Ubuntu
pixman package

in 8.10 Gnome does not launch apps on iBook G3

Bug #293702 reported by Henry Higgins on 2008-11-04

Affects		Status	Importance	Assigned to	Milestone
	pixman (Ubuntu)	Fix Released	Medium	Dustin Kirkland 

Bug Description

After doing a standard install of Ubuntu 8.10 on an iBook G3, it was impossible to launch apps in the Gnome desktop environment. Trying to launch apps from menus resulted in a spinning cursor, then nothing. When trying to launch an app from a terminal, an "illegal Instruction" message was received.

A solution was proposed in this thread on the Ubuntu forums: http://ubuntuforums.org/showthread.php?t=961107

[Jumpin Jack Flash]: "Ok it was the libpixman package, in the configure.ac it was doing a check for altivec that passed on the G3 so I hardcoded the VMX flags to -mno-altivec and rebuilt."

I attach the version of the libpixman package that Jumpin Jack Flash edited. Installing this version on a G3 iBook cures the problem.

Revision history for this message

Henry Higgins (launay-cook) wrote on 2008-11-04:

libpixman-1-0_0.12.0-1_powerpc.deb Edit (83.8 KiB, application/x-debian-package)

Revision history for this message

Benjamin Herrenschmidt (benh-kernel) wrote on 2008-11-25:

The proper fix is:

http://cgit.freedesktop.org/pixman/commit/?id=cd2a79ab81045aa7e35bc901081e57dea6ac4845

Revision history for this message

Dustin Kirkland  (kirkland) wrote on 2008-11-25:

pixman.debdiff Edit (2.5 KiB, text/plain)

I packaged this fix, as a debdiff.

To test the build and resulting package, please do the following on either an Intrepid or Jaunty system:

$ sudo apt-get install devscripts fakeroot automake autoconf libtool pkg-config
$ mkdir pixman
$ cd pixman
$ dget http://people.ubuntu.com/~kirkland/pixman/pixman_0.12.0-1ubuntu1.dsc
$ dpkg-source -x pixman_0.12.0-1ubuntu1.dsc
$ sudo apt-get build-dep pixman
$ cd pixman-0.12.0/
$ debuild
$ cd ..
$ dpkg -i <whatever>.deb

Or, you can try the powerpc packages I built at:
* http://people.ubuntu.com/~kirkland/pixman/

:-Dustin

Changed in pixman:
assignee:	nobody → kirkland
importance:	Undecided → Medium
status:	New → In Progress

Revision history for this message

Bryce Harrington (bryce) wrote on 2008-11-26:

Thanks Dustin.

Btw, we try to do code changes with a patch system. Since there wasn't one for pixman, I redid your debdiff to use one. Hopefully that's cool.

I've uploaded it to Jaunty. Please validate it there, and if it's good go ahead and put in an SRU for Intrepid. Probably the same debdiff can be used, just s/jaunty/intrepid-proposed/.

Changed in pixman:
status:	In Progress → Fix Committed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2008-11-26:

This bug was fixed in the package pixman - 0.12.0-1ubuntu1

---------------
pixman (0.12.0-1ubuntu1) jaunty; urgency=low

  [Dustin Kirkland]
  * pixman/pixman-pict.c: applying upstream patch, less fragile Linux
    altivec detection (LP: #293702)
    http://cgit.freedesktop.org/pixman/commit/?id=cd2a79ab81045aa7e35bc901081e57dea6ac4845

  [Bryce Harrington]
  * Added quilt patch system. Rejiggered Dustin's code change into a quilt patch.
  * Modify Maintainer value to match the DebianMaintainerField
    specification.

-- Bryce Harrington <email address hidden> Tue, 25 Nov 2008 18:08:34 -0800