855GM, xrandr-1.2, modesetting and BIOS panel size.

Keith Packard keithp at keithp.com
Tue Feb 13 02:22:42 PST 2007

On Tue, 2007-02-13 at 08:56 +0100, Bjørn Haagensen wrote:

> (II) intel(0): Modeline "54x0"x0.0  348.40  54 54 852 54  0 23 70 0 (6451.9 kHz)

As you can see, extracting the modeline from the BIOS is not an exact

Eric suggested a few plans today for dealing with these cases; the most
promising is to read the LVDS mode out of the hardware when the server
starts up; if the panel is currently active, we can extract precisely
the information we need directly from the registers. Of course, we'll
lose if you start with a VGA connection.

The other alternative is to see if the table was just scrambled in some
easily-detected and repaired manner; there's already a kludge in the
driver for some common cases.

keith.packard at intel.com
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