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Old 08-08-2015, 12:51 AM
DGAF DGAF is offline
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Join Date: Aug 2015
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Default Downgrade firmware on R65?

Plug the keyboard in at work (Windows) - works great.

Get home, boot into Linux and am pleasantly surprised to find the keyboard works at LUKS PBA password prompt and in Linux. I download ckb and spend 10 minutes faffing around with patterns and colours.

Reboot into Windows and download/install the latest CUE software. Spend a further 10 minutes deciding on a pleasant lighting arrangement. Notice there is a new firmware available (1.30). Install said firmware and call it a night.

Wake up today and boot into Linux. No more keyboard. Sometimes registers every 5th key press. No amount of switch fiddling or unplugging seems to help. Works fine in Windows.

Can I downgrade the firmware back to 1.whatever it was when I bought the keyboard?

Linux ckb no longer detects the keyboard. System is current spewing these in syslog:

[ 7768.464060] usb 3-2: reset full-speed USB device number 8 using uhci_hcd
[ 7769.012071] usb 3-2: reset full-speed USB device number 8 using uhci_hcd
[ 7769.559069] usb 3-2: reset full-speed USB device number 8 using uhci_hcd
[ 7770.107063] usb 3-2: reset full-speed USB device number 8 using uhci_hcd

Edit: Corsair Gaming K65 RGB Mechanical Gaming Keyboard Cherry Red
Edit: Linux localhost.localdomain 3.19.8-100.fc20.x86_64 #1 SMP Tue May 12 17:08:50 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Last edited by DGAF; 08-08-2015 at 12:55 AM.
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