https://bugs.freedesktop.org/show_bug.cgi?id=35267
Summary: nouveau fails to load BIOS on EFI boot.
Product: xorg
Version: git
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Created an attachment (id=44410)
--> (https://bugs.freedesktop.org/attachment.cgi?id=44410)
full dmesg output
I try use nouveau on my gentoo. As this is a MacBook, i installed Grub2 and
boot directly in EFI mode (eg, no BIOS simulation.... i think).
At loading the nouveau driver, it fails due to no valid BIOS found.
The relevant error message is (dmesg output attached):nouveau 0000:01:00.0:
enabling device (0002 -> 0003)
nouveau 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
nouveau 0000:01:00.0: setting latency timer to 64
[drm] nouveau 0000:01:00.0: Detected an NV50 generation card (0x084700a2)
checking generic (80060000 960000) vs hw (80000000 10000000)
fb: conflicting fb hw usage nouveaufb vs EFI VGA - removing generic driver
Console: switching to colour dummy device 80x25
[drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PRAMIN
[drm] nouveau 0000:01:00.0: ... BIOS signature not found
[drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PROM
[drm] nouveau 0000:01:00.0: ... BIOS signature not found
[drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PCIROM
nouveau 0000:01:00.0: Invalid ROM contents
[drm] nouveau 0000:01:00.0: ... BIOS signature not found
[drm] nouveau 0000:01:00.0: Attempting to load BIOS image from ACPI
[drm] nouveau 0000:01:00.0: ... BIOS signature not found
[drm] nouveau 0000:01:00.0: No valid BIOS image found
nouveau 0000:01:00.0: PCI INT A disabled
>From this point I do not get any graphical output anymore (but i can ssh into
the host). (On a side note: can i somehow tell the kernel to switch back to
efifb?)
I tried this with the gentoo-sources (36-rc5 kernel), with the git-sources
(38-rc2 and rc3 kernel) always getting the same problem in dmesg.
I too tried use nouveau as a module or compiled into the kernel, no difference.
I tried tell grub to use "fakebios", but it did not worked (or I did somethng
wrong, im not that familiar with grub/efi/bios)
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