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    Subject[RFC] Try a bit harder to get output on the screen at panic time
    This set of 3 patches makes it a little more likely we'll get panic
    output onto the screen even when X is running, assuming a KMS enabled
    stack anyway.

    It gets me from a blank or very sparsely populated black screen at
    panic time, to one including the full backtrace and panic output at
    panic time (tested with "echo c > /proc/sysrq-trigger" from an X
    session).

    It doesn't cover every case; for instance I think it'll fail when X has
    disabled the display, but those cases need to be handled with separate
    patches anyway (need to add atomic DPMS paths for instance).

    Anyway, please test these out and let me know if they work for you.

    --
    Jesse Barnes, Intel Open Source Technology Center


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