Linked by Thom Holwerda on Fri 23rd Aug 2013 08:37 UTC

Pretty much for my entire career in Linux USB (eight years now?), we've been complaining about how USB device power management just sucks. We enable auto-suspend for a USB device driver, and find dozens of different USB devices that simply disconnect from the bus when auto-suspend is enabled.

For years, we've blamed those devices for being cheap, crappy, and broken. We talked about blacklists in the kernel, and ripped those out when they got too big. We've talked about whitelists in userspace, but not many distros have time to cultivate such lists.

It turns out it's not always the device's fault.

Fascinating bug.

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"If there's something so wrong with hardware that current Windows releases are unstable, using Linux might be still risky... (for data integrity for example)"

Maybe, but I wouldn't say that's a foregone conclusion. Microsoft sometimes breaks a lot of perfectly good hardware and drivers with each new operating system. XP->Vista for example was notorious for this. I skipped Vista personally, but with win7 my webcam stopped working, a usb disk enclosure, as did my parent's document scanner. Sometimes it really is a windows problem with nothing wrong with the hardware.

For this particular case it's a clear advantage for open source drivers. With FOSS we are not dependent upon manufactures to to update hardware drivers. Arguably they even have a *disincentive* to do so in order to EOL perfectly good hardware to push new hardware sales.

Edited 2013-08-28 02:37 UTC

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