xf86-video-ati-legacy port status

[Scott Bennett]

Andrea Venturoli <ml at netfence.it> wrote:

> On 2020-06-01 21:15, Emmanuel Vadot wrote:
>
> >   Agreed,
> >   Please post full dmesg, pciconf -vl, pkg info and Xorg.log somewhere
>
> https://lists.freebsd.org/pipermail/freebsd-x11/2020-May/025989.html
>
>
>
> The above is what matters most to me.
> The other Radeon card does not work properly with Linux either, so, 
> given the limited resource we have, I guess we should forget about it.
>
> Notice, as I said previously, I'd be very happy to help debugging this: 
> unfortunately remote GDB hangs. If someone could help me overcome this 
> stopper...
>
>
>
>
>
> >> BTW, I also have a laptop with CPU integrated Intel graphics: again,
> >> it's listed as just working, but I had to step through hops to avoid
> >> hangs and I still often get screen corruption.
> > 
> >   Same as above, without info on what hardware you have it's hard to
> > help.
> >   I'm happily running FreeBSD 13-CURRENT on Broadwell, Skylake and
> > WhiskeyLake without any problems.
>
> I don't have access to this machine now; IIRC it's a Sandy Bridge 
> Pentium (but still running 11.3).
>
> If needed, I can get full data the first time I have the chance, but 
> this is less important to me: I've been having corruption for years, and 
> it's usually enough to minimize the windows and restore it, to make it 
> go away.
> The panic with the Radeon card is a much worse thing.
>
     Perhaps you posted your panic messages, and I missed them, but I've
been wondering whether you actually get a panic screen with all sorts of
kernel panic messages, or do you instead get a hard BIOS reset in an
attempt by the DRM driver to reboot your system?  The reason I ask is that
the latter is what happens when running xorg on a Radeon HD 5770, and after
a reboot I can see the final messages that were written to /var/log/messages
just before the reset.  Those messages indicated that the GPU had crashed
(bug #1).  The improper response by the DRM driver is bug #2/design flaw #1,
depending upon how you view such things, although a design document might
well resolve which sort of error was made.


                                  Scott Bennett, Comm. ASMELG, CFIAG
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