Date: Sat, 24 Aug 2019 14:55:14 -0600 From: Warner Losh <imp@bsdimp.com> To: "Clay Daniels Jr." <clay.daniels.jr@gmail.com> Cc: Greg V <greg@unrelenting.technology>, "freebsd-current@freebsd.org" <freebsd-current@freebsd.org> Subject: Re: "amdgpu and radeonkms are known to fail with EFI Boot" Message-ID: <CANCZdfqap-a8MEuDgQQnCVEM=HR%2B8V6iZttKhO2OzFhfLBk26A@mail.gmail.com> In-Reply-To: <CAGLDxTVv8psVGeKzWJzp-tHvxkX34sdEPqzAUOJhxNx%2BvGHsFA@mail.gmail.com> References: <CAGLDxTW8mKUhQZwtamFZ5SNULPPSqAB9CE7QumHE4EUc%2Bfk5yw@mail.gmail.com> <F131C0ED-A0F1-45CA-AFA4-CBC516C96607@unrelenting.technology> <CAGLDxTVv8psVGeKzWJzp-tHvxkX34sdEPqzAUOJhxNx%2BvGHsFA@mail.gmail.com>
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On Sat, Aug 24, 2019 at 2:06 PM Clay Daniels Jr. <clay.daniels.jr@gmail.com> wrote: > Greg, thanks for the wonderful suggestion. Where should I put this line: " > hw.syscons.disable=1 " > I tried it in /etc/rc.conf and it booted into the console as usual with > repeated messages: > /etc/rc.conf hw.syscons.disable=1: not found > I could login to the console as usual, but trying to run startx (as user) > still fails. Maybe there is some boot config file this goes in? > Two places: (1) /boot/loader.conf (2) where-ever the docs say there is a conflict with EFI :) Warner > Thanks > Clay > > On Sat, Aug 24, 2019 at 3:29 AM Greg V <greg@unrelenting.technology> > wrote: > > > On August 24, 2019 10:15:22 AM GMT+03:00, "Clay Daniels Jr." < > > clay.daniels.jr@gmail.com> wrote: > > >From the kmod ports, dated 20190814 > > > > > > > > >/usr/ports/graphics/drm-current-kmod/pkg-descr > > > > > >"amdgpu and radeonkms are known to fail with EFI Boot" > > > > > > > > >/usr/ports/graphics/drm-current-kmod/pkg-message > > > > > >"some positive reports if EFI is not enabled" > > > > > > > > >Any practical suggestions on getting drm-current-kmod to work on an AMD > > >machine, including how to NOT enable EFI? I did not see that option on > > >the > > >install menu. > > > > "Not enabling" EFI means booting the installer in legacy more (CSM). > > Installer images are universal, so you'd have to instruct the firmware to > > ignore the EFI loader on there. Deleting the EFI partition might work I > > guess. rEFInd can force CSM boot a USB drive. > > > > I do not recommend this. Instead, there is a workaround for the EFI > > framebuffer conflict. If you have it (i.e. amdgpu fails to load, or hangs > > when starting GUI), boot with hw.syscons.disable=1. You won't see > anything > > on the screen after the boot loader and before loading the driver :) but > > that's not a big deal when the driver autoloads successfully. > > > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >
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