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Bluetooth inactivity timeout making input devices unusable

User avatar jphands
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Hi fellow Neon users,

I'm having Bluetooth inactivity timeout issues on input devices - Keyboard and Mice. Keyboard is Logitech K780 and mice are Logitech M585 and HP X40000b - I tried a non-logitech device in case it was a logitech issue. The devices time out after a short period of inactivity, perhaps 30 seconds, and take time to wake up again, meaning that the keyboard misses at least the first character typed, and the mouse has to be moved for 2 -3 seconds before the cursor start following it. This makes them unusable, especially when typing in a password, if the first character is missing. I've tried changing the settings in /etc/bluetooth - in input.conf and main.conf - and restarting the bluetooth service and also rebooting but nothing changes. The most common suggestion is to set IdleTimeout=0, but that hasn't worked.

Does anyone have additional wisdom to share, or debugging steps to try?


I'm on ....

KDE neon 5.18 User Edition

Here's the /etc/*release* file contents....

::::::::::::::
/etc/lsb-release
::::::::::::::
DISTRIB_ID=neon
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="KDE neon User Edition 5.18"
::::::::::::::
/etc/os-release
::::::::::::::
NAME="KDE neon"
VERSION="5.18"
ID=neon
ID_LIKE="ubuntu debian"
PRETTY_NAME="KDE neon User Edition 5.18"
VARIANT="User Edition"
VERSION_ID="18.04"
HOME_URL="http://neon.kde.org/"
SUPPORT_URL="http://neon.kde.org/"
BUG_REPORT_URL="http://bugs.kde.org/"
LOGO=start-here-kde-neon
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic


Hardware is 8 Core AMD Ryzen 7 2700X machine with 16G RAM.

lsusb -v gives 7 bluetooth devices, all like this...

Bus 001 Device 002: ID 8087:0aa7 Intel Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 224 Wireless
bDeviceSubClass 1 Radio Frequency
bDeviceProtocol 1 Bluetooth
bMaxPacketSize0 64
idVendor 0x8087 Intel Corp.
idProduct 0x0aa7
bcdDevice 0.01
romanbbb
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I'm having the same issue with a bluetooth keyboard - started after upgrading from 18.x to 20.04. It's extremely annoying: often after reading some webpage for 5 min when I use only a wireless mouse and I go back to typing something, it takes 5s for the keyboard to wake up.
thirtytwobit
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I have the same issue. After upgrading to 20.04, bluetooth keyboard idle timeout is too fast. Worked fine in 19.10. I tried to set IdleTimeout to 0 in /etc/bluetooth/input.conf, and also tried to create a udev rule to prevent the timeout. No luck. Keyboard times out quickly, after 30 secs or so, and then takes time to wake up. Any suggestions would be great, it's pretty annoying.

 
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