[mythtv-users] upgraded to nvidia 8576, want to downgrade to 7676 but can't

David Watkins watkinshome at gmail.com
Tue Apr 11 11:55:06 UTC 2006


On 11/04/06, Gabe Rubin <gaberubin at gmail.com> wrote:
> I tried upgrading my nvidia driver thinking it would help some
> playback quality issues, but it has made things messy (multiple lines
> of text won't properly display in menus, 3:4 catpures get streched to
> 16:9 without changing the aspect ratio, a blue horizontal bar appears
> on the playback, and inability to play live tv), so I want to switch
> back.
>
> The upgrade also upgraded my kernel, and I thought I could just switch
> kernels to the old one and reboot, but something seems to have
> happened that won't even load x up then; I assume a mismatched kernel
> driver and kernel.
>
> In the new kernel, I try to downgrade by doing:
> yum install nvidia-graphics7676
>
> but get this error:
> ---> Package nvidia-graphics7676-libs.i386 1:1.0_7676-68.1.rhfc4.at
> set to be updated
> ---> Package nvidia-graphics7676-kmdl-2.6.16-1.2069_1.rhfc4.cubbi_swsusp2.i686
> 1:1.0_7676-68.1.rhfc4.at set to be updated
> --> Running transaction check
> --> Processing Dependency:
> /boot/vmlinuz-2.6.16-1.2069_1.rhfc4.cubbi_swsusp2 for package:
> nvidia-graphics7676-kmdl-2.6.16-1.2069_1.rhfc4.cubbi_swsusp2
> Importing Additional filelist information for dependency resolution
> --> Finished Dependency Resolution
> Error: Missing Dependency:
> /boot/vmlinuz-2.6.16-1.2069_1.rhfc4.cubbi_swsusp2 is needed by package
> nvidia-graphics7676-kmdl-2.6.16-1.2069_1.rhfc4.cubbi_swsusp2
>
>
> I am running 2.6.16-1.2069_FC4
>
>
> Thanks for any help.

If you've been installing from the atrpms site then you should have the

nvidia-graphics-switch

program, and your original 7676 nvidia kernel module should still
exist for the old kernel.  So I'd try:

1) Boot into your old kernel
2) Switch to runlevel 3 (to stop the X server)
3) type        nvidia-graphics-switch 7676
4) cross fingers and hope for no error messages
5) Ensure the old kernel is the default.

This should get you back to where you were on the old kernel.  No you
can plan how you want to move forward.

Be warned though that when booting your new kernel X will fail
(because you don't have a 7676 nvidia kernel module for that kernel)
and if you have a graphical boot then the machine may even fail to
boot (this caught me out on FC4).


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