Bug 15609 (mikewatt)
Summary: | ACPI brightness bug no FN F7 F8 brightness control and start up with a dim brightness. | ||
---|---|---|---|
Product: | ACPI | Reporter: | 00oo00 (chenalias) |
Component: | Power-Video | Assignee: | Zhang Rui (rui.zhang) |
Status: | CLOSED INSUFFICIENT_DATA | ||
Severity: | high | CC: | rui.zhang, yakui.zhao |
Priority: | P1 | ||
Hardware: | All | ||
OS: | Linux | ||
Kernel Version: | 2.6.31.20 | Subsystem: | |
Regression: | No | Bisected commit-id: | |
Attachments: |
output of "grep . /sys/firmware/acpi/interrupts/*"
commond line and event_log event logs While pressing Fn+F7 and FN+F8 |
Description
00oo00
2010-03-22 14:48:36 UTC
BY THE WAY I`M USING GL960+ICH8 BASED LAPTOP. From the description it seems that the brightness can be adjusted by using the /sys/class/backlight/acpi_video*/brightness Will you please do the following test? 1. kill the process using /proc/acpi/event (use the command of "lsof /proc/acpi/event" to get the process id) 2. cat /proc/acpi/event >event_log 3. press "Fn + F7"/"Fn + F8" several times and then press "CTRL + C" After the test, please attach the file of event_log. thanks. please attach the acpidump output. and attach the output of "grep . /sys/firmware/acpi/interrupts/*", both before and after pressing the Fn + F7/F8 hotkeys. *** Bug 15627 has been marked as a duplicate of this bug. *** Created attachment 25721 [details]
output of "grep . /sys/firmware/acpi/interrupts/*"
@Zhang Rui
Here is the info u ask for. Please check into it.
(In reply to comment #4) > *** Bug 15627 has been marked as a duplicate of this bug. *** I have attached the grep output u asked for. (In reply to comment #2) > From the description it seems that the brightness can be adjusted by using > the > /sys/class/backlight/acpi_video*/brightness > > Will you please do the following test? > 1. kill the process using /proc/acpi/event (use the command of "lsof > /proc/acpi/event" to get the process id) > 2. cat /proc/acpi/event >event_log > 3. press "Fn + F7"/"Fn + F8" several times and then press "CTRL + C" > > After the test, please attach the file of event_log. > > thanks. @ykzhao Thanks for the fast reply. But I still cannot cat the event log file. It returns resource busy. How to kill the process? I got this info back when I run the lsof command. Output information may be incomplete. COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME acpid 4957 root 3r REG 0,3 0 4026531938 /proc/acpi/event I ran that command again the id changed and occurred a warning. lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon file system /home/austin/.gvfs Output information may be incomplete. COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME acpid 5417 root 3r REG 0,3 0 4026531938 /proc/acpi/event (In reply to comment #2) > From the description it seems that the brightness can be adjusted by using > the > /sys/class/backlight/acpi_video*/brightness > > Will you please do the following test? > 1. kill the process using /proc/acpi/event (use the command of "lsof > /proc/acpi/event" to get the process id) > 2. cat /proc/acpi/event >event_log > 3. press "Fn + F7"/"Fn + F8" several times and then press "CTRL + C" > > After the test, please attach the file of event_log. > > thanks. I did it again and added some command to run the cat event log file but I found it`s empty. Attached the attachments. (command line and event_log) Created attachment 25726 [details]
commond line and event_log
commond line and event_log
just run "cat /proc/acpi/event" and then press the hotkey, there should be something pop up at this time. (In reply to comment #12) > just run "cat /proc/acpi/event" and then press the hotkey, there should be > something pop up at this time. Nothing pops up. And this is what returns when hit that command. cat: /proc/acpi/event: Device or resource busy Seems a bug out there. please run lsof /proc/acpi/event and kill all the processes that polling this file, and then do the test in comment #12. ping... bug closed as there is no response from the bug reporter. (In reply to comment #16) > bug closed as there is no response from the bug reporter. Here is what I got when cating the event log while presing Fn+F7 and Fn+F8. video DD03 00000086 00000000 video DD03 00000087 00000000 video DD03 00000086 00000000 video DD03 00000086 00000000 video DD03 00000087 00000000 video DD03 00000087 00000000 Created attachment 44582 [details]
event logs While pressing Fn+F7 and FN+F8
cat /proc/acpi/event results While pressing Fn+F7 and FN+F8.
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