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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Member since:

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)

Reply Parent Score: 2

Alfman Member since:


"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

Reply Parent Score: 2

zima Member since:

It's not so simple though. Many OSS drivers are half-baked and/or unmaintained. One example I have here are Radeon R200 drivers - people like lemur2 would tell you that they are the shining example of FOSS ecosystem ...but the truth is, they are horribly broken in multimon setups for a very long time. The same hardware works flawlessly under Windows, even though it's supposedly abandoned.

Webcams are similar - I'm a sort of webcam collector ;) (I have way more old ones than I need). And sure, they often work under Linux, but a) the support is typically, again, half-baked b) Microsoft made the situation much better by the requirements of Vista & up logo programme: to have it, a webcam must support generic USB video device class.

PS. Anyway, my post above was about something else - probably broken hardware, which somehow manages to be stable under Linux ...but it's better to not trust it.

Edited 2013-08-29 18:27 UTC

Reply Parent Score: 2

Neolander Member since:

Replying to your comment in the BB10 topic, which has been tombstoned by the OSnews CMS...

"software to backup SMSs, calendar events and contacts without going through Google's servers (because you can't do that natively)"

What would be its name?

I don't know of a networked SMS backup solution, but to backup them on an SD card, you can use SMS Backup&Restore :

For calendar and contacts, I use ownCloud on my home server, combined with the CalDAV-Sync and CardDAV-Sync apps from Marten Gajda. They are available on Google Play, and also on the AndroidPIT app store if you prefer to pay through PayPal like me.

Edited 2013-08-28 06:18 UTC

Reply Parent Score: 1