Avivo crash in xf86MapPciMem (X1950Pro 512M) and CRT blanking

[Robert Tate]

>
> > Once I limited it to 256M, X would start but it put my (older) CRT
> monitor into a power save state (or gave it a mode it couldn't
> handle).  When I connected my wife's LCD monitor prior to starting X it
> would work correctly even if I switched back to the CRT (both use 15-pin VGA
> connectors).  I believe this is in part because the CRT doesn't provide EDID
> information.  I'm a bit confused by what I see in the log when I start X
> with the CRT connected, it has a message about configuring crtc(0) for
> 1152x768, but all those modes are rejected above; there's also a message for
> crtc(1) in 1024x768 but it's a single-headed configuration.  (When the LCD
> is connected there's only messages for crtc(0) in 1024x768.)
>

It's probably a useless observation, but I got it to "work" by changing
avivo_output_setup to always assign output->possible_crtcs = 1.  (I expect
this kills any chance of running dual headed.)  It came up in 1024x768 @
60Hz -- the refresh rate surprises me.  In my xorg.conf, I've got
"HorizSync    31.5 - 64.3" and "VertRefresh  50.0 - 90.0" which I thought
should allow 75Hz.  (I get 1024x768 with fglrx.)  Is this just a limitation
of the driver in its current state?  I hope this provides a bit more of a
clue for someone...

Thanks,
Robert
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