Re: Xorg, xf86EnableIO() and the VESA driver

[Samuel Thibault]

Jérémie Koenig, le Fri 12 Mar 2010 19:54:31 +0100, a écrit :
> On Fri, Mar 12, 2010 at 4:22 PM, Samuel Thibault
> <samuel.thibault@gnu.org> wrote:
> > Jérémie Koenig, le Fri 12 Mar 2010 10:44:13 +0100, a écrit :
> >> Apparently the code in my card's BIOS needs access to both 0x40-0x43
> >> and 0x60-0x63: if I reenable them manually from within gdb the vesa
> >> driver works.
> >
> > Mmm, you may want to check running Xorg with the vesa driver on Linux,
> > as the Linux port also does that.
> 
> The vesa driver works on Linux, but gains access to the io ports
> through iopl(3),

Ah, right, it does both... At first read I thought it was doing iopl()
only if ioperm fails().

> so I guess the ioperm() statements later on don't have any effect.

Yes.  So I'll drop the from the Hurd version, thanks for tracking the
bug!

Samuel