graphics on amd radeon vega

[Vasily Postnicov]

Does sysctl -a | grep exp_hw_support show anything? Usual way to tweak
kernel parameters is via sysctl. But this is linux stuff so it can be
anything else.

If sysctl does not help, you can recompile the whole driver changing
int amdgpu_exp_hw_support = 0;
to
int amdgpu_exp_hw_support = 1;
in drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

ср, 30 дек. 2020 г., 15:17 Michael Schuster <michaelsprivate at gmail.com>:

> On Tue, Dec 29, 2020 at 3:35 PM Oskar Sharipov <oskarsh at riseup.net> wrote:
>
> > On Tue, Dec 29, 2020 at 05:04:38PM +0300, Vasily Postnicov wrote:
> > > 13-CURRENT supports that chip. See
> > >
> >
> https://github.com/freebsd/drm-kmod/blob/drm_v5.4.62_4/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> > >
> > > > {0x1002, 0x15d8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RAVEN|AMD_IS_APU}
> >
> > Oh, wow. Then I will consider could I try CURRENT now or wait
> > until it released. Thank you!
> >
>
> when I Install this version on current as of today, I see this in
> /var/log/messages:
>
> Dec 30 13:11:56 hbeast kernel: [drm] amdgpu kernel modesetting enabled.
> Dec 30 13:11:56 hbeast kernel: drmn0: <drmn> on vgapci0
> Dec 30 13:11:56 hbeast kernel: [drm] This hardware requires experimental
> hardware support.
> Dec 30 13:11:56 hbeast kernel: See modparam exp_hw_support
> Dec 30 13:11:56 hbeast kernel: device_attach: drmn0 attach returned 19
> sorry if this is an FAQ, but I couldn't find an answer: how do I
> enable/modify "modparam exp_hw_support"?
>
> thx
> Michael
>
> --
> Michael Schuster
> http://recursiveramblings.wordpress.com/
> recursion, n: see 'recursion'
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