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K70 MX-Blue Pipe/Backslash repeating issue on Linux


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My brand new K70 is experiencing the same problem on Linux as this thread:



Note: this problem only occurs on Linux, works fine on windows


A simple reproduction scenario:

1) Hold shift

2) Press '|'

3) Release shift


I get '|\\' printed out every time. The bug isn't specific to shift, you can press any key with the '|' key in the same way and multiple backslashes will be printed out.


The problem goes away if I put the keyboard in BIOS mode, but then I have to deal with a flashing light.


Hardware: K70 MX-Blue

Firmware: 1.09B.

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This may or may not be relevant:


The '\' (Pipe/Backslash) key is the only key that doesn't repeat when held down. Holding the key will only ever send a single character. The other keys (forward slash for instance) will repeat normally.


Again, this is Linux only.

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  • 4 months later...

Hey jeffupt, can you have a look at the output from lsusb on your system?


I'm trying to figure out whether the Corsair Vengeance and Gigabyte Osmium keyboards share the same or similar controller chips. From there I want to contact the controller vendor to see what we can get from them regarding specs on their chips. Maybe then the Linux community can properly support these keyboards..


The two devices associated with the Gigabyte Osmium keyboard are:

$ lsusb
Bus 001 Device 005: ID 1044:7a03 Chu Yuen Enterprise Co., Ltd 
Bus 001 Device 004: ID 0665:6000 Cypress Semiconductor 


And from dmesg:

$ dmesg | grep keyboard
[    4.633167] usb 1-4.1: Product: Gaming keyboard
[    4.635106] input: A1  Gaming keyboard as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4.1/1-4.1:1.0/input/input10
[    4.635547] hid-generic 0003:0665:6000.0002: input,hidraw1: USB HID v1.11 Keyboard [A1  Gaming keyboard] on usb-0000:00:12.2-4.1/input0
[    4.637164] input: A1  Gaming keyboard as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4.1/1-4.1:1.1/input/input11
[    4.637355] hid-generic 0003:0665:6000.0003: input,hidraw2: USB HID v1.11 Device [A1  Gaming keyboard] on usb-0000:00:12.2-4.1/input1
[    4.639376] input: A1  Gaming keyboard as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4.1/1-4.1:1.2/input/input12
[    4.639538] hid-generic 0003:0665:6000.0004: input,hidraw3: USB HID v1.11 Keyboard [A1  Gaming keyboard] on usb-0000:00:12.2-4.1/input2


There's a thread over at the Arch Linux forums about the Gigabyte Osmium, which might be worth following (see https://bbs.archlinux.org/viewtopic.php?id=151852 ). The patch for the Corsair keyboard and the non/repeating backslash mentioned in your first post here ( http://forum.corsair.com/v3/showthread.php?t=119654 ) works for the Osmium keyboard as well.

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