i.MX ProcessorsのトピックRe: iMX portrait mode

iMX portrait mode

mariusoctavian — Mon, 05 Aug 2013 05:29:49 GMT

Hello,

I am trying to go in Portrait mode with SABRE iMX6 and 'eGalax Touch Screen,

using Kernel 3.0.35-2508-g54750ff. and uboot u-boot-mx6q-sabresd.bin

The Option Rotate CCW in xorg.conf works only if I comment out the vivante driver.

I really need the vivante inplace, because the media play is acceptable. Without it is terrible.

1. Is there a workaround to rotate and keep vivante in place ?

Section "Device"
    Identifier    "i.MX Accelerated Framebuffer Device"
    Driver        "fbdev"
#    Driver        "vivante"
    Option        "fbdev"        "/dev/fb0"
#    Option        "vivante_fbdev"    "/dev/fb0"
    Option        "Rotate"    "CCW"
EndSection

Second is the evdev touch Axis swap option which does not work, even the

xinput --list-props 11 <cr> reports the swapping setting was committed.

Device 'eGalax Touch Screen':

Device Enabled (114): 1

Coordinate Transformation Matrix (115): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000

Device Accel Profile (232): 0

Device Accel Constant Deceleration (233): 1.000000

Device Accel Adaptive Deceleration (234): 1.000000

Device Accel Velocity Scaling (235): 10.000000

Evdev Axis Inversion (236): 0, 0

Evdev Axis Calibration (237): 31935, 284, 33626, 869

Evdev Axes Swap (238): 1

Thank you.

Re: iMX portrait mode

mariusoctavian — Mon, 05 Aug 2013 16:33:46 GMT

Rotation touch work around:

Is working with matrix as:

xinput set-prop "eGalax Touch Screen" 'Coordinate Transformation Matrix' 0 -1 1 1 0 0 0 0 1

which I place it in ~/.xitinit

Re: iMX portrait mode

henriroosen — Mon, 12 Aug 2013 12:25:57 GMT

I'm having the same issue: our product will have it's display rotated by 90-degrees.

The vivante driver doesn't seem to support any display rotation and the normal fbdev is not an option performance wise.

Does anyone have some workaround or early code available that enables hardware rotation?

Re: iMX portrait mode

mariusoctavian — Wed, 14 Aug 2013 14:50:13 GMT

Hi,

Does anyone know where the vivante source code drivers are located?

... I found the source in kernel, but there is noting more than meaningless entry points.

Also: I've tried:

echo NN > /sys/class/graphics/fb0/rotate

where NN id 0 1 2 3 4, and works only if the vivante driver is not loaded.

Any success out there.

Re: iMX portrait mode

Dataedge — Sun, 13 Oct 2013 15:41:01 GMT

Hi all,

about Vivante drivers screen rotation: like you, our product will have it's display rotated by 270-degrees (counter clockwise CCW).

Any news about that ?