[elrepo] Keyboard ceases functioning after install of kmod-nvidia-340xx

[Manuel Wolfshant]

On 6/17/20 12:40 AM, Jeremy Yocum wrote:
> Thanks everyone for the input!
>
> On 6/16/20 7:21 PM, Phil Perry wrote:
> > Hi Jeremy,
> >
> > Are all kernels affected?
> >
> Yes, kind of? The two most recent kernels on my grub boot have the 
> same issue — the keyboard stops working right after I leave the grub menu.
>
> This *doesn't* happen on the third / oldest / rescue kernel. There the 
> keyboard keeps working, but then I get 2.5 full screens' worth of 
> dracut-initqueue-timeout errors then it drops me into emergency mode 
> with a "dracut:/#" prompt.
>
> I saved a file of the rdsosreport.txt file it makes on a USB, but I 
> don't know what to make of it. (This is where my two months of Linux 
> experience really shows itself.)
>
> I type "exit" and it says "Warning: Not all disks have been found. 
> Warning: You might want to regenerate your initramfs." (So maybe 
> initramfs is the problem?) Then it sits after those error messages 
> indefinitely, hours if I let it.

In this stage it just waits indefinitely for your input. You should, 
indeed, regenerate the initramfs.


> Shockingly it lets me force a reboot with Ctrl-Alt-Del (but I have to 
> press it seven times).
>
>
> > Are you able to uninstall affected kernel(s) and reinstall them.
> >
> No — because I can't access internet in recovery mode now for some 
> reason. I tried to download the most recent kernel package I was using 
> on another computer and bring it to the problem machine via USB, but I 
> can't find the .rpm for the kernel I was last using. There are 
> apparently some newer kernels, but I don't want to try to upgrade the 
> kernel while I'm still having so many issues!

The kernels from CentOS 8.1 which I presume that you were using ( 8.2 
was released 2 days ago ) are now available at 
http://vault.centos.org/8.1.1911/BaseOS/x86_64/os/Packages/



>
>
> > Are you able to try plugging in a USB keyboard to see if that works.
> >
> I don't have a USB keyboard. :( I'm torn between ordering a USB 
> keyboard to try it out and just reinstalling CentOS 8 and starting 
> from scratch. But I do really, really want to figure out how to fix 
> the issue because I want to better understand Linux and how it 
> interacts with hardware.
>

>
> > To be honest, other than this seems to have been triggered when you
> > installed the nvidia drivers, this doesn't look like an elrepo issue
> > and I'm struggling to know what the issue may be or suggest things
> > that may help.
> I appreciate your help! No one on the CentOS forums has responded to 
> the issue — I think folks think it's an ELRepo issue. Or they just 
> don't know what to suggest.

I'd bet on the last one


>
> I *did* come to this mailing list because the keyboard issue appeared 
> immediately after the Nvidia driver install, so at the very least I 
> hoped you might know what in the ELRepo install process might have 
> caused the error.

afaik you are the first one to report such an issue. normally the video 
drivers should not interfere with the kbd. and elrepo does nothing else 
but repackage in a smarter way the binary drivers provided by Nvidia.


> — do you think I should try and reinstall my most recent kernel if I 
> can find the .rpm online somewhere?

it is certainly worth a shot. You could even boot in rescue mode from a 
CD or USB stick, chroot to the existing installation and yum [re]install 
the rpm that already exists in the installation kit.


wolfy

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