On 12/20/11 14:33, Warren Block wrote:
On Tue, 20 Dec 2011, Da Rock wrote:
Some newer laptops have dual GPUs, an onboard Intel combined with
one from another vendor for higher performance. There's
hot-switching between the two, but AFAIK it's not supported in
FreeBSD. There may be a BIOS option to disable one or the other.
There should still be two video outputs.
More than one video card at a time is a different issue, which is
also unsupported on FreeBSD AFAIK:
(WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
It appears that it is something that needs to be resolved pretty
quickly then. The linux guys jumped on it quick as (I'm not ribbing
by the way) - probably their guys came across it sooner than BSD users.
What has thrown me is the fact that I didn't even consider it as a
problem because I already had installed on a dual video system- ATI
card and NVidia onboard, both that will work on a linux system, and
that FBSD has no problem like this either; it just works. Weird...
It's difficult to tell what you're saying. It's possible that
multiple cards would work in some combinations, and just that the ones
I tried did not. Also, you're talking about two systems, a laptop and
a desktop. So it would be good to get some specifics, like laptop
brand and model, whether the desktop dual-card setup worked with
FreeBSD (and which version of FreeBSD).
NP. I thought I was clear, but I'm not always coherent when I
communicate (apparently... just ask the missus :) ).
The laptop is a compaq cq62 with a quad core phenom and a ATI 4200
Radeon mobility GPU, as well as 6300 GPU.
The HTPC/desktop is a whitebox quad core phenom on a ASUS MB (not 100%
sure which) with a NVidia onboard pcie GPU, and an ATI Radeon 3450.
There could be yet another GPU on there, but I can't remember.
That system is running 8.x FBSD (1 or 2- can't quite remember), and the
laptop I'm installing 9.0-RC3 on, with the view to using freebsd-update
to RELEASE, because of the lack of Atheros 9285 support in 8.x (tried
for hours, just couldn't get the bird to fly :( ).
From what I understand now, having been able assimilate what has been
discussed here and through google, it seems there is a conflict when
dealing with multiple onboard GPUs. What exactly is the issue with
getting an arbiter for FreeBSD? Aside from time, naturally.
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