[Bug 2187] New: Radeon 7500, Option "DynamicClocks" "True", and random lock ups

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https://bugs.freedesktop.org/show_bug.cgi?id=2187        
   
           Summary: Radeon 7500, Option "DynamicClocks" "True", and random
                    lock ups
           Product: xorg
           Version: 6.8.1
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P1
         Component: Driver/Radeon
        AssignedTo: xorg-bugzilla-noise at freedesktop.org
        ReportedBy: mrdc76 at yahoo.com


I have a IBM ThinkPad T40 laptop with ATI Radeon Mobility M7 LW [Radeon Mobility
7500] -vga. The problem is that with DynamicClocks enabled, X.org locks up
randomly when started after boot. I have tested it several times without the
DynamicClock enabled and it works. Also, when I run glxgears with the
DynamicClock enabled, it crashed after couple of minutes. 

At the moment I have Ubuntu "Hoary Hedgehog" distribution, but I experienced the
same phenomena with Debian Sarge and the X.org 6.8.1 sources downloaded from
www.x.org. 

This is quite a severe problem because without DynamicClocks the fan of T40 runs
all the time.        
   
   
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