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Thread: Sleep (suspend?) freezes mac

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  1. #1
    Join Date
    Jan 2007
    Beans
    28

    Sleep (suspend?) freezes mac

    Hi,
    I'm using an iMac (12,2) with Ubuntu 12.04 64 bit, standard kernel (3.2) and latest AMD drivers (downloaded from AMD site).
    Sometimes when monitor turns off (because it went in sleep after x minutes) I can't turn the monitor on anymore.
    Sometimes it works (moving mouse), sometimes don't. I don't know if it is related to some level of "sleep": seems (but didn't verify) that if it is in sleep mode for 5 minutes, I can wake it up, but if it is in sleep for an hour or so, I can't.
    Also ALT-F1/F2/... doesn't switch to virtual console.
    I've installed ssh to see at least if it is a display problem or a completely freeze of machine, just trying ssh'ing into, I'll let you know.
    I don't remember to have this problem using opensource Radeon driver, so this seems related on these drivers.
    Does this problem happen to you too?
    Thanks in advance.

  2. #2
    Join Date
    Jan 2011
    Beans
    470

    Re: Sleep (suspend?) freezes mac

    @scognito:

    I can confirm the issue with, is it just Mac's?, failing to revive from "suspend" . . . I've posted questions about this and have yet to receive any solutions, but it seems like a Linux or Debian issue as I've had a number of different Debian based systems on three computers, an iMac G4 w/XuLu 12, iBook G4 w/Debian Wheezy, and a MBPro w/LMDE all set up dual boot with OSX. Whenever I'm finished using the Xu/Lu, or any of the Linux side partitions I have to restart and boot back into OSX, otherwise I have to shut the computers down. The PPC FAQ sections on this problem make it seem like it is a deficiency of RAM that is the problem, but the MBPro has plenty of RAM and still "Suspend" is not something that can "wake up" with the tap of a key or click of a mouse. It would be nice to see if there is a simple solution to this problem.

    On the "F-keys" not working, I saw a post here yesterday where somebody said that the "new aluminum Apple keyboard doesn't do the F-key commands" . . . I can confirm that as well, as I have the newer aluminum keyboard on my G4 iMac . . . and have yet to get the F-key commands to work as advertised . . . .

    e.e.p.

  3. #3
    Join Date
    Jan 2007
    Beans
    28

    Re: Sleep (suspend?) freezes mac

    As for the F-keys they works like a charm. What I mean is that they don't work when the machine freezes.
    I'll investigate further, thanks!

  4. #4
    Join Date
    Jan 2011
    Beans
    470

    Re: Sleep (suspend?) freezes mac

    @scognito:

    Ah, OK, well anyway, the main problem is this failure to revive from suspend, it's less important whether all or none of the keys work if all you/I can see is a black screen that is unresponsive to any inputs except the "Off" button . . . requiring re-booting each time that the Linux side is used . . . . And that makes it "slow" . . . yes?

    e.e.p.

  5. #5
    Join Date
    Mar 2011
    Location
    Cheyenne, WY USA
    Beans
    42
    Distro
    Lubuntu 13.04 Raring Ringtail

    Re: Sleep (suspend?) freezes mac

    Its not just Mac. Many machines have problems with both suspend and hibernate. Granted, I am setting up 5-10 year old computers for the most part; but it definately crosses through AMD, Pentium, PowerPC... Ive taken to removing both options from the Power Menu so there is no chance anyone will accidently do either.

    Code:
    gksudo gedit /usr/share/polkit-1/actions/org.freedesktop.upower.policy

    There are only two sections in this file; the first for Suspend, the next for Hibernate.
    Almost at the end of each section is a line that reads:<allow_active>yes</allow_active>
    Change "yes" to "no" in the 1st section to disable the Suspend option.
    <allow_active>no</allow_active>
    ------------
    <allow_active>yes</allow_active>
    Change "yes" to "no" in the 2nd section to disable the Hibernate option.
    <allow_active>no</allow_active>

    Suspend and/or Hibernate will be gone out of the Power menu whenever you restart. If you want to change back, just change the no to yes again.
    "Freely you have received, freely give" Matthew 10:8

  6. #6
    Join Date
    Jan 2011
    Beans
    470

    Re: Sleep (suspend?) freezes mac

    @c4c:

    I'm not sure if the OP wants to turn off the feature, but as the SP (second poster) I appreciate the reply and the insights . . . certainly the iMac & iBook are in the 5 - 10 + year range . . . . Personally, I'd like to "fix" the suspend feature . . . but since I now know that "suspend" probably doesn't work I can just not click on it . . . .

    e.e.p.

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