OK...
Could you run systemctl disable --now webcamd.service and reboot the Pi. Do the LED turn on on both of the webcams once the Pi is restarted and do they stay on ? The command disables the streaming of webcams, so you won't see anything on OctoPrint. But I'd like to see if they both stay on or not, even without the streaming service.
pi@octopi:~ $ systemctl disable --now webcamd.service
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-unit-files ===
Authentication is required to manage system service or unit files.
Authenticating as: ,,, (pi)
Password:
==== AUTHENTICATION COMPLETE ===
Removed /etc/systemd/system/multi-user.target.wants/webcamd.service.
==== AUTHENTICATING FOR org.freedesktop.systemd1.reload-daemon ===
Authentication is required to reload the systemd state.
Authenticating as: ,,, (pi)
Password:
==== AUTHENTICATION COMPLETE ===
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ===
Authentication is required to stop 'webcamd.service'.
Authenticating as: ,,, (pi)
Password:
==== AUTHENTICATION COMPLETE ===
pi@octopi:~ $ sudo reboot
[sudo] password for pi:
only the logitech c922 light turned on and stayed on this time.
So basically, one or the other turns on when the Pi starts...
How many USB ports does your Pi have ?
right now just seems like the 922. and 2 usb 2.0 and 2 3.0 its a raspberry pi4b
Just trying to get the obvious out of the way. What happens when you boot the Pi if the printer isn't connected ?
just tried plugging both camera into my laptop just to confirm once more and both work fine.
just tried. same thing the c922 lights up but not the 920
On which ports are the cameras connected ?
tried a mix of everything. both on 3.0, both on 2.0 and 1 on each.
with the same results I assume ?
yes, correct
Could you try running the v4l2-ctl -L -d /dev/v4l/by-id/*-index0 command, with each one of the webcam, and with only one camera at a time connected to the Pi ?
with only the 920 plugged in.
pi@octopi:~ $ v4l2-ctl -L -d /dev/v4l/by-id/*-index0
brightness 0x00980900 (int) : min=0 max=255 step=1 defau lt=128 value=128
contrast 0x00980901 (int) : min=0 max=255 step=1 defau lt=128 value=128
saturation 0x00980902 (int) : min=0 max=255 step=1 defau lt=128 value=128
white_balance_temperature_auto 0x0098090c (bool) : default=1 value=1
gain 0x00980913 (int) : min=0 max=255 step=1 defau lt=0 value=255
power_line_frequency 0x00980918 (menu) : min=0 max=2 default=2 valu e=2
0: Disabled
1: 50 Hz
2: 60 Hz
white_balance_temperature 0x0098091a (int) : min=2000 max=6500 step=1 d efault=4000 value=3155 flags=inactive
sharpness 0x0098091b (int) : min=0 max=255 step=1 defau lt=128 value=128
backlight_compensation 0x0098091c (int) : min=0 max=1 step=1 default =0 value=0
exposure_auto 0x009a0901 (menu) : min=0 max=3 default=3 valu e=3
1: Manual Mode
3: Aperture Priority Mode
exposure_absolute 0x009a0902 (int) : min=3 max=2047 step=1 defa ult=250 value=1000 flags=inactive
exposure_auto_priority 0x009a0903 (bool) : default=0 value=1
pan_absolute 0x009a0908 (int) : min=-36000 max=36000 step= 3600 default=0 value=0
tilt_absolute 0x009a0909 (int) : min=-36000 max=36000 step= 3600 default=0 value=0
focus_absolute 0x009a090a (int) : min=0 max=250 step=5 defau lt=0 value=40 flags=inactive
focus_auto 0x009a090c (bool) : default=1 value=1
zoom_absolute 0x009a090d (int) : min=100 max=500 step=1 def ault=100 value=100
with only the 922 plugged in.
pi@octopi:~ $ v4l2-ctl -L -d /dev/v4l/by-id/*-index0
brightness 0x00980900 (int) : min=0 max=255 step=1 default=128 value=128
contrast 0x00980901 (int) : min=0 max=255 step=1 default=128 value=128
saturation 0x00980902 (int) : min=0 max=255 step=1 default=128 value=128
white_balance_temperature_auto 0x0098090c (bool) : default=1 value=1
gain 0x00980913 (int) : min=0 max=255 step=1 default=0 value=0
power_line_frequency 0x00980918 (menu) : min=0 max=2 default=2 value=2
0: Disabled
1: 50 Hz
2: 60 Hz
white_balance_temperature 0x0098091a (int) : min=2000 max=6500 step=1 default=4000 value=4000 flags=inactive
sharpness 0x0098091b (int) : min=0 max=255 step=1 default=128 value=128
backlight_compensation 0x0098091c (int) : min=0 max=1 step=1 default=0 value=0
exposure_auto 0x009a0901 (menu) : min=0 max=3 default=3 value=3
1: Manual Mode
3: Aperture Priority Mode
exposure_absolute 0x009a0902 (int) : min=3 max=2047 step=1 default=250 value=250 flags=inactive
exposure_auto_priority 0x009a0903 (bool) : default=0 value=1
pan_absolute 0x009a0908 (int) : min=-36000 max=36000 step=3600 default=0 value=0
tilt_absolute 0x009a0909 (int) : min=-36000 max=36000 step=3600 default=0 value=0
focus_absolute 0x009a090a (int) : min=0 max=250 step=5 default=0 value=0 flags=inactive
focus_auto 0x009a090c (bool) : default=1 value=1
zoom_absolute 0x009a090d (int) : min=100 max=500 step=1 default=100 value=100
both plugged in
pi@octopi:~ $ v4l2-ctl -L -d /dev/v4l/by-id/*-index0
unknown arguments: /dev/v4l/by-id/usb-046d_HD_Pro_Webcam_C920_A69AE6FF-video-index0
General/Common options:
--all display all information available
-C, --get-ctrl <ctrl>[,<ctrl>...]
get the value of the controls [VIDIOC_G_EXT_CTRLS]
-c, --set-ctrl <ctrl>=<val>[,<ctrl>=<val>...]
set the value of the controls [VIDIOC_S_EXT_CTRLS]
-D, --info show driver info [VIDIOC_QUERYCAP]
-d, --device <dev> use device <dev> instead of /dev/video0
if <dev> starts with a digit, then /dev/video<dev> is used
-e, --out-device <dev> use device <dev> for output streams instead of the
default device as set with --device
if <dev> starts with a digit, then /dev/video<dev> is used
-h, --help display this help message
--help-all all options
--help-io input/output options
--help-meta metadata format options
--help-misc miscellaneous options
--help-overlay overlay format options
--help-sdr SDR format options
--help-selection crop/selection options
--help-stds standards and other video timings options
--help-streaming streaming options
--help-subdev sub-device options
--help-tuner tuner/modulator options
--help-vbi VBI format options
--help-vidcap video capture format options
--help-vidout vidout output format options
--help-edid edid handling options
-k, --concise be more concise if possible.
-l, --list-ctrls display all controls and their values [VIDIOC_QUERYCTRL]
-L, --list-ctrls-menus
display all controls and their menus [VIDIOC_QUERYMENU]
-r, --subset <ctrl>[,<offset>,<size>]+
the subset of the N-dimensional array to get/set for control <ctrl>,
for every dimension an (<offset>, <size>) tuple is given.
-w, --wrapper use the libv4l2 wrapper library.
--list-devices list all v4l devices
--log-status log the board status in the kernel log [VIDIOC_LOG_STATUS]
--get-priority query the current access priority [VIDIOC_G_PRIORITY]
--set-priority <prio>
set the new access priority [VIDIOC_S_PRIORITY]
<prio> is 1 (background), 2 (interactive) or 3 (record)
--silent only set the result code, do not print any messages
--sleep <secs> sleep <secs>, call QUERYCAP and close the file handle
--verbose turn on verbose ioctl status reporting
also now after plugging both back into usb 2.0 ports the 920 is on and the c922 is off
also i can still see the one camera (c920 since its connected) on octoprint.
That's strange, it shouldn't show up since the systemctl disable command... What's the output of systemctl status webcamd.service ?
pi@octopi:~ $ systemctl status webcamd.service
● webcamd.service - the OctoPi webcam daemon with the user specified config
Loaded: loaded (/etc/systemd/system/webcamd.service; disabled; vendor preset: enabled)
Active: inactive (dead)
Could you try ps aux|grep mjpg please ? And copy here the output.
pi@octopi:~ $ ps aux|grep mjpg
pi 2187 0.0 0.0 7348 512 pts/1 S+ 17:08 0:00 grep --color=auto mjpg
and sudo netstat -4anp -t |grep 8080 ? sudo netstat -4anp -t |grep 8081 ?
pi@octopi:~ $ sudo netstat -4anp -t |grep 8080 ? sudo netstat -4anp -t |grep 8081
grep: invalid option -- 'p'
Usage: grep [OPTION]... PATTERNS [FILE]...
Try 'grep --help' for more information.
[sudo] password for pi:
those are two separate commands:
sudo netstat -4anp -t |grep 8080sudo netstat -4anp -t |grep 8081