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posted by LaminatorX on Monday March 24 2014, @12:00AM   Printer-friendly
from the Powwwaaaaahhhhh! dept.

janrinok writes:

From an ARS Technica story:

Linux 3.15, expected to be released in mid-2014, "will feature a large number of ACPI and power management updates" and allow Linux-based computers to suspend and resume faster, Phoronix reported today.

'Visible to users with the Linux 3.15 kernel should be reduced time for system suspend and resuming, thanks to the enabling of more asynchronous threads,' the article said, pointing to a list of changes posted by Rafael Wysocki, an Intel employee who maintains the Linux kernel's core power management code. Basic support for Nvidia's Maxwell architecture is also in the works for Linux 3.15.

 
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  • (Score: 5, Insightful) by everdred on Monday March 24 2014, @03:15AM

    by everdred (110) on Monday March 24 2014, @03:15AM (#20121) Homepage Journal

    With experience across a handful of distros and a handful of laptops over the years, not one has managed to consistently suspend and resume. In some cases, it'll work for a little while, enough to generate a false sense of security, before it ultimately stops. (Thanks to a kernel update? Who knows?)

    I figured those days would finally be behind me with my latest pairing: a ThinkPad and Debian.

    They're embarrassingly not. It's 2014.

    --
    We don't take no shit from a machine.
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  • (Score: 2) by Grishnakh on Monday March 24 2014, @08:55AM

    by Grishnakh (2831) on Monday March 24 2014, @08:55AM (#20187)

    Thinkpads aren't all the same. Is yours all-Intel hardware, or something else? I've had very good results with Linux on both Thinkpads and Dell Latitudes, however in all cases I've used Linux Mint (and previously Kubuntu), and had models with all-Intel hardware. While I usually like to support underdogs, in the computer world, I've found that the more Intel hardware you have, the better, for running Linux. The underdogs are apparently too cheap and lazy to bother supporting Linux on their hardware as Intel does.

    • (Score: 2) by everdred on Monday March 24 2014, @10:35AM

      by everdred (110) on Monday March 24 2014, @10:35AM (#20249) Homepage Journal

      Yep, it's all Intel — ThinkPad X230 with Advanced-N 6205. I selected the component (and for that matter, the ThinkPad) following the same conventional wisdom you mentioned in your comment.

      --
      We don't take no shit from a machine.
      • (Score: 2) by Grishnakh on Monday March 24 2014, @10:58AM

        by Grishnakh (2831) on Monday March 24 2014, @10:58AM (#20264)

        That's interesting, and unfortunate. What distro are you using? Have you tried *Ubuntu or Mint? My laptop is older, however, which is another tactic I use: older hardware seems to have better support since it's been out there longer to have the bugs worked out in software. I have two nearly-identical Dell E6400 laptops (with Intel graphics), one has the Intel 5300 wifi card and the other has the Intel 6250 card.

        • (Score: 2) by everdred on Monday March 24 2014, @03:19PM

          by everdred (110) on Monday March 24 2014, @03:19PM (#20455) Homepage Journal

          You know, I may have incorrectly assumed you were asking about wireless card in your initial question about Intel hardware, but I made that assumption because when a suspend fails on this hardware, it results in the wifi indicator light flashing while the computer becomes completely unresponsive, requiring me to hold down the power button to just kill the power. But that does seem to indicate to me that it's wifi-related, and paired with the Debian requirement (at least I think it's Debian-related) that I provide a wireless firmware file during install, it makes we wary about the reliability of wireless in general. In years of buying laptops with Intel wireless and pairing them with Ubuntu, I don't think I've had wifi problems since, like Ubuntu Breezy.

          I'm sure there's a log I should be looking at, or perhaps I'll need to set up remote logging due to the nature of the way it fails, but I haven't been /so/ annoyed by the problem that I've taken the time to seriously look into fixing it. (Nor have I tried a distro aside from Debian Jessie with this hardware.) I just sigh and kill the power the ~15% of the time this happens.

          It's just the opposite of what I expected from these 'brands': Debian + Intel + ThinkPad. (I definitely appreciate your concerned responses, though!)

          --
          We don't take no shit from a machine.
  • (Score: 2, Interesting) by cosurgi on Monday March 24 2014, @05:51PM

    by cosurgi (272) on Monday March 24 2014, @05:51PM (#20589) Journal

    I concur.

    The only really working suspend & resume was on kernel 2.6.29 with TuxOnIce which was more than four years ago, and the PC had uptime above one year, even though power failures happened once or twice per month (I configured automatic hibernation on signal from UPS). The hibernation never failed.

    It was using tux on ice, which is nearly dead by now. I really wonder why Linus refused to incorporate it into the kernel when the main developer was at top creativity. After the refusal he lost his enthusiasm, and his work slowly stopped. Other, different suspend/resume engines were put into the kernel, and they never worked for me. What a pity.

    --
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    #\ @ ? [adom.de] Colonize Mars [kozicki.pl]
    #
  • (Score: 1) by bill_mcgonigle on Tuesday March 25 2014, @11:10AM

    by bill_mcgonigle (1105) on Tuesday March 25 2014, @11:10AM (#20985)

    (Thanks to a kernel update? Who knows?)

    Yes, exactly. For pete's sake, grub2 was a complete rewrite and it still doesn't know how to look at a swap partition for a hibernate signature and boot the matching kernel, or at the very least know what its previous default was.

    Marking P1, CRITICAL, tag: dataloss. Seriously.