RE: LyX crashes in Ubuntu 9.04

[Vincent van Ravesteijn - TNW]

 
Hi! I have the following Problem:
LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
This only happens if showing graphics is enabled. How can I solve this
problem?
Thank you very much!

There is a bug in qt4.5.0 that might crash LyX when you try to scale down a 
figure on screen to 50% and the figure has an odd number of lines.

Please upgrade to qt4.5.1, or change the 50% into e.g. 51%.

see also: http://www.lyx.org/trac/ticket/5957

Vincent

Re: LyX crashes in Ubuntu 9.04

[Michael Gasperl]

2009/6/11 John McCabe-Dansted gma...@gmail.com:
 2009/6/11 Thomas Løcke thomas.granv...@gmail.com

 On Thu, Jun 11, 2009 at 6:25 AM, Michael Gasperlmich...@gasperl.at
 wrote:
  Hi! I have the following Problem:
  LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
  This only happens if showing graphics is enabled. How can I solve this
  problem?
  Thank you very much!

 This also happpened to me, on Slackware 12.1,

 I fixed it by updating my QT4 library from version 4.4.3 to version
 4.5.1, and then recompile LyX against that.

   Heh, I upgraded my QT to QT4.5.1. Maybe thats  why I cannot reproduce.

   I upgraded this way. (NOTE: this is not supported. If  you use this, be
 careful, and make backups)

   first I did

 sudo aptitude update
 sudo aptitude upgrade

   to make sure I was up-to-date

   Then I added

 deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

   to /etc/apt/sources.list (you may want to replace the http:// bit with
 your local mirror)

   added the following to /etc/apt/preferences

 Package: *
 Pin: release a=jaunty
 in-Priority: 700

 Package: *
 Pin: release a=karmic
 Pin-Priority: 600

 Package: libqt4*
 Pin: release a=karmic
 Pin-Priority: 800

 Package: qt4*
 Pin: release a=karmic
 Pin-Priority: 800

   then I did

 sudo aptitude update
 sudo aptitude upgrade

    IMPORTANT: make sure there are no packages without qt4 in
    their name being upgraded. Otherwise you could hose your system.

    Then I removed the

 deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

    Line from /etc/apt/sources.list

 --
 John C. McCabe-Dansted
 PhD Student
 University of Western Australia

==

Thank you very much for your afford!! I compiled LyX 1.6.3 as
described, worked well. But the error was still there, didn't change
anything. Then I upgraded to QT 4.5.1 -- this was the solution!

I upgraded QT4 in an other way. In Ubuntu I added
deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe
To synaptic / package sources

Then I created the file (sudo nautilus)
/etc/apt/preferences
and added the from John C. McCabe-Dansted described lines:

Package: *
Pin: release a=jaunty
in-Priority: 700

Package: *
Pin: release a=karmic
Pin-Priority: 600

Package: libqt4*
Pin: release a=karmic
Pin-Priority: 800

Package: qt4*
Pin: release a=karmic
Pin-Priority: 800

[perhaps it would work without preferences?]

Then went to synaptic and selected
libqt4-core
for updating, synaptic automatically selected the rest and made an update

Finally i deactivated the
deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe
from sources.

I chose this way, because the first described way with update/upgrade
didn't work on my pc.

Thank you all for solving the problem!
Michael

Re: LyX crashes in Ubuntu 9.04

[John McCabe-Dansted]

2009/6/11 Michael Gasperl mich...@gasperl.at

 Package: *
 Pin: release a=jaunty
 in-Priority: 700

 Package: *
 Pin: release a=karmic
 Pin-Priority: 600

 Package: libqt4*
 Pin: release a=karmic
 Pin-Priority: 800

 Package: qt4*
 Pin: release a=karmic
 Pin-Priority: 800

 [perhaps it would work without preferences?]


Well the conventional wisdom would be that without the preferences file,
apt-get would try to upgrade all your files to a completely different (and
Alpha quality) version of Ubuntu. If you let apt-get do this, this would
probably break your system horribly... However, in this case it would
probably be safe to do with without the preferences file for two reasons:
1) The Ubuntu GUI Upgrade Managers would allow you to uncheck the unwanted
upgrades anyway.
2) We are removing the karmic sources afterwards anyway, so it would be
unlikely that Ubuntu would install these unwanted updates later.

I chose this way, because the first described way with update/upgrade
 didn't work on my pc.


I must have made a mistake, since it should work on any 9.04 Ubuntu system.
Oh well, your way seems more user friendly anyway.

-- 
John C. McCabe-Dansted
PhD Student
University of Western Australia

RE: LyX crashes in Ubuntu 9.04

[Vincent van Ravesteijn - TNW]

 
Hi! I have the following Problem:
LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
This only happens if showing graphics is enabled. How can I solve this
problem?
Thank you very much!

There is a bug in qt4.5.0 that might crash LyX when you try to scale down a 
figure on screen to 50% and the figure has an odd number of lines.

Please upgrade to qt4.5.1, or change the 50% into e.g. 51%.

see also: http://www.lyx.org/trac/ticket/5957

Vincent

Re: LyX crashes in Ubuntu 9.04

[Michael Gasperl]

2009/6/11 John McCabe-Dansted gma...@gmail.com:
 2009/6/11 Thomas Løcke thomas.granv...@gmail.com

 On Thu, Jun 11, 2009 at 6:25 AM, Michael Gasperlmich...@gasperl.at
 wrote:
  Hi! I have the following Problem:
  LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
  This only happens if showing graphics is enabled. How can I solve this
  problem?
  Thank you very much!

 This also happpened to me, on Slackware 12.1,

 I fixed it by updating my QT4 library from version 4.4.3 to version
 4.5.1, and then recompile LyX against that.

   Heh, I upgraded my QT to QT4.5.1. Maybe thats  why I cannot reproduce.

   I upgraded this way. (NOTE: this is not supported. If  you use this, be
 careful, and make backups)

   first I did

 sudo aptitude update
 sudo aptitude upgrade

   to make sure I was up-to-date

   Then I added

 deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

   to /etc/apt/sources.list (you may want to replace the http:// bit with
 your local mirror)

   added the following to /etc/apt/preferences

 Package: *
 Pin: release a=jaunty
 in-Priority: 700

 Package: *
 Pin: release a=karmic
 Pin-Priority: 600

 Package: libqt4*
 Pin: release a=karmic
 Pin-Priority: 800

 Package: qt4*
 Pin: release a=karmic
 Pin-Priority: 800

   then I did

 sudo aptitude update
 sudo aptitude upgrade

    IMPORTANT: make sure there are no packages without qt4 in
    their name being upgraded. Otherwise you could hose your system.

    Then I removed the

 deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

    Line from /etc/apt/sources.list

 --
 John C. McCabe-Dansted
 PhD Student
 University of Western Australia

==

Thank you very much for your afford!! I compiled LyX 1.6.3 as
described, worked well. But the error was still there, didn't change
anything. Then I upgraded to QT 4.5.1 -- this was the solution!

I upgraded QT4 in an other way. In Ubuntu I added
deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe
To synaptic / package sources

Then I created the file (sudo nautilus)
/etc/apt/preferences
and added the from John C. McCabe-Dansted described lines:

Package: *
Pin: release a=jaunty
in-Priority: 700

Package: *
Pin: release a=karmic
Pin-Priority: 600

Package: libqt4*
Pin: release a=karmic
Pin-Priority: 800

Package: qt4*
Pin: release a=karmic
Pin-Priority: 800

[perhaps it would work without preferences?]

Then went to synaptic and selected
libqt4-core
for updating, synaptic automatically selected the rest and made an update

Finally i deactivated the
deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe
from sources.

I chose this way, because the first described way with update/upgrade
didn't work on my pc.

Thank you all for solving the problem!
Michael

Re: LyX crashes in Ubuntu 9.04

[John McCabe-Dansted]

2009/6/11 Michael Gasperl mich...@gasperl.at

 Package: *
 Pin: release a=jaunty
 in-Priority: 700

 Package: *
 Pin: release a=karmic
 Pin-Priority: 600

 Package: libqt4*
 Pin: release a=karmic
 Pin-Priority: 800

 Package: qt4*
 Pin: release a=karmic
 Pin-Priority: 800

 [perhaps it would work without preferences?]


Well the conventional wisdom would be that without the preferences file,
apt-get would try to upgrade all your files to a completely different (and
Alpha quality) version of Ubuntu. If you let apt-get do this, this would
probably break your system horribly... However, in this case it would
probably be safe to do with without the preferences file for two reasons:
1) The Ubuntu GUI Upgrade Managers would allow you to uncheck the unwanted
upgrades anyway.
2) We are removing the karmic sources afterwards anyway, so it would be
unlikely that Ubuntu would install these unwanted updates later.

I chose this way, because the first described way with update/upgrade
 didn't work on my pc.


I must have made a mistake, since it should work on any 9.04 Ubuntu system.
Oh well, your way seems more user friendly anyway.

-- 
John C. McCabe-Dansted
PhD Student
University of Western Australia

RE: LyX crashes in Ubuntu 9.04

[Vincent van Ravesteijn - TNW]

 
>Hi! I have the following Problem:
>LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
>This only happens if showing graphics is enabled. How can I solve this
>problem?
>Thank you very much!

There is a bug in qt4.5.0 that might crash LyX when you try to scale down a 
figure on screen to 50% and the figure has an odd number of lines.

Please upgrade to qt4.5.1, or change the 50% into e.g. 51%.

see also: http://www.lyx.org/trac/ticket/5957

Vincent

Re: LyX crashes in Ubuntu 9.04

[Michael Gasperl]

2009/6/11 John McCabe-Dansted :
> 2009/6/11 Thomas Løcke 
>>
>> On Thu, Jun 11, 2009 at 6:25 AM, Michael Gasperl
>> wrote:
>> > Hi! I have the following Problem:
>> > LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
>> > This only happens if showing graphics is enabled. How can I solve this
>> > problem?
>> > Thank you very much!
>>
>> This also happpened to me, on Slackware 12.1,
>>
>> I fixed it by updating my QT4 library from version 4.4.3 to version
>> 4.5.1, and then recompile LyX against that.
>
>   Heh, I upgraded my QT to QT4.5.1. Maybe thats  why I cannot reproduce.
>
>   I upgraded this way. (NOTE: this is not supported. If  you use this, be
> careful, and make backups)
>
>   first I did
>
> sudo aptitude update
> sudo aptitude upgrade
>
>   to make sure I was up-to-date
>
>   Then I added
>
> deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe
>
>   to /etc/apt/sources.list (you may want to replace the http:// bit with
> your local mirror)
>
>   added the following to /etc/apt/preferences
>
> Package: *
> Pin: release a=jaunty
> in-Priority: 700
>
> Package: *
> Pin: release a=karmic
> Pin-Priority: 600
>
> Package: libqt4*
> Pin: release a=karmic
> Pin-Priority: 800
>
> Package: qt4*
> Pin: release a=karmic
> Pin-Priority: 800
>
>   then I did
>
> sudo aptitude update
> sudo aptitude upgrade
>
>    IMPORTANT: make sure there are no packages without qt4 in
>    their name being upgraded. Otherwise you could hose your system.
>
>    Then I removed the
>
> deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe
>
>    Line from /etc/apt/sources.list
>
> --
> John C. McCabe-Dansted
> PhD Student
> University of Western Australia
>
==

Thank you very much for your afford!! I compiled LyX 1.6.3 as
described, worked well. But the error was still there, didn't change
anything. Then I upgraded to QT 4.5.1 --> this was the solution!

I upgraded QT4 in an other way. In Ubuntu I added
deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe
To synaptic / package sources

Then I created the file (sudo nautilus)
/etc/apt/preferences
and added the from John C. McCabe-Dansted described lines:

Package: *
Pin: release a=jaunty
in-Priority: 700

Package: *
Pin: release a=karmic
Pin-Priority: 600

Package: libqt4*
Pin: release a=karmic
Pin-Priority: 800

Package: qt4*
Pin: release a=karmic
Pin-Priority: 800

[perhaps it would work without preferences?]

Then went to synaptic and selected
libqt4-core
for updating, synaptic automatically selected the rest and made an update

Finally i deactivated the
deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe
from sources.

I chose this way, because the first described way with update/upgrade
didn't work on my pc.

Thank you all for solving the problem!
Michael

Re: LyX crashes in Ubuntu 9.04

[John McCabe-Dansted]

2009/6/11 Michael Gasperl 

> Package: *
> Pin: release a=jaunty
> in-Priority: 700
>
> Package: *
> Pin: release a=karmic
> Pin-Priority: 600
>
> Package: libqt4*
> Pin: release a=karmic
> Pin-Priority: 800
>
> Package: qt4*
> Pin: release a=karmic
> Pin-Priority: 800
>
> [perhaps it would work without preferences?]


Well the conventional wisdom would be that without the preferences file,
apt-get would try to upgrade all your files to a completely different (and
Alpha quality) version of Ubuntu. If you let apt-get do this, this would
probably break your system horribly... However, in this case it would
probably be safe to do with without the preferences file for two reasons:
1) The Ubuntu GUI Upgrade Managers would allow you to uncheck the unwanted
upgrades anyway.
2) We are removing the karmic sources afterwards anyway, so it would be
unlikely that Ubuntu would install these unwanted updates later.

I chose this way, because the first described way with update/upgrade
> didn't work on my pc.


I must have made a mistake, since it should work on any 9.04 Ubuntu system.
Oh well, your way seems more user friendly anyway.

-- 
John C. McCabe-Dansted
PhD Student
University of Western Australia

Re: LyX crashes in Ubuntu 9.04

[John McCabe-Dansted]

2009/6/11 Michael Gasperl mich...@gasperl.at

 Hi! I have the following Problem:
 LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
 This only happens if showing graphics is enabled. How can I solve this
 problem?
 Thank you very much!


I cannot reproduce the problem.

1) Are you using 32bit or 64bit Ubuntu?
2) Can you send a document that reproduces the problem?

It would also help if you could run LyX in a debugger.

Either install a later version of LyX from source (this may fix the problem
anyway) or install the Ubuntu ddebs. Compiling sounds tricky, but the
following commands should suffice in a terminal

sudo aptitude build-dep lyx
cd
wget -c ftp://ftp.lyx.org/pub/lyx/stable/1.6.x/lyx-1.6.3.tar.bz2
tar -jxf lyx-1.6.3.tar.bz2
cd lyx-1.6.3
./configure  make
gdb src/lyx
run

Cause LyX to crash, and then type

bt

To get the backtrace, and then cut-and-paste it here.

Feel free to discuss any problems here, or directly to me.

-- 
John C. McCabe-Dansted
PhD Student
University of Western Australia

Re: LyX crashes in Ubuntu 9.04

[Thomas Løcke]

On Thu, Jun 11, 2009 at 6:25 AM, Michael Gasperlmich...@gasperl.at wrote:
 Hi! I have the following Problem:
 LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
 This only happens if showing graphics is enabled. How can I solve this
 problem?
 Thank you very much!

This also happpened to me, on Slackware 12.1,

I fixed it by updating my QT4 library from version 4.4.3 to version
4.5.1, and then recompile LyX against that.

I've no idea why this helped, but at least LyX doesn't crash anymore.

It can't hurt trying,

:o)
/Thomas

Re: LyX crashes in Ubuntu 9.04

[John McCabe-Dansted]

2009/6/11 Thomas Løcke thomas.granv...@gmail.com

 On Thu, Jun 11, 2009 at 6:25 AM, Michael Gasperlmich...@gasperl.at
 wrote:
  Hi! I have the following Problem:
  LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
  This only happens if showing graphics is enabled. How can I solve this
  problem?
  Thank you very much!

 This also happpened to me, on Slackware 12.1,

 I fixed it by updating my QT4 library from version 4.4.3 to version
 4.5.1, and then recompile LyX against that.


  Heh, I upgraded my QT to QT4.5.1. Maybe thats  why I cannot reproduce.

  I upgraded this way. (NOTE: this is not supported. If  you use this, be
careful, and make backups)

  first I did

sudo aptitude update
sudo aptitude upgrade

  to make sure I was up-to-date

  Then I added

deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

  to /etc/apt/sources.list (you may want to replace the http:// bit with
your local mirror)

  added the following to /etc/apt/preferences

Package: *
Pin: release a=jaunty
in-Priority: 700

Package: *
Pin: release a=karmic
Pin-Priority: 600

Package: libqt4*
Pin: release a=karmic
Pin-Priority: 800

Package: qt4*
Pin: release a=karmic
Pin-Priority: 800

  then I did

sudo aptitude update
sudo aptitude upgrade

   IMPORTANT: make sure there are no packages without qt4 in
   their name being upgraded. Otherwise you could hose your system.

   Then I removed the

deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

   Line from /etc/apt/sources.list

-- 
John C. McCabe-Dansted
PhD Student
University of Western Australia

Re: LyX crashes in Ubuntu 9.04

[John McCabe-Dansted]

2009/6/11 Michael Gasperl mich...@gasperl.at

 Hi! I have the following Problem:
 LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
 This only happens if showing graphics is enabled. How can I solve this
 problem?
 Thank you very much!


I cannot reproduce the problem.

1) Are you using 32bit or 64bit Ubuntu?
2) Can you send a document that reproduces the problem?

It would also help if you could run LyX in a debugger.

Either install a later version of LyX from source (this may fix the problem
anyway) or install the Ubuntu ddebs. Compiling sounds tricky, but the
following commands should suffice in a terminal

sudo aptitude build-dep lyx
cd
wget -c ftp://ftp.lyx.org/pub/lyx/stable/1.6.x/lyx-1.6.3.tar.bz2
tar -jxf lyx-1.6.3.tar.bz2
cd lyx-1.6.3
./configure  make
gdb src/lyx
run

Cause LyX to crash, and then type

bt

To get the backtrace, and then cut-and-paste it here.

Feel free to discuss any problems here, or directly to me.

-- 
John C. McCabe-Dansted
PhD Student
University of Western Australia

Re: LyX crashes in Ubuntu 9.04

[Thomas Løcke]

On Thu, Jun 11, 2009 at 6:25 AM, Michael Gasperlmich...@gasperl.at wrote:
 Hi! I have the following Problem:
 LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
 This only happens if showing graphics is enabled. How can I solve this
 problem?
 Thank you very much!

This also happpened to me, on Slackware 12.1,

I fixed it by updating my QT4 library from version 4.4.3 to version
4.5.1, and then recompile LyX against that.

I've no idea why this helped, but at least LyX doesn't crash anymore.

It can't hurt trying,

:o)
/Thomas

Re: LyX crashes in Ubuntu 9.04

[John McCabe-Dansted]

2009/6/11 Thomas Løcke thomas.granv...@gmail.com

 On Thu, Jun 11, 2009 at 6:25 AM, Michael Gasperlmich...@gasperl.at
 wrote:
  Hi! I have the following Problem:
  LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
  This only happens if showing graphics is enabled. How can I solve this
  problem?
  Thank you very much!

 This also happpened to me, on Slackware 12.1,

 I fixed it by updating my QT4 library from version 4.4.3 to version
 4.5.1, and then recompile LyX against that.


  Heh, I upgraded my QT to QT4.5.1. Maybe thats  why I cannot reproduce.

  I upgraded this way. (NOTE: this is not supported. If  you use this, be
careful, and make backups)

  first I did

sudo aptitude update
sudo aptitude upgrade

  to make sure I was up-to-date

  Then I added

deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

  to /etc/apt/sources.list (you may want to replace the http:// bit with
your local mirror)

  added the following to /etc/apt/preferences

Package: *
Pin: release a=jaunty
in-Priority: 700

Package: *
Pin: release a=karmic
Pin-Priority: 600

Package: libqt4*
Pin: release a=karmic
Pin-Priority: 800

Package: qt4*
Pin: release a=karmic
Pin-Priority: 800

  then I did

sudo aptitude update
sudo aptitude upgrade

   IMPORTANT: make sure there are no packages without qt4 in
   their name being upgraded. Otherwise you could hose your system.

   Then I removed the

deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

   Line from /etc/apt/sources.list

-- 
John C. McCabe-Dansted
PhD Student
University of Western Australia

Re: LyX crashes in Ubuntu 9.04

[John McCabe-Dansted]

2009/6/11 Michael Gasperl 

> Hi! I have the following Problem:
> LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
> This only happens if showing graphics is enabled. How can I solve this
> problem?
> Thank you very much!


I cannot reproduce the problem.

1) Are you using 32bit or 64bit Ubuntu?
2) Can you send a document that reproduces the problem?

It would also help if you could run LyX in a debugger.

Either install a later version of LyX from source (this may fix the problem
anyway) or install the Ubuntu ddebs. Compiling sounds tricky, but the
following commands should suffice in a terminal

sudo aptitude build-dep lyx
cd
wget -c ftp://ftp.lyx.org/pub/lyx/stable/1.6.x/lyx-1.6.3.tar.bz2
tar -jxf lyx-1.6.3.tar.bz2
cd lyx-1.6.3
./configure && make
gdb src/lyx
run

Cause LyX to crash, and then type

bt

To get the backtrace, and then cut-and-paste it here.

Feel free to discuss any problems here, or directly to me.

-- 
John C. McCabe-Dansted
PhD Student
University of Western Australia

Re: LyX crashes in Ubuntu 9.04

[Thomas Løcke]

On Thu, Jun 11, 2009 at 6:25 AM, Michael Gasperl wrote:
> Hi! I have the following Problem:
> LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
> This only happens if showing graphics is enabled. How can I solve this
> problem?
> Thank you very much!

This also happpened to me, on Slackware 12.1,

I fixed it by updating my QT4 library from version 4.4.3 to version
4.5.1, and then recompile LyX against that.

I've no idea why this helped, but at least LyX doesn't crash anymore.

It can't hurt trying,

:o)
/Thomas

Re: LyX crashes in Ubuntu 9.04

[John McCabe-Dansted]

2009/6/11 Thomas Løcke 

> On Thu, Jun 11, 2009 at 6:25 AM, Michael Gasperl
> wrote:
> > Hi! I have the following Problem:
> > LyX 1.6.2 crashes regularily while i scroll down in a bigger document.
> > This only happens if showing graphics is enabled. How can I solve this
> > problem?
> > Thank you very much!
>
> This also happpened to me, on Slackware 12.1,
>
> I fixed it by updating my QT4 library from version 4.4.3 to version
> 4.5.1, and then recompile LyX against that.


  Heh, I upgraded my QT to QT4.5.1. Maybe thats  why I cannot reproduce.

  I upgraded this way. (NOTE: this is not supported. If  you use this, be
careful, and make backups)

  first I did

sudo aptitude update
sudo aptitude upgrade

  to make sure I was up-to-date

  Then I added

deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

  to /etc/apt/sources.list (you may want to replace the http:// bit with
your local mirror)

  added the following to /etc/apt/preferences

Package: *
Pin: release a=jaunty
in-Priority: 700

Package: *
Pin: release a=karmic
Pin-Priority: 600

Package: libqt4*
Pin: release a=karmic
Pin-Priority: 800

Package: qt4*
Pin: release a=karmic
Pin-Priority: 800

  then I did

sudo aptitude update
sudo aptitude upgrade

   IMPORTANT: make sure there are no packages without qt4 in
   their name being upgraded. Otherwise you could hose your system.

   Then I removed the

deb http://ftp.iinet.net.au/pub/ubuntu/ karmic main restricted universe

   Line from /etc/apt/sources.list

-- 
John C. McCabe-Dansted
PhD Student
University of Western Australia