Difference between revisions of "Installing Ubuntu on a ThinkPad X31"

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 I installed hoary (Ubuntu "unstable") because of some specific needs. Netherless,
 this article should apply to Ubuntu Ubuntu 4.10 "The Warty Warthog" too.
+===Choosing between APM and ACPI===
+Right now there is a crucial feature not working with ACPI on linux (2.6.9): suspend to ram does not switch off the LCD backlight.
+Ubuntu ships ACPI enabled, but without syspend to disk configuration. In effect there ist no working suspend solution
+working out of the box.
+Simply disableing ACPI at boottime activates APM which works fine with suspend to ram and suspend to disk.
 ===Installing without cdrom or floppy===
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 Follow the instructions at [http://www.ubuntulinux.org/support UbuntuSupport]: [http://www.ubuntulinux.org/support/documentation/howto/helpcenterhowto.2004-11-26.2137127791/howto_view Netboot remarks ]
-===Choosing between APM and ACPI===
+===Disableing ACPI===
+To disable ACPI an activate APM boot your kernel with acpi=off
-Right now there is a crucial feature not working with ACPI: suspend to ram does not switch off the LCD backlight.
+ ...describe how to edit /boot/grub/menu.lst...
-Ubuntu ships ACPI enabled, but without syspend to disk configuration. In effect shere ist no working suspend solution
-working out of the box.

Revision as of 23:31, 5 December 2004