intel HD 3000

i have a small probleme when i put the acer 5744 in charge all its ok but when unplug it the brightness get too lower and i cant know how it's work
all i know that this is my source list and Attachment 75 this is the xorg:

Quote:

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~# cat /var/log/Xorg.0.log
[ 1897.958]
X.Org X Server 1.12.4
Release Date: 2012-08-27
[ 1897.958] X Protocol Version 11, Revision 0
[ 1897.958] Build Operating System: Linux 2.6.32-5-amd64 i686 Debian
[ 1897.958] Current Operating System: Linux ghost 3.7-trunk-686-pae #1 SMP Debian 3.7.2-0+kali6 i686
[ 1897.958] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.7-trunk-686-pae root=UUID=7f503352-f02e-4558-899e-d2cc59ab80c8 ro initrd=/install/gtk/initrd.gz quiet
[ 1897.958] Build Date: 29 November 2012 08:52:43PM
[ 1897.958] xorg-server 2:1.12.4-4 (Julien Cristau <[email protected]>)
[ 1897.958] Current version of pixman: 0.26.0
[ 1897.958] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.

[ 1897.977] (WW) Falling back to old probe method for vesa
[ 1897.977] (WW) Falling back to old probe method for fbdev
[ 1897.977] (II) Loading sub module "fbdevhw"
[ 1897.977] (II) LoadModule: "fbdevhw"
[ 1897.977] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 1897.978] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 1897.978] compiled for 1.12.4, module version = 0.0.2
[ 1897.978] ABI class: X.Org Video Driver, version 12.1
[ 1897.978] drmOpenDevice: node name is /dev/dri/card0
[ 1897.978] drmOpenDevice: open result is 8, (OK)
[ 1897.978] drmOpenByBusid: Searching for BusID pci:0000:00:02.0
[ 1897.978] drmOpenDevice: node name is /dev/dri/card0
[ 1897.978] drmOpenDevice: open result is 8, (OK)
[ 1897.978] drmOpenByBusid: drmOpenMinor returns 8
[ 1897.978] drmOpenByBusid: drmGetBusid reports pci:0000:00:02.0
[ 1897.978] (II) intel(0): Creating default Display subsection in Screen section
"Default Screen Section" for depth/fbbpp 24/32
[ 1897.978] (==) intel(0): Depth 24, (--) framebuffer bpp 32
[ 1897.978] (==) intel(0): RGB weight 888

[ 1898.040] (II) intel(0): Output DP1 has no monitor section
[ 1898.040] (II) intel(0): EDID for output LVDS1
[ 1898.040] (II) intel(0): Manufacturer: AUO Model: 26ec Serial#: 0
[ 1898.040] (II) intel(0): Year: 2009 Week: 1
[ 1898.040] (II) intel(0): EDID Version: 1.3
[ 1898.040] (II) intel(0): Digital Display Input
[ 1898.040] (II) intel(0): Max Image Size [cm]: horiz.: 34 vert.: 19
[ 1898.040] (II) intel(0): Gamma: 2.20
[ 1898.040] (II) intel(0): No DPMS capabilities specified
[ 1898.040] (II) intel(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4
[ 1898.040] (II) intel(0): First detailed timing is preferred mode
[ 1898.040] (II) intel(0): redX: 0.577 redY: 0.333 greenX: 0.333 greenY: 0.554
[ 1898.040] (II) intel(0): blueX: 0.161 blueY: 0.144 whiteX: 0.313 whiteY: 0.329
[ 1898.040] (II) intel(0): Manufacturer's mask: 0
[ 1898.040] (II) intel(0): Supported detailed timing:
[ 1898.040] (II) intel(0): clock: 71.8 MHz Image Size: 344 x 193 mm
[ 1898.041] (II) intel(0): h_active: 1366 h_sync: 1414 h_sync_end 1446 h_blank_end 1526 h_border: 0
[ 1898.041] (II) intel(0): v_active: 768 v_sync: 771 v_sync_end 777 v_blanking: 784 v_border: 0
[ 1898.041] (II) intel(0): Unknown vendor-specific block f
[ 1898.041] (II) intel(0): AUO
[ 1898.041] (II) intel(0): B156XW02 V6
[ 1898.041] (II) intel(0): EDID (in hex):
[ 1898.041] (II) intel(0): 00ffffffffffff0006afec2600000000
[ 1898.041] (II) intel(0): 01130103802213780ad7759355558d29
[ 1898.041] (II) intel(0): 24505400000001010101010101010101
[ 1898.041] (II) intel(0): 0101010101010c1c56a0500010303020
[ 1898.041] (II) intel(0): 360058c1100000180000000f00000000
[ 1898.041] (II) intel(0): 00000000000000000020000000fe0041
[ 1898.041] (II) intel(0): 554f0a202020202020202020000000fe
[ 1898.041] (II) intel(0): 004231353658573032205636200a0065
[ 1898.041] (II) intel(0): EDID vendor "AUO", prod id 9964
[ 1898.041] (II) intel(0): Printing DDC gathered Modelines:
[ 1898.041] (II) intel(0): Modeline "1366x768"x0.0 71.80 1366 1414 1446 1526 768 771 777 784 -hsync -vsync (47.1 kHz eP)
[ 1898.041] (II) intel(0): Not using default mode "320x240" (doublescan mode not supported)
[ 1898.041] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "512x384" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "640x480" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "640x512" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "800x600" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "896x672" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "928x696" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "960x720" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "576x432" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "680x384" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "680x384" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "700x525" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "720x450" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "800x512" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "840x525" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "840x525" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "960x540" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "960x600" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Not using default mode "1024x768" (doublescan mode not supported)
[ 1898.042] (II) intel(0): Printing probed modes for output LVDS1
[ 1898.042] (II) intel(0): Modeline "1366x768"x60.0 71.80 1366 1414 1446 1526 768 771 777 784 -hsync -vsync (47.1 kHz eP)
[ 1898.042] (II) intel(0): Modeline "1360x768"x59.8 84.75 1360 1432 1568 1776 768 771 781 798 -hsync +vsync (47.7 kHz d)
[ 1898.042] (II) intel(0): Modeline "1360x768"x60.0 72.00 1360 1408 1440 1520 768 771 781 790 +hsync -vsync (47.4 kHz d)
[ 1898.042] (II) intel(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz d)
[ 1898.042] (II) intel(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz d)
[ 1898.042] (II) intel(0): Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz d)
[ 1898.042] (II) intel(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz d)
[ 1898.056] (II) intel(0): EDID for output VGA1
[ 1898.057] (II) intel(0): EDID for output HDMI1
[ 1898.108] (II) intel(0): EDID for output DP1
[ 1898.108] (II) intel(0): Output LVDS1 connected
[ 1898.108] (II) intel(0): Output VGA1 disconnected
[ 1898.108] (II) intel(0): Output HDMI1 disconnected
[ 1898.108] (II) intel(0): Output DP1 disconnected
[ 1898.108] (II) intel(0): Using exact sizes for initial modes
[ 1898.108] (II) intel(0): Output LVDS1 using initial mode 1366x768
[ 1898.108] (II) intel(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[ 1898.108] (II) intel(0): Kernel page flipping support detected, enabling
[ 1898.108] (

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and lspci

Quote:

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00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
02:00.0 Ethernet controller: Atheros Communications Inc. AR8152 v2.0 Fast Ethernet (rev c1)
07:00.0 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (rev 01)

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please if any one can help about anything thanx in advance.

Have you taken a look at your power options? There should be an option for screen brightness for different power configurations.

yes of corse i looked there but no changing at all.thanks