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[Philip Gemmell <philip.gemmell@xxxxxxxxx>]

Thanks, that fixed that problem - I installed fglrx-updates/wily-
proposed fglrx-updates-core/wily-proposed fglrx-amdcccle-updates/wily-
proposed without any further problems, and also reinstalled lightdm,
xorg and ubuntu-desktop. Unfortunately, this is leading to a blank
screen on start-up - I can return to tty if I drop into recovery, then
into root to purge the packages again before restarting.

I've got a Radeon R9 285 graphics card - are there any other potential
fixes I could try to apply, or should I roll back to a 3.x kernel?

Thanks for the help thus far - I'm glad to know this is being looked at!

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to fglrx-installer in Ubuntu.
https://bugs.launchpad.net/bugs/1493888

Title:
  FGLRX incompatible with gcc 5

Status in Release Notes for Ubuntu:
  Fix Released
Status in fglrx-installer package in Ubuntu:
  Fix Released
Status in fglrx-installer-updates package in Ubuntu:
  Fix Released
Status in fglrx-installer source package in Wily:
  Fix Committed
Status in fglrx-installer-updates source package in Wily:
  Fix Committed

Bug description:
  SRU Request:

  [Impact]

  The fglrx driver is not compatible with gcc 5.x. This causes the
  kernel module to crash on initialisation. As a result, users will boot
  into a black screen, as X will fail (except on Intel+AMD hybrid
  systems, where intel is used).

  [Test Case]
  1. Either install (or upgrade to) Ubuntu 15.10 and fglrx
  2. Reboot
  3. Check the display, and the output of the "dmesg | grep fglrx" command (to see the actual crash)

  Expected results: the system should be able to start X correctly.

  Actual results:
  The kernel module fails and X doesn't start.

  [Regression Potential]
  Low. Forcing fglrx to use gcc 4.9 is only a temporary workaround, and will be replaced with the proper fix once AMD makes it available.


  __________________________________________________________________________

  With a R9 280 and FGLRX on ubuntu 15.10 the graphics lock up. I am
  able to SSH into the machine. I booted the older kernel
  (4.1.0-3-generic) and it works with FGLRX. After purging FGLRX and
  using xserver-xorg-video-radeon I am able to get the graphics working,
  but even it has issues with my display port (The DVI ports are working
  correctly).

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: fglrx (not installed)
  ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0
  Uname: Linux 4.2.0-7-generic x86_64
  ApportVersion: 2.18-0ubuntu9
  Architecture: amd64
  Date: Wed Sep  9 09:29:54 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2011-01-07 (1705 days ago)
  InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  ProcEnviron:
   LANGUAGE=
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: fglrx-installer
  UpgradeStatus: Upgraded to wily on 2015-08-18 (21 days ago)

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