I'm trying to install Waveshare 7" version C HDMI+usb touch screen on CubieBoard4. I'm nearly crayz to install it...
First of all, I added clk tables HDMI timings to Uboot display modules then to the android's hwcomposer as below:
VIC pixel_freq h_active v_active h_total h_back h_front h_sync v_total v_back v_front v_sync h_pol v_pol
VIC PCLK AVI_PR X Y HT HBP HFP HST VT VBP VFP VST h_pol v_pol int vac trd
HDMI1024_600P_60 50400000 0 1024 600 1344 160 24 136 638 29 3 6 1 1 0 0 0
At the end of compiling image, when I adjust custom HDMI resolution as 1024x600, there is nothing in the bootup process (only white screen), then as soon as Android boot_copleted event triggered only for 1 secon I can be able to see screen image but it is starting from half of the screen.. After 1 second it disappears again...
Is hdmi timings are wrong or another mistake do I ?
Please help me?