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Black GUI-Area #9

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rellla opened this Issue Mar 21, 2013 · 3 comments

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rellla commented Mar 21, 2013

Watching TV is ok. But when the left menu with channels etc. should pop in, xbmc resizes the video area, but GUI-area stays black. GUI-Sounds are hearable.
The same if you go back to the home screen (blindly), you get a black screen. It seems, that the GUI doesn't re-init right.
Maybe that has something to do with the changed mali-headers or binarys and/or the "mali_native_window"?

@rellla rellla closed this Apr 16, 2013

@rellla rellla reopened this Apr 16, 2013

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rellla commented May 17, 2013

As Mantichora mentioned in irc, there is some workaround for this problem:
"echo 0 > /sys/devices/platform/disp/graphics/fb0/blank" should bring display back. Putting this in a 5min-cronjob is an ugly workaround, until the issue is found. May be we have to look into https://github.com/linux-sunxi/linux-sunxi/blob/sunxi-3.0/drivers/video/sunxi/disp/dev_fb.c#L1290 since i can't remember to have had this problem with kernel versions of the last year.

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rellla commented May 17, 2013

There are the following workarounds to fix it:

  1. "echo 0 > /sys/devices/platform/disp/graphics/fb0/blank" at runtime
    or
  2. FB blanking can be disabled at boottime by adding the following to /etc/inittab :
    tty1::sysinit:echo -e '\033[9;0]'

In addition it should be investigated, how xbmc itself can reactivate fb.

@rellla rellla closed this May 17, 2013

@rellla rellla reopened this May 20, 2013

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rellla commented May 20, 2013

Ignore the above! The issue is kernel based:

Adding "consoleblank=0" to the kernel arguments in uEnv.txt or boot.cmd fixes it.

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