kde problems in hoary after upgrade

[Zach]

Okay I seem to have found the kulprit, though I can't explain it and I
don't know how to solve it.  Maybe somebody smarter/wiser can provide
insight.

The problem seems to be the line:
Option "RenderAccel" "1", to enable hardware acceleration (I believe
for mpeg2 decoding).  When it is present I can boot into X find, but I
cannot log into KDE, nor can I start up most qt apps (anecdotal
evidence only) from another WM.  gtk apps run fine.  When I remove the
RenderAccel option, everything is fine.

What I don't know:
(1) why this worked fine before upgrading several packages last night
but not now
(2) why this seems (anectdotally) to affect qt apps but not gtk
(gnome) apps, even when run from neither kde nor gnome.
(3) What to do to fix it.  

I'm running K7 cpu with nforce2, onboard nvidia graphics (~gf 4 mx),
nvidia proprietary drivers--latest available in repository (7167?).

One thing I did notice, is that according do apt the nvidia-glx
package is version 1.0.7167, consistent with the latest version of
nvidia's proprietary drivers-7167.  but the nvidia-kernel-common
package is versioned 1.0.6629, consistent with nvidia's previous
driver version, 6629.

Anyway, any advice would be appreciated.

On Apr 1, 2005 12:44 PM, ubuntu-users-request at lists.ubuntu.com > 
> Message: 6
> Date: Fri, 1 Apr 2005 12:32:36 -0500
> From: Zach <uid000 at gmail.com>
> Subject: Re: kde problems in hoary after upgrade
> To: ubuntu-users at lists.ubuntu.com
> Message-ID: <fb4429d105040109323be11d54 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> Sorry, I phrased that somewhat imprecisely.  I was specifically
> referring to mythfrontend.  I think (correct me if i'm wrong)
> mythfrontend uses qt which (again correct me if I'm wrong) is the gui
> api/framework used by KDE and KDE apps.
> 
> Seeing that you're the maintainer for the mythtv debian/ubuntu
> packages, I'll gladly defer to you for the specifics on these matters.
> :-).
> 
> Anyway, situation remains the same.  Since dist-upgrade last night,
> the system freezes when I log into KDE.  And from other environments
> such as fluxbox, the same thing happens when I start up a kde app.
> Also the same thing happens when i start the myth frontend from
> fluxbox.  Would I be mistaken to say that these three things have qt
> in common?  If so perhaps something installed by apt last night broke
> or conflicts with one of the qt libraries?  Not sure if there was a qt
> upgrade last night, or not.  If anyone is experiencing this problem
> and knows a fix I would be grateful.  Barring that, I'll cross my
> fingers and hope that another dist-upgrade resolves the issue.
> 
> Relatedly, is there a way to use apt to revert back to a known good
> state, say from a specific date?  I know it keeps logs of what
> packages were installed when.  If you do apt-get dist-upgrade, and
> bork something up, but don't know which package(s) broke the system,
> It would be great to say "hey, apt, back out all the changes you made
> yesterday" or something. Not sure if previous versions of packages are
> maintained in the repositories or in the cache, but it seems possible.
> 
> Anyway, thanks
> Zach
> > Date: Fri, 1 Apr 2005 06:51:14 -0800
> > From: Matt Zimmerman <mdz at ubuntu.com>
> > Subject: Re: kde problems in hoary after upgrade
> > To: ubuntu-users at lists.ubuntu.com
> > Message-ID: <20050401145114.GY9266 at alcor.net>
> > Content-Type: text/plain; charset=us-ascii
> >
> > On Fri, Apr 01, 2005 at 07:52:43AM -0500, Zach wrote:
> >
> > > Anybody have problems with KDE in hoary after dist-upgrade last night?
> > >  After upgrading, when I log in, KDE get's to it's splash screen and
> > > freezes.  I was working on my mythtv, so I installed fluxbox to allow
> > > me to continue working while waiting for the apt-gods to fix the
> > > problem.  When I start mythfrontend, the same problem happens--starts
> > > to load and freezes.  Myth relies on KDE libraries, so this is
> > > probably the same problem.
> >
> > MythTV does not link with any KDE libraries, only the MythBrowser add-on.
> >
> > --
> >  - mdz
> >
>