How to rotate the LCD screen/framebuffer to 180 degree ?

JayminD · 03-12-2015, 12:42 AM

I have one query regarding to frambuffer.

I have custom board with i.MX6Q SoC.

I am using Linux kernel 3.03.35 and LCD is 3.5 inch RGB type display.

I want to rotate my LCD screen to 180 degree. I tried a lot to pass parameters to > /sys/..../fbcon/rotate but nothing happen.

So Is there any way to rotating the screen without compiling the kernel. ?

Bcoz kernel compilation is my last option so I trying to rotate my screen via console Help me regarding oto this issue and give me solution for this.

I also founded some bit "IPU_ROTATE_180" in > /arch/arm/plat-mxc/include/mach/ipu.h and using by > /drivers/video/mxc/mxc_ipuv3_fb.c file.

I did some changes as below.

I passed "IPU_ROTATE_180" instead of "IPU_ROTATE_NONE" in "ipu_device.c" in > /drivers/mxc/ipu3/ but nothing change.

I also passed hard coded value (3 for 180 degree rotation as per enum) in "fbcon.c" file > / driver/video/console but nothing changes.

At where place/files/code should I changes in kernel tree ?

Please help me, its imp for me.

Thanks and Regards
Jaymin D

kuser:) · 03-12-2015, 04:20 AM

Not sure if that's what you're looking for but, I did:

Code:

bash-4.2$ apropos rotate

and one of the strings is:

Code:

Xrandr []            (3)  - X Resize, Rotate and Reflection extension

which has a "rotation" and "current_rotation" arguments.

onebuck · 03-12-2015, 08:54 AM

Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being closed because it is a duplicate of http://www.linuxquestions.org/questi...ee-4175536476/