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SuspendSuspendPosted Sep 26, 2009 6:43 UTC (Sat) by job (guest, #670)In reply to: New column: Ask a kernel developer by nix Parent article: New column: Ask a kernel developer
Here's another data point for you: I suspend-to-RAM my Thinkpad about four or five times a day and it works perfectly. Well, almost, the exception is the iwl3945 driver which crashes hard after a number of cycles (actually it's enough to 'ifconfig wlan0 down' and then 'up' a number of times) which means when the link state is wrong it's time to reboot (it's a distribution kernel and not mainline). Anyway, some hardware works better than others and that may be a good thing to keep in mind when shopping for hardware.
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Suspend Posted Sep 27, 2009 10:13 UTC (Sun) by nix (subscriber, #2304) [Link]
Yes, well, laptops are likelier to work with suspend-to-RAM than other
systems. I suspend several desktops to disk to save power: on not a single one of them does suspend-to-RAM work, because it requires BIOS work that the desktop vendors didn't do. Requiring things of BIOSes is always risky (as we all know).
Suspend Posted Sep 27, 2009 20:19 UTC (Sun) by khc (subscriber, #45209) [Link]
better yet, my desktop with 2.6.31 used to suspend to ram correctly, and after some distro updates (ubuntu 9.10) now it always fails. So it's is quite fragile even when it works.
Suspend Posted Sep 27, 2009 13:15 UTC (Sun) by xoddam (subscriber, #2322) [Link]
I'm laughing! I have observed the same problem once or twice (also more irritatingly, a symptom similar to the old bug of not aging networks whilst suspended so my machine tries to hook up with the work network when I open it at home and vice versa).
I find rmmod works, though IIRC is not guaranteed to. So I happily rmmod iwlagn && insmod iwlagn and wireless lives indefinitely.
The only thing that crashes on me after extended use now is Firefox with its many tabs and sandboxed proprietary Flash player. Yet it all comes back in more-or-less the same state when I restart it, thanks to sqlite. Crash-only software rules, ok!
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