90 degrees rotation capability for Full-HD using IRT (into IPU) in QuadPlus

[george]

Dear all,

We have heard that 90 degrees rotation for Full-HD using IRT (ImageRotator) cannot be performed in i.MX6.

* It is described by this URL, for example. --> i.MX6 IPU and rotating a frame buffer

We expect that it is possible in QuadPlus.

Is it possible in QualPlus?

Best Regards,

George

[igorpadykov · Accepted solution]

Hi George

IPU module is the same in QuadPlus, so capabilities the same.

QuadPlus improved bus architecture and add/(fixed errata) some modules

for improving ddr performance

Best regards

igor

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[george]

Dear Igor,

OK, I understood.

Isn't there any way of rotating 90 " and displaying the Full-HD size movie from streaming?

Is it impossible in MX6 series?

Best Regards,

George

[friederschrempf]

Hi George,

I tried the patch from Marco Antonio Segalla Cassol (Re: i.MX6 IPU and rotating a frame buffer​) and I can rotate the FullHD HDMI output.

Though I don't know if there are any other limitations.

Best Regards

Frieder

[george]

Dear Frieder,

You are wonderful !!

It had not tried, though I was also reading the thread.

However, I will try it like you.

Please let me know Kernel Command Line Option which you used.

Is the following correct?

"console=ttymxc0,115200 root=/dev/mmcblk2p2 rootwait rw video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,ROTATE=4"

Best Regards,

George

[friederschrempf]

Hi George,

I used this for the video parameter:

video=mxcfb0:dev=hdmi,1920x1080M@60,rotate=4,if=RGB24

But it seems like it doesn't work on all screens. I have a HDMI screen that says "input not supported" if  rotate is between 4 and 7.

On a different screen all rotation options seem to work.

I haven't tested LCD and LVDS screens so far.

Best Regards

Frieder

[igorpadykov]

Hi George

probably one can try it with g2d, please check attached Linux Manual

sect.7.5.3 Video conversion

Best regards

igor