http://bugzilla.kernel.org/show_bug.cgi?id=7349
[EMAIL PROTECTED] changed:
What |Removed |Added
----------------------------------------------------------------------------
Owner|[EMAIL PROTECTED] |[EMAIL PROTECTED]
Status|NEW |ASSIGNED
------- Additional Comments From [EMAIL PROTECTED] 2006-10-16 18:35 -------
I think this is the right result.
Two problems we should make clear:
1. On many laptops today, a number of devices can be connected to the graphics
adapter in the machine. These devices are on the motherboard and generally are
not directly enumerable by the video driver; for this reason, all motherboard
VGA attached devices are listed in the ACPI namespace.
"Info" will show all the video devices listed in the ACPI namespace, not the
one in use currently.
And there are 8 devices in the DSDT. So the output should list 8 video output
devices.
2. As shown below, one of the _DOD methods( \_SB.PCI0.PEGP.NGFX._DOD )is buggy
because the return value of _DOD method should be a buffer containing an array
of 32-bit device attributes.
And when Bit 31 is 0, no assumptions can be made on which ID will be used for
any particular display type. Contact the Video Chip vendor for details of the
ID scheme employed.
Video driver gets the device attribute and found that Bit 31 is 0. Then
display type is set to UNKNOWN as a result.
Method (_DOD, 0, NotSerialized)
{
Return (Package (0x04)
{
0x0100,
0x0118,
0x0200,
0x0111
})
}
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