Paulo: I have no idea whether it saves any power or how much - I'll have to sit down and measure it. There might also be side effects but I haven't seen its effect on shutdown mentioned elsewhere.
Adam: Are you sure? I have an EeePC 900 too and see the same results as Paulo. Remember it's not enough to "just" enable powersaving - you also have to set a timeout in seconds too. Since I have the ability to use modules compiled out of my kernel I can be sure snd_hda_intel is not being unloaded at any point and my machine powers off : ) On a related note my EeePC hits the C3 state for up to 100 ms (but then I'm using this timeout setting in sysfs/Kconfig for snd_hda). However according to my power meter this does not save me a watt of power (its resolution is only to a watt though so if it's saving 0.5W I wouldn't notice). -- snd_hda_intel fails to unload (or unload correctly) on shut down; laptop fails to halt https://bugs.launchpad.net/bugs/126140 You received this bug notification because you are a member of Ubuntu EEEPC, which is a direct subscriber. Status in Ubuntu: Invalid Status in “linux” source package in Ubuntu: Triaged Status in “linux-source-2.6.22” source package in Ubuntu: Invalid Status in Fedora: Confirmed Bug description: Binary package hint: kernel-image-2.6.22-8-generic-di I chose to file this under the current Gutsy kernel, but this issue has plagued me since Dapper. Ever since Dapper my laptop wouldn't shut down properly. I would get the infamous "will now halt" message, but my computer would never completely shut down. Today I found the culprit: the snd_hda_intel module. If I manually remove this module (rmmod snd_hda_intel) before shutting down everything works perfectly. My laptop is a Toshiba Satellite A105-S2716. I also came across a post from bug #43961 that confirms the same behavior. Coincidentally, he has the same model laptop I do: https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.15/+bug/43961/comments/157 Workaround: To work around this problem, I created an init.d script to run at shutdown. All the script does is remove the snd_hda_intel module at shutdown (rmmod snd-hda-intel) and things work smoothly. See this thread for more detail: http://ubuntuforums.org/showthread.php?t=500268 _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-eeepc Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-eeepc More help : https://help.launchpad.net/ListHelp
