Heavy lags with USB keyboard under linux (only)

[mintberryminuscrunch]

Hey
in linux (mint ubuntu) i'm experiencing input lags and even skipped key presses
No problems in windows 7
has anyone experienced similar issues? and can offer a solution?
Never had any problems with PS/2 this only happens with this USB kbrd

The keyboard is Desko made, similar to this one:

DESKO_BMOS5000_02.jpg (22.63 KiB) Viewed 5353 times

[fossala]

Have you tried a different keyboard? Different PC?

[mintberryminuscrunch]

i only have linux on my main pc
I'm going to try a differnt usb keyboard

[fossala]

Have you checked your Xorg logs? "tail -f /var/log/Xorg.0.log"

[mintberryminuscrunch]

disconnect+connect

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[   522.740] (II) config/udev: removing device DESKO GmbH Desko USB-Device
[   522.740] (II) DESKO GmbH Desko USB-Device: Close
[   522.740] (II) UnloadModule: "evdev"
[   522.740] (II) Unloading evdev
[   522.764] (II) config/udev: removing device DESKO GmbH Desko USB-Device
[   522.764] (II) DESKO GmbH Desko USB-Device: Close
[   522.764] (II) UnloadModule: "evdev"
[   522.764] (II) Unloading evdev
[   525.896] (II) config/udev: Adding input device DESKO GmbH Desko USB-Device (/dev/input/mouse0)
[   525.896] (II) No input driver/identifier specified (ignoring)
[   525.897] (II) config/udev: Adding input device DESKO GmbH Desko USB-Device (/dev/input/event3)
[   525.897] (**) DESKO GmbH Desko USB-Device: Applying InputClass "evdev pointer catchall"
[   525.897] (II) Using input driver 'evdev' for 'DESKO GmbH Desko USB-Device'
[   525.897] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[   525.897] (**) DESKO GmbH Desko USB-Device: always reports core events
[   525.897] (**) DESKO GmbH Desko USB-Device: Device: "/dev/input/event3"
[   525.897] (--) DESKO GmbH Desko USB-Device: Found 8 mouse buttons
[   525.897] (--) DESKO GmbH Desko USB-Device: Found scroll wheel(s)
[   525.897] (--) DESKO GmbH Desko USB-Device: Found relative axes
[   525.897] (--) DESKO GmbH Desko USB-Device: Found x and y relative axes
[   525.897] (II) DESKO GmbH Desko USB-Device: Configuring as mouse
[   525.897] (II) DESKO GmbH Desko USB-Device: Adding scrollwheel support
[   525.897] (**) DESKO GmbH Desko USB-Device: YAxisMapping: buttons 4 and 5
[   525.897] (**) DESKO GmbH Desko USB-Device: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[   525.897] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.1/input/input9/event3"
[   525.897] (II) XINPUT: Adding extended input device "DESKO GmbH Desko USB-Device" (type: MOUSE)
[   525.897] (II) DESKO GmbH Desko USB-Device: initialized for relative axes.
[   525.897] (**) DESKO GmbH Desko USB-Device: (accel) keeping acceleration scheme 1
[   525.897] (**) DESKO GmbH Desko USB-Device: (accel) acceleration profile 0
[   525.897] (**) DESKO GmbH Desko USB-Device: (accel) acceleration factor: 2.000
[   525.897] (**) DESKO GmbH Desko USB-Device: (accel) acceleration threshold: 4
[   525.913] (II) config/udev: Adding input device DESKO GmbH Desko USB-Device (/dev/input/event2)
[   525.913] (**) DESKO GmbH Desko USB-Device: Applying InputClass "evdev keyboard catchall"
[   525.913] (II) Using input driver 'evdev' for 'DESKO GmbH Desko USB-Device'
[   525.913] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[   525.913] (**) DESKO GmbH Desko USB-Device: always reports core events
[   525.913] (**) DESKO GmbH Desko USB-Device: Device: "/dev/input/event2"
[   525.913] (--) DESKO GmbH Desko USB-Device: Found keys
[   525.913] (II) DESKO GmbH Desko USB-Device: Configuring as keyboard
[   525.913] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.0/input/input8/event2"
[   525.913] (II) XINPUT: Adding extended input device "DESKO GmbH Desko USB-Device" (type: KEYBOARD)
[   525.913] (**) Option "xkb_rules" "evdev"
[   525.913] (**) Option "xkb_model" "pc105"
[   525.913] (**) Option "xkb_layout" "de"
[   526.254] (II) XKB: reuse xkmfile /var/lib/xkb/server-6EDD3E719D2B0973D03641546DA8CCADCE7019E5.xkm
[   526.269] (II) XKB: reuse xkmfile /var/lib/xkb/server-6EDD3E719D2B0973D03641546DA8CCADCE7019E5.xkm
[   526.275] (II) XKB: reuse xkmfile /var/lib/xkb/server-6EDD3E719D2B0973D03641546DA8CCADCE7019E5.xkm

don't see any issues.
funny thing though

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[   111.704] (II) Ruling Technologies Sdn. Bhd. SteelSeries Gaming Device: Configuring as keyboard
[   525.897] (II) DESKO GmbH Desko USB-Device: Configuring as mouse

mouse also as kbrd
kbrd also as mouse

[fossala]

Is your cpu being maxed out when typing? Have you tried a different distro (preferably non-ubuntu based) or different version of mint (they have just released there crappy gnome3 version)?
Other than that you may get more help on linuxquestions or ubuntu/mint forums.
EDIT: for quick advice jump on freenode

[mintberryminuscrunch]

Is your cpu being maxed out when typing?

don't think so

Have you tried a different distro (preferably non-ubuntu based) or different version of mint (they have just released there crappy gnome3 version)?

tell me about it
currently jumping distros a lot but i'm always having some problems i don't want to deal with

Other than that you may get more help on linuxquestions or ubuntu/mint forums.

i googled it before, but couldn't find any solutions.
some ppl that reported similar problems, resolved it by updating the kernel, but those were older versions that mine :/

[fossala]

Just use a live cd/dvd to check.

[Gilgam]

does it happen with some apps or even in the console ?

[mintberryminuscrunch]

it's hard to reproduce, it happens randomly, i sometimes have the feeling that the keyboard needs to "wake up" so to speak
but that could be coincidence
it has happened in the console/terminal, too

[Gilgam]

for me it happens mostly on windows when firefox is on a heavy website, whatever the keyboard.
On ubuntu, never but i don't do the same thing and the keyboards used are different.

Have you tried via an Usb-> ps2 plug?

[mintberryminuscrunch]

Have you tried via an Usb-> ps2 plug?

not yet, not sure if it supports ps/2
I'm going to test other distros (since i'm looking for one to use on my Laptop anyways) etc. and report afterwards.

[HaaTa]

This may be due to odd powersaving rules on the keyboard side.

I haven't done it in a while, but per USB device, you can disable powersaving. If not you can just try and disable all powersaving from the grub boot line.