Re: [gentoo-user] struggling with dri

[Fernando Meira]

On 10/11/05, Holly Bostick <motub@××××××.nl> wrote:
>
> Fernando Meira schreef:
> > On 10/10/05, Jason Cooper <gentoo@××××××××××.net> wrote:
> >
> >> Fernando Meira (fmeira@×××××.com) scribbled:
> >>
> >>> I think I have radeon driver built-in the kernel.. does that mean
> >>> that
> >>
> >> it is
> >>
> >>> loaded before agpgart? agpgart and intel_agp are both modules...
> >>>
> >>> should I them recompile my kernel and leave radeon as module?
> >>
> >> yes.
> >
> >
> >
> > Ok, with this modules being loaded at boot: agpgart intel_agp radeon
> >
> > I still don't have rendering! So, should I try to compile all
> > built-in the kernel? Or should I go for x11-drm?
> >
> > Cheers, Fernando
> >
>
> I'm not sure I understand what you're doing here.
>
> As far as I know (and I must stress that I'm not that familiar with
> either the radeon driver or how it works with the Mobility chips,
> because I have a 9800SE that must use the fglrx drivers to get OpenGL/3D
> hardware acceleration/direct rendering), the radeon driver is a 2D
> driver that is used in combination with the kernel's DRM and the Mesa
> libraries to get direct rendering/3D hardware acceleration enabled.
>
> So my first question would be:
>
> What is the status of DRM in your kernel?
>
> Device Drivers=>Character Devices=>Direct Rendering Manager (XFree86
> 4.1.0 and higher DRI support)


It was DRM [=m].
All (agpgart, inter_agp, DRM, radeon) were [M].

Now, I know that for the fglrx drivers to run, this kernel option must
> be *unset*, but it's clear that you can't even have the 'radeon' module
> if DRM is not set. However, in looking at these settings in my own
> kernel (and assuming that the Mobility chipset in your lappy can use
> these drivers to provide 3D hardware acceleration), I noticed that:
>
> - when I had /dev/agpgart set as a module, I could only build DRM as a
> module (the kernel gave me a message to this effect);
>
> - setting /dev/agpgart to statically compiled (Y) allowed me to build
> DRM statically compiled (but I could still build Radeon as a module, and
> intel_agp as a module under agpgart).
>
> Again, I'm no big expert on the radeon kernel drivers, but I find it
> hard to believe that in this situation it can be a good thing for
> /dev/agpgart and /DRM themselves to be compiled as loadable modules
> rather than statically (although the sub-functions, intel_agp and
> radeon, most likely *should* be compiled as modules).
>

So I would suggest that your kernel config "should" look like this:
>
> <*> /dev/agpgart (AGP Support)
> < > ALI chipset support
> < > ATI chipset support
> < > AMD Irongate, 761, and 762 chipset support
> < > AMD Opteron/Athlon64 on-CPU GART support
> <M> Intel 440LX/BX/GX, I8xx and E7x05 chipset support
> < > NVIDIA nForce/nForce2 chipset support
> < > SiS chipset support
> < > Serverworks LE/HE chipset support
> < > VIA chipset support
> < > Transmeta Efficeon support
> <*> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
> < > 3dfx Banshee/Voodoo3+ (NEW)
> < > ATI Rage 128 (NEW)
> <M> ATI Radeon
> < > Intel I810 (NEW)
> < > Intel 830M, 845G, 852GM, 855GM, 865G
> < > Matrox g200/g400 (NEW)
> < > SiS video cards (NEW)


Ok, so I do as you say, change agpgart and DRM to be statically and leave
inter_agp and radeon as modules.
Exactly as you mention.

For what it's worth. You could then take agpgart out of
> /etc/modules.autoload.d/kernel-2.6 (since it's no longer a loadable
> module, you can't load it that way anyway. but then intel_agp should
> hopefully load correctly).


Yes... done!

You would perhaps also want to check your build of xorg:
>
> emerge -pv xorg-x11


Yes, I have opengl USE flag active and xorg-x1 compiled with it.

Hope this helps,
> Holly


Well, I really appreciate it, but it's still not working. All the same, no
errors and no rendering.
Xorg.0.log does not report any error, dmesg reports:

 agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 1x mode

and lsmod:
radeon 60800 1
intel_agp 15260 1

So.. don't know what can be wrong...

To add: now I lost the booting report!! After disabling DRM, FM support
(vesa-fb + ati + ddc/I2C) for trying fglrx driver.. I can't get back the
booting screen.. just a black screen from Grub to login manager.. The funny
part is that I re-set all these kernel option.. well, all less one, support
for FB splash (inside /Device Drivers/Graphics Support/Support for
framebuffer devices/), which I can't find anymore.. weird.. very weird...

any clue? to any of the problems?

Thanks,
Fernando