[Bug 18432] New: radeon kms freezes on boot with video= option

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=18432

           Summary: radeon kms freezes on boot with video= option
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.36-rc4
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: braket@hotmail.com
        Regression: Yes


Created an attachment (id=29832)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=29832)
dmesg-2.6.36-rc4 (cmd line: root=/dev/sda2 hpet=force)

I have a Dell Inspiron 600m laptop with a radeon mobility 9000 card.
Kernel v2.6.36-rc4 compiled with KMS support produces a hard freeze on boot if
I use a video= boot option. I see this also with kernel 2.6.36-rc1 but not with
2.6.35.

This is the kernel command line that makes the kernel freeze on boot:
root=/dev/sda2 hpet=force video=1024x768-24@60

The kernel boots fine with this command line:
root=/dev/sda2 hpet=force

I attach a dmesg captured after booting without a video= option.

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