http://bugzilla.kernel.org/show_bug.cgi?id=12106
--- Comment #47 from m...@fireburn.co.uk 2008-12-15 17:38 ---
Has there been any progress with this?
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--- Comment #46 from [EMAIL PROTECTED] 2008-12-11 06:50 ---
I have the lastest BIOS version
http://www.samsung.com/uk/support/download/supportDown.do?group=itbusiness&type=notebookcomputers&subtype=rseries&model_nm=NP-R510&disp_nm=R510
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--- Comment #45 from [EMAIL PROTECTED] 2008-12-10 18:21 ---
well, by re-reading your BIOS, it seems that the AML code is not well written,
and there are too many places that need to be fixed.
let's try to upgrade your BIOS first. :p
-
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--- Comment #44 from [EMAIL PROTECTED] 2008-12-10 18:17 ---
it's a SMI call that causes the crash.
it's weird that it's an IGD OpRegion BIOS.
but the backlight control(_BCM) doesn't go via IGD OpRegion.
so first please check if there i
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--- Comment #43 from [EMAIL PROTECTED] 2008-12-10 11:40 ---
Yes it stopped the crashing
Here is the output for 35 45 60 70 80 90 100
[ACPI Debug] String [0x07] "In _BCM"
[ACPI Debug] String
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--- Comment #42 from [EMAIL PROTECTED] 2008-12-09 19:42 ---
all right, then I think
echoing {60, 70, 80, 90, 100} all crashes the system, while {25, 35, 45}
doesn't, right?
Yes that's correct
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--- Comment #41 from [EMAIL PROTECTED] 2008-12-09 19:34 ---
you can try this DSDT and see if it still crashes.
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--- Comment #39 from [EMAIL PROTECTED] 2008-12-09 19:29 ---
all right, then I think
echoing {60, 70, 80, 90, 100} all crashes the system, while {25, 35, 45}
doesn't, right?
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--- Comment #38 from [EMAIL PROTECTED] 2008-12-09 19:06 ---
Oh yes forgot to say echo 60 crashed the laptop
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--- Comment #36 from [EMAIL PROTECTED] 2008-12-09 19:04 ---
The output for echo 35, 45 then 25 is:
[ACPI Debug] String [0x07] "In _BCM"
[ACPI Debug] String [0x04] "Arg0"
[ACPI Debug] Integer 0x0023
[ACPI Debug] String [
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--- Comment #35 from [EMAIL PROTECTED] 2008-12-09 18:45 ---
Well maybe it's not so weird if you consider the screens actual brightness
isn't changing I'll try the DSDT now
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--- Comment #33 from [EMAIL PROTECTED] 2008-12-09 18:24 ---
Every value that doesn't crash the machine produces the exact same output
[ACPI Debug] String [0x07] "In _BCM"
[ACPI Debug] String [0x06] "Local0"
[ACPI Debug] Integer 0x00
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--- Comment #32 from [EMAIL PROTECTED] 2008-12-08 17:33 ---
then what about 60 and 70?
please attach the dmesg as well
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--- Comment #31 from [EMAIL PROTECTED] 2008-12-08 17:04 ---
I echo'd 0x03 as requested
then echod 45 (40 wasn't on the list of available levels)
Output is:
tau fireburn # dmesg
[ACPI Debug] String [0x07] "In _BCM"
[ACPI Debug] Stri
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--- Comment #30 from [EMAIL PROTECTED] 2008-12-08 16:50 ---
hah, I see.
please run "echo 0x03 > /sys/module/acpi/parameters/debug_level"
and then attach the dmesg output after "echo 40"
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--- Comment #29 from [EMAIL PROTECTED] 2008-12-08 12:04 ---
Created an attachment (id=19219)
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Debug output of ACPI
cd /sys/module/acpi/parameters/
grep . * > ~firebu
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--- Comment #28 from [EMAIL PROTECTED] 2008-12-07 17:48 ---
No dmesg output? weird.
please attach the content of
/sys/module/acpi/parameters/{debug_level, debug_layer}
if these two files don't exist, which mean that CONFIG_ACPI_DEBUG i
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--- Comment #27 from [EMAIL PROTECTED] 2008-12-07 16:09 ---
OK I did a tail -f /var/log/messages and tried echoing different values to
brightness
I echo'd 45 60 & 70 successfully and 80 caused the laptop to crash
Nothing appeared in t
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--- Comment #26 from [EMAIL PROTECTED] 2008-12-05 02:23 ---
When I do a dmesg-c echo 40 > brightness
My computer carries on working and dmesg is then empty
Hope I've explained things better now
I'll try loggin on to my laptop from a
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--- Comment #25 from [EMAIL PROTECTED] 2008-12-04 17:15 ---
what does "blank" mean? is it the same like 90?
can the computer still work? or it crashes?
can you login via network? does the keyboard still work (can ctrl+atl+del
restarts t
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--- Comment #24 from [EMAIL PROTECTED] 2008-12-04 11:20 ---
It's blank
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--- Comment #23 from [EMAIL PROTECTED] 2008-12-03 21:21 ---
so, echoing 40 doesn't crash, right?
please attach the dmesg output after echoing 40.
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--- Comment #22 from [EMAIL PROTECTED] 2008-12-03 11:55 ---
The laptop crashed with 90
I relised that I modprobed video after doing the dmesg -c but before the echo
40
So that dmesg.40 should be empty
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--- Comment #21 from [EMAIL PROTECTED] 2008-12-03 11:52 ---
Created an attachment (id=19131)
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Dmesg 40
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--- Comment #20 from [EMAIL PROTECTED] 2008-12-02 17:16 ---
(In reply to comment #18)
> levels: 100 90 25 35 45 60 70 80 90 100
> current: 25
>
> Out put of /proc/acpi/video/GFX0/DD04/brightness lines 1-2/2 (END)
>
> Still changes wh
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--- Comment #19 from [EMAIL PROTECTED] 2008-12-02 11:09 ---
Created an attachment (id=19105)
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Dmesg with IRQPOLL
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--- Comment #18 from [EMAIL PROTECTED] 2008-12-02 11:08 ---
levels: 100 90 25 35 45 60 70 80 90 100
current: 25
Out put of /proc/acpi/video/GFX0/DD04/brightness lines 1-2/2 (END)
Still changes when I change /sys/class/backlight ... b
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--- Comment #17 from [EMAIL PROTECTED] 2008-12-02 10:09 ---
Created an attachment (id=19103)
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Origional DSDT
Thought this might be useful
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--- Comment #16 from [EMAIL PROTECTED] 2008-12-01 17:14 ---
please attach the content of "/proc/acpi/video/GFX0/DD04/brightness" after
applying the customized DSDT.
echoing any value to file results in a system crash?
irq 16: nobody ca
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--- Comment #14 from [EMAIL PROTECTED] 2008-12-01 11:38 ---
No change laptop still crashes changing values and starting X
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--- Comment #12 from [EMAIL PROTECTED] 2008-11-29 01:38 ---
There aren't any that don't show this problem
This I believe is the first kernel that has both the video detection patch and
the Reserve low 64K of RAM on AMI/Phoenix BIOSes
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