Topics related to Linux on ThinkPads, a series of laptops formerly manufactured by IBM, and now by Lenovo.

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Why does my wlan0 stop working?

A few minutes ago, my internal wireless card wlan0 on Thinkpad T400 starts not working. This always happen after a while (between half an hour and several hours) from starting Ubuntu 12.04, especially ...
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How to adjust charging thresholds of laptop battery?

My laptop is Lenovo T400, and OS is Ubuntu 12.04. I have not been able to adjust the thresholds for battery starting charging and stopping charging. I observed that its current starting charging ...
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How to control thinkpad_acpi via procfs, RHEL 6.4

I'm having trouble with the thinkpad_acpi module on my Thinkpad T400. While the processor temperature can vary, depending on the CPU activity, from 40 to 85 deg. Celsius, my fan speed remains almost ...
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787 views

WiFi not working after restoring from hibernation (authentication times out)

My Intel 6205 wireless network card does not work after hibernating. It sometimes also does not work on boot, failing in the same way. Occasionally, it also stops working after ~10 minutes of ...