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    SubjectRe: Revert 737a3bb9416ce2a7c7a4170852473a4fcc9c67e8 ?
    On Tue, Apr 12, 2011 at 07:29:22PM +0200, Michel Dänzer wrote:
    > On Die, 2011-04-12 at 14:00 +0200, Gabriel Paubert wrote:
    > > On Tue, Apr 12, 2011 at 01:46:10PM +0200, Michel Dänzer wrote:
    > > > >
    > > > > With no_wb=1 the driver goes a bit further but the X server ends
    > > > > up in an infinite ioctl loop and the logs are:
    > > >
    > > > Which ioctl does it loop on? Please provide the Xorg.0.log file as well.
    > >
    > > From memory, the code was 0x64, which is DRM_RADEON_GEM_WAIT_IDLE.
    > Note that it's normal for this ioctl to be called every time before the
    > GPU accessible pixmap memory is accessed by the CPU. Unless the ioctl
    > always returns an error, this may not indicate a problem on its own.

    It seems to be an infinite loop, always returning EINTR because
    of regular SIGALRM delivery.

    > > The Xorg.0.log from the previous boot is attached.
    > I don't see any obvious problems in it. Can you describe the symptoms of
    > the problem you're having with X a bit more?

    Well, X is dead, or rather in an infinite ioctl loop as described above.
    IIRC, the display enters a power-down mode and there is nothing to see.

    > One thing I notice is that the X server/driver are rather oldish. Maybe
    > you can try newer versions from testing, sid or even experimental to see
    > if that makes any difference.

    I lack time to do it until early May (being away for 2 weeks starting on
    Friday and busy on urgent things). I'm indeed Debian stable (Squeeze),
    which is rather recent and the machine is about 2 1/2 years old.

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