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Conference giadev::decstation

Title:DECstation PC Conference
Notice:register note 2, see notes 3 & 4
Moderator:TARKIN::LININD
Created:Tue Jan 10 1989
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:7470
Total number of notes:34994

7351.0. "Celebris GLST power management problem" by ANNECY::AEO452::KENNEALY_R () Wed Feb 12 1997 07:50

Hello,

I have a problem with Power Management on a PC, a Celebris 5120 GL ST.

First I was running under the originally installed BIOS (I'm sorry, but I
don't know the version number of the original BIOS). With this BIOS version
power management worked properly (i.e. the disks spun down when the computer
went to sleep), but I had a problem with the whole system hanging when a
modem interrupt occured while the computer was sleeping. (See the following
notes: 2352 of Windows 95, 7031 of DECSTATION and 3696 of EuroPC.)

Various people suggested that the problem would go away if I upgraded to the
latest BIOS available from the appropriate Website. So I upgraded to this BIOS.
Unfortunately, now Power Management now does not work at all !

I have configured the setup as Plug and Play OS, and I have enabled Power
Management. This configuration however does NOT cause the disks to spin down
once the computer goes into sleep mode.

I have found that if I run the application "Find New Hardware" from the
Control Panel, and then suspend the machine immediately afterwards, power
management works properly once (i.e. the disks spin down as they should);
however when the computer wakes up, power management ceases to work again.

Does anybody have any ideas as to how I can rectify this problem ?

Thanks in advance

Roger
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7351.1similar?FIEVEL::FILGATEBruce Filgate SHR3-2/W4 237-6452Wed Feb 12 1997 08:1817
Likewise my Celebris hangs when it is in power management too long. In my
case the bios is 1.03, the os is Windows 95 4.00.950a.  I have had to
disable the power down features in the bios power management section, or
else the machine is hung every morning.

By hung I mean that the screen is dark and will not relight with the 
keyboard or the mouse.  The only recovery that seems to work is to recycle
the Celebris power switch.

This behavior held across a mother board replacement (the floppy controller
failed).  I take this as a good indication that this is not a unique
motherboard problem with a small sample of machines.

With the bios power management turned off, and the disk spinning all the time
the system appears to be fine.

Bruce
7351.2ME TOO !!!ODIXIE::POLLARDWed Feb 12 1997 15:245
      Bruce you and the rest of us have seen this problem as well. I have
    had my hang so many times enabled, it corrupted my registry. So I
    shut the darn thing off rather than fight the power management issue.
    
    Regards
7351.3Time for "Official" problem reportSTAR::JACOBIPaul A. Jacobi - OpenVMS DevelopmentWed Mar 05 1997 09:4326
    I have been using a new Celebris GL 6200 (tower) with Windows95 and a
    21" monitor (PCXAV-WZ) @ 1600x1200 75Hz.  Since there was no .INF file
    included with this monitor, I have selected MGA Monitor "Diamond Pro
    21TX - Millennium"

    With power management enabled in the BIOS and in display properties,
    the system appears to power down correctly.  About half the time, it
    wakes up correctly.  However, sometimes, the system appears to wake up
    with disk disk activity and a brief resync of the monitor, but then the
    monitor looses sync and the system appears to be hung with a black
    screen.  The only way to recover is to power cycle the system.

    Phoenix BIOS revision is 4.05.  Celebris BIOS revision is 1.04.  Are
    there any later revisions available?

    MGA PowerDesk Version is 3.14.028.  I know that there are later
    revision available from Matrox WWW site, but are they compatible with
    OEM version of MGA?

    Since a number of people seem to be having similar problems with power
    management, how can I file an official problem report?


    							-Paul

7351.4use mga.mon fileHOTAIR::SLOMSKIWed Mar 05 1997 11:4412
    For the Matrox video for win95 on celebris GL, although not necessarily
    qualified, you can use drivers off of matrox website
    http://www.matrox.com.
    
    In addition , please replace the standard MGA.mon file with a custom
    MGA.mon file for digital monitors .  you can find this at 
    http://pcbu.ako.dec.com
    
    VMCEGL19.EXE - Celebris GL 5xxx Matrox MGA.MON file for Win95 [25K
    10/02/96]
    
    Then report back results (or email me hotair::slomski)
7351.5Where is MGM.MONRDGENG::rasmodem8.reo.dec.com::whitwoodWed Apr 30 1997 20:556
Please could you be a bit more specific as to where the mgm.mon file is. 
I've been to the site but couldnt find it.

Cheers

Nigel Whitwood
7351.6QUARK::LIONELFree advice is worth every centWed Apr 30 1997 22:484
    That's MGA.MON.  By default it's in Program Files\Matrox MGA
    PowerDesk\Mon (or at least it is on my system.)
    
    				Steve