AnsweredAssumed Answered

Android KitKat touch misaligned, yres_virtual wrong

Question asked by Luke Marvin on Jan 28, 2015
Latest reply on Oct 17, 2016 by Jansi Rani

Hi,

 

My touchscreen isn't working quite right. The touch is being reported incorrectly on the Y axis. I noticed the following lines in Logcat.

 

W/imx6.gralloc( 2101): 32bpp setting of Framebuffer catched!
W/imx6.gralloc( 2101): using (fd=15)
W/imx6.gralloc( 2101): id           = DISP3 BG
W/imx6.gralloc( 2101): xres         = 480 px
W/imx6.gralloc( 2101): yres         = 800 px
W/imx6.gralloc( 2101): xres_virtual = 480 px
W/imx6.gralloc( 2101): yres_virtual = 2688 px
W/imx6.gralloc( 2101): bpp          = 32
W/imx6.gralloc( 2101): r            =  0:8
W/imx6.gralloc( 2101): g            =  8:8
W/imx6.gralloc( 2101): b            = 16:8
W/imx6.gralloc( 2101): width        = 76 mm (160.421051 dpi)
W/imx6.gralloc( 2101): height       = 127 mm (160.000000 dpi)
W/imx6.gralloc( 2101): refresh rate = 65.20 Hz

 

This may be the source of my problem. Does anyone know where this value is originally being computed? Is it in the graphics driver or in the touchscreen driver (Goodix GT968)?

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