Re: RadeonFB [Re: 2.4.23pre8 - ACPI Kernel Panic on boot]
From: Benjamin Herrenschmidt (benh_at_kernel.crashing.org)
Date: 10/31/03
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- In reply to: Kristofer T. Karas: "Re: RadeonFB [Re: 2.4.23pre8 - ACPI Kernel Panic on boot]"
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To: "Kristofer T. Karas" <ktk@enterprise.bidmc.harvard.edu> Date: Sat, 01 Nov 2003 09:55:05 +1100
On Sat, 2003-11-01 at 06:16, Kristofer T. Karas wrote:
> Benjamin Herrenschmidt wrote:
>
> >Ok, first thing: XFree "radeon" _is_ accelerated, though it doesn't
> >do 3D on recent cards
> >
> Hi Ben - Right, sorry, I mean to apply "accelerated" to the 3D effects;
> the private ATI driver is much faster on glxgears than the version that
> bundles with XFree.
>
> >Then, the problem you are having is well known
> >
> I'm having two, actually. The first is that YPAN is getting quite
> confused. If I switch VCs, then switch back, the text has been
> re-arranged, the cursor is often invisible, and sometimes a page or two
> of new text must be written before anything starts to show up on the
> screen again. Experimenting shows that setting VYRES = YRES works
> around this problem.
I'll have to look at this in more details. I don't see why ypan would
cause such screen re-arrangement though...
> The second problem is of course the register contents issue when
> returning from certain graphics programs (e.g. X+fglr) to text mode.. I
> rather like your idea of doing a re-init when switching from KD_GRAPHICS
> to KD_TEXT, as the monitor blank during resolution switch will likely
> overshadow the re-init process.
>
> >Can you verify that running fbset -accel 0 then back 1 cures the
> >problem for you ?
> >
> >
>
> At work now, will try when I return home later...
>
> Kris
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- Previous message: Valdis.Kletnieks_at_vt.edu: "Re: Remote memory access through FireWire?"
- In reply to: Kristofer T. Karas: "Re: RadeonFB [Re: 2.4.23pre8 - ACPI Kernel Panic on boot]"
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