REL 1.0
Page 56 of 69
iWave Systems Technologies Pvt. Ltd.
iW-RainboW-G15D Linux User Manual
5.3.5
HDMI Test
The HDMI supported resolutions are,
640x480p, 720x480p, 1280x720p, 1920x1080p
And the tested resolutions are,
1280x720p,1920x1080p
Note: HDMI Monitor should support the standard HDMI resolution set. If not the images will not be displayed
properly.
1080p Resolution
1080p (1920x1080) is the default HDMI resolution. If it is not set to 1080p resolution, refer HDMI and LCD
settings section.
Change the directory to “iwtest” folder and to enable the HDMI frame buffer, execute the below commands
respectively.
root@iWave-G15~/$cd /iwtest/
root@iWave-G15/iwtest~$echo 0 > /sys/class/graphics/fb2/blank
To ensure the HDMI resolution is 1080p, execute the below command.
root@iWave-G15/iwtest~$cat /sys/class/graphics/fb2/mode
Dump the image on HDMI frame buffer
root@iWave-G15/iwtest~$cat <image name>.bin > /dev/fb2
Example
root@iWave-G15/iwtest~$cat 1080p.bin > /dev/fb2
Image will be displayed on the HDMI as shown below.
Figure 6: HDMI 1080p Image
To change the directory to “root” folder, execute the below command.
root@iWave-G15/iwtest~$cd /home/root/