[Letux-kernel] framebuffer rotation

Michael Mrozek EvilDragon at openpandora.org
Mon Sep 9 10:40:22 CEST 2019


Isn't that a simple software rotation?
If it is, it should be really slow.

On 9 September 2019 10:18:26 CEST, "H. Nikolaus Schaller" <hns at goldelico.com> wrote:
>Hi,
>I just learned that
>
>root at letux:~# echo 0 > /sys/class/graphics/fbcon/rotate_all 
>root at letux:~# echo 1 > /sys/class/graphics/fbcon/rotate_all 
>root at letux:~# echo 2 > /sys/class/graphics/fbcon/rotate_all 
>root at letux:~# echo 3 > /sys/class/graphics/fbcon/rotate_all 
>
>also does screen/framebuffer rotation.
>
>Now I wonder why we need to patch drm_fb_helper (which is
>currently broken in letux-5.3) and have our own ./tiler-ctl
>script?
>
>Any suggestions or explanations are welcome.
>
>BR and thanks,
>Nikolaus
>
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-- 
Mit freundlichen Grüßen / Greetings,

Michael Mrozek

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