Unable to load font 'sans': libgd was not built with FreeType font support

Official Hardware Classic Yún
1

I use Arduino YUN, When i run the command to capture image from the camera which is connected through USB i get this error
"Unable to load font 'sans': libgd was not built with FreeType font support".
Can any one help please?

2

Plan A: --no-banner

sonnyyu:

fswebcam  -i 0 -d v4l2:/dev/video0  --no-banner  --jpeg 95  --save test.jpg

--jpeg 95 will increase quality to 95%.

Make sure driver installed:

root@Arduino:/mnt/sda1# ls /dev/video0  -al

crw-r--r--    1 root    root      81,  0 Jul  7 07:08 /dev/video0




Test device :

root@Arduino:/mnt/sda1# fswebcam -d v4l2:/dev/video0 -i 0 --list-controls
--- Opening v4l2:/dev/video0...
/dev/video0 opened.
Available Controls        Current Value  Range
------------------        -------------  -----
Brightness                64 (100%)      -64 - 64
Contrast                  15 (50%)        0 - 30
Saturation                50 (39%)        0 - 127
Hue                      0 (50%)        -16000 - 16000
White Balance Temperature, Auto True            True | False
Gamma                    100 (34%)      20 - 250
Power Line Frequency      60 Hz          Disabled | 50 Hz | 60 Hz
White Balance Temperature 5000 (59%)      2800 - 6500
Sharpness                35 (35%)        0 - 100
Backlight Compensation    0              0 - 1
Adjusting resolution from 384x288 to 352x288.
--- Capturing frame...
Captured frame in 0.00 seconds.
--- Processing captured image...
There are unsaved changes to the image.

3

Plan B: Recompile libgd with freetype support if you must have banner support.

sonnyyu:
recompile libgd with freetype support.

nano ~/OpenWrt-yun/package/feeds/packages/gd/Makefile

CONFIGURE_ARGS += \

--enable-shared
        --enable-static
        --disable-rpath
        --without-x
        --without-fontconfig
        --without-freetype
        --with-jpeg=$(STAGING_DIR)/usr
        --with-png=$(STAGING_DIR)/usr
        --without-xpm
        --without-iconv




remove " --without-freetype \" then recompile libgd. then remove installed libgd force install new revision one. I have not chance to test it but you should go ahead try it yourself.
4

I have attached image after using the command u told me to... The image full Green. What could be the cause. The camera seems to be working fine... so?

picture.jpg

5

stefanos90:
I think I found the solution,
the problem was the frames.

The camera gives black because it cant take a picture with one frame.

You have to:
1)skip the first frames with the -S 10
2)or take the pictures with more frames -F 10 (range 1-255) 255 is slow
3) or give more power to camera (usb hub)

so this can give a normal picture. XD

fswebcam  -i 0 -d v4l2:/dev/video0  --jpeg 95  --save test.jpg -S 20 -r 640x480

You need powered usb hub, and skip the first few frames (-S 20).

The Yun's hardware version blow V5 has hardware bug. The powered usb hub is needed.