topic Re: FBx / fbcon rotation in Vybrid Processors

FBx / fbcon rotation

Nouchi — Tue, 11 Feb 2014 15:03:50 GMT

Hello,

What is the best way to make frame buffer and console rotation working like this: echo 1 > /sys/class/graphics/fb0/rotate ?

/sys/class/graphics/fb0/rotate exists, cat /sys/class/graphics/fb0/rotate return 0, but writing into it, turns the display in blac

Emmanuel

Re: FBx / fbcon rotation

naoumgitnik — Tue, 11 Feb 2014 22:33:00 GMT

Hello Emmanuel,

I am a bit confused - is it posted in the right Community space? If so, may you refer to a specific Vybrid document / clause / page, please?

Regards, Naoum Gitnik.

Re: FBx / fbcon rotation

Nouchi — Wed, 12 Feb 2014 08:40:52 GMT

Hello Naoum,

I'm working on a TWR-65GS10 kit with timeSys factory. I'm using a 7" WVGA(800*480) display, and it's positioned in portrait mode, so I need to rotate something, frame buffer, console and QT environment. For Qt it's easy, just use -display "transformed:rot90:1" option in command line, but for the frame buffer or console, it's not so easy, that why I ask some help about this.

The classic way to do that with linux is to use /sys/class/graphics/fb0/rotate for frame buffer rotation and /sys/class/graphics/fbcon/rotate for console rotation, and it doesn't work.

regards,

Emmanuel.

Re: FBx / fbcon rotation

karina_valencia — Wed, 12 Feb 2014 17:53:13 GMT

timesyssupport can you attend this case?

Re: FBx / fbcon rotation

timesyssupport — Wed, 12 Feb 2014 19:00:31 GMT

Hi,

It is a known issue that the DCU driver does not support rotation. We do not have an ETA for a fix at this time; if this is a time-sensitive issue, Timesys can pursue under a services agreement.

Thanks,

Timesys Support

Re: FBx / fbcon rotation

carlovalgocela — Fri, 17 Apr 2015 00:27:20 GMT

Hi,

Any updates on DCU driver supporting the framebuffer rotation?