Difference between revisions of "Rock/display"
< Rock
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| + | The cpu of Radxa Rock - RK3188 has two LCD controllers, LCD0 and LCD1. On RR, LCD0 is connected to HDMI and LCD1 is connect to AV out and the LCD1 signal are also exported on the extension header. | ||
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| + | There is some sysfs interface exported to control the framebuffer under /sys/devices/platform/rk-fb/graphics/ | ||
| + | root@radxa:~# cd /sys/devices/platform/rk-fb/graphics/fb0 | ||
| + | * set display scale | ||
| + | root@radxa:/sys/devices/platform/rk-fb/graphics/fb0# cat scale | ||
| + | xscale=95 yscale=95 | ||
| + | root@radxa:/sys/devices/platform/rk-fb/graphics/fb0# echo xscale=100 > scale | ||
| + | root@radxa:/sys/devices/platform/rk-fb/graphics/fb0# echo yscale=100 > scale | ||
| + | root@radxa:/sys/devices/platform/rk-fb/graphics/fb0# cat scale | ||
| + | xscale=100 yscale=100 | ||
Revision as of 06:16, 7 March 2014
The cpu of Radxa Rock - RK3188 has two LCD controllers, LCD0 and LCD1. On RR, LCD0 is connected to HDMI and LCD1 is connect to AV out and the LCD1 signal are also exported on the extension header.
There is some sysfs interface exported to control the framebuffer under /sys/devices/platform/rk-fb/graphics/
root@radxa:~# cd /sys/devices/platform/rk-fb/graphics/fb0
- set display scale
root@radxa:/sys/devices/platform/rk-fb/graphics/fb0# cat scale xscale=95 yscale=95 root@radxa:/sys/devices/platform/rk-fb/graphics/fb0# echo xscale=100 > scale root@radxa:/sys/devices/platform/rk-fb/graphics/fb0# echo yscale=100 > scale root@radxa:/sys/devices/platform/rk-fb/graphics/fb0# cat scale xscale=100 yscale=100