[Bug 35531] New: Kernel 2.6.36 series, xf86-video-ati 6.14.0 kernel blows up

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=35531

           Summary: Kernel 2.6.36 series, xf86-video-ati 6.14.0 kernel
                    blows up
           Product: DRI
           Version: unspecified
          Platform: x86 (IA32)
               URL: https://bugs.gentoo.org/show_bug.cgi?id=349247
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: chris2k01 at hotmail.com


Created an attachment (id=44703)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=44703)
dmesg output from a successful attempt

When booting up Xorg server 1.9.2 with xf86-video-ati-6.14.0 and kernel
2.6.36-gentoo-r5 (distro-patched kernel, but the same problem doesn't appear in
2.6.35-g-r12), as soon as X starts, my monitor goes into DPMS powersave and I
get backtraces in dmesg.

A Gentoo developer suggested booting with kernel command-line parameter
"radeon.agpmode=-1". This didn't help.

I've attached dmesg output from a successful startup with 2.6.35, and will
attach dmesg output from failed startups with and without agpmode=-1
momentarily (looks like only one file can be attached at bug creation time).

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