thinkpad_acpi does not generate correct ACPI events whenbrightness_enable=0

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Hi!
I'm having a problem with the thinkpad_acpi kernel module where it does notgenerate a brightness down ACPI event when the "brightness_enable=0" parameteris set. This only happens when the module is automatically loaded at boot andafter resume from suspend.
Everything is fine once I run:
 rmmod thinkpad_acpi modprobe thinkpad_acpi brightness_enable=0
The "acpi_listen" command shows this following when either the brightness up orbrightness down button is pressed:
 ibm/hotkey LEN0068:00 00000080 00006050
and also the following when the brightness up button is pressed:
 video/brightnessup BRTUP 00000086 00000000
The following brightness down ACPI event is only generated after the module isreloaded:
 video/brightnessdown BRTDN 00000087 00000000
Is this a known bug (or even a bug at all)? The kernel bugzilla is down.
Also, I apologize if the kernel mailing list is the wrong place to post this.If this belongs somewhere else, I'd appreciate it if someone told me where.
Regards,Xiao-Long Chen 		 	   		  N‹§²æìr¸›yúèšØb²X¬¶ÇvØ^–)Þ{.nÇ+‰·¥Š{±‘êçzX§¶›¡Ü}©ž²ÆzÚ&j:+v‰¨¾«‘êçzZ+€Ê+zf£¢·hšˆ§~†­†Ûiÿûàz¹®w¥¢¸?™¨è­Ú&¢)ßf”ù^jÇy§m…á@A«a¶Úÿ0¶ìh®å’i