Getting Radeon graphics card to work

Tomasz Kowalczyk kowalczt.fbsd at
Wed Aug 26 22:38:07 UTC 2020

Im not expert in new drm drivers, but I used intel last month on Linux.
Do you have:

Options “BusID” “something”

In your xorg.conf ? You’r ‘something’ will be most likely 3:0:0.

> On 25 Aug 2020, at 17:48, D'Arcy Cain <darcy at> wrote:
> I am getting "Cannot run in framebuffer mode. Please specify busIDs for all
> framebuffer devices" on my new laptop.  I search the net but none of the
> suggestions seem to help.  I am running 12.1-RELEASE-p8.  Here is what
> "pciconf -lv" says:
> vgapci0 at pci0:3:0:0:     class=0x030000 card=0x18211043 chip=0x15d81002
> rev=0xc4 hdr=0x00
>    vendor     = 'Advanced Micro Devices, Inc. [AMD/ATI]'
>    device     = 'Picasso'
>    class      = display
>    subclass   = VGA
> Here is what I see in dmesg:
> [drm] radeon kernel modesetting enabled.
> CPU: AMD Ryzen 3 3200U with Radeon Vega Mobile Gfx   (2595.20-MHz K8-class CPU)
> I tried adding this to /usr/local/share/pciids/pci.ids but I don't know what
> to put for the subdevice.  I tried just putting zeroes but that didn't
> change anything:
>    15d8  Picasso
>        1002 0000  Asus VivoBook
>        103c 8615  Pavilion Laptop 15-cw1xxx
>        17aa 5124  ThinkPad E595
> I have tried kldloading radeonkms, i915kms and amdgpu.  I believe it is that
> last one that I need but none of them helped.
> Can anyone tell me if this arrangement should be able to work?
> --
> D'Arcy J.M. Cain <darcy at>         |  Democracy is three wolves
>                |  and a sheep voting on
> +1 416 788 2246     (DoD#0082)    (eNTP)   |  what's for dinner.
> IM: darcy at, VoIP: sip:darcy at
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