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Old 05-09-2010, 11:25 AM   #1
gregnorc
LQ Newbie
 
Registered: Jul 2009
Posts: 29

Rep: Reputation: 15
X201 brightness keys not working


So I'm running Ubuntu 10.04 on a Thinkpad X201...

Most everything works (lock key, volume buttons, etc) with one exception: The brightness keys.

Manually going into the power managment dialog and trying to manually
change the brightness does not work.

Changing brightness works while the bios screen is still up, once
Ubuntu boots it fails again.

I've Googled around a bit, no one with an X201 seems to have encounted
the error, let alone a fix, so I thought I would post here and see if
anyone had any ideas...

Any help is greatly appreciated... having the brightness stuck at 100%
really dings my battery life.
 
Old 05-09-2010, 11:39 AM   #2
sploot
Member
 
Registered: Sep 2009
Location: Phoenix, AZ
Distribution: Gentoo, Debian, Ubuntu
Posts: 121

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I had a similar problem recently, what is your hardware setup? If its the same problem, I think we can fix it.

Code:
lspci -vvvv
 
Old 05-09-2010, 01:11 PM   #3
gregnorc
LQ Newbie
 
Registered: Jul 2009
Posts: 29

Original Poster
Rep: Reputation: 15
Cool, thanks a ton!

Output is as follows:
Code:
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
	Subsystem: Lenovo Device 2193
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>
	Kernel driver in use: agpgart-intel
	Kernel modules: intel-agp

00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)
	Subsystem: Lenovo Device 215a
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 32
	Region 0: Memory at f2000000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at 1800 [size=8]
	Capabilities: <access denied>
	Kernel modules: i915

00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
	Subsystem: Lenovo Device 215f
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx+
	Latency: 0
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at f2727800 (64-bit, non-prefetchable) [size=16]
	Capabilities: <access denied>

00:16.3 Serial controller: Intel Corporation 5 Series/3400 Series Chipset KT Controller (rev 06) (prog-if 02)
	Subsystem: Lenovo Device 2162
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin B routed to IRQ 17
	Region 0: I/O ports at 1808 [size=8]
	Region 1: Memory at f2524000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: serial

00:19.0 Ethernet controller: Intel Corporation 82577LM Gigabit Network Connection (rev 06)
	Subsystem: Lenovo Device 2153
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 31
	Region 0: Memory at f2500000 (32-bit, non-prefetchable) [size=128K]
	Region 1: Memory at f2525000 (32-bit, non-prefetchable) [size=4K]
	Region 2: I/O ports at 1820 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: e1000e
	Kernel modules: e1000e

00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) (prog-if 20)
	Subsystem: Lenovo Device 2163
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin D routed to IRQ 23
	Region 0: Memory at f2728000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
	Subsystem: Lenovo Device 215e
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at f2520000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: HDA Intel
	Kernel modules: snd-hda-intel

00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=0d, subordinate=0d, sec-latency=0
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: fff00000-000fffff
	Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=05, subordinate=0c, sec-latency=0
	I/O behind bridge: 00002000-00002fff
	Memory behind bridge: f0000000-f1ffffff
	Prefetchable memory behind bridge: 00000000f2800000-00000000f28fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06)
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: f2400000-f24fffff
	Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) (prog-if 20)
	Subsystem: Lenovo Device 2163
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin D routed to IRQ 19
	Region 0: Memory at f2728400 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6) (prog-if 01)
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Bus: primary=00, secondary=0e, subordinate=0e, sec-latency=0
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: fff00000-000fffff
	Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
	Subsystem: Lenovo Device 2166
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>
	Kernel modules: iTCO_wdt

00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06) (prog-if 01)
	Subsystem: Lenovo Device 2168
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 33
	Region 0: I/O ports at 1860 [size=8]
	Region 1: I/O ports at 1814 [size=4]
	Region 2: I/O ports at 1818 [size=8]
	Region 3: I/O ports at 1810 [size=4]
	Region 4: I/O ports at 1840 [size=32]
	Region 5: Memory at f2727000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci

00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
	Subsystem: Lenovo Device 2167
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at f2728800 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at 1880 [size=32]
	Kernel modules: i2c-i801

00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)
	Subsystem: Lenovo Device 2190
	Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin D routed to IRQ 11
	Region 0: Memory at f2526000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device 8172 (rev 10)
	Subsystem: Realtek Semiconductor Co., Ltd. Device e020
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: I/O ports at 3000 [size=256]
	Region 1: Memory at f2400000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: rtl819xSE
	Kernel modules: r8192se_pci

ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
	Subsystem: Lenovo Device 2196
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
	Subsystem: Lenovo Device 2196
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
	Subsystem: Lenovo Device 2196
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 02)
	Subsystem: Lenovo Device 2196
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 02)
	Subsystem: Lenovo Device 2196
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 02)
	Subsystem: Lenovo Device 2196
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
 
Old 05-09-2010, 01:18 PM   #4
sploot
Member
 
Registered: Sep 2009
Location: Phoenix, AZ
Distribution: Gentoo, Debian, Ubuntu
Posts: 121

Rep: Reputation: 27
If you add a kernel option to your grub.conf, do you get backlight control?

append:
noacpi

This is the sort of issue I had too. If this works, then we know a little more about what the problem is. You will lose battery info too, though. So you just want to test out this to see if you get backlight controls.
 
Old 05-09-2010, 01:24 PM   #5
gregnorc
LQ Newbie
 
Registered: Jul 2009
Posts: 29

Original Poster
Rep: Reputation: 15
Dumb question: Where is grub.conf located? I didn't see anything with that particular name (ru:

Code:
sigma@wopr:~$ sudo locate grub | grep conf
/boot/grub/configfile.mod
/usr/lib/grub/grub-mkconfig_lib
/usr/lib/grub/i386-pc/config.h
/usr/lib/grub/i386-pc/configfile.mod
/usr/sbin/grub-mkconfig
/usr/share/man/man8/grub-mkconfig.8.gz
/var/lib/dpkg/info/grub-common.conffiles
/var/lib/dpkg/info/grub-pc.conffiles
/var/lib/dpkg/info/grub-pc.config
 
Old 05-09-2010, 01:30 PM   #6
sploot
Member
 
Registered: Sep 2009
Location: Phoenix, AZ
Distribution: Gentoo, Debian, Ubuntu
Posts: 121

Rep: Reputation: 27
Are you running a new ubuntu? They changed configuration schemes recently.

You want to modify
Code:
/etc/default/grub
and edit the line:
Code:
GRUB_CMDLINE_LINUX=""
 -- to --
GRUB_CMDLINE_LINUX="noacpi"
then run
Code:
update-grub
then restart
 
Old 05-09-2010, 01:55 PM   #7
gregnorc
LQ Newbie
 
Registered: Jul 2009
Posts: 29

Original Poster
Rep: Reputation: 15
Yeah, it's 10.04... you were half right, I do not have a battery indicator, but the brightness keys don't work either...

Edit: The gui element shows up, the brightness "bar" that pops up goes up/down... but the screen stays at the same brightness.

Last edited by gregnorc; 05-09-2010 at 01:58 PM.
 
Old 05-09-2010, 02:05 PM   #8
sploot
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Registered: Sep 2009
Location: Phoenix, AZ
Distribution: Gentoo, Debian, Ubuntu
Posts: 121

Rep: Reputation: 27
while still without the battery indicator, in a terminal run:

xbacklight -set 0

this may be an issue that is different from the one I encountered. The solution for me was to add:
acpi_osi="Linux"
to the grub configuration. You can try that by replacing:
Code:
GRUB_CMDLINE_LINUX="noacpi"
 --- with ---
GRUB_CMDLINE_LINUX="acpi_osi=\"Linux\""
Don't neglect the \" \" in there.
 
Old 05-09-2010, 03:10 PM   #9
gregnorc
LQ Newbie
 
Registered: Jul 2009
Posts: 29

Original Poster
Rep: Reputation: 15
Quote:
Originally Posted by sploot View Post
while still without the battery indicator, in a terminal run:

xbacklight -set 0

this may be an issue that is different from the one I encountered. The solution for me was to add:
acpi_osi="Linux"
to the grub configuration. You can try that by replacing:
Code:
GRUB_CMDLINE_LINUX="noacpi"
 --- with ---
GRUB_CMDLINE_LINUX="acpi_osi=\"Linux\""
Don't neglect the \" \" in there.
Yeah, that just made it that the little bar doesn't go left to right, in addition to the brightness not changing...
 
Old 05-09-2010, 03:59 PM   #10
sploot
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Registered: Sep 2009
Location: Phoenix, AZ
Distribution: Gentoo, Debian, Ubuntu
Posts: 121

Rep: Reputation: 27
Sorry, wish I knew more. I would say take a look for kernel bugs and if there isn't one report one. They will do their best to work with you on it. Good luck!
 
Old 05-23-2010, 11:30 AM   #11
dancog
LQ Newbie
 
Registered: Sep 2007
Location: Guangdong China
Distribution: slackware
Posts: 2

Rep: Reputation: 1
Here's a good portal to X200 information:
http://www.thinkwiki.org/wiki/Category:X200

And here's information about acpi:
http://www.thinkwiki.org/wiki/Thinkpad-acpi

acpi controls power and also the various special Thinkpad buttons.

thinkpad-acpi is the name of the kernel module.
 
  


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