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[Bug 1571416] Re: System freezes shortly after reaching the desktop (Ubuntu MATE 16.04, PowerPC)


Did this issue start happening after an update/upgrade?  Was there a
prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.6 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:

Once testing of the upstream kernel is complete, please mark this bug as

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc4-wily/

** Changed in: linux (Ubuntu)
   Importance: Undecided => High

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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  System freezes shortly after reaching the desktop (Ubuntu MATE 16.04,

Status in linux package in Ubuntu:

Bug description:
  The freeze happens every time unless I use "radeon.agpmode=-1" as a
  kernel parameter.

  Affected machines:
  PowerBook G4 5,6 + PowerMac G5 7,3 (w. "ATI Radeon 9600 AP (AGP)".

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-powerpc-smp 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-powerpc-smp 4.4.6
  Uname: Linux 4.4.0-18-powerpc-smp ppc
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: powerpc
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CasperVersion: 1.373
  CurrentDesktop: MATE
  Date: Sun Apr 17 21:08:40 2016
   lo        no wireless extensions.

   enP2p36s15f0  no wireless extensions.
  LiveMediaBuild: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Release powerpc (20160417.1)
   Socket 0:
     no product info available
   Socket 0:
     no card
   PATH=(custom, no user)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: ro ramdisk_size=1048576 file=/cdrom/preseed/username.seed boot=casper quiet --- radeon.agpmode=-1
   linux-restricted-modules-4.4.0-18-powerpc-smp N/A
   linux-backports-modules-4.4.0-18-powerpc-smp  N/A
   linux-firmware                                1.157
   0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)

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