Good point. The Linux driver does the same thing: github.com/.../vdc5fb.c tmp = vdc5fb_read(priv, LCLKSELR); /* Internal parameter setting for LVDS PLL */ tmp |= LVDS_SET_TST(0x0008); vdc5fb_write(priv, LCLKSELR, tmp); But, maybe the person that wrote this driver used lcd_setttings.c as sample code as well. But, since many systems are using '8' instead of '0x10', you might want to just stick with '8' for now to be safe. If I ever find out the real answer, I'll post it. Chris
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