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rkx1209
n00b
n00b


Joined: 26 Oct 2015
Posts: 1
Location: Japan

PostPosted: Mon Oct 26, 2015 12:04 pm    Post subject: Lenovo X240 backligh do not work Reply with quote

Hello,
I'm having problems setting up brightness keys (Fn+Home, Fn+End) on my Lenovo thinkpad X240.
When I hit Functional key and Home or End, it does not generate any acpi events.
(Only Fn+f1,f2 and f3 work. )
Code:

# acpi_listen
button/mute MUTE 00000080 00000000 K
button/volumedown VOLDN 00000080 00000000 K
button/volumeup VOLUP 00000080 00000000 K


I can't also change it by xbacklight because of following errors.
Code:

# xbacklight -set 10%
No protocol specified
RANDR Query Version returned error -1

Code:


# grep BACKLIGHT /boot/config-3.17.8-gentoo-r1
# CONFIG_FB_BACKLIGHT is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
CONFIG_BACKLIGHT_APPLE=m
CONFIG_BACKLIGHT_SAHARA=m
CONFIG_BACKLIGHT_ADP8860=m
CONFIG_BACKLIGHT_ADP8870=m
CONFIG_BACKLIGHT_LM3639=m
CONFIG_BACKLIGHT_LV5207LP=m
CONFIG_BACKLIGHT_BD6107=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m

# grep ACPI /boot/config-3.17.8-gentoo-r1     
# Power management and ACPI options
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_PROCFS_POWER=y
CONFIG_ACPI_EC_DEBUGFS=y
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
# CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_BGRT is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
# CONFIG_ACPI_APEI is not set
# CONFIG_ACPI_EXTLOG is not set
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
CONFIG_PNPACPI=y
# CONFIG_BLK_DEV_IDEACPI is not set
CONFIG_ATA_ACPI=y
CONFIG_PATA_ACPI=m
CONFIG_ACPI_I2C_OPREGION=y
# ACPI drivers
# ACPI drivers
# CONFIG_SENSORS_ACPI_POWER is not set
CONFIG_ACPI_INT3403_THERMAL=y
# CONFIG_MMC_SDHCI_ACPI is not set
CONFIG_DMA_ACPI=y
CONFIG_THINKPAD_ACPI=m
CONFIG_THINKPAD_ACPI_ALSA_SUPPORT=y
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
# CONFIG_THINKPAD_ACPI_UNSAFE_LEDS is not set
CONFIG_THINKPAD_ACPI_VIDEO=y
CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y
# CONFIG_ACPI_WMI is not set
# CONFIG_ACPI_CMPC is not set

[/code]
Code:

# lspci -k | grep -A3 VGA
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
        Subsystem: Lenovo ThinkPad X240
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
        Subsystem: Lenovo ThinkPad X240

# ls /sys/class/
ata_device  fc_remote_ports  iscsi_connection  misc           rtc             scsi_generic
ata_link    fc_transport     iscsi_endpoint    net            sas_device      scsi_host
ata_port    fc_vports        iscsi_host        pci_bus        sas_end_device  sound
bdi         firmware         iscsi_iface       pcmcia_socket  sas_expander    spi_host
block       graphics         iscsi_session     phy            sas_host        spi_transport
bsg         hidraw           iscsi_transport   power_supply   sas_phy         tty
dma         hwmon            leds              pps            sas_port        vc
dmi         ieee80211        mdio_bus          ptp            scsi_device     vtconsole
fc_host     input            mem               rfkill         scsi_disk



Code:

# lsmod
Module                  Size  Used by
ctr                     3471  3
ccm                     6846  3
ipv6                  254355  26
coretemp                5084  0
arc4                    1816  2
kvm_intel             121332  0
iwlmvm                119404  0
mac80211              245979  1 iwlmvm
kvm                   233372  1 kvm_intel
snd_hda_codec_realtek    48931  1
iwlwifi                78248  1 iwlmvm
cfg80211              179892  3 iwlwifi,mac80211,iwlmvm
nvram                   5119  0
joydev                  8215  0
e1000e                137102  0
snd_hda_codec_generic    39119  1 snd_hda_codec_realtek
rfkill                 13361  2 cfg80211
serio_raw               3977  0
microcode               7558  0
rtc_cmos                7763  0
pcspkr                  1747  0
snd_hda_intel          16879  3
snd_hda_controller     13921  1 snd_hda_intel
snd_hda_codec          67795  4 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep               5373  1 snd_hda_codec
snd_pcm                62983  3 snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer              15326  1 snd_pcm
snd                    49675  13 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
xts                     2727  0
gf128mul                5242  1 xts
aes_x86_64              7263  6
cbc                     2456  0
sha512_generic          4728  0
sha256_generic          9620  0
sha1_generic            1830  0
libiscsi               31451  0
scsi_transport_iscsi    60988  1 libiscsi
tg3                   130394  0
libphy                 20623  1 tg3
e1000                  86297  0
fuse                   65858  1
nfs                    98770  0
lockd                  52398  1 nfs
sunrpc                151868  2 nfs,lockd
jfs                   135431  0
btrfs                 659350  0
zlib_deflate           17619  1 btrfs
multipath               5248  0
linear                  3231  0
raid10                 33416  0
raid456                51858  0
async_raid6_recov       1241  1 raid456
async_memcpy            1342  1 raid456
async_pq                3780  1 raid456
async_xor               2801  2 async_pq,raid456
async_tx                1734  5 async_pq,raid456,async_xor,async_memcpy,async_raid6_recov
xor                    10248  2 btrfs,async_xor
raid6_pq               89350  3 async_pq,btrfs,async_raid6_recov
raid1                  23352  0
raid0                   6491  0
dm_snapshot            24077  0
dm_bufio               12910  1 dm_snapshot
dm_crypt               14625  0
dm_mirror              10939  0
dm_region_hash          6167  1 dm_mirror
dm_log                  7427  2 dm_region_hash,dm_mirror
dm_mod                 67941  5 dm_log,dm_mirror,dm_bufio,dm_crypt,dm_snapshot
hid_sunplus             1400  0
led_class               2867  1 iwlmvm
hid_samsung             2765  0
hid_pl                  1352  0
hid_petalynx            1897  0
hid_gyration            2035  0
sl811_hcd               8887  0
ohci_pci                2840  0
ohci_hcd               16991  1 ohci_pci
uhci_hcd               18605  0
usb_storage            44221  0
aic94xx                63622  0
libsas                 54174  1 aic94xx
lpfc                  478044  0
crc_t10dif              1031  1 lpfc
crct10dif_common        1252  1 crc_t10dif
qla2xxx               484443  0
megaraid_sas           80035  0
megaraid_mbox          23676  0
megaraid_mm             6768  1 megaraid_mbox
megaraid               33859  0
aacraid                68394  0
sx8                    10844  0
DAC960                 61942  0
cciss                  43739  0
3w_9xxx                29090  0
3w_xxxx                20764  0
mptsas                 32858  0
scsi_transport_sas     21333  3 libsas,mptsas,aic94xx
mptfc                  10188  0
scsi_transport_fc      39365  3 lpfc,qla2xxx,mptfc
mptspi                 11202  0
mptscsih               16081  3 mptfc,mptsas,mptspi
mptbase                54327  4 mptfc,mptsas,mptspi,mptscsih
atp870u                22200  0
dc395x                 26688  0
qla1280                19120  0
imm                     8729  0
parport                26491  1 imm
dmx3191d                9026  0
sym53c8xx              61643  0
gdth                   71653  0
advansys               44056  0
initio                 14876  0
BusLogic               19039  0
arcmsr                 23914  0
aic7xxx               103914  0
aic79xx               108306  0
scsi_transport_spi     17275  5 mptspi,sym53c8xx,aic79xx,aic7xxx,dmx3191d
sg                     21833  0
pdc_adma                5245  0
sata_inic162x           6565  0
sata_mv                23393  0
ata_piix               22567  0
sata_qstor              5028  0
sata_vsc                3977  0
sata_uli                2964  0
sata_sis                3597  0
sata_sx4                7867  0
sata_nv                18226  0
sata_via                7635  0
sata_svw                4285  0
sata_sil24             10055  0
sata_sil                7167  0
sata_promise            9783  0
pata_sl82c105           3597  0
pata_via                8268  0
pata_jmicron            2419  0
pata_marvell            2867  0
pata_sis               10214  1 sata_sis
pata_netcell            2201  0
pata_pdc202xx_old       4414  0
pata_triflex            3127  0
pata_atiixp             4435  0
pata_opti               2761  0
pata_amd               10191  0
pata_ali                9061  0
pata_it8213             3386  0
pata_pcmcia             9724  0
pcmcia                 29243  1 pata_pcmcia
pcmcia_core            10792  1 pcmcia
pata_ns87415            3220  0
pata_ns87410            2760  0
pata_serverworks        5436  0
pata_artop              4838  0
pata_it821x             8349  0
pata_optidma            4465  0
pata_hpt3x2n            5436  0
pata_hpt3x3             2992  0
pata_hpt37x            10896  0
pata_hpt366             4848  0
pata_cmd64x             6802  0
pata_efar               3534  0
pata_rz1000             2701  0
pata_sil680             4529  0
pata_radisys            2914  0
pata_pdc2027x           6227  0
pata_mpiix              2854  0
usbhid                 22361  0
ehci_pci                3240  0
ahci                   23427  2
libahci                18718  1 ahci
libata                140419  49 ahci,pata_pdc202xx_old,sata_inic162x,pata_efar,pata_opti,sata_sil,sata_sis,sata_sx4,sata_svw,sata_uli,sata_via,sata_vsc,pata_marvell,sata_promise,sata_mv,sata_nv,libahci,sata_qstor,sata_sil24,pata_netcell,pata_ali,pata_amd,pata_sis,pata_via,pata_sl82c105,pata_triflex,pata_ns87410,pata_ns87415,libsas,pdc_adma,pata_artop,pata_atiixp,pata_mpiix,pata_cmd64x,pata_hpt3x2n,pata_optidma,pata_hpt366,pata_hpt37x,pata_hpt3x3,pata_it8213,pata_it821x,pata_serverworks,pata_pcmcia,pata_sil680,pata_rz1000,ata_piix,pata_jmicron,pata_radisys,pata_pdc2027x
xhci_hcd               82500  0
ehci_hcd               34587  1 ehci_pci
ptp                     8828  2 tg3,e1000e
usbcore               139230  9 uhci_hcd,usb_storage,ohci_hcd,ohci_pci,ehci_hcd,ehci_pci,usbhid,xhci_hcd,sl811_hcd
usb_common              1512  1 usbcore
pps_core                5672  1 ptp
# service acpid status
 * status: started



What should I do anymore?
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chithanh
Developer
Developer


Joined: 05 Aug 2006
Posts: 2152
Location: Berlin, Germany

PostPosted: Fri Oct 30, 2015 3:44 pm    Post subject: Reply with quote

In order to manage the backlight, CONFIG_BACKLIGHT_CLASS_DEVICE=y should give you a /sys/class/backlight directory with the controls inside. This appears to not happen on your system. Check dmesg why.

It may be that CONFIG_THINKPAD_ACPI_VIDEO competes with CONFIG_ACPI_VIDEO over control of the backlight device.
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Roman_Gruber
Advocate
Advocate


Joined: 03 Oct 2006
Posts: 3806
Location: Austro Bavaria

PostPosted: Fri Oct 30, 2015 9:59 pm    Post subject: Reply with quote

wikis are your friend. e.g.: https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X240

http://blog.gabrielsaldana.org/debian-on-lenovo-thinkpad-x240/

Quote:
The screen brightness control keys by default didn’t work for me, but there is a fix. You need to load the thinkpad acpi kernel module on boot. So edit /etc/modules file and add:

thinkpad_acpi

Then you’ll need to add this to your /etc/default/grub file and check that your kernel options are as follows:

RUB_CMDLINE_LINUX_DEFAULT="quiet acpi_osi=!Windows2012 acpi_backlight=vendor"

This will enable the volume, mute, brightness and wireless media keys. I haven't been able to make the microphone mute button work.

The keyboard backlight works by default using FN+spacebar and it looks nice. It has three states: dim, bright and off.


http://www.ubuntu.com/certification/hardware/201307-14019/

http://www.tfiu.de/x240/
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Roman_Gruber
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Joined: 03 Oct 2006
Posts: 3806
Location: Austro Bavaria

PostPosted: Sat Oct 31, 2015 3:48 pm    Post subject: Reply with quote

question to the topic poster: Does this works or not? Feedback appreciated, thank you
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