[SOLVED]Pseudo keyboard freeze/focus confusion

[rockadile]

I have a weird issue where randomly my keyboard stops responding while typing. It is not neccesarily frozen as I can still use it for shortcut keys and what not. This happens several times daily and I've been trying to see what is going on. What I've noticed is that Alt-Tab to another running application and back seems to fix the issue. Using the mouse to switch between applications and back, however, does not. The last time it happenned, I hit the enter key and it opened an application that I had opened earlier in the day from the menu. It appears this may be related to the system getting confused as to what has focus. I am running the Mint 17.1 Cinnamon with all of the latest updates installed. This started happenning within the last few weeks IIRC. Anyone else seeing this wierdness?

[Pjotr]

Please generate an overview of your system like this:
- launch a terminal window and make it fullscreen, to avoid chopped lines;
- copy/paste this command into the terminal:

Code: Select all

inxi -Fxz

if you type: the letter F is a capital letter

Press Enter.

Copy/paste the output in your next message.

[rockadile]

Here you go:

Code: Select all

System:    Host: phllt1008797 Kernel: 3.13.0-24-generic x86_64 (64 bit gcc: 4.8.2)
           Desktop: Cinnamon 2.4.6 (Gtk 3.10.8~8+qiana)
           Distro: Linux Mint 17.1 Rebecca
Machine:   System: Dell product: Latitude E6530 v: 01
           Mobo: Dell model: 0JC5MT v: A01 Bios: Dell v: A11 date: 03/12/2013
CPU:       Dual core Intel Core i7-3520M (-HT-MCP-) cache: 4096 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 11562
           clock speeds: max: 2901 MHz 1: 1200 MHz 2: 1200 MHz 3: 1200 MHz
           4: 1200 MHz
Graphics:  Card: Intel 3rd Gen Core processor Graphics Controller
           bus-ID: 00:02.0
           Display Server: X.Org 1.15.1 drivers: intel (unloaded: fbdev,vesa)
           Resolution: 1360x768@59.8hz, 1280x1024@60.0hz
           GLX Renderer: Mesa DRI Intel Ivybridge Mobile
           GLX Version: 3.0 Mesa 10.1.3 Direct Rendering: Yes
Audio:     Card Intel 7 Series/C210 Series Family High Definition Audio Controller
           driver: snd_hda_intel bus-ID: 00:1b.0
           Sound: Advanced Linux Sound Architecture v: k3.13.0-24-generic
Network:   Card-1: Intel 82579LM Gigabit Network Connection
           driver: e1000e v: 2.3.2-k port: f080 bus-ID: 00:19.0
           IF: eth0 state: up speed: 100 Mbps duplex: full mac: <filter>
           Card-2: Intel Centrino Advanced-N 6205 [Taylor Peak]
           driver: iwlwifi v: in-tree: bus-ID: 02:00.0
           IF: wlan0 state: down mac: <filter>
Drives:    HDD Total Size: 256.1GB (66.9% used)
           ID-1: /dev/sda model: LITEONIT_LCS size: 256.1GB
Partition: ID-1: / size: 227G used: 153G (71%) fs: ext4 dev: /dev/sda2
           ID-2: swap-1 size: 8.45GB used: 0.00GB (0%) fs: swap dev: /dev/sda3
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 34.5C mobo: N/A
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 178 Uptime: 4:23 Memory: 8022.1/15922.9MB
           Init: Upstart runlevel: 2 Gcc sys: 4.8.2
           Client: Shell (bash 4.3.111) inxi: 2.2.19 

[Pjotr]

Might be a driver issue. First try the easy generic solutions: install the latest kernel from the 3.13 series:
https://sites.google.com/site/easylinux ... el-updates
(item 3, right column)

Then reboot.

When no improvement: install the latest kernel from the 3.16 series. Then reboot.

When still no improvement: check for a newer BIOS / UEFI and when available, install it.

If these generic measures don't help any, please report back.

[rockadile]

Upgrading to the latest 3.13 series kernel did not work. However, upgrading to the latest 3.16 kernel appears to have resolved the problem.

Thanks.