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Date: Tue, 15 Feb 2011 09:17:41 -0700 (MST)
From: Warren Block <wblock@wonkity.com>
To: Boris Kochergin <spawk@acm.poly.edu>
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Cc: freebsd-stable@freebsd.org, faber@isi.edu, Chris H <chris#@1command.com>
Subject: Re: ATI Radeon LW RV200 Mobility 7500 M7 locks up on X exit
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On Tue, 15 Feb 2011, Boris Kochergin wrote:
>
> Ahoy. Just thought I'd add what I've observed about the problem. Back when I 
> first encountered it on a T42, in the 7.x or 8.x days, it would manifest 
> itself reliably on X shutdown, but only when X was shut down for the second 
> time since the machine had been booted (ditching the ATI driver in favor of 
> VESA was a workaround). Nowadays, on T40s and T42s running -CURRENT, it is 
> sporadic, but much more frequent when the laptops are running on battery as 
> opposed to AC power. Whether or not HAL is present doesn't seem to affect it.

Maybe ACPI related.  I haven't seen the problem at all (ever, that I can 
recall), but haven't been testing on battery.  Still using 
xf86-video-ati-6.13.2 on this one, but the new 6.14.0 might make a 
difference.