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Re: Ejecting Ultrabay DVD-CD drive freezes Thinkpad


there is a project call tp_smapi which solvs this problem in a better more
stable way.

Your problem is, the IDE interface which isn't hotplug able be default.. so
its like you cut the power of an harddisc which will also "crash" the kernel.

and .. there is thinkwiki a nice site which has many additional information..
and howtos.

On Fre, 02 Feb 2007, John O'Hagan wrote:

> The command
> #echo -n eject > /proc/acpi/ibm/bay
> freezes my Etch Thinkpad T40 randomly, about half the time. I must then use 
> Alt+Shift+SysRq to shut down.
> This is the eject function of the ibm_acpi kernel module, for Thinkpad 
> Ultrabays.
> I want to add it to my suspend script as it saves a bit of battery 
> life, when it works.
> The logs don't show anything obvious (to me); either I don't know what to look 
> for, or it happens too suddenly to get logged
> Google shows a few references to this, but no conclusions. 
> Could this be a kernel bug? Any ideas appreciated.

Florian Reitmeir

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