On Friday 20 January 2012 17:55:57 Pali Rohár wrote: > On Friday 20 January 2012 11:28:59 joeyli wrote: > > 於 五，2012-01-20 於 11:12 +0800，joeyli 提到： > > > > > Hi Pali, > > > > > > Sorry for I am late reply you. > > > > > > 於 二，2012-01-17 於 19:10 +0100，Pali Rohár 提到： > > > > > > > On Wednesday 21 December 2011 12:45:07 Pali Rohár wrote: > > > > > Hello, > > > > > > > > > > I tried to boot with all 3 strings in acpi_os_name, but nothing was > > > > > changed. I'm attaching dmesg outputs, one from BIOS mode, one from > > > > > UEFI mode. Both are with "Microsoft Windows NT". > > > > > > > > Did you looked at my logs? > > > > > > I checked your dmesg log, found the acpi_os_name kernel parameter is : > > > > > > [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.2.0-4-generic > > > root=UUIDNc6272a-8551-40f3-a1b1-3e10984f3e69 ro pcie_aspm=force > > > acpi.debug_level=0x2 acpi.debug_layer=0xFFFFFFFF "acpi_os_name=Microsoft > > > Windows NT" splash vt.handoff=7 > > > > > > We still need by-pass the os name check in DSDT when test function key, > > > > > > please help to feed: > > > acpi_os_name="Windows 2009" > > > > > > And, > > > looks like the acpi debug level not enough, please kindly change acpi > > > > > > debug parameter to: > > > acpi.debug_level=0xF acpi.debug_layer=0xFFFFFFFF log_buf_len=5M > > > > > > summary: > > > acpi.debug_level=0xF acpi.debug_layer=0xFFFFFFFF log_buf_len=5M > > > acpi_os_name="Windows 2009" > > > > Forgot remind, > > please remember press brightness function key a couple of times before > > you dump the dmesg and messages log. > > > > > > Thanks a lot! > > Joey Lee > > Hello, > > there was no acpi log, so I recompiled ubuntu kernel with > CONFIG_ACPI_DEBUG=y and CONFIG_ACPI_DEBUG_FUNC_TRACE. Then I started kernel > with your params. > > Now I'm attaching very long debug output. I belive it will be now usefull. > > Pressing brightness keys did not show anything in log. > > After writing 0 to /sys/class/backlight/acpi_video0/brightness in log > appear: [ 57.675070] [ACPI Debug] Integer 0x000000000000000B > ... > > And after writing 10: > [ 99.865208] [ACPI Debug] Integer 0x0000000000000048 > [ 99.865295] evmisc-0120 [4294967289] ev_queue_notify_reques: > Dispatching Notify on [DGFX] Node ffff880136246c80 Value 0xD0 (**Device > Specific**) [ 99.865350] video-1474 [4294967289] video_bus_notify > : Unsupported event [0xd0] Do you need more logs? Or is this enought? -- Pali Rohár pali.rohar@xxxxxxxxx
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