Re: AMD & 13.0 Current

Mark, the line added in /boot/loader.conf was shared by others on this list
in August when I missed  my usual install of the weekly 13.0 Current
snapshot. Turned out to be what could be called a "framebuffer problem" and
by adding this line in loader.conf solved my problem. Later I did more
looking and found we have a nice Wiki about graphics at:

https://wiki.freebsd.org/Graphics


You will see this about mid way down the page:

"It is important to note that there is currently a conflict with both AMD
drivers and the EFI frambuffer. The current workaround, when booting via
UEFI on these systems, is to disable the framebuffer via /boot/loader.conf:

hw.syscons.disable=1"

As for FreeBSD 12.0 Stable, I have not installed it yet, and probably would
have not considered that as I am pretty much into bsd13, but I will now
plan to load their snapshot on Friday and give it a try.

Clay

On Sun, Sep 15, 2019 at 6:20 PM <CSO_at_riseup.net> wrote:

> On Sun, Sep 15, 2019 at 05:29:36PM -0500, Clay Daniels Jr. wrote:
> > I have built me a new computer, put it together, and being impatient did
> > not even partition the 2TB WD HD, but just installed last weeks Current.
> > Worked great!
> > Now that I have these two to compare I will share the details and
> results,
> > particularly if you are using AMD CPR/Radeon Graphics.
> >
> > The older:
> > Per Windows:
> > HP Pavilion23 All-in-one PC
> > Manufactured & bought 2014
> > AMD E2-3800 APU with Radeon Graphics
> > 1.30GHz CPU - 4.00 GB RAM
> > Per either Linux or FreeBSD13:
> > Graphics:
> > Device-1: AMD Kabini [Radeon HD 8280 / R3 Series]vendor:Hewlett-Packard
> > driver: radeon v: kernel bus ID: 00:01.0
> > Display: x11 server: X.Org 1.19.2 driver: ati,radeon
> > unloaded: fbdev,modesetting,vesa resolution: 1920x1080~60Hz
> > OpenGL: renderer: AMD KABINI (DRM 2.50.0 4.19.0-5-amd64 LLVM 7.0.0)
> > v: 4.5 Mesa 18.2.6 direct render: Yes
> >
> > The newer:
> > R7_BSD-13
> > clay_at_r7bsd:~ $ uname -a
> > FreeBSD r7bsd 13.0-CURRENT FreeBSD 13.0-CURRENT r352265 GENERIC  amd64
> > clay_at_r7bsd:~ $ gpart show -p
> > =>        34  3907029101    ada0  GPT  (1.8T)
> >           34        2014          - free -  (1.0M)
> >         2048     1083392  ada0p1  ms-recovery  (529M)
> >      1085440      204800  ada0p2  efi  (100M)
> >      1290240       32768  ada0p3  ms-reserved  (16M)
> >      1323008  1072420864  ada0p4  ms-basic-data  (511G)
> >   1073743872      532480  ada0p5  efi  (260M)
> >   1074276352  2824331256  ada0p6  freebsd-ufs  (1.3T)
> >   3898607608     8388608  ada0p7  freebsd-swap  (4.0G)
> >   3906996216       32919          - free -  (16M)
> > Hardware:
> > AMD Ryzen7 3700X CPU
> > MSI MSI X570-A PRO Motherboard
> > MSI Radeon RX 570 Video Card
> > G.SKILL Ripjaws V Series 16GB SDRAM DDR4 3200 Memory
> >
> > The good thing is they both use the same drm-kmod "amdgpu".
> > So I can see that a 2014 or later computer will probably use the same,
> and
> > not the legacy "radeonkms" in /etc/rc.conf.
> >
> > The other thing to note, is that for 13.0 Current they both need a line
> in
> > /boot/loader.conf:
> > hw.syscons..disable=1
>
> Why is this line needed and for what purposes?
>
> Does the new hardware in this new build also work well in FreeBSD 12
> stable branch? The FreeBSD current is for testing purposes so we are
> very interested in how it the above mentioned new hardware work on
> stable or production version.
>
> Mark
>
> >
> > That's basically my report. I am enjoying my new machine.
> > Clay
> > _______________________________________________
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