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Re: original iMac problems
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On Jul 5, 2012, at 4:29 PM, John D. Baker wrote:
On Thu, 5 Jul 2012, Michael wrote:
Black, garbled, out of sync or something completely different?
Bottom 3/4: black.
Top 1/4: left 1/4: garbled white/grey/(green?) scintilating pixels
Top 1/2: rigght 3/4: alternately white/grey vertical stripes, solid
or solid black.
Similar to what's shown here:
Weird, on first glance it looks like the framebuffer is in 24bit mode
while the rest is in 8 bit. Probably missing some drawing engine
From my machine's "/var/run/dmesg.boot" when machfb is allowed to
(from a 6.99.8 kernel):
machfb0 at pci0 dev 18 function 0: ATI Technologies 3D Rage Pro
machfb0: 16 MB aperture at 0x81000000, 4 KB registers at 0x80881000
machfb0: 128 KB ROM at 0x00000000
max_dotclock according to supported modes: 78750
machfb0: 6144 KB SGRAM 98.924 MHz, maximum RAMDAC clock 230 MHz
machfb0: initial resolution 1024x768 at 8 bpp
wsdisplay0 at machfb0 kbdmux 1: console (default, vt100 emulation)
wsmux1: connecting to wsdisplay0
direct rendering for machfb0 unsupported
See my thread here:
It either picks the wrong mode, fails to set it up properly, or
something completely different. Would be nice to nail down which
one it is first.
I've reported as much data as I've been asked for to try and figure it
out over the the past 3+ years. It seem to yet be inconclusive.
What happens if you start X and exit immediately? Does that result in
a readable console with machfb?
I bet it's something fairly trivial which would be easy to fix if I
could just reproduce it.
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