Date: Thu, 4 Nov 2004 17:38:21 -0500 From: "Michael Scheidell" <scheidell@secnap.net> To: <freebsd-acpi@freebsd.org> Subject: Had problems with 4.10 and Dell 750l fixed Message-ID: <B3BCAF4246A8A84983A80DAB50FE7242248936@secnap2.secnap.com>
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I had some problems with a Dell 750 and power management. (it rebooted instead of powering off) I THINK it worked with 4_10_RELEASE build, but the 4_10 security release and RELENG_4 wouldn't power down the computer. Kernel compiled with any combination of apm0 (nexus, disable, flags, etc) didn't seem to work. Dmesg didn't find any apm devices. So, I tried with the acpica option in kernel. When I pressed the power off button, it pretended to power off, go to 'ACPI Power off'.. Hung there for 10 seconds then said 'failed. Timeout' and rebooted. Likewise, shutdown -p did similar, but instead of rebooting, ended with 'press any key to reboot'.=20 Now, with a headless box, you sure want the ability to turn it off without a user needing to watch a CRT, so I spent some time googling (to no avail) and testing. I finally set this in /etc/sysctl.conf: hw.acpi.disable_on_poweroff=3D0 (it was 1, just like every other box I have seen) Now it works. Again, whats funny is that it USED TO WORK FINE, and I don't know why it stopped. Ps, I finally found =20 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/acpi-debug.htm l It suggests hw.acpi.disable_on_poweroff=3D0 So, to help debugging and fixing, here are specs: Dell poweredge 750 2.8G P4, A02 Bios. (no way to change anything apm or acpi in bios that I can see) hw.acpi.supported_sleep_state: S4 S5 hw.acpi.power_button_state: S5 hw.acpi.sleep_button_state: S1 hw.acpi.lid_switch_state: S1 hw.acpi.standby_state: S1 hw.acpi.suspend_state: S3 hw.acpi.sleep_delay: 600 hw.acpi.s4bios: 1 hw.acpi.verbose: 0 hw.acpi.disable_on_poweroff: 1 Ascidump: www.secnap.com/private/acpi.txt --=20 Michael Scheidell, CTO SECNAP Network Security 561-999-5000 x 1131 www.secnap.com
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