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List:       freedesktop-xorg
Subject:    modesetting driver performance drops after screen rotation to 90/180/270
From:       "Motghare, Vishnu" <VishnuMotghare () eaton ! com>
Date:       2024-02-01 9:53:28
Message-ID: SA1PR17MB5652A548932B916C564E6104D4432 () SA1PR17MB5652 ! namprd17 ! prod ! outlook ! com
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I'm using the IMX.6 custom board with the following combination

Linux            -  Mainline 5.15
GPU driver  -  Etnaviv
X Driver        -  xf86-video-modesetting
OpenGL        -  OpenGL ES-CM 1.1 Mesa 23.3.3

When the screen is set to normal mode, the glmark2 performance score is 80.

When the screen rotates to 90/270/180, the glmark2 performance score drops to 19.

Is this a known issue in the modesetting driver?  Or Etnaviv kernel driver? Why does \
performance drop after screen rotation? 

I have also tried with xf86-video-armada driver, I get the blank screen after screen \
rotation.

Any help is appreciated. 

Thank,
Vishnu


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