Comment # 50 on bug 1140581 from Chaoyang Qin

(In reply to Nicolas Patricio Saenz Julienne from comment #49)
> (In reply to Chaoyang Qin from comment #48)
> > (In reply to Nicolas Patricio Saenz Julienne from comment #46)
> > > Did you have the HDMI port connected while testing? If yes could you rest
> > > without it, and provide the X11 logs.
> > 
> > Sorry for delay...
> 
> No worries :)
> 
> > new log attached.
> 
> Just to be clear this was with '/usr/share/X11/xorg.conf.d/99-fbdev.conf'
> enabled right?

Yep..
conf contains:
suse-pi:/usr/share/X11/xorg.conf.d # cat 99-fbdev.conf
Section "Device"
  Identifier "myfb"
  Driver "fbdev"
  Option "fbdev" "/dev/fb1"
EndSection