i compiled with the default defconfig for this Graperain linux SOM <https://www.graperain.com/ARM-Embedded-System-On-Module/> EVB board and booted.
On Tuesday, December 13, 2016 at 10:00:49 AM UTC+8, Jonathan Liu wrote: > > Hi Andrea, > > On 13 December 2016 at 09:15, Andrea Venturi <[email protected] > <javascript:>> wrote: > >> >> >> 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]> >>> 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. >> > > Maybe something like this as root? > setterm --blank poke --term linux < /dev/tty1 > /dev/tty1 > > >> >> 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 >> > > Regards, > Jonathan > -- 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.
