AnsweredAssumed Answered

mx6 dual display quality

Question asked by Dennis_Han on Mar 5, 2013
Latest reply on Mar 8, 2013 by Dennis_Han


I'm using custom board based on sabrelite.

basically, dual display is working fine.


but, fb1 for second display has bad quality issue.

please refer to attached pics.


this is my working bootargs.

setenv bootargs console=ttymxc1,115200 video=mxcfb1:dev=hdmi,1280x720M@60, if=RGB24 video=mxcfb0:dev=hdmi2,1280x720M@60,if=RGB24 fbmem=28M,28M vmalloc=192M, root=/dev/mmcblk0p1 rw rootwait consoleblank=0


i add sil9022 driver as the board designed and changed its name to hdmi2.

all works fine except bad quality.


HDMI ------------------------> fb1

RGB ------->sil9022 -----> fb0


both displays set to ipu 0 disp_id 0.

i think this causing my issue though, i don't know very much about IPU stuff.

i switched fb0 and fb1 to check whether it makes different. though, just same as before.


pleas help me out.