meta-yocto-bsp: workaround the X malfunction on beaglebone

After the change in kernel commit a291b6b3d287 ("ARM: dts:
am335x-boneblack: Add blue-and-red-wiring -property to LCDC node"),
the pixel format we support for 32bit bpp has been changed from
XRGB8888 to XBGR8888. But the fbdev created by modesetting driver use
the XRGB8888 format by default, this causes the X malfunction. There is
no easy way to adjust the pixel format of the fbdev created by the
modesetting driver. So we create a xorg.conf to use the 16bit bpp to
work around this issue.

[YOCTO #11267]

(From meta-yocto rev: 1ef8a9584298a8745a28c0c92fa3ecbf92ffe494)

Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Kevin Hao 2017-04-08 21:45:59 +08:00 committed by Richard Purdie
parent b06f7cbb94
commit e7434c17b4
1 changed files with 20 additions and 0 deletions

View File

@ -0,0 +1,20 @@
Section "Monitor"
Identifier "Builtin Default Monitor"
EndSection
Section "Device"
Identifier "Builtin Default fbdev Device 0"
Driver "modesetting"
EndSection
Section "Screen"
Identifier "Builtin Default fbdev Screen 0"
DefaultDepth 16
Device "Builtin Default fbdev Device 0"
Monitor "Builtin Default Monitor"
EndSection
Section "ServerLayout"
Identifier "Builtin Default Layout"
Screen "Builtin Default fbdev Screen 0"
EndSection