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[DustWolf <dustwolfy@xxxxxxxxx>]

For anyone else experiencing this issue I would like to mention adding these options solved issues:
Option "UseFBDev" "false"
Option "NoInt10" "true"

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https://bugs.launchpad.net/bugs/1023975

Title:
  [PPC] [R128] - AGP V2 device into 0x mode - Xorg Freeze

Status in xserver-xorg-video-r128 package in Ubuntu:
  New

Bug description:
  Dear maintainer,

  AGP device is set to "0x" mode resulting in extremely slow X. Could
  easily be mistaken for a "freeze" or "hang" as mouse moves minutes
  after physically moving it.

  Replicates always. Repeats on two machines with identical Video Card. 
  No change from Ubuntu 12.04 PPC 3.2.0-23 through 3.2.0-26
  Problem persists before and after downgrading Mesa to 7.11

  Workarounds found:
  Disable DRI or
  ForcePCIMode

  For selfish concerns, I would like to be able to use AGP aperture to take advantage of System RAM. This is ignored when PCI mode is forced.
  Beyond that, the nature of the problem results in initial install booting to "hung" or extremely slow X since DRI is enabled by default.

  Possibly relevant previously proposed patch:
  http://lists.freedesktop.org/archives/dri-
  devel/2011-November/016101.html

  Attempts that did not help:
  install linux-firmware-nonfree
  force different AGPMode

  Forum discussing reference:
  http://ubuntuforums.org/showthread.php?t=2013307

  Summary of relevant (Speculated) messages:
  dmesg | grep AGP
  [    0.585628] Linux agpgart interface v0.103
  [   29.655997] agpgart-uninorth 0000:00:0b.0: Apple UniNorth/Pangea chipset
  [   29.658518] agpgart-uninorth 0000:00:0b.0: configuring for size idx: 64
  [   29.736441] agpgart-uninorth 0000:00:0b.0: AGP aperture is 256M @ 0x0
  [   43.502188] agpgart: Couldn't find an AGP VGA controller.
  [   43.502261] agpgart-uninorth 0000:00:0b.0: putting AGP V2 device into 0x mode

  dmesg | grep -i vga
  [    0.047384] vgaarb: loaded
  [   32.545041] vgaarb: this pci device is not a vga device
  [   33.354151] vgaarb: this pci device is not a vga device
  [   33.964274] agpgart: Couldn't find an AGP VGA controller.

  From Xorg.0.log
  [   265.172] (EE) R128(0): R128CCEWaitForIdle: (DEBUG) CCE idle took i = 1025
  [   265.172] (EE) R128(0): Idle timed out, resetting engine...
  [   282.882] (EE) R128(0): R128CCEWaitForIdle: (DEBUG) CCE idle took i = 1025
  [   282.882] (EE) R128(0): Idle timed out, resetting engine...
  [   298.704] (EE) R128(0): R128CCEWaitForIdle: (DEBUG) CCE idle took i = 1025
  [   298.705] (EE) R128(0): Idle timed out, resetting engine...

  EndSummary

  Thanks in advance.

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