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List: ibm-acpi-devel
Subject: [ibm-acpi-devel] thinpad ede 13", brightness control
From: Carlos Bessa <carlos.bessa () gmail ! com>
Date: 2011-12-17 0:24:15
Message-ID: CAOTMMJokxi+D2aGNSftLFVBnqJ4N6UarQBcf3782W+whyHSiWA () mail ! gmail ! com
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Dear devs,
I own a Lenovo Thinkpad Edge 13" (intel cpu model), running openSUSE 12.1
64bit.
The screen on this laptop has 16 levels of brightness. However,
thinkpad_acpi reports only 8 level brightness support:
xxxxxxxx:/home/xxxxxx# dmesg | grep thinkpad
[ 21.025163] thinkpad_acpi: ThinkPad ACPI Extras v0.24
[ 21.025168] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 21.025172] thinkpad_acpi: ThinkPad BIOS 84ET27WW (1.11 ), EC
84HT23WW-1.090000
[ 21.025175] thinkpad_acpi: Lenovo ThinkPad Edge, model 0217A21
[ 21.035052] thinkpad_acpi: detected a 8-level brightness capable ThinkPad
[ 21.035499] thinkpad_acpi: radio switch found; radios are enabled
[ 21.035520] thinkpad_acpi: possible tablet mode switch found; ThinkPad
in laptop mode
[ 21.037860] thinkpad_acpi: asked for hotkey mask 0x04018070, but
firmware forced it to 0x00018070
[ 21.037966] thinkpad_acpi: setting the hotkey mask to 0x00ffffff is
likely not the best way to go about it
[ 21.037970] thinkpad_acpi: please consider using the driver defaults,
and refer to up-to-date thinkpad-acpi documentation
[ 21.055300] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is
unblocked
[ 21.074110] thinkpad_acpi: rfkill switch tpacpi_wwan_sw: radio is
unblocked
[ 21.088233] thinkpad_acpi: Standard ACPI backlight interface available,
not loading native one
[ 21.088440] thinkpad_acpi: Console audio control enabled, mode: monitor
(read only)
[ 21.097560] input: ThinkPad Extra Buttons as
/devices/platform/thinkpad_acpi/input/input7
Actually, while i'm in console/terminal i do get to use all 16 levels of
brightness regardless of what thinkpad_acpi is reporting.
Strangely, after loggin into kde/gnome i'm stuck with 8 levels only (Could
be due to the 8 levels of brightness reported by thinkpad_acpi)
Can thinkpad_acpi correctly detect the 16 brightness level screen?
All be happy to provide any info you need.
best regards,
Carlos Bessa
[Attachment #5 (text/html)]
Dear devs,<div>I own a Lenovo Thinkpad Edge 13" (intel cpu model), running \
openSUSE 12.1 64bit. <div>The screen on this laptop has 16 levels of brightness. \
However, thinkpad_acpi reports only 8 level brightness support:</div> \
<div><br></div><div><div>xxxxxxxx:/home/xxxxxx# dmesg | grep thinkpad</div><div>[ \
21.025163] thinkpad_acpi: ThinkPad ACPI Extras v0.24</div><div>[ 21.025168] \
thinkpad_acpi: <a href="http://ibm-acpi.sf.net/">http://ibm-acpi.sf.net/</a></div> \
<div>[ 21.025172] thinkpad_acpi: ThinkPad BIOS 84ET27WW (1.11 ), EC \
84HT23WW-1.090000</div><div>[ 21.025175] thinkpad_acpi: Lenovo ThinkPad Edge, model \
0217A21</div><div>[ 21.035052] thinkpad_acpi: detected a 8-level brightness capable \
ThinkPad</div> <div>[ 21.035499] thinkpad_acpi: radio switch found; radios are \
enabled</div><div>[ 21.035520] thinkpad_acpi: possible tablet mode switch found; \
ThinkPad in laptop mode</div><div>[ 21.037860] thinkpad_acpi: asked for hotkey mask \
0x04018070, but firmware forced it to 0x00018070</div> <div>[ 21.037966] \
thinkpad_acpi: setting the hotkey mask to 0x00ffffff is likely not the best way to go \
about it</div><div>[ 21.037970] thinkpad_acpi: please consider using the driver \
defaults, and refer to up-to-date thinkpad-acpi documentation</div> <div>[ \
21.055300] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is \
unblocked</div><div>[ 21.074110] thinkpad_acpi: rfkill switch tpacpi_wwan_sw: radio \
is unblocked</div><div>[ 21.088233] thinkpad_acpi: Standard ACPI backlight \
interface available, not loading native one</div> <div>[ 21.088440] thinkpad_acpi: \
Console audio control enabled, mode: monitor (read only)</div><div>[ 21.097560] \
input: ThinkPad Extra Buttons as \
/devices/platform/thinkpad_acpi/input/input7</div></div><div><br></div> \
<div>Actually, while i'm in console/terminal i do get to use all 16 levels of \
brightness regardless of what thinkpad_acpi is reporting.</div><div>Strangely, after \
loggin into kde/gnome i'm stuck with 8 levels only (Could be due to the 8 levels \
of brightness reported by thinkpad_acpi)</div> <div>Can thinkpad_acpi correctly \
detect the 16 brightness level screen?</div><div>All be happy to provide any info you \
need.</div><div><br></div><div>best regards,</div><div>Carlos \
Bessa</div><div><br></div></div>
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