Hi I just picked up a used Dell 7470 radeon graphics card for my older socket 775 system. There was a webpage that had all the extra firmware files to load but I can't seem to find it anymore. I don't know which firmware .bin's but I think it has Caicos chip. The 2 lines I change in .config for the linux kernel for my juniper card (the one that was in it before) goes like this and it works perfect

CONFIG_EXTRA_FIRMWARE="radeon/JUNIPER_rlc.bin radeon/JUNIPER_smc.bin radeon/JUNIPER_pfp.bin radeon/JUNIPER_me.bin radeon/CYPRESS_uvd.bin"
CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware"

When I had those lines incorrect years ago, it caused a long delay that I'm seeing again with this new card

I have a guess, not sure if its right.

CONFIG_EXTRA_FIRMWARE="radeon/CAICOS_me.bin radeon/CAICOS_mc.bin radeon/CAICOS_pfp.bin radeon/R600_rlc.bin radeon/R600_me.bin radeon/R700_rlc.bin"
CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware"

There's a very long blank during startup but eventually it seems to work, but I get this error in dmesg. The line before it is a normal ethernet card initialization msg with a time of about 7 seconds, then the entry below has like 180 seconds post boot (forget the exact, its on another computer)

radeon_dp_aux_transfer_native: 96 callbacks

Anyone know that webpage with all the entries, or what I should put for the config_extra_firmware? Or do I have it correct and something else is up maybe with my kernel config? Thanks in advance- Derek

try
https://linux-hardware.org/index.php...6778-1028-2120

notice all the variants?

do not trust your assumptions please.

If you can not get to a graphical desktop you can still run

the if you are sure its a dell brand, it might be made by a sub-contractor, click on each dell in link and look for a match to ids

That wasn't really helpful TBH

I found that page, everything works good now. Here it is in case anyone has this trouble in the future

https://wiki.gentoo.org/wiki/Radeon

Here's the exact line for .config in the linux kernel build in case the link goes down

Nothing extra, which might have been the cause of the hangup, or the different ordering (unsure if that matters but I copied the instructions)

There is no "extra firmware" needed for a Caicos card in most distros. Mine works in Knoppix, Fedora, Mageia, Debian, openSUSE, and others without any firmware that isn't included in a default installation. It would have been nice to see clearly which distro this was about in the OP.