Not able to wakeup after suspend on an HP 430

Question

I installed 11.10 (32-bit) with all the updates on HP 430 NoteBook. Everything works fine except the supsend/resume option. The NoteBook goes into suspension, but does not resume back when I press the power or any other button.

I don't know where to start debugging the problem. Could someone provide me pointers?

Answer 1

The best place to start debugging this is the community wiki.

Some general pointers:

1. Some suspend issues are due to buggy BIOS's - incorrect ACPI information is being passed to the kernel and thus preventing resume.
2. Some BIOS's need to have their "S3" setting enabled - S3: Suspend to RAM - it is worth having a look through the bios settings for a similarly named option.
3. Have a look at the MythTV ACPI wiki - some useful reading there. You may or may not pm-utils package.
4. Have a look at the suspend log to see if there are any obvious errors or issues: /var/log/pm-suspend.log
5. There are some good comments on Code-Central for a potential solution for some laptops - looking through the comments, some people have reported that the solution there works for 11.10 users.
6. Whilst not undertaken likely - look at the HP website for your BIOS release notes. Good manufacturers such as HP regularly issue BIOS updates. If the release notes mention hibernate/suspend issues, then maybe a BIOS update will resolve your issue