Bug 843860 - "fb: conflicting fb hw usage cirrusdrmfb vs EFI VGA - removing generic driver" results in no further console output
Summary: "fb: conflicting fb hw usage cirrusdrmfb vs EFI VGA - removing generic driver...
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Dave Airlie
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2012-07-27 15:07 UTC by Richard W.M. Jones
Modified: 2012-08-24 00:12 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-08-24 00:12:03 UTC

Attachments (Terms of Use)
screenshot of boot (34.84 KB, image/png)
2012-07-27 15:07 UTC, Richard W.M. Jones
no flags Details

Description Richard W.M. Jones 2012-07-27 15:07:32 UTC
Created attachment 600808 [details]
screenshot of boot

Description of problem:

My guest doesn't boot.  Unfortunately I can't see why
it cannot boot because the display driver appears to be
killed somewhere early on during the boot (see attached

BTW I don't know if component=kernel is the correct one.
It was just a guess.

Version-Release number of selected component (if applicable):

Fedora 18 Rawhide updated to latest everything today.
32 bit.

How reproducible:


Steps to Reproduce:
1. Remove rhgb and boot.
Actual results:

Fails to boot, cannot see boot messages after a particular
point in the boot.

Expected results:

Should be able to see the console.

Additional info:

Comment 1 Richard W.M. Jones 2012-07-27 15:08:09 UTC
I also tried noefi but that made no difference.

Comment 2 Dave Airlie 2012-07-30 19:41:15 UTC
can you try nomodeset and runlevel 3, then when it comes up, modprobe cirrus
and see if it says anything, or maybe ssh in and modprobe it.

Comment 3 Richard W.M. Jones 2012-07-30 19:50:04 UTC
I removed 'rhgb quiet' and replaced it with 'nomodeset 3'.

This gives me messages up to the point where the real failure
occurs (systemd seems broken).  When I log into the "emergency
mode" shell, the cirrus module seems totally unavailable or

# modprobe cirrus
ERROR: could not insert 'cirrus': Invalid argument

(No other kernel messages)

Not sure if this is really telling us anything ...

I should note this is a KVM guest running on an F17 host
with qemu-kvm 1.1.

Comment 4 Adam Jackson 2012-08-17 17:17:56 UTC
-EINVAL sounds like it doesn't believe there's matching cirrus hardware to bind to.  The modalias on the cirrus driver is:

alias:          pci:v00001013d000000B8sv00001AF4sd00001100bc*sc*i*

How does that compare with the output of 'lspci -nn' for the device?

Comment 5 Richard W.M. Jones 2012-08-17 20:43:28 UTC
I'm now on 3.6.0-0.rc1.git6.1.fc18.i686 which also hangs with
no display during boot.

Using nomodeset 3 during boot displays that it's cycling
in systemd going round and round.

So: seems that the cirrus bug here might still be present.

Going back to an older, working kernel, the lspci -nn output is:

00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02)
00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000]
00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010]
00:01.2 USB Controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01)
00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03)
00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8]
00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000]
00:04.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001]
00:05.0 Unclassified device [00ff]: Red Hat, Inc Virtio memory balloon [1af4:1002]

Comment 6 Josh Boyer 2012-08-21 15:03:20 UTC
This should be fixed by the patch Dave came up with last night.  I added it to the f18/rawhide kernel this morning.

Comment 7 Fedora Update System 2012-08-22 16:06:40 UTC
kernel-3.6.0-0.rc2.git2.1.fc18, grub2-2.00-5.fc18, pesign-0.10-4.fc18 has been submitted as an update for Fedora 18.

Comment 8 Fedora Update System 2012-08-24 00:12:03 UTC
kernel-3.6.0-0.rc2.git2.1.fc18, grub2-2.00-5.fc18, pesign-0.10-4.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

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