iRant » Blog Archive » Suspend to RAM Issues on Fedora 7

Suspend to RAM Issues on Fedora 7

I accidentally switched my laptop to suspend to RAM last night and when I reached home, it safely woke up. I thought an update fixed it but when I tried again this morning, it didn’t work again. By the way, ACPI works better now (the screen actually switches off instead of a black display with the backlight still on).

liquidat posted a workaround. Let me summarize it.

A kernel panic happens when the machine goes to resume. The error is caused by a bug in the Firewire Open Host Controller Interface (fw_ohci). This may be an isolated case for other users so you might need to test it by issuing modprobe -r -v --first-time fw_ohci and suspending then resuming the machine. If the machine was able to resume, then fw_ohci is the cause.

The workaround is to append SUSPEND_MODULES="fw_ohci fw_core" to /etc/pm/config.d/unload_modules (many thanks to Alex Tucker and liquidat).

This entry was posted on Tuesday, June 19th, 2007 at 08.59.23 and is filed under Journals of a Penguin. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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jploh 1 year ago 1 point
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Thanks! I'll try it again. The problem with using that kernel, though, is that I can't use wifi.

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http://blog.jploh.com

Kamal Wickramanayake 1 year ago 1 point
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Latest kernel (kernel-2.6.22.1-33.fc7) seems to be working properly. I got suspend/hibernate both working properly without any further modifications with this kernel although all my previous attempts failed with previous kernels.

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http://www.swview.org

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