On 09/30/2014 01:40 AM, lee wrote: [...] > I think I figured it out: The USB stuff was actually going to sleep and > remained unresponsive once it fell asleep, until a reboot. I used > powertop to disable the power management for USB and didn't have any > further issues since. > > It might be worthwhile to check just to make sure that your disks aren't > disconnected at some time because something goes to sleep ... After your recommendation of powertop I just used it on my mouse and keyboard and could reproduce almost exactly what you describe here: After a while of inactivity, the mouse would no longer respond to moving and I had to click a button in order for it to become active again. The keyboard behaved similar: After a short while, the background-light went off and I had to press a key to re-enable it. Interestingly, when pressing two keys very quickly, one of them was always lost, which is why I reverted the state of mouse and keyboard to "Bad" (as powertop calls it). I have not tried this on the USB disks yet, because I want to avoid yet another rebuild right now, but sooner or later I will try it. [...] >> I do not like Windows either, but it is /common/. This means that if I >> ever lose data and system and need to rely on the backup, it will be a >> great advantage to be able to recover at least the essential parts from >> a Windows machine which is easier to get access to than a Linux machine. > > Even with live DVDs and the like? I have seen systems where none of my live systems would boot (even Memtest86+ sometimes failed to start). On these systems, the installed Windows started without (major) problems. Today, there is also UEFI Secure Boot to consider (I have recently read about a normal laptop where it can not be disabled): I have not tried to make my live systems work on any UEFI system because I do not have a system available for testing. >> Interestingly, I also know of a 512 MB and a 1 GB stick which are old >> and still working. The ones, I saw failing were one 16 GB model and a >> few 2 GB models all of which were built when 16 GB costed less than 40€, >> i.e. they were rather "new". > > Last time I looked into buying an USB stick, I found out that I'd be > better off buying an USB disk because the sticks were so expensive and > their capacity relatively low, so I bought an USB disk. The USB disk > failed shortly after I got it ... It highly depends on what one needs: I use USB sticks solely for data transport where it is typically more important for the stick to be small and shock-resistant. So far, 8 GB have always been enough for my data-transports (mainly PDF documents, source code, etc.) Linux-Fan -- http://masysma.lima-city.de/
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