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[Fang Bao <1046226@xxxxxxxxxxxxxxxxxx>]

I flashed the bootloader again as following:

$ sudo flash-kernel --update-bootloader
Using u-boot partition: /dev/mmcblk0p1
/usr/lib/u-boot/omap4_panda/MLO is already installed in the boot partition.
/usr/lib/u-boot/omap4_panda/u-boot.bin is already installed in the boot partition.
Creating backups of boot files ... done.
Generating kernel u-boot image... done.
Generating Initramfs u-boot image... done.
Generating u-boot configuration from /boot/boot.script... done.

But in next booting, there is no change. The kernel command line read
from dmesg is same:

[    0.000000] Kernel command line: ro elevator=noop vram=40M
mem=456M@0x80000000 mem=512M@0xA0000000 root=UUID=4dd037b6-24e8-4602
-9caa-f13574fb6709 fixrtc quiet splash

And the hw codec doesn't work also.

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https://bugs.launchpad.net/bugs/1046226

Title:
   OMAP4 Panda: HW MM h/w acceleration doesn't work after installed from
  PPA Update September 2012

Status in OMAP4 Ubuntu Multimedia addons:
  New

Bug description:
  Hi,

  I'm running the official Ubuntu 1204 image on Pandaboard downloaded
  from https://wiki.ubuntu.com/ARM/OMAP/.

  Last month, the HW MM h/w acceleration works on PPA Update August 2012.
  But today HW MM h/w acceleration doesn't work after updating from PPA Update September 2012.
  When running the totem to play a H264 1080p stream, there is an error:

  libdce.c: 437:    init    info: attempting to open X11 connection
  libdce.c: 515:    init    error: could not get plugin ioctl base: -22

  The stream is played very slow because gstreamer is using software
  h264 decoder.

  I updated system following the instruction
  (https://groups.google.com/forum/#!topic/pandaboard/ZnFoQkvD3Pg)
  without skipping a step.

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