[Bug 6108] laptop-mode hang on Thinkpad

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Ubuntu (laptop) | linux





------- Additional Comments From bart at samwel.tk  2005-08-09 19:44 UTC -------
Hi,

I'm the maintainer of laptop mode tools, and I've recently worked with someone
who had similar problems, on Gentoo in this case. It was also a Thinkpad. I
think this one had a freeze while the hard drive was spinning down, the drive
was apparently dropping I/O requests during spindown because the kernel
complained about DMA timeouts just before freezing:

hda: dma_timer_expiry: dma status == 0x21
hda: DMA timeout error

(or something similar to that -- order may have been different)

He's now trying it out with the laptop-mode-tools hdparm -B handling disabled,
and that seems to work. Could anyone here confirm if that fixes their problem?

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