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Len Brown changed:
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--- Comment #114 from Len Brown 2
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Resolution|
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--- Comment #112 from Zhang Rui 2009-04-09 08:04:09 ---
1. When will these patches go into mainline (I hope they will)?
Bad news is that all of them are going to upsteam except the last one.
Good news is that I can rewrite a DSDT that can work
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--- Comment #110 from Peter Klotz 2009-04-09 06:35:16 ---
The final patch from comment #109 made it work perfectly!
Thanks a lot Zhang for all your efforts!
r...@asus:/proc/acpi/video/VGA/LCDD# cat brightness
levels: 10 16 21 27 33 39 45 5
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--- Comment #108 from Peter Klotz 2009-04-07 19:55:23 ---
>From a kernel point of view this may be true. However Gnome shows quite erratic
behavior.
"echo 10 > /proc/acpi/video/VGA/LCD/brightness" no longer shows an error
message which is def
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Zhang Rui changed:
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--- Comment #105 from Len Brown 2009-04-07 03:05:34 ---
commit d32f69470c2081ffdfd82740ac19f940790f9e93
Author: Zhang Rui
Date: Wed Mar 18 16:27:12 2009 +0800
ACPI video: support _BCL packages that don't export brightness levels when
m
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--- Comment #104 from Zhang Rui 2009-04-07 02:57:05 ---
Created an attachment (id=20844)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20844)
debug patch
please apply this patch on top and re-attach the dmesg output. thanks.
--
Configu
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--- Comment #102 from Thomas Renninger 2009-04-03 09:42:43 ---
> Again the dmesg output exceeds the ring buffer size...
Yes, that happens easily with increased ACPI debug output, you may want to use:
log_buf_len=
boot param. E.g. log_buf_len=1
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--- Comment #99 from Zhang Rui 2009-04-03 00:47:47 ---
no, :(
please attach the full dmesg output with boot parameters
"acpi.debug_layer=0x acpi.debug_level=0x2007"
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--- Comment #98 from Peter Klotz 2009-04-02 20:17:47 ---
Do these lines look better?
[ 134.721751] ACPI Exception (exoparg2-0445): AE_AML_BUFFER_LIMIT, Index
(000FF) is beyond end of object [20081204]
[ 134.721770] ACPI Error (psparse-0
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--- Comment #96 from Zhang Rui 2009-04-02 05:42:46 ---
weird, the dmesg doesn't show the info I need.
please retry this test, but
1. don't use boot options "acpi.debug_layer=0x acpi.debug_level=0x2007"
2. echo enable > /sys/module/acpi
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--- Comment #95 from Peter Klotz 2009-04-02 05:20:54 ---
Created an attachment (id=20775)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20775)
Difference in dmesg output
I executed this script and then diffed both dmesg files:
dmesg > d
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--- Comment #94 from Zhang Rui 2009-04-02 02:14:55 ---
this seems to be another BIOS/AML code problem.
when set the backlight to 10 (the minimum brightness value),
there is a failure when evaluating STBR method.
please do this test in the comm
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--- Comment #92 from Peter Klotz 2009-03-31 04:59:58 ---
Yes, only value 10 shows this error. All other values (16-100) work correctly.
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--- Comment #91 from Zhang Rui 2009-03-31 03:06:44 ---
hi, Peter,
please get a clean 2.6.29 kernel,
1.apply the customized DSDT in comment #81,
2.apply the patch set in comment #82,
3.apply the patch in comment #85.
4.apply the patch in comme
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--- Comment #90 from Zhang Rui 2009-03-31 02:56:41 ---
Created an attachment (id=20749)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20749)
patch: video cleanup -8
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--- Comment #89 from Zhang Rui 2009-03-31 01:44:15 ---
Hi, Peter,
thanks for your test, it seems that there are still two problems here.
1.
r...@asus:~# cat /proc/acpi/video/VGA/LCDD/brightness
levels: 10 16 21 27 33 39 45 51 57 63 69 74 81
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--- Comment #87 from Thomas Renninger 2009-03-30 14:50:21 ---
AFAIK most of Rui's patches went into Len's test tree:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
linux-acpi
git branch --track origin/test test
git
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--- Comment #86 from Khashayar Naderehvandi
2009-03-30 09:01:41 ---
Zhang: There are so many patches attached to this bug report, I'm a bit at a
loss which ones to try.
So far, I've tried some patches from here a few times, the last time I t
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--- Comment #85 from Zhang Rui 2009-03-30 03:18:40 ---
Created an attachment (id=20728)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20728)
patch:video cleanup 7
please attach the patch on top of the previous patches and see if it helps
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Len Brown changed:
What|Removed |Added
Status|RESOLVED|REOPENED
CC|
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--- Comment #83 from peter.kl...@aon.at 2009-03-18 13:36 ---
Created an attachment (id=20585)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20585&action=view)
2.6.29-rc7 dmesg output (DSDT (comment #81) + both patches)
cat /sys/mo
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--- Comment #80 from rui.zh...@intel.com 2009-03-17 18:06 ---
weird, I didn't get the info I want.
could you please redo the test in comment #78 and attach the output of "cat
/sys/module/acpi/parameters/debug_level" after you get the dm
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--- Comment #79 from peter.kl...@aon.at 2009-03-17 14:42 ---
Created an attachment (id=20573)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20573&action=view)
2.6.29-rc7 dmesg output (only DSDT applied)
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--- Comment #78 from peter.kl...@aon.at 2009-03-17 14:41 ---
Created an attachment (id=20572)
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2.6.29-rc7 dmesg output (DSDT + both patches)
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--- Comment #77 from rui.zh...@intel.com 2009-03-16 20:49 ---
Created an attachment (id=20559)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20559&action=view)
customized DSDT
please
1.set CONFIG_ACPI_DEBUG,
2.apply this customize
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--- Comment #76 from peter.kl...@aon.at 2009-03-16 10:20 ---
Created an attachment (id=20553)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20553&action=view)
dmesg output (2.6.29-rc7 with debug patch applied)
Patches from comment
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--- Comment #75 from rui.zh...@intel.com 2009-03-15 19:48 ---
Created an attachment (id=20536)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20536&action=view)
debug patch
please apply this debug patch on top of the previous patch
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--- Comment #74 from peter.kl...@aon.at 2009-03-12 23:02 ---
Sorry, I meant 2.6.29-rc7, not 2.6.27-rc7.
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--- Comment #73 from peter.kl...@aon.at 2009-03-12 23:00 ---
Created an attachment (id=20513)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20513&action=view)
Kernel 2.6.27-rc7 dmesg output
Patch from comment #69 applied. See res
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--- Comment #72 from rui.zh...@intel.com 2009-03-12 17:55 ---
Peter, please attach the dmesg output with the kernel in comment #71. thanks
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--- Comment #71 from peter.kl...@aon.at 2009-03-12 14:57 ---
2.6.29-rc7 (patch from comment #69 applied):
Directory /sys/class/backlight is empty.
r...@asus:~# cat /proc/acpi/video/VGA/LCDD/brightness
Backlight control is completel
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--- Comment #70 from peter.kl...@aon.at 2009-03-12 13:46 ---
2.6.29-rc7 (patch from comment #60 applied):
r...@asus:~# grep . /sys/class/backlight/*/*
/sys/class/backlight/acpi_video0/actual_brightness:0
/sys/class/backlight/acpi_video
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is obsolete|
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--- Comment #68 from peter.kl...@aon.at 2009-03-11 22:59 ---
2.6.29-rc7 (no patches applied):
r...@asus:~# grep . /sys/class/backlight/*/*
/sys/class/backlight/acpi_video0/actual_brightness:0
/sys/class/backlight/acpi_video0/bl_power:0
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--- Comment #67 from rui.zh...@intel.com 2009-03-11 20:15 ---
both w/ and w/o the patch in comment #60
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--- Comment #66 from rui.zh...@intel.com 2009-03-11 20:14 ---
please attach the output of "grep . /sys/class/backlight/*/*"
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--- Comment #65 from peter.kl...@aon.at 2009-03-11 10:14 ---
Created an attachment (id=20494)
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acpidump output of Asus B50A
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--- Comment #64 from peter.kl...@aon.at 2009-03-11 10:13 ---
Created an attachment (id=20493)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20493&action=view)
Kernel 2.6.29-rc7 dmesg output
The laptop is an Asus B50A.
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--- Comment #63 from
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--- Comment #62 from peter.kl...@aon.at 2009-03-10 10:25 ---
I applied the patch from comment #60 against 2.6.28.7 and got exactly the same
errors.
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--- Comment #61 from khashayar.li...@gmail.com 2009-03-10 07:44 ---
I'm a bit short on time right now, so I tried to go about the quick and easy
way, and compile the ubuntu kernel with this patch applied. The patch applies
fine, but the
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--- Comment #60 from rui.zh...@intel.com 2009-03-09 23:08 ---
Created an attachment (id=20479)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20479&action=view)
patch: video cleanup
please try this patch and see if the problem is f
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--- Comment #59 from peter.kl...@aon.at 2009-02-09 08:45 ---
When applying the patch from comment #34 to 2.6.28.4 the brightness levels of
my Asus B50A laptop work correctly for the first time.
Without the patch Gnome offers only two
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--- Comment #58 from tr...@suse.de 2009-02-09 01:00 ---
Argh, also the ASUS have this?
Then this really should not be in a SL Lenovo driver.
This also makes it very likely that Windows can handle this in a generic way, I
doubt ASUS and
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--- Comment #57 from rui.zh...@intel.com 2009-02-08 21:13 ---
1. maximum value doesn't equal 100
2. the brightness levels are sequential numbers start from 0.
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--- Comment #56 from yakui.z...@intel.com 2009-02-08 20:52 ---
But on one Asus laptop(bug12450) the _BCL package is defined as the following:
> Method (_BCL, 0, NotSerialized)
{
Return (Package (0x10)
{
0x0F,
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--- Comment #55 from rui.zh...@intel.com 2009-02-08 18:27 ---
for a BIOS which provides both ACPI video extension and platform specific
control methods, ACPI video is preferred.
the patch in comment #34 is a simple way to workaround thi
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--- Comment #54 from tetrom...@gmail.com 2009-02-08 18:18 ---
(In reply to comment #52)
Thomas: on the ThinkPad SL series, both the _BCL and _BQC methods are
non-standard (see comments in my code and in the discussion of this bug).
As
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What|Removed |Added
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--- Comment #53 from
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--- Comment #52 from tr...@suse.de 2009-02-08 15:39 ---
Alexandre: Looking at your driver, it looks like it's mostly doing the same
than the video.c driver (from brightness perspective), but uses the return
value of _BQC (brightness cur
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--- Comment #51 from gary.trakh...@gmail.com 2009-02-08 12:48 ---
thanks so much! your driver works. I think it might also be helpful for
ideapads as there's similar bugs floating around on ubuntu launchpad for them
and I know the firm
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--- Comment #50 from tetrom...@gmail.com 2009-02-08 11:43 ---
I wrote a driver for controlling the brightness, hotkeys and bluetooth on the
SL series ThinkPads.
See http://github.com/tetromino/lenovo-sl-laptop/tree/master
Works nicely
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--- Comment #49 from gary.trakh...@gmail.com 2009-02-08 11:04 ---
Is it possible to get functionality of the brightness keys on SL300 by
blacklisting video? I tried it, but I can't use my brightness keys b/c kernel
ACPI grabs them. Is
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--- Comment #46 from
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--- Comment #47 from tetrom...@gmail.com 2009-01-11 18:02 ---
(In reply to comment #46)
> so there is an empty /sys/class/backlight directory after applying this patch,
> even with thinkpad_acpi loaded, right?
When patch from comment 3
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--- Comment #45 from sfstu...@mail.ru 2009-01-10 21:53 ---
Thanks a lot. In 2.6.29rc1 kernel backligth work perfect!!!
Asus X51L.
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--- Comment #44 from tetrom...@gmail.com 2009-01-10 15:23 ---
(In reply to comment #34)
> BTW: make sure the thinkpad_acpi driver is built
> and loaded.
Ah, now I see. So your patch simply disables video.ko from controlling the
backlig
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--- Comment #43 from tetrom...@gmail.com 2009-01-10 15:13 ---
(In reply to comment #34)
> Created an attachment (id=19671)
--> (http://bugzilla.kernel.org/attachment.cgi?id=19671&action=view) [details]
> patch: don't use buggy _BCL/_BC
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--- Comment #42 from len.br...@intel.com 2009-01-09 14:07 ---
shipped in 2.6.28-git14:
commit 935e5f290ec1eb0f1c15004421f5fd3154380fd5
Author: Zhang Rui
Date: Thu Dec 11 16:24:52 2008 -0500
ACPI: video: Fix reversed brightness
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--- Comment #41 from rui.zh...@intel.com 2009-01-08 18:19 ---
plus, the level_ac and level_battery are not always the maximum and the second
maximum backlight levels.
we should set them to a specific value only if they are not exported
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Status|RESOLVED|REOPENED
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--- Comment #39 from tr...@suse.de 2009-01-08 07:24 ---
Created an attachment (id=19717)
--> (http://bugzilla.kernel.org/attachment.cgi?id=19717&action=view)
ACPI VIDEO: Setup correct brightness level list sorted and without duplicates
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Resolution|
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--- Comment #38 from a...@shadowen.org 2009-01-07 18:29 ---
We have a couple of bugs which are related to this upstream bug,
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/311716 and
https://bugs.launchpad.net/ubuntu/+source/linux
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--- Comment #3
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--- Comment #34 from rui.zh...@intel.com 2009-01-05 22:32 ---
Created an attachment (id=19671)
--> (http://bugzilla.kernel.org/attachment.cgi?id=19671&action=view)
patch: don't use buggy _BCL/_BCM/_BQC methods for backlight control
Al
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is obsolete|
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--- Comment #31 from tetrom...@gmail.com 2008-12-23 00:45 ---
(In reply to comment #30)
> Created an attachment (id=19448)
--> (http://bugzilla.kernel.org/attachment.cgi?id=19448&action=view) [details]
> customized DSDT
>
> well, fix
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--- Comment #29 from tetrom...@gmail.com 2008-12-23 00:05 ---
Start with brightness at 100%
# cat /sys/class/backlight/acpi_video0/actual_brightness
0
# dmesg | tail
< ... >
[ 6408.058894] Rui: current level is 20, brightness count is
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--- Comment #28 from tetrom...@gmail.com 2008-12-22 23:58 ---
Start with brightness at 85%
# cat /proc/acpi/video/VGA/LCDD/brightness
levels: 100 90 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 100
current: 85
/* pressing hotkey brig
http://bugzilla.kernel.org/show_bug.cgi?id=12249
--- Comment #27 from rui.zh...@intel.com 2008-12-22 23:40 ---
Created an attachment (id=19447)
--> (http://bugzilla.kernel.org/attachment.cgi?id=19447&action=view)
patch: print more debug info when doing brightness switch
--
Configu
http://bugzilla.kernel.org/show_bug.cgi?id=12249
--- Comment #26 from rui.zh...@intel.com 2008-12-22 23:40 ---
(In reply to comment #25)
> (In reply to comment #23)
> > Created an attachment (id=19443)
--> (http://bugzilla.kernel.org/attachment.cgi?id=19443&action=view) [details]
[d
http://bugzilla.kernel.org/show_bug.cgi?id=12249
--- Comment #25 from tetrom...@gmail.com 2008-12-22 22:32 ---
(In reply to comment #23)
> Created an attachment (id=19443)
--> (http://bugzilla.kernel.org/attachment.cgi?id=19443&action=view) [details]
> customized DSDT: fix another BI
http://bugzilla.kernel.org/show_bug.cgi?id=12249
rui.zh...@intel.com changed:
What|Removed |Added
Attachment #19442|0 |1
is obsolete|
http://bugzilla.kernel.org/show_bug.cgi?id=12249
rui.zh...@intel.com changed:
What|Removed |Added
Attachment #19441|0 |1
is obsolete|
http://bugzilla.kernel.org/show_bug.cgi?id=12249
--- Comment #22 from tetrom...@gmail.com 2008-12-22 21:46 ---
Start with brightness at 100%
# cat /sys/class/backlight/acpi_video0/actual_brightness
0
# dmesg | tail
<...>
[ 3578.564570] Rui: current level is 15, brightness count is 18
http://bugzilla.kernel.org/show_bug.cgi?id=12249
--- Comment #21 from rui.zh...@intel.com 2008-12-22 21:31 ---
(In reply to comment #19)
> When the brightness is at 100% and I run "cat
> /sys/class/backlight/acpi_video0/actual_brightness", I get a one line message
> added to dmesg:
>
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