HDMI只能显示一半的问题

[senli]

大家好:

       现在在调试一款HDMI的屏，分辨率是1440*2560的。

我用的Linux版本是imx6q 3.10.17

我修改了mxc_edid.c中const struct fb_videomode mxc_cea_mode[64]的设置，将里面的参数改为

[1] = {
NULL, 30, 1440, 2560, 6734, 35, 35, 12, 2, 11, 2,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED | FB_VMODE_ASPECT_16_9, 0,
},

但是编译重新烧录后，界面有显示但是只能显示一半，显示效果如图

请问有没有办法解决？

另外imx6q能否支持1440*2560的分辨率？

[joanxie]

when you use cat /sys/class/graphsics/fb0/mode, what resolution do you get? did you change the resolution in the uboot command? in current bsp which don't support this resolution. if you need to add new resolution, pls refer to the link as below:

https://community.nxp.com/thread/444393