Il giorno lunedì 12 dicembre 2016 03:20:56 UTC+1, Jonathan Liu ha scritto: > > Hi Andrea, > > On 11 December 2016 at 22:48, Andrea Venturi <[email protected] > <javascript:>> wrote: > >> hello, >> .... >> the only issue is that, after few minutes (10 or so), the display switch >> to this kind of rendering: >> >> https://drive.google.com/open?id=0B9QRW6Oy0GmeOGdvM3YyYUtqZHM >> >> no messages on syslog or console. i'm wondering which kind of "glitch" >> could bring to this (i suppose some kind of "clock power down"?). >> > Console blank is 600 seconds by default - kernel will turn off the console > after 10 minutes of inactivity. > Try adding consoleblank=0 to your kernel command line. > > It is powering down the display engine without powering off the LCD. > >
thanx. indeed it was it. adding 'consoleblank=0' has made the LCD rendering stable. BTW i'm wondering if there's eventually a way to turn back on the console. i tried to type something on the serial console /dev/ttyS0 but that wasn't enoguh for bringing the display back to life. on the other hand, this setup is unable to power down the display completely because the backlight is not driven by a GPIO pin but always on. Andrea -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
