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#1 2009-10-19 07:59:46

K0tuk
Member
Registered: 2009-04-06
Posts: 125

Touchpad freezes on Acer 7720g

Hi!

When i installed Arch, i managed to configure my touchpad correctly. It worked flawlessly - scrolling, double tapping, etc. A few system upgrades before (not sure when exactly) i noticed that my touchpad freezes. At some moments it works as it should be working, and at some moments it freezes and does not react to anything, however it does not hang the whole system. Keyboard, USB mouse, my Compiz Standalone - everything works correctly.

My touchpad model i get with

cat /proc/bus/input/devices

is

N: Name="AlpsPS/2 ALPS GlidePoint"

Here is my xorg.conf that used to work:

Section "ServerLayout"
    Identifier     "X.org Configured"
    Screen      0  "Screen0" 0 0
    InputDevice    "Mouse0" "CorePointer"
    InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
    ModulePath   "/usr/lib/xorg/modules"
    FontPath     "/usr/share/fonts/misc"
    FontPath     "/usr/share/fonts/100dpi:unscaled"
    FontPath     "/usr/share/fonts/75dpi:unscaled"
    FontPath     "/usr/share/fonts/TTF"
    FontPath     "/usr/share/fonts/Type1"
EndSection

Section "Module"
    Load  "dri"
    Load  "extmod"
    Load  "dri2"
    Load  "record"
    Load  "glx"
    Load  "dbe"
    Load "synaptics"
EndSection

Section "InputDevice"
    Identifier  "Keyboard0"
    Driver      "kbd"
EndSection


#Section "InputDevice"
#    Identifier  "Mouse0"
#    Driver      "mouse"
#    Option        "Protocol" "auto"
#    Option        "Device" "/dev/input/mice"
#    Option        "ZAxisMapping" "4 5 6 7"
#EndSection

Section "InputDevice"
   Identifier "Mouse0"
   Driver     "synaptics"
   Option "Protocol" "alps"
   #Option     "Protocol"             "auto-dev"
   Option     "Device"               "/dev/input/mice"
   Option     "ZAxisMapping"         "4 5"
   Option     "Emulate3Buttons"      "yes"
   Option     "LeftEdge"             "120"
   Option     "RightEdge"            "830"
   Option     "TopEdge"              "120"
   Option     "BottomEdge"           "650"
   Option     "FingerLow"            "14"
   Option     "FingerHigh"           "15"
   Option     "MaxTapTime"           "180"
   Option     "MaxTapMove"           "110"
   Option     "EmulateMidButtonTime" "75"
   Option     "VertScrollDelta"      "20"
   Option     "HorizScrollDelta"     "20"
   Option     "MinSpeed"             "0.2"
   Option     "MaxSpeed"             "0.5"
   Option     "AccelFactor"          "0.01"
   Option     "EdgeMotionMinSpeed"   "15"
   Option     "EdgeMotionMaxSpeed"   "15"
   Option     "UpDownScrolling"      "1"
   Option     "CircularScrolling"    "1"
   Option     "CircScrollDelta"      "0.1"
   Option     "CircScrollTrigger"    "2"
   Option     "LockedDrags"          "1"
   Option     "SHMConfig"            "on"
   Option      "TapButton1" "1"
   Option      "TapButton2" "2"
   Option      "TapButton3" "3"
   Option     "FastTaps" "1"
EndSection

Section "Monitor"
    Identifier   "Monitor0"
    VendorName   "Monitor Vendor"
    ModelName    "Monitor Model"
      # 800x600 @ 62.00 Hz (GTF) hsync: 38.56 kHz; pclk: 39.49 MHz
      Modeline "800x600_62.00"  39.49  800 832 912 1024  600 601 604 622  -HSync +Vsync
      # 1024x640 @ 62.00 Hz (GTF) hsync: 41.17 kHz; pclk: 54.67 MHz
      Modeline "1024x640_62.00"  54.67  1024 1072 1176 1328  640 641 644 664  -HSync +Vsync
      # 1024x768 @ 62.00 Hz (GTF) hsync: 49.35 kHz; pclk: 66.33 MHz
      Modeline "1024x768_62.00"  66.33  1024 1080 1184 1344  768 769 772 796  -HSync +Vsync
      # 1152x864 @ 62.00 Hz (GTF) hsync: 55.55 kHz; pclk: 84.44 MHz
      Modeline "1152x864_62.00"  84.44  1152 1216 1336 1520  864 865 868 896  -HSync +Vsync
      # 1176x664 @ 62.00 Hz (GTF) hsync: 42.66 kHz; pclk: 65.18 MHz
      Modeline "1176x664_62.00"  65.18  1176 1232 1352 1528  664 665 668 688  -HSync +Vsync
      # 1280x720 @ 62.00 Hz (GTF) hsync: 46.25 kHz; pclk: 77.70 MHz
      Modeline "1280x720_62.00"  77.70  1280 1344 1480 1680  720 721 724 746  -HSync +Vsync
      # 1280x768 @ 62.00 Hz (GTF) hsync: 49.35 kHz; pclk: 82.91 MHz
      Modeline "1280x768_62.00"  82.91  1280 1344 1480 1680  768 769 772 796  -HSync +Vsync
      # 1280x800 @ 62.00 Hz (GTF) hsync: 51.40 kHz; pclk: 86.35 MHz
      Modeline "1280x800_62.00"  86.35  1280 1344 1480 1680  800 801 804 829  -HSync +Vsync
      # 1280x854 @ 62.00 Hz (GTF) hsync: 54.87 kHz; pclk: 93.06 MHz
      Modeline "1280x854_62.00"  93.06  1280 1352 1488 1696  854 855 858 885  -HSync +Vsync
      # 1280x960 @ 62.00 Hz (GTF) hsync: 61.69 kHz; pclk: 105.61 MHz
      Modeline "1280x960_62.00"  105.61  1280 1360 1496 1712  960 961 964 995  -HSync +Vsync
      # 1280x1024 @ 62.00 Hz (GTF) hsync: 65.78 kHz; pclk: 112.62 MHz
      Modeline "1280x1024_62.00"  112.62  1280 1360 1496 1712  1024 1025 1028 1061  -HSync +Vsync
      # 1368x768 @ 62.00 Hz (GTF) hsync: 49.35 kHz; pclk: 88.83 MHz
      Modeline "1368x768_62.00"  88.83  1368 1440 1584 1800  768 769 772 796  -HSync +Vsync
      # 1400x1050 @ 62.00 Hz (GTF) hsync: 67.46 kHz; pclk: 126.82 MHz
      Modeline "1400x1050_62.00"  126.82  1400 1488 1640 1880  1050 1051 1054 1088  -HSync +Vsync
      # 1440x900 @ 62.00 Hz (GTF) hsync: 57.85 kHz; pclk: 111.06 MHz
      Modeline "1440x900_62.00"  111.06  1440 1528 1680 1920  900 901 904 933  -HSync +Vsync
      # 1600x900 @ 62.00 Hz (GTF) hsync: 57.85 kHz; pclk: 123.10 MHz
      Modeline "1600x900_62.00"  123.10  1600 1696 1864 2128  900 901 904 933  -HSync +Vsync
      # 1600x1000 @ 62.00 Hz (GTF) hsync: 64.23 kHz; pclk: 137.71 MHz
      Modeline "1600x1000_62.00"  137.71  1600 1704 1872 2144  1000 1001 1004 1036  -HSync +Vsync
      # 1600x1024 @ 62.00 Hz (GTF) hsync: 65.78 kHz; pclk: 141.04 MHz
      Modeline "1600x1024_62.00"  141.04  1600 1704 1872 2144  1024 1025 1028 1061  -HSync +Vsync
      # 1600x1200 @ 62.00 Hz (GTF) hsync: 77.07 kHz; pclk: 166.46 MHz
      Modeline "1600x1200_62.00"  166.46  1600 1704 1880 2160  1200 1201 1204 1243  -HSync +Vsync
      # 1680x1050 @ 62.00 Hz (GTF) hsync: 67.46 kHz; pclk: 152.18 MHz
      Modeline "1680x1050_62.00"  152.18  1680 1784 1968 2256  1050 1051 1054 1088  -HSync +Vsync
      # 1768x992 @ 62.00 Hz (GTF) hsync: 63.74 kHz; pclk: 150.42 MHz
      Modeline "1768x992_62.00"  150.42  1768 1872 2064 2360  992 993 996 1028  -HSync +Vsync
      # 1920x1080 @ 62.00 Hz (GTF) hsync: 69.38 kHz; pclk: 178.72 MHz
      Modeline "1920x1080_62.00"  178.72  1920 2040 2248 2576  1080 1081 1084 1119  -HSync +Vsync
EndSection

Section "Device"
    Identifier  "Card0"
    Driver      "nvidia"
    VendorName  "nVidia Corporation"
    BoardName   "GeForce 8600M GT"
    BusID       "PCI:1:0:0"
    Option        "no logo"
    
    Option      "RenderAccel" "True"
    Option      "AllowGLXWithComposite" "True"
    Option      "AddARGBGLXVisuals" "True"
    Option      "RenderAccel" "True"
    
    #Option     "RegistryDwords" "PowerMizerEnable=0x3; PerfLevelSrc=0x2233; PowerMizerDefault=0x1; PowerMizerDefaultAC=0x1"
    #Option     "RegistryDwords" "PowerMizerEnable=0x3; PerfLevelSrc=0x2222; PowerMizerDefault=0x1; PowerMizerDefaultAC=0x1"

EndSection

Section "Screen"
    Identifier "Screen0"
    Device     "Card0"
    Monitor    "Monitor0"
    SubSection "Display"
        Viewport   0 0
        Depth     1
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     4
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     8
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     15
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     16
            Modes   "1920x1200" "1920x1080" "1768x992" "1680x1050" "1600x1200" "1600x1024" "1600x1000" "1600x900" "1440x900" "1400x1050" "1368x768" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1280x720" "1176x664" "1152x864" "1024x768" "1024x640" "800x600"
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     24
            Modes   "1920x1200" "1920x1080" "1768x992" "1680x1050" "1600x1200" "1600x1024" "1600x1000" "1600x900" "1440x900" "1400x1050" "1368x768" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1280x720" "1176x664" "1152x864" "1024x768" "1024x640" "800x600"
    EndSubSection
EndSection

Section "Extensions"
        Option    "Composite" "Enable"
EndSection

Anyone else ran into the same problem? Maybe somebody could share his touchpad config that works OK on Acer Laptop?

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#2 2009-10-19 17:20:39

calef13
Member
Registered: 2007-06-10
Posts: 142

Re: Touchpad freezes on Acer 7720g

Just a idea but, you could try disabling kdb and using xorg hotplugging, perhaps this might help. It's a long shot though. Also, it looks like there is a lot of customization in your xorg for you touchpad, so some things, like tapping, might no longer work with hotplugging, or more likely, will require more configuration, so beware. But you can always switch back. The wiki has a good tut on doing this:

http://wiki.archlinux.org/index.php/Xor … quirements

Good luck!

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