Hello everybody!
I have a Samsung R510 laptop (with an Intel Core 2 Duo processor)
which currently runs a 32-bit version of Linux Mint 7. Yesterday I
decided to give a try to the 64-bit edition of Ubuntu 9.10 since
everybody says its awesome. So I downloaded the iso image, burned it
to a disc and tried to boot from it.
When I selected the "try ubuntu without installing it" option, the
screen went blank for a few seconds and then the laptop rebooted.
Then I tried to boot a 64-bit verison of openSUSE 11.0 from a CD -
with the same result! The laptop just restarted when an attempt was
made to load the kernel.
I understood that it had to be some kind of distro-independent
hardware-related issue.
Well, to make the long story short, after some googling, I found two
workarounds for this:
1. Use the acpi=off option during boot. The system started normally,
but, of course, none of
the acpi-related stuff worked - couldn't even monitor the battery
status, which was
totally unacceptable for a laptop.
2. Use the mem=4096m during boot. Everything works fine, but the system sees
only 3 GB of RAM, while I have 4 GB of RAM.
Now, I want to a 64-bit Linux and have both 4 GB of RAM and working
ACPI, if possible. So I'd appreciate any advice on that. Thanks for
the help ahead of time :-)
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