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[Bug 653002] Re: omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX

To: tiomap-dev@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <653002@xxxxxxxxxxxxxxxxxx>
Date: Mon, 03 Jan 2011 10:21:48 -0000
Reply-to: Bug 653002 <653002@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Branch linked: lp:ubuntu/maverick-proposed/linux-ti-omap4

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You received this bug notification because you are a member of TI OMAP
Developers, which is a subscriber of a duplicate bug (655746).
https://bugs.launchpad.net/bugs/653002

Title:
  omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX

Status in “linux-ti-omap4” package in Ubuntu:
  In Progress
Status in “linux-ti-omap4” source package in Maverick:
  Fix Committed
Status in “linux-ti-omap4” source package in Natty:
  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.