CyanogenMod brightness Issue FIXED - Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A

I have installed Cyanogenmod , it is super fast and perfect rom
only one issue that is very major issue for me , is low brightness. I tried many things but no success
Today i got solution , it is very easy
After installing cyanogenmod , install root explorer
go to sysyem/etc directory
Find hw_config.sh file
Tap and hold on this hw_config.sh file , select edit in text viewer option from the menu
Scroll down to the bottom , there you will see this code (i am using FXP054 cyanogenmod , for other versions it may vary)
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds
echo 1,65,255,24,24,5,128 > $dev/lcd-backlight/als/curve # ALS curve for group1
echo 2,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 450 > $dev/button-backlight/max_current
Change above code to
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds
echo 0,0,0,0,0,0,0 > $dev/lcd-backlight/als/curve # ALS curve for group1
echo 2,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 450 > $dev/button-backlight/max_current
Reboot your phone and voila you have fixed brightness problem :
Thanks to xutienan9520
You can also hit thanks button for me

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my hero!

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10000000000000000000000000000 thanks .... life saver

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Many thanks,
I've just tried to do this on FXP106 CM7.2, but the original text in my sh_config.sh is different to yours by a couple of lines so I just want to check what I should be doing before I break something...
It's currently
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds/
echo 0,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 0 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
Should I replace it with this?
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds
echo 0,0,0,0,0,0,0 > $dev/lcd-backlight/als/curve # ALS curve for group1
echo 2,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 450 > $dev/button-backlight/max_current
Any help gratefullly received. I don't really know what this all means so I'm a bit apprehensive to just try it in case it breaks something.

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richratt said:
Many thanks,
I've just tried to do this on FXP106 CM7.2, but the original text in my sh_config.sh is different to yours by a couple of lines so I just want to check what I should be doing before I break something...
It's currently
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds/
echo 0,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 0 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
Should I replace it with this?
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds
echo 0,0,0,0,0,0,0 > $dev/lcd-backlight/als/curve # ALS curve for group1
echo 2,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 450 > $dev/button-backlight/max_current
Any help gratefullly received. I don't really know what this all means so I'm a bit apprehensive to just try it in case it breaks something.
Click to expand...
Click to collapse
Yes i have done this and worked fine for me on FXP 106

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hi! it is same me.
but it work very well!

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Thank a lot！it is work well in fxp 108

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will this work on any xperia phone.i want to try it on my xperia mini..

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akshay13071990 said:
will this work on any xperia phone.i want to try it on my xperia mini..
Click to expand...
Click to collapse
yes it will work on any xperia phone with cyanogenmod

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here is my hw_config.sh:
Code:
# Audio jack configuration
dev=/sys/devices/platform/simple_remote.0
echo 0,201,1600 > $dev/accessory_min_vals # default = 0,200,1600
echo 200,1599 > $dev/accessory_max_vals # default = 200,1600
echo 0,100,280,500,700 > $dev/button_min_vals # default = 0,100,300,600,700
echo 99,199,399,699,5000 > $dev/button_max_vals # default = 99,199,399,699,5000
echo 512 > $dev/btn_trig_period_freq # Button Period Freq(Hz) default = 512
echo 16 > $dev/btn_trig_period_time # Button Period Time(cycle) default = 16
echo 512 > $dev/btn_trig_hyst_freq # Button Hysteresis Freq(Hz) default = 512
echo 16 > $dev/btn_trig_hyst_time # Button Hysteresis Time(Cycle) default = 16
echo 500 > $dev/btn_trig_level # default = 500
# Proximity sensor configuration
dev=/sys/bus/i2c/devices/0-0054/
val_cycle=0
val_nburst=26
val_freq=0
val_threshold=2
val_filter=0
nv_param_loader 60240 prox_cal
val_calibrated=$?
case $val_calibrated in
1)
nv_param_loader 60240 threshold
val_threshold=$?
nv_param_loader 60240 rfilter
val_filter=$?
;;
esac
echo $val_cycle > $dev/cycle # Duration Cycle. Valid range is 0 - 3.
echo $val_nburst > $dev/nburst # Number of pulses in burst. Valid range is 0 - 15. 16 - 31 is a special range for smultron only (SP)
echo $val_freq > $dev/freq # Burst frequency. Valid range is 0 - 3.
echo $val_threshold > $dev/threshold # sensor threshold. Valid range is 0 - 15 (0.12V - 0.87V)
echo $val_filter > $dev/filter # RFilter. Valid range is 0 - 3.
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 3,2,2,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 8000 > $dev/button-backlight-rgb1/max_current
echo 8000 > $dev/button-backlight-rgb2/max_current
echo 1,30,255,54,52,1,65 > $dev/lcd-backlight/als/curve # ALS curve display BL [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 2,48,0,128,128,4,10 > $dev/button-backlight-rgb1/als/curve # ALS curve key LED 1 [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 2,48,0,128,128,4,10 > $dev/button-backlight-rgb2/als/curve # ALS curve key LED 2 [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 3,71,255,64,32,5,37 > $dev/red/als/curve # ALS curve RGB(red) [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 3,71,255,64,32,5,37 > $dev/green/als/curve # ALS curve RGB(green) [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 3,71,255,64,32,5,37 > $dev/blue/als/curve # ALS curve RGB(blue) [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
# Touch panel
dev=/sys/devices/platform/spi_qsd.0/spi0.0
app_id=`cat $dev/appid`
case "$app_id" in
"0x0505")
fw=touch_smultron_innolux.hex
;;
"0x0105")
fw=touch_smultron_sony.hex
;;
"0x0015")
fw=touch_smultron_sony.hex
;;
*)
fw=touch_smultron_sony.hex
;;
esac
cyttsp_fwloader -dev $dev -fw /system/etc/firmware/$fw
# TI BQ275xx firmware loader
bq275xx_fwloader
I'm using cyanogenmod 7.1.0.1, i would like to upgrade to 7.1.0.2 but cyanogenmod just hangs on the animation booting so i've had to stick to this, i don't know which version of FXP i have but i'd like to upgrade to the latest if someone could help with that too.
What should i change to allow me to increase the brightness as it is rather dull?
I'm using Xperia mini btw, not xperia mini pro.
EDIT: just tried changing:
echo 1,30,255,54,52,1,65 > $dev/lcd-backlight/als/curve # ALS curve display BL [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
to:
echo 0,0,0,0,0,0,0 > $dev/lcd-backlight/als/curve # ALS curve display BL [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
but that didn't work, not sure which version of FXP i'm using i'm using cyanogenmod 7.1.0.1.

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Hi, congratulations for the fix!! It solved my problem \o! But I'm curious, what is the hw_config.sh file and what the changing into 0 values we did do to the system? THankss!

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Maudiefech said:
Hi, congratulations for the fix!! It solved my problem \o! But I'm curious, what is the hw_config.sh file and what the changing into 0 values we did do to the system? THankss!
Click to expand...
Click to collapse
yeah, I really want to try, but before I do, I kinda what to know why it works and what I am actually doing to the phone to achieve the fix?

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Auto brightness working
I think putting the Ambient Light Sensor(als) parameters to 0 effectively disactivates it setting brightness to static aka what's in the configuration app/brightness.
I've gotten the auto brightness working by changing the # LMU AS3676 Configuration to reflect arcatarc's work on his post here :
http://forum.xda-developers.com/showpost.php?p=20001136&postcount=1.
Here's my section:
Code:
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds/
echo 3,2,2,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 12900 > $dev/button-backlight/max_current
I also copied in his als_curve.conf as attached.

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solve backlight fix
http://forum.xda-developers.com/showthread.php?t=1662819 easily flasch with cwm

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xperia ray said:
I have installed Cyanogenmod , it is super fast and perfect rom
only one issue that is very major issue for me , is low brightness. I tried many things but no success
Today i got solution , it is very easy
After installing cyanogenmod , install root explorer
go to sysyem/etc directory
Find hw_config.sh file
Tap and hold on this hw_config.sh file , select edit in text viewer option from the menu
Scroll down to the bottom , there you will see this code (i am using FXP054 cyanogenmod , for other versions it may vary)
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds
echo 1,65,255,24,24,5,128 > $dev/lcd-backlight/als/curve # ALS curve for group1
echo 2,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 450 > $dev/button-backlight/max_current
Change above code to
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds
echo 0,0,0,0,0,0,0 > $dev/lcd-backlight/als/curve # ALS curve for group1
echo 2,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 450 > $dev/button-backlight/max_current
Reboot your phone and voila you have fixed brightness problem :
Thanks to xutienan9520
You can also hit thanks button for me
Click to expand...
Click to collapse
thanx a lot..... you are awesome
its working on CM9.1 and CM10

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Is this fix working for FXP137
aq_aq said:
thanx a lot..... you are awesome
its working on CM9.1 and CM10
Click to expand...
Click to collapse
Hi aq_aq,
I am running CM 9.1 FXP137. and i am facing the same brightness issue will this fix work for FXP 138?
thanks in advance!

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it will work.
take note that what you will see there now is this :
Change above code to
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds
echo 0,0,0,0,0,0,0 > $dev/lcd-backlight/als/curve # ALS curve for group1
echo 2,0,0,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 450 > $dev/button-backlight/max_current
Change
echo 1 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
To
echo 0 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h

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There is an easier way to do it!
OR you can download this file http://www.mediafire.com/?t619gplc0x0tex7
And flash it with CWM (recovery mode).
It solved my issue

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Here's my file:
# LMU AS3676 Configuration
dev=/sys/devices/i2c-0/0-0040/leds
echo 0 > $dev/lcd-backlight/als/enable #Sensor on/off. 1 = on, reg 90h
echo 0 > $dev/button-backlight-rgb1/als/enable #Sensor on/off. 1 = on, reg 90h
echo 0 > $dev/button-backlight-rgb2/als/enable #Sensor on/off. 1 = on, reg 90h
echo 0 > $dev/button-backlight/als/enable
echo 0 > $dev/keyboard-backlight/als/enable
echo 0 > $dev/red/als/enable #Sensor on/off. 1 = on, reg 90h
echo 0 > $dev/green/als/enable #Sensor on/off. 1 = on, reg 90h
echo 0 > $dev/blue/als/enable #Sensor on/off. 1 = on, reg 90h
echo 3,2,2,0 > $dev/lcd-backlight/als/params #[gain],[filter_up],[filter_down],[offset]
echo 8000 > $dev/button-backlight-rgb1/max_current
echo 8000 > $dev/button-backlight-rgb2/max_current
echo 1,30,255,54,52,1,65 > $dev/lcd-backlight/als/curve # ALS curve display BL [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 2,48,0,128,128,4,10 > $dev/button-backlight-rgb1/als/curve # ALS curve key LED 1 [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 2,48,0,128,128,4,10 > $dev/button-backlight-rgb2/als/curve # ALS curve key LED 2 [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 3,71,255,64,32,5,37 > $dev/red/als/curve # ALS curve RGB(red) [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 3,71,255,64,32,5,37 > $dev/green/als/curve # ALS curve RGB(green) [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
echo 3,71,255,64,32,5,37 > $dev/blue/als/curve # ALS curve RGB(blue) [grp],[Y0],[Y3],[K1],[K2],[X1],[X2]
What should I change? Thanks!