Re: [gentoo-user] Which Radeon Firmware?

[Bruce Hill]

On Mon, Nov 11, 2013 at 01:59:41PM +0100, Elias Diem wrote:
> Hi all
>
> I've got a Radeon graphics card and I don't know which
> firmware to use. My model doesn't seem to be listed on
> https://wiki.gentoo.org/wiki/Radeon#Firmware
>
> Here is  the output from lspci:
>
> <output>
> 00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Trinity [Radeon HD 7560D] (prog-if 00 [VGA controller])
>     Subsystem: Hewlett-Packard Company Device 1850
>     Flags: bus master, fast devsel, latency 0, IRQ 17
>     Memory at d0000000 (32-bit, prefetchable) [size=256M]
>     I/O ports at f000 [size=256]
>     Memory at ff700000 (32-bit, non-prefetchable) [size=256K]
>     Expansion ROM at <unassigned> [disabled]
>     Capabilities: [50] Power Management version 3
>     Capabilities: [58] Express Root Complex Integrated Endpoint, MSI 00
>     Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
>     Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
>     Kernel driver in use: radeon
> </output>
>
> What firmware would you use?

If you have CONFIG_DRM_RADEON=m, and
CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware/", then the kernel will pick the
right firmware automatically, without having to name the microcode in
CONFIG_EXTRA_FIRMWARE at all.

Build your kernel that way and see which firmware shows up issuing:
dmesg | grep -i firmware
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