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    SubjectRe: 2.6.11-rc3-bk9 (radeon) hangs hard my laptop
    On Sun, 13 Feb 2005 22:12:26 +1100, Benjamin Herrenschmidt
    <benh@kernel.crashing.org> wrote:
    > On Sun, 2005-02-13 at 01:09 +0100, Alessandro Suardi wrote:
    > > On Sun, 13 Feb 2005 21:52:55 +1100, Benjamin Herrenschmidt
    > > <benh@kernel.crashing.org> wrote:
    > > >
    > > > > It's definitely the new radeon changes - replacing
    > > > > drivers/video/aty/* and include/video/radeon.h in the
    > > > > -bk9 tree with the ones from -bk8 causes the hang to
    > > > > not reproduce anymore. CC'd Ben and edited subject
    > > > > to more accurately reflect the issue.
    > > >
    > > > Grrr...
    > > >
    > > > Can you try booting with radeonfb.default_dynclk=-1 and if it doesn't
    > > > help, radeonfb.default_dynclk=0 on the kernel command line ?
    > >
    > > I'm currently booted with -bk9 with default_dynclk = -1 :)
    >
    > Excellent. You can help me track it down then. Can you look at
    > radeon_pm.c, function
    >
    > radeon_pm_enable_dynamic_mode()
    >
    > The code for your chip is after the comment "/* Others */" (the M7 is an
    > RV200 chip). Can you comment out the various bits in there and see if
    > you can locate which one is causing your problem ?

    Commenting out pllCLK_PWRMGT_CNTL alone -> still hangs
    Commenting out pllCLK_PIN_CNTL in addition -> works

    Do you want me to build a kernel with only the pllCLK_PIN_CNTL
    instruction commented out or is this enough info ?

    Thanks,

    --alessandro

    "There is no distance that I don't see
    I do have a will - No limit to my reach"

    (Wallflowers, "Empire In My Mind")
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