Pavilion 15 ab062nl: HP Pavilion ab062nl 15, SHIFT, CTRL, ALT keys on linux problems

I have a problem with the keyboard of the laptop HP Pavilion 15 ab062nl.
the problem is with the keys ALT SHIFT and CTRL on the keyboard.

for example when I use the shortcut ALT - TAB, after a few seconds, the ALT - TAB menu disappear as if I release the ALT key, but is not so.
Another example is when I surf the web, when I scroll with the mouse wheel, sometimes the beginning of the page to resize, as if I am pressing CTRL command while marching, or if I write a text, sometimes the borwser launch shortcut, as if I am pressing CTRL while I type text , for exaple so I type letter 'b', open bookmarks...

Another example is while I'm typing the text, if I press the SHIFT key and that you start to type, started writing letters and after awhile, written in lowercase as I released shift, but I'm always pressing shift.

for example, if I press SHIFT + s, the result is this:
SSSSSSSSSSSSSSsssssssssssssssssssssssssssssssss
some letters are capitalized, but others are tiny.

I have not found a solution.
the only way to fix it temporarily, makes pressure for a few seconds the shift only, after that, the problem goes away indefinitely, or until the next reboot.

This problem occurs with all versions of ubuntu (x 86 and x86_64), now I use Ubuntu 15.10, but I also tried 15.04, ubuntu 10.04 ubuntu ubuntu ubuntu 12.04, 14.04.

In addition, I have this problem too with the other Distributions of GNU/Linux (I tried Fedora, OpenSuse, ArchLinux, Antergos, Debian, SteamOS).
but is not and the hardware problem, because on Windows 8.1 and Windows 10 I don't have these problems.

I also tried to connect an externa USB keyboard, and if I use external USB keyboard I have no problems.

In my view, is a compatibility issue with this laptop's built-in keyboard.

I tried to follow these problems using XEV, and results which is also if I use a cell phone, sometimes XEV reads an ENTRY from one of these 3 keys (SHIFT, CTRL, ALT) and while I'm pressing one of these major 3, XEV see also if I release and immedialty after press.

This is an example of the input while I touch Left_ALT for awhile

The KeyPress event, series 37, NOT synthetic, window 0x3e00001.
root 0 x 498, subw 0x0, time 129987, (-142,152), root452 476).
YES, State 0 x 10, 64 (keysym 0xffe9, Alt_L) keycode, same_screen
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False

KeyRelease event, series 37, NOT synthetic, window 0x3e00001.
root 0 x 498, subw 0x0, time 130147, (-142,152), root452 476).
YES, State 0 x 18, 64 (keysym 0xffe9, Alt_L) keycode, same_screen
XLookupString gives 0 bytes:
XFilterEvent returns: False

The KeyPress event, series 37, NOT synthetic, window 0x3e00001.
root 0 x 498, subw 0x0, time 130391, (-142,152), root452 476).
YES, State 0 x 10, 64 (keysym 0xffe9, Alt_L) keycode, same_screen
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False

all log here http://pastebin.com/CPGz40aw

and it's the output of xev, leaving the laptop on a few hours without using http://pastebin.com/sYSHAbGy

Thanks for help

I have almost solved the problem

Add this line in the file/etc/default/grub

i8042.nomux=1 i8042.reset i8042.direct

to the

GRUB_CMDLINE_LINUX_DEFAULT

voice

for example, this is my config

GRUB_CMDLINE_LINUX_DEFAULT="i8042.nomux=1 i8042.reset i8042.direct"

grub update and restart

Tags: Notebooks

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