What is the deal with rpmfusion nvidia updates?

Stephen Morris samorris at netspace.net.au
Mon Nov 10 20:28:31 UTC 2014

On 11/11/2014 01:53 AM, Neal Becker wrote:
> Joe Zeff wrote:
>> On 11/09/2014 01:40 AM, Mike Chambers wrote:
>>> Try to install the new kernel first, then after, see if the new kmod
>>> will update.
>> Speaking from experience, when you update the kernel, the new kmod (if
>> available) is normally drawn in as a dependency.
> Except when, as I just showed, it isn't.
Just my 2 cents worth, as I understand things the kernel does not have 
kmod-nvidia as a dependency, its the other way around, kmod-nvidia has a 
dependency on the kernel version it has been compiled for. For example, 
when I did a full system update yesterday the kernel was upgraded to the 
latest version available in the mirrors dnf is using and kmod-nvidia was 
upgraded to 3.16.6 at the same time, and then this morning rpm fusion 
notified of an upgrade to kmod-nvidia to 3.16.7. I have just done a 
normal 'dnf upgrade' which upgraded, in my case, kmod-nvidia and 
kmod-virtualbox both to 3.16.7.
Just further to this I have also been in the situation where a kernel 
has been updated and kmod-nvidia has not and at boot time the nvidia 
driver would not start because the installed one was not compatible with 
the new kernel. My system was still usable because I could reboot into 
the older kernel that was compatible with the installed kmod-nvidia 
driver, but in addition, xorg also falls back to the nouveau driver if 
the nvidia driver doesn't work, and, if the nouveau driver is not 
available it falls back to the vga driver before it gives up.
Having said this, compatibility between kmod-nvidia and the kernel is 
not that big a deal for me as I also have akmod-nvidia installed so the 
driver will be compiled and installed at boot time if necessary anyway.



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