2012/8/5 matt <[email protected]>: > On 08/03/12 23:39, 乔楚 wrote: >> >> 2012/8/3 Zack Breckenridge <[email protected]>: >>> >>> First of all, let me note that the Kernel config file I posted was for >>> 10.0-CURRENT (a few weeks back now though). >>> >>> I've been looking into it, but still haven't developed a patch yet. I >>> have verified that the screen blanking issue, on my hardware, occurs >>> somewhere in the vm86 mode emulation code (which is how VESA is >>> implemented on amd64), ultimately called by vesa_bios_post(), which is >>> called in turn by vesa_load_state() on resume [see: >>> http://fxr.watson.org/fxr/source/dev/fb/vesa.c?im=3#L1497]. >>> vesa_bios_post() ultimately calls x86bios_call() [see: >>> http://fxr.watson.org/fxr/source/compat/x86bios/x86bios.c?im=10#L584] >>> and emulates the real mode VESA "initialization" code with a call to >>> x86emu_exec_call(). >>> >>> I think in order to figure out whats going on from here I will have to >>> do some DDB scripting and capture the output. I don't believe remote >>> debugging will be possible with my hardware (no serial, no >>> firewire)... Anyway, I'm working on it. >>> >>> So to verify that we are having the same issue, you can take the >>> following steps: >>> >>> 1) build a kernel with debugging and VESA enabled: >>> options VESA >>> options KDB >>> options DDB >>> 2) disable X, boot into the console and issue the following commands: >>> # sysctl debug.acpi.suspend_bounce=1 >>> # sysctl debug.kdb.enter=1 >>> db> break x86emu_exec_call >>> db> c >>> # zzz >>> [you should hit the breakpoint] >>> db> bt >>> x86emu_exec_call() ... >>> vesa_bios_post() ... >>> ... rest of backtrace ... >>> db> c >>> 3) after hitting that last c, your screen should go black. Then you >>> should be able to type "reboot" and reboot cleanly >> >> My screen go black, but type "reboot" no effect. I can be sure to type >> "reboot" and return. >> LED status: >> 1. Disk LED is light, and off at a moment. >> 2. "Z" LED is light, Battary and power LED is light. >> 3. Wifi LED is light. >> >>> I'm pretty sure that if you get the same results, we are having the >>> same issue, though I can make no guarantees. >>> >>> >> When I shutdown from KDE, or type shutdown -p now from console, my >> laptor can't shutdown complete. >> The battary LED is light alawys, others LED is off, and vents of the >> laptor has been blowing hot air. >> _______________________________________________ >> [email protected] mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-acpi >> To unsubscribe, send any mail to "[email protected]" >> > Honest Qiao: Regarding hot air, are you running powerd? Try "powerd -a > adaptive -b adaptive" as root and wait 5 minutes to see if the hot air > stops. If it works, try "man powerd" for installation instructions. Lenovo > laptops are thermally designed for low CPU utilization. I can almost boil > water on mine during buildworld. Without powerd, they run at full thermal > profile and act as excellent hand warmers. > > Zack: Regarding remote debugging, do you have an expresscard/cardbus/etc > slot? Although hard to find you may be able to find a firewire card for > that. Not sure if that would work or not...same goes for a USB->Serial > console, my guess is that it wouldn't work? > > Matt
Regarding powerd: I know powerd. I also set it autostart in rc.conf: powerd_enable="YES" powerd_flags="-a adaptive -b adaptive" And I know that sysctl named dev.cpu.0.freq will change between 333 to 2333 with system load. But, When I shutdown the system, the battery indicator finally closed, the fan also continue to operate; Because the fan is in operation, and blow hot air, indicating that the CPU does not really stop working. So my system did not really close.If I do not press the power button to force shut down the power supply, the battery LED is always on, whether connected to AC power. If I accidentally put it in a laptor bag, he will become hot. Regarding extend slot: Lenovo thinkpad x201 only has USB slot. It hasn't Serial slot. I also think that a USB => serial can not be with the remote debugging. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-acpi To unsubscribe, send any mail to "[email protected]"
