Installing Vista has stopped XP standby working

pealy

I had XP running fine on my laptop, closing the lid went to standby, opening it up went back into XP fine. I was happy..

I installed Vista Ultimate onto a seperate partition, all went fine but Sleep doesn't work properly (when I open the lid back up, the laptop restarts rather than waking up). The internet is riddled with people having the same problem so I know I'm not alone. Not too bothered..

But, XP no longer comes out of Standby properly, it does the same as Vista, it restarts the laptop and asks asbout safe mode as if it didn't shut down properly. This is something I really want to fix.

I've made sure the bios is up to date (accoding to Dell web site). Is there anything obvious I'm missing? I thought the Vista issue was likely to be video driver related but this shouldn't affect my XP install should it? There's clearly been some changes to the windows boot menu, it looks very different to the old O/S choice screen I'm used to on dual boot machines.

Dell Inspiron 6400, 2GB RAM, XP Pro, Vista Ultimate.

Any help appreciated

fwor

You're right - a change to the driver on the Vista partition shouldn't affect XP at all.

AFAIK, the only things common to both are the BIOS settings, the MBR and the boot loader.

There's no reason to suppose that Vista would have changed this, but have you checked in the BIOS that the ACPI suspend type is set to STR? I could never get it to work with POS.

If Vista has done something strange to the MBR, might be worth running the Recovery Console from an XP install disk and using the fixmbr utility?

Finally - for the desperate only - you could try replacing the current boot loader with GRUB. I'm fairly sure that the Super Grub Boot Disk will do this for multiple Windows partitions, even if no Linux partitions are present.

http://www.supergrubdisk.org/

(BTW - I would ~definitely~ take a backup image of the HDD before trying the last one!)

pealy

fwor wrote: »

You're right - a change to the driver on the Vista partition shouldn't affect XP at all.

Thanks for the ideas, much appreciated but definitely a job for the weekend I think!
I've found that hibernate works okay so can cope for a couple of days.