Re: [gentoo-user] Weird Screen-Overlay problems after update

[Mick]

On Tuesday 15 Apr 2014 18:39:09 meino.cramer@×××.de wrote:
> Tom Wijsman <TomWij@g.o> [14-04-15 19:36]:
> > On Tue, 15 Apr 2014 17:59:19 +0200
> >
> > meino.cramer@×××.de wrote:
> > > Alan McKinnon <alan.mckinnon@×××××.com> [14-04-15 17:33]:
> > > To exegrate the whole discussion:
> > >
> > > "Help! I have a problem with Linux!"
> > >
> > > "...I have some heard of Linux...bad things...use windows instead!"
> > >
> > > So: Due to the already mentioned reasons I cannot use other hardware/
> > > other software. I need to get THIS running.
> > >
> > > Next question: How can I downgrade to the previous version of
> > > nvidia-drivers/nvidia-settings/nvidia-cude-toolkit, which works
> > > nice for me?
> >
> > Put the version you don't want in /etc/portage/package.mask; see `man
> > portage` for details, but for example if you don't want 337.12 or newer,
> > you would do something like this:
> >
> > /etc/portage/package.mask:
> >     >=x11-drivers/nvidia-drivers-337.12
> >
> > Then doing `emerge -u x11-drivers/nvidia-drivers` will downgrade it.
>
> ...problem here is, that the emerge process already killed all ebuilds
> except the newest one of nvidie-cuda-toolkit and nvidia-settings...
>
> And the emerge detects a mismatch between the nvidia-drivers to
> downgrade and the (still newest) nvidie-cuda-toolkit and nvidia-settings
> and refuses to do anything...
>
> lost?

You can find your way back, even if portage has removed previous versions.

Check portage ebuilds here:

http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/x11-drivers/

or use subversion to pull in the one you need.  Then set it up in your local 
overlay, run 'ebuild <ebuild_file> manifest' and emerge it.  As long as it 
does not have any dependencies which are no longer available you should be OK.

-- 
Regards,
Mick