Problem with kernels on Intel Bay Trail platform

[Pawel]

When kernels 3.13.xx mainline is installed the system works rather stable on Intel Bay Trail platform.I mean exactly Packard Bell Easy Note EN TF71BM notebook. One uses Intel CPU N2830. There are two known problems: build in broadcom bluetooth does not work at all and Intel CPU turbo mode (2,41 MHz) does not work. To use cpu clock governors properly it is necessary to remove cpufreqd and cpufrequtils packages, but maximum frequency is 2,19 MHz

When kernels 3.19.xx are installed the system does not even start. When default kernel 3.16.33 for Mate 14.04.2 LTS is installed the system starts but there are problems with mouse pad. 2,41MHz turbo mode works and bluetooth also works. There are problems to close system. When 14.04.2 LTS gets 3.16.xx kernel updates the system does not even start up.

So Mate 14.04.1 is quite usable with 3.13.xx kernels on EN TF71BM but 14.04.2 makes a lot of problems and finally is unusable.

[Pawel (woloszynpwp)]

I can confirm that one of problems can be common with:

https://bugs.launchpad.net/ubuntu-mate/+bug/1473540

In the kernels above 3.16.33 there is no xhci-pci support. One of problems (system does not startup) can be temporalily resolved by disabling xhci support in BIOS

[Pawel (woloszynpwp)]

ENTF71BM laptop uses Elantech 0501 touch pad so commonly known problem with kernels above 3.13 is know in the internet.

How to use linux today ???? Problem with touch pad, problem with startup ....

[Pawel (woloszynpwp)]

I have found that kernel 3.18.7 only works with turbo mode and bluetooth. The rest of kernels is useless.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1473295

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Pawel (woloszynpwp)]

I shall do test probably tomorrow because my laptop returns from service at the moment.

[Pawel (woloszynpwp)]

Sorry, my laptop has returned again to warranty service center. I have to wait again.