DRM and Radeon
Marek Zarychta
zarychtam at plan-b.pwste.edu.pl
Tue Jan 26 08:19:04 UTC 2021
W dniu 26.01.2021 o 08:58, Graham Perrin pisze:
> On 26/01/2021 07:02, Alexey Dokuchaev wrote:
>
>
> > Re: loading drm crashes system
>
>
> > … There are known issues with Radeon cards, they were quite well
> > supported a year ago, then something got broken. I've promised to
> > bisect this and find the cause, but there were several
> > syscall-related changes in -CURRENT though the course of the last
> > year, so bisecting just the kernel is not enough (machine won't get
> > to login prompt if the userland does not match), which cripples the
> > process.
> >
> > I still intend to take this quest, just not sure when. :(
> >
> > ./danfe
>
>
> Any cards in particular?
>
> <https://old.reddit.com/r/freebsd/comments/kyoxmc/freebsd_quarterly_status_report_fourth_quarter/gjiw3y3/>
> – whilst I didn't mention Radeon there, for me it _was_ the Radeon story
> that seemed to improve a few months ago.
>
> <https://bsd-hardware.info/?id=pci:1002-6841-103c-17a9> AMD Thames
> [Radeon HD 7550M/7570M/7650M]
For example old RS880 [Radeon HD 4200]. After deprecation of
graphics/drm-fbsd12.0-kmod I found that it is still supported fine on
12-STABLE with legacy /boot/kernel/radeonkms.ko from the base. While
trying the driver from graphics/drm-fbsd12.0-kmod I was not able to use
this card with gdm, only startx or x11/slim worked. On 13-ALPHA this
card still works fine with deprecated graphics/drm-legacy-kmod.
--
Marek Zarychta
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