On Thu, Jul 03, 2008 at 05:21:52PM +0100, Matthew Garrett wrote:
> On Thu, Jul 03, 2008 at 06:08:59PM +0200, Thomas Renninger wrote:
>
> > + if (ACPI_SUCCESS(acpi_get_handle(device->handle, "DRDY", &h_dummy))) {
> > + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found IGD device\n"));
> > + video_caps |= ACPI_VIDEO_IGD;
> > + }
>
> In principle, it's possible for a vendor to implement opregion but not
> actually use it until the tche flags are set. If anyone's done that then
> you've just broken backlight control on their system.
I've just had it confirmed that recent Panasonics behave this way. I
suspect the same's true of many 965 systems.
--
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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