related to frame buffer rotation to 180 degree

related to frame buffer rotation to 180 degree

[Jaymin Dabhi]

Hello,

I using i/MX6Q processor with Linux Kernel 3.0.35 version with 3.5 inch 
RGB type ORTUSTECH LCD display.

I want to rotate my LCD screen to 180 degree from current position.
I tried out to pass digits by use of echo to fb0 and fbcon in 
/sys/class/graphics/fb0 and fbcon but still nothing happen, I can do 
mirror my display but not rotate.

I write full details, what I had done for rotation at below link, please 
refer it once for full details

https://community.freescale.com/thread/346492

Help me about this to solve this issue, it will benefit me a lot.

-- 
Thanks and Regards,

JAYMIN DABHI
Embedded Engineer

Delta Embedded Solutions Pvt. Ltd.
BAT House, 720/10 Navi Peth,
Plot-985, off LBS Road,
Pune - 411030.  India.

Tel: +91 (20) 2453 0811
www.deltaembedded.in

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Re: related to frame buffer rotation to 180 degree

[Geert Uytterhoeven]

On Fri, Mar 13, 2015 at 9:41 AM, Jaymin Dabhi
<jaymin.dabhi@deltaembedded.in> wrote:
> I using i/MX6Q processor with Linux Kernel 3.0.35 version with 3.5 inch RGB
> type ORTUSTECH LCD display.
>
> I want to rotate my LCD screen to 180 degree from current position.
> I tried out to pass digits by use of echo to fb0 and fbcon in
> /sys/class/graphics/fb0 and fbcon but still nothing happen, I can do mirror
> my display but not rotate.

You do have FRAMEBUFFER_CONSOLE_ROTATION=y in your .config?

Note that rotation is only done for text console output.
Graphical applications have to take care of rotation theirselves.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds