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First of all excuse my english, it might be far from perfect as it's not my first language. So, for the problem : since some times now my touchpad behaviour changes as it awakes from sleep.

When I click on the touchpad (up&down/left&right) he then doesn't recognize if I put a second finger on it (so impossible to drag&drop unless I move the finger who clicked). The trackpoint (or a mouse) on the other hand works perfectly fine. the cursor on the screen also tends to lag fastly when I move it with the touchpad.

My laptop is a Lenovo T440s with Ubuntu 16.04 RAM: 8Go CPU: Intel® Core™ i5-4300U CPU @ 1.90GHz × 4

kernel: 4.13.0-32-generic

Synaptic touchpad version

I have already seen some reports of similar bugs (as this one)but either nobody responds or the answer doesn't work.

I really hope someone here might be able to help me with this one as I really can't figure out where to search next. Thank you in advance :).

Medrawt
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1 Answers1

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Ok so I installed an old kernel (4.11.0-14-generic) and it seems to solve the problem. 

apt-cache search linux-image-extra
sudo apt-get install linux-image-extra-4.11.0-14-generic

But it's not really a long term solution as the old kernel version isn't protected against Meltdown/Spectre and I will obviously have problems in the future.

Let's hope there is a new kernel version that doesn't bug soon or a patch for Lenovo's touchpad on the new kernel.

If you have an other solution or remark don't hesitate but as for now I consider the problem "solved".

Medrawt
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