Jump to content

Latitude 7490: TouchPad close to fully working with new I2C Alps kext


Recommended Posts

@juico @blankmac Just gave your new Alps kext a try on my 7490. Touchpad is working. Still no luck with the buttons. 


Also found something interesting. If I place my finger on the touchpad and then hit the button it works! Both buttons working for left click if I place one finger and right click when place two fingers.. I think we are close to succeed on the touchpad buttons soon.

  • Haha 1
Link to comment
Share on other sites

Just tried the AlpsHID_PTP_test on my Lat E7280 running Catalina 10.15.7 with latest sec updates, etc.


TrackPad buttons are still dead for me unless I am in contact with the trackpad :(

The TrackPad, itself seems nice and smooth, I don't do too many finger acrobatics tho'.


I have been trying the 1.2 git version and had no better luck with that so stopped by here for a visit.


So the TrackPad buttons are functioning properly, i.e. like a mouse, for some of you ?


Is the 1.2 git version more evolved than the test version above ?



Link to comment
Share on other sites

Huh, ok thanks for that. I will be probably updating in the next few days.


Interestingly enough, I get good, normal trackpad button response by rolling back to the previous AlpsT4USB.kext v1.5.


Left button works perfectly w/o the need to be in contact with the trackpad and right button is usually ok too but not 100%.


Maybe this kext is not so popular because of limited gestures ? I dunno, and don't care as all that I really use is 2 finger scrolling.


I'll go back to the AlpsHID.kext if trackpad button functionality returns with Big Sur and/or AlpsT4USB.kext stops functioning.


But, otherwise, dead trackpad buttons is a real deal killer for me so I'll keep cruising with the older version.


  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...