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    Black screen freeze upon user switch

    I'm running Karmic on an Acer Aspire laptop. When I try to switch users (using the "Leave" tool), the screen goes black and the machine freezes. Even CapsLock doesn't work. There's nothing in /var/log/syslog to indicate what happened.

    In an earlier installation attempt, I was getting this behavior on initial boot unless I used the recovery kernel -- and even then, I would sometimes encounter it after pressing the down arrow on the first selection screen.

    Is this a known problem? How might I track it down?

    #2
    Re: Black screen freeze upon user switch

    my only thought is that it could be a video driver (that is if you had to install one)
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