f1................] main access out error: socket bind error (Permission denied)
[0x7f1................] main access out error: socket bind error (Permission denied)
[0x7f1................] main access out error: cannot create socket(s) for HTTP host
[0x7f1................] access_output_http access out error: cannot start HTTP server
[0x7f1................] stream_out_standard stream out error: no suitable sout access module for `http/asf://:8080/stream.wmv'
[0x7f1................] main stream output error: stream chain failed for `transcode{vcodec=WMV2,vb=800,acodec=wma2,ab=128,channels=2,samplerate=44100}:http{dst=:8080/stream.wmv}'
[0x7f1................] main input error: cannot start stream output instance, aborting
Thanks a lot for your help!
PS: The goal is to keep an eye on my parking space.
Just like the error message says, VLC is not allowed to open the port you specified. This might be because it is already in use by another app on your OS or because your user account simply does not have the rights needed to open a port. Consider using a different port like 32000, etc.