Previous 1 2 3 4 Next 59 Replies Latest reply: Jun 1, 2008 12:20 PM by Djiwondee Go to original post
  • SVPirate Level 1 Level 1 (10 points)
    I have the same problem described by others. My iMac G4 sleeps fine but when you wake it the screen comes on with a mottled green pattern on that slowly fades to solid white. I can hear the hard drive doing stuff in the background, and Time Machine kicked in when I woke it up this morning but every time the machine is unusable because I can't see anything.

    NB for those yanking the plug out of the back of their iMac to get it to power off, STOP DOING IT, it's not good for the hard disk. You can force any Mac to shutdown by holding the POWER button (on the back-left on the G4 iMac) for 4-5secs. This does a safe power off, allowing hard disk operations to stop before the power cuts out.

    I've also had a similar issue since I got the Mac Pro, but I thought it was just my Samsung LCD screen on that. When the monitor goes in to DPMS sleep mode, I have to turn it off, wake the Mac Pro, then turn it back on because otherwise the screen fills with garbage, but THAT machine sleeps and wakes fine with no video issues. DPMS monitor sleep works flawlessly in Windows XP and Windows Vista too so I guess it's OS X's NVIDIA drivers, I was hoping 10.5 might have a fix for it but it appears not.

    In both cases I suspect the video drivers are at fault.

    Message was edited by: SVPirate
  • pwbrenner Level 1 Level 1 (10 points)
    For the record I'm having the same problem with my 17" FP 800 mhz imac. Put it to sleep and the monitor fades to white, try to wake it back up and the computer is on, clicking randomly results in some unhappy beeping noises eventually, but the screen stays black. Trying to sleep the monitor doesn't work at all.

    I'll probably just downgrade back to 10.4 and give up hope, but you can be sure I'll be watching this thread closely. Fingers crossed.
  • Nick Collingridge Level 1 Level 1 (75 points)
    Sounds wonderful, but although I have a Radeon 9600 Pro and the problems you describe (not waking up properly after sleep), I can't locate the ATI ROM Xtender file in any version of Tiger I have looked at. Specifically I have checked 10.4.9 PPC and 10.4.10 Intel, together with inside a PPC Combo 10.4.10 updater (using Pacifist) and inside a number of other updaters and I can't find this file anywhere. Where EXACTLY (location and Tiger version/architecture) is this file to be found?

    TIA,

    Nick
  • Thomas von Eyben Level 1 Level 1 (50 points)
    Me too am having a FP 800 MHz iMac.
    I think it has a NVIDIA GeForce4 MX AGP card, so I'll probably compare what drivers are in Tiger and compare it to Leopard to see if the ATI trick mentioned earlier in this thread will work.
  • Thomas von Eyben Level 1 Level 1 (50 points)
    Hmm - no sings of any NVIDIA.kext's at least by name (Tiger as well as Leopard!) - what KEXT does the NVIDIA card use???
  • Thomas von Eyben Level 1 Level 1 (50 points)
    Tiger:~ admin$ ls -l /System/Library/Extensions/ | grep GeForce
    drwxr-xr-x 3 root wheel 102 Mar 26 2005 GeForce.kext
    drwxr-xr-x 3 root wheel 102 Mar 26 2005 GeForce2MXGLDriver.bundle
    drwxr-xr-x 3 root wheel 102 Mar 26 2005 GeForce3GLDriver.bundle
    drwxr-xr-x 3 root wheel 102 Mar 26 2005 GeForceFXGLDriver.bundle
    drwxr-xr-x 3 root wheel 102 Mar 26 2005 GeForceGA.plugin
    drwxr-xr-x 3 root wheel 102 Oct 22 2005 GeForceVADriver.bundle






    Leopard:~ tve$ ls -l /System/Library/Extensions/ | grep GeForce
    drwxr-xr-x 3 root wheel 102 26 Mar 2005 GeForce.kext
    drwxr-xr-x 3 root wheel 102 26 Mar 2005 GeForce2MXGLDriver.bundle
    drwxr-xr-x 3 root wheel 102 26 Mar 2005 GeForce3GLDriver.bundle
    drwxr-xr-x 3 root wheel 102 12 Okt 03:51 GeForce8xxxGLDriver.bundle
    drwxr-xr-x 3 root wheel 102 26 Mar 2005 GeForceFXGLDriver.bundle
    drwxr-xr-x 3 root wheel 102 26 Mar 2005 GeForceGA.plugin
    drwxr-xr-x 3 root wheel 102 4 Jan 2006 GeForceVADriver.bundle



    not a big difference (it's probably best in Leopard…)
  • pattemac Level 1 Level 1 (0 points)
    Great, this solved my problems.

    thank you!
  • dagent23 Level 1 Level 1 (0 points)
    FYI: The topic of the iMac G4 800 sleep problem is also being discussed at http://forum.insanelymac.com/index.php?showtopic=69135&pid=492042&st=0&#entry492 042
  • Shamus McCormick Level 1 Level 1 (0 points)
    Has this been fixed with the 10.5.1 update?

    I'd like to be able to put Leopard back on my iMac G4.
  • DualShock Level 1 Level 1 (10 points)
    I just tried it on my 800 MHz iMac G4. Upgrade install of 10.5 over 10.4.11, then applied 10.5.1.

    Same sleeping problem with 10.5. Graphics corruption galore when waking from sleep. Also, when the display goes to sleep (machine still on), it doesn't turn off. Instead, whatever was on the screen stays on the screen, and the brightness goes to full.

    Let's hope for 10.5.2.
  • Russa Level 4 Level 4 (1,315 points)
    I was having a similar sleep problem and deleted the power management plist, then rebooted.

    This plist is located in /library/preferences/systemconfiguration. It is called com.apple.PowerManagement.plist

    Hope this helps.
  • DualShock Level 1 Level 1 (10 points)
    Russa,

    Did you try this on an 800 mhz imac G4?
  • Russa Level 4 Level 4 (1,315 points)
    No, I did this on my MBP 2.4GHz. However, my iMac G4 does not exhibit any sleep problem.
  • Daniel Brown Level 2 Level 2 (430 points)
    Worked for me too, thank you VERY much.
  • Jeff Bailey Level 2 Level 2 (210 points)
    Who knows what the possibilities are for upgrading the video card in the iMac G4/800? There has to be some overlap in the list of compatible video cards between the iMac and Leopard. I'd be willing to give it a try, but I know squat about video cards.