tiomap-dev team mailing list archive

[Sebastien JAN <s-jan@xxxxxx>]

Was anyone able to test reverting to the previous fifo setting using the buffer_state sysfs entry added by this patch-set? 
(I'd like to be sure that we can use this feature to revert back to the standard setting if needed + would be curious of the impact of this fifo trick on the sync issues)

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omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX
https://bugs.launchpad.net/bugs/653002
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Developers, which is a subscriber of a duplicate bug (655746).

Status in “linux-ti-omap4” package in Ubuntu: In Progress

Bug description:
Platform: Panda board, 8 layers.
Processor: TI OMAP4

Symptom:  The screen will go black randomly - even when there is activity - and doesn't come back.  The following output can be found on the serial console (when enabled) and the log file:

 [  404.169006] omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX

To recover the screen, change to another console and get back to tty7: CTRL + ALT + F1 followed by CTRL + ALT + F7

This is a known problem that is currently being addressed by TI.