AnsweredAssumed Answered

iMX6DualLite : Getting flicker in display with x-window XRandR

Question asked by koichi sakagami on Jun 5, 2015

Dear community,


We are making a x-window appllication software. ( BSP Rev is 3.14.28 )

When the application update a screen ,we get flicker.
Especially, using a XRandR for screen rotation , a screen is distracted step-like.


How can I avoid the flicker ?
Could you advise us a workaround ?


I think that this phenomenon is related with two bugs as follows.

Is it correct ?


1."xrand rotation is not accelerated by GPU"

Reduced graphic performance with rotated screen (imx6, sabresd)

2."Tearing ,it is described on i.MX 6 Graphics User’s Guide"



I captured the SABRESD display, please refer to an attached file.


The reproduction methods of the phenomenon are as follows.

  $ &
  $ export DISPLAY=:0.0
  $ xrandr
  $ xrandr -o right


Best Regards,
Koichi Sakagami

Original Attachment has been moved to: