Date: Sat, 3 Jan 2004 02:18:24 +0100 From: Peter Schuller <peter.schuller@infidyne.com> To: t12 <donnie@opus.bloomcounty.org>, freebsd-mobile@freebsd.org Subject: Re: thinkpad t41, acpi + ICH4 woes Message-ID: <200401030218.24812.peter.schuller@infidyne.com> In-Reply-To: <20040102203423.GA8924@bloomcounty.org> References: <20040102203423.GA8924@bloomcounty.org>
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> I recently got a new thinkpad t41 (23739FU), and have been working on > FreeBSD 5.2-RC2. Everything has been excelent, except of course for > suspend/resume. T40p here. > In both ACPI and APM suspends, I get a hang on resume. With APM, > occasionally it would resume safely. This appears to be a common problem, > across multiple fbsd releases. I've been tinkering with that ata driver, > which seems to be at least involved with the problems. I'm at an impasse at > this point, and am wondering if anyone would like to help, or has input. Based on the rest of the message you seems to have a lot more of a clue about this than me, but just in case: If you are running apmd, try turning it off. I am basing this on a gut feeling based on trial-and error, but I believe the hang happens if there is disk activity during the suspend process. apmd tends to create such activity. Having apmd running with a config where it doesn't do anything was not a problem, but when adding some pre/post-processing it would hang. Disabling apmd fixes this for me. I also had to patch the em driver in order for em0 to survive the suspend/resume. Dunno if the t41 has the same nic though. -- / Peter Schuller, InfiDyne Technologies HB PGP userID: 0xE9758B7D or 'Peter Schuller <peter.schuller@infidyne.com>' Key retrieval: Send an E-Mail to getpgpkey@scode.org E-Mail: peter.schuller@infidyne.com Web: http://www.scode.org
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