Comment 128 for bug 352228

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dvhart (darren-dvhart) wrote :

I had similar problems with a 5300 in a ThinkPad T400 on Lucid. After trying the latest linuxwireless backports and then a 2.6.36-rc4+compat-wireless, I would see errors like:

[34400.190021] iwlagn 0000:03:00.0: Failing on timeout while stopping DMA channel 1 [0xa5a5a5a0]
[34400.190021] iwlagn 0000:03:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0x080003D8
[34400.190021] iwlagn 0000:03:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0x080003D8

After talking with the Intel wireless developers and trying everything possible with module parameters and bios settings, this turned out to be a hardware problem. I tried my harddrive in an identical T400 and it worked. Consider calling Lenovo.