dgoradia Posted March 13, 2008 Share Posted March 13, 2008 Ok well, this worked for my synaptics trackpad, i got it from a post on a forum i found on google. It might even be this forum. Anyway, I have a HP DV9000t laptop witha synaptics trackpad. edit Info.plist using root login or using the terminal... Info.plist is located in /System/Library/Extensions/ApplePS2Controller.kext/Contents/PlugIns/ApplePS2Trackpad.kext/Contents/ edit this part of the file <key>Synaptics TouchPad</key> <dict> <key>CFBundleIdentifier</key> <string>com.apple.driver.ApplePS2Trackpad</string> <key>IOClass</key> <string>ApplePS2SynapticsTouchPad</string></font> <key>IOProbeScore</key> <integer>5000</integer> <key>IOProviderClass</key> <string>ApplePS2MouseDevice</string></font> </dict> Just remove the "Apple" so it reads <key>Synaptics TouchPad</key> <dict> <key>CFBundleIdentifier</key> <string>com.apple.driver.ApplePS2Trackpad</string> <key>IOClass</key> <string>PS2SynapticsTouchPad</string></font> <key>IOProbeScore</key> <integer>5000</integer> <key>IOProviderClass</key> <string>PS2MouseDevice</string></font> </dict> Make sure to repair permissions otherwise it might not boot properly. Open Terminal and type sudo su - enter your password if requested chown -R root:wheel /System/Library/Extensions/ApplePS2Controller.kext/Contents/PlugIns/ApplePS2Trackpad.kext/Contents/Info.plist chmod -R 755 /System/Library/Extensions/ApplePS2Controller.kext/Contents/PlugIns/ApplePS2Trackpad.kext/Contents/Info.plist exit you may now reboot Link to comment Share on other sites More sharing options...
dgoradia Posted March 26, 2008 Author Share Posted March 26, 2008 If this doesn't work for you then what also worked for me is when i deleted ApplePS2Trackpad.kext located: /System/Library/Extensions/ApplePS2Controller.kext/Contents/Plugins/ Try this at your own risk and be sure to backup. Some users have reported not being able to boot after this. If that happens, you can boot into "-s" and move the backup that you made. (hope you made a backup) I found this somewhere else on the forum, posted by derekreid. Link to comment Share on other sites More sharing options...
Operating Systems Posted January 3, 2009 Share Posted January 3, 2009 Wow! This works like a charm! I am using an HP DV8230CA with Synaptics Touch pad and running under 10.5.6. Following the instructions and delete the ApplePS2Trackpad.kext in /System/Library/Extensions/ApplePS2Controller.kext/Contents/Plugins/ make it work very nicely. Thank you. Link to comment Share on other sites More sharing options...
mschilling Posted January 3, 2009 Share Posted January 3, 2009 How can you find out if you have a Synaptics trackpad? Link to comment Share on other sites More sharing options...
mschilling Posted January 4, 2009 Share Posted January 4, 2009 Can someone tell me what I have from this? Link to comment Share on other sites More sharing options...
kreizboi Posted January 5, 2009 Share Posted January 5, 2009 Will this work on 10.5.3? Link to comment Share on other sites More sharing options...
Zi_Instigator Posted January 15, 2009 Share Posted January 15, 2009 With the laptop in my sig : work perfectly. To kreizboi : Yes. Link to comment Share on other sites More sharing options...
Madremiha Posted January 17, 2009 Share Posted January 17, 2009 Works very well on My HP 9760EF with Synaptics trackpad !! Thank you ! Link to comment Share on other sites More sharing options...
keypox Posted January 22, 2009 Share Posted January 22, 2009 This enabled scrolling for you guys? This only enabled clicking on my trackpad... i would love to get the scrolling working these easily ! Link to comment Share on other sites More sharing options...
lemmy01 Posted January 22, 2009 Share Posted January 22, 2009 This enables scrolling? What kind of scrolling? Two finger,scrolling on the right side of the touchpad or some other sort of scrolling? thanks ralf Link to comment Share on other sites More sharing options...
cyclonefr Posted January 22, 2009 Share Posted January 22, 2009 Thanks a lot for the trick. For me removing the kext enabled scrolling on the right side of the touchpad while altering the Info.plist like you posted enabled 2 finger scrolling but it's a bit dogdy (Synaptics doesnt like it much it seems but it works) Link to comment Share on other sites More sharing options...
kreizboi Posted January 22, 2009 Share Posted January 22, 2009 thanks guys, i will try it. cross my fingers. Link to comment Share on other sites More sharing options...
whizkid515 Posted January 22, 2009 Share Posted January 22, 2009 Can someone tell me what I have from this? I'm almost positive all laptops have a synaptics touchpad. Here's how you can tell. In Windows, look in your system tray. If you see a red square with what looks like a hand-drawn zero, or if there's a gray square with a green dot in the middle when you press down on it, you have one. If you have a scroll arrow thing on the side, it's definitely a Synaptics. Link to comment Share on other sites More sharing options...
derekreid Posted January 23, 2009 Share Posted January 23, 2009 I'm almost positive all laptops have a synaptics touchpad. Not so, there are also ALPS trackpads. I know nothing about them, but people should be cautious using fixes if they aren't sure what type of trackpad they have. You can probably find out what you have in Device Manager in Windows. Link to comment Share on other sites More sharing options...
tdo Posted April 3, 2009 Share Posted April 3, 2009 tried both methods and only clicking works with the pad no scrolling i have an acer 5570z btw Link to comment Share on other sites More sharing options...
cawas Posted May 13, 2009 Share Posted May 13, 2009 thanks dgoradia! worked great on my MSI laptop, MS-163A, kalyway 10.5.2 (still not upgraded). and I don't know if it's synaptics or not. i'm just not sure which method, since i've applied both at same and only time. it's the expected single scrolling, of course. the two fingers depends on hardware... or a really new probably never-released firmware/software which could emulate the hardware. but, oddly, I could see its options on Keyboard & Mouse whether now I can not anymore. I've made clicking work before exactly by going there. Link to comment Share on other sites More sharing options...
cawas Posted August 14, 2009 Share Posted August 14, 2009 thanks dgoradia! worked great on my MSI laptop, MS-163A, kalyway 10.5.2 (still not upgraded). and I don't know if it's synaptics or not. i'm just not sure which method, since i've applied both at same and only time. it's the expected single scrolling, of course. the two fingers depends on hardware... or a really new probably never-released firmware/software which could emulate the hardware. but, oddly, I could see its options on Keyboard & Mouse whether now I can not anymore. I've made clicking work before exactly by going there. Back then there were three changes I've made as instructed in the topic: - removed "Apple" in the file /System/Library/Extensions/ApplePS2Controller.kext/Contents/PlugIns/ApplePS2Trackpad.kext/Contents/Info.plist through modifing the two lines 1. from: <string>ApplePS2SynapticsTouchPad</string> to: <string>PS2SynapticsTouchPad</string> 2. from: <string>ApplePS2MouseDevice</string> to: <string>PS2MouseDevice</string> - and repaired the permissions. then, before rebooting, I've also "removed" the file 3. /System/Library/Extensions/ApplePS2Controller.kext/Contents/Plugins/ApplePS2Trackpad.kext - by renaming it and adding ".bak" to the file name, without realizing it was actually the same file. Now I actually made the way back. I've re-added "Apple" to the first line and re-added the kext file (actually I just renamed it back) and I've just randomly left the PS2MouseDevice unchanged, hoping it will keep my synaptic "wheel" working. And it did! After rebooting, everything is same as after I did those changes mentioned above, months ago. Unfortunately that wouldn't bring the options back on the System Preferences, as I was expecting. Next I'll try to even set that last line back (thus reverting all changes) and reboot to see what happens and then report back here. Sorry if I'm wrongly using this forum as a way to log my experimentation. edit: Well, kextstatus show trackpad not running, so I tried kextload, and it loads, and I can confirm on status, but nothing changes. After couple minutes kextstatus show no trackpad again. I have no idea how to debug this so I'll leave for another time once again to try fixing all this. Hopefully this info can help someone else with more time in his/her hands. peace out. Link to comment Share on other sites More sharing options...
reeg Posted August 14, 2009 Share Posted August 14, 2009 So is there a kext or package to install that's a guaranteed fix at all? I have a 6910p, but i want to be able to tap and scroll on the touch pad. Currently I have to use the buttons. Link to comment Share on other sites More sharing options...
derekreid Posted August 14, 2009 Share Posted August 14, 2009 VoodooPS2Controller has come out fairly recently, google it. Link to comment Share on other sites More sharing options...
reeg Posted August 14, 2009 Share Posted August 14, 2009 VoodooPS2Controller has come out fairly recently, google it. Just installed that and followed all instructions, but now my pad doesn't work at all. Thank goodness I have a USB mouse, but what the hell went wrong? How can I get my pad to work again? Link to comment Share on other sites More sharing options...
derekreid Posted August 14, 2009 Share Posted August 14, 2009 Just installed that and followed all instructions, but now my pad doesn't work at all. Thank goodness I have a USB mouse, but what the hell went wrong? How can I get my pad to work again? There should be uninstall instructions, but basically delete the installed kexts and restore your backup ApplePS2Controller. The VoodooPS2Controller didn't work for me either...but it has for most people. I got tapping and scrolling to work on my Synaptics touchpad by deleting ApplePS2Touchpad.kext in S/L/E/ApplePS2Controller/Contents/PlugIns/ as described in the second post of this thread. Have you tried that? Link to comment Share on other sites More sharing options...
reeg Posted August 14, 2009 Share Posted August 14, 2009 Somebody please help. I really need to get this track pad working again. I have a DJ gig tomorrow night and I need to use that track pad with Serato. Link to comment Share on other sites More sharing options...
reeg Posted August 14, 2009 Share Posted August 14, 2009 There should be uninstall instructions, but basically delete the installed kexts and restore your backup ApplePS2Controller. The VoodooPS2Controller didn't work for me either...but it has for most people. I got tapping and scrolling to work on my Synaptics touchpad by deleting ApplePS2Touchpad.kext in S/L/E/ApplePS2Controller/Contents/PlugIns/ as described in the second post of this thread. Have you tried that? Thanks for the help!! This got my trackpad working again and I'm not that worried about it right now, but the tap and scrolling still doesn't work. But thank you again. Much appreciated. Link to comment Share on other sites More sharing options...
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