Comment 32 for bug 1178747

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Sebastian Rühl (sebastian-ruehl) wrote :

its really hard to debug...

I just looked at the diff from the patch you referenced:
Here I can see that "PCI_VENDOR_ID_APPLE" is used which is according to "pci_ids.h" "0x106b".
This is also the second hex value what is used in the patch at #17.
The "rdev->pdev->device == 0x6741" in the patch you referenced also matches at my card if I take a look via "lspci -vvv -n":
01:00.0 0300: 1002:6741 (prog-if 00 [VGA controller])

Therefore I think this code snipped should be activated. So Im guessing its not really about a backlight issue (As far as I know no backlight means that you can light up the screen with a lamp and should see some dark display which isn't the case for me).