https://bugs.freedesktop.org/show_bug.cgi?id=34508
Summary: [grub x86_64-efi] Macbook 5,2 - conflicting fb hw
usage nouveaufb vs EFI VGA - removing generic driver
Product: xorg
Version: unspecified
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: blocker
Priority: medium
Component: Driver/nouveau
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
I have a MacBook 5,2 equiped with a Nvidia 9400M. On this machine, I have the
following bug https://bugs.launchpad.net/acpi/+bug/341230 which is also
reported here : http://bugzilla.kernel.org/show_bug.cgi?id=13170
Basically, due to this bug, the OS doesn't boot unless the option maxcpus=1 is
set in grub2. Some people say they managed to have both cores when they built
grub2 for x86_64 for efi.
This is what I've done with grub2 1.99rc1. I run Ubuntu 10.10 Desktop 64bits.
I managed to boot the kernel but when the timestamp is at ~2 seconds, I hit a
bug with this error: "fb: conflicting fb hw usage nouveaufb vs EFI VGA -
removing generic driver".
The screen freezes except the top which has a sort of green-ish square overlay.
>From there, the only thing I can do is to turn the computer off.
I did some googling but I haven't come accross a similar problem. Maybe
https://bugs.freedesktop.org/show_bug.cgi?id=29171 is a start.
Please tell me how I could provide more informations. I don't experience this
bug when I boot the kernel from grub in a "BIOS-way".
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