[Bug 75629] [r128] Changes needed for RandR support

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75629

--- Comment #10 from Connor Behan <connor.behan at gmail.com> ---
I managed to get r128-support working with the current X server (RAC removal,
pciTag removal, new vgahw API and new screen API). In this driver, the line
http://cgit.freedesktop.org/~agd5f/xf86-video-ati/tree/src/radeon_output.c?h=r128-support#n272
succeeds. I have checked the bits and it is OUTREG(0x0060, INREG(0x0060) &
~0x3).

However, if I try this in the r128 driver (my failed attempt patch), the exact
same call causes a crash. I need to figure out this part first: how can a call
to OUTREG() crash the X server? I have checked and info->PciInfo,
info->MMIOAddr and info->MMIOSize are the same in both cases.

Even if I figure this out, it will not be enough for a DDC detection. When I
run r128-support, there is no crash, but xf86DoEDID_DDC2() tells me that the
VGA monitor is not plugged in even when it is.

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