Re: nvidia -> AMD failure

D. R. Evans wrote on 7/22/26 11:33 AM:
> Stefan Monnier wrote on 7/22/26 10:57 AM:
>>> I had naively thought that simply putting in an AMD card -- especially
>>> a model that I'd already used successfully in a different machine -- was
>>> pretty much guaranteed to work; but obviously I was wrong.
>>
>> Any chance you simply have `firmware-amd-graphics` installed in one
>> machine but not in the other?
>>
> 
> Every chance in the world :-) ...
> 
> Yep, the server machine that is not booting does not have that package,
> whereas the desktop machine where I did the swap last week does have it.
> 
> The server does not have the
>     non-free non-free-firmware
> repositories in /etc/apt/sources.list. I'll add those (I assume that the
> firmware-amd-graphics package is in non-free-firmware)
> 
> When I get a chance to take the server machine out of service (might be a few
> days) I'll add that package, power down, put the AMD card back in, and reboot.
> 

I did all that, and... super! the server came up, and video works as it should 
(including X11 no longer consuming almost all the available CPU if I run a 
desktop).

Thank you very much.

I simply had no idea that out-of-the-box debian stable needed anything 
additional (and, in particular, non-free) in order to use an AMD-based card.

   Doc