I just been there with Slack 12.2 kernel. Not yet changed the kernel config here in order to try Catalyst 9.1 (still running very well, Catalyst 8.12)
Also likely noteworthy, 1 the above links, my resolved IRQ problem issue vis a vis "yes, OS *is* a plug and play OS" (which is *not* a default bios setting of a very late Asus pentium 4 motherboard) -- default bios setting is *no* OS is not plug and play -- which makes bios, *not* the OS assign IRQ's, -- evidently also this conflicts with udev
but, I changed bios setting as per above to *yes* (OS assigns resources) yes plug and play OS
Linux likes to do (plug and play) it.