From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ingo Humann <ingo_humann@gmx.de>
Subject: DMI information for Dell Latitude E4300
Date: Tue, 09 Dec 2008 15:32:38 +0100
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Hello!

I quote this from the output of the dmesg command:

[    0.496724] ACPI: EC: Look up EC in DSDT
[    0.496909] ACPI: BIOS _OSI(Linux) query ignored
[    0.496912] ACPI: DMI System Vendor: Dell Inc.
[    0.496915] ACPI: DMI Product Name: Latitude E4300
[    0.496918] ACPI: DMI Product Version:
[    0.496920] ACPI: DMI Board Name: 0MR506
[    0.496922] ACPI: DMI BIOS Vendor: Dell Inc.
[    0.496924] ACPI: DMI BIOS Date: 10/10/2008
[    0.496927] ACPI: Please send DMI info above to 
linux-acpi@vger.kernel.org
[    0.496930] ACPI: If "acpi_osi=Linux" works better, please notify 
linux-acpi@vger.kernel.org

The kernel option acpi_osi=Linux works better for me. When I use it, I 
can use suspend to ram without complications. Without this kernel option 
the computer freezes after awaking.

More informations about my Linux system:

uname -a:
Linux latitude 2.6.27-9-generic #1 SMP Thu Nov 20 22:15:32 UTC 2008 
x86_64 GNU/Linux

/etc/issue:
Ubuntu 8.10

Other kernel options:
i8042.reset vga=0x0362


Regards from Germany
Ingo Humann