https://bugs.kde.org/show_bug.cgi?id=421476
Bug ID: 421476
Summary: Neon Bluetooth device inactivity timeouts make
keyboard and mouse unusable
Product: neon
Version: unspecified
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: general
Assignee: neon-b...@kde.org
Reporter: jpha...@gmail.com
CC: j...@jriddell.org, neon-b...@kde.org, sit...@kde.org
Target Milestone: ---
SUMMARY
I'm running KDE Neon 5.18 on the 5.3.0-51-generic #44~18.04.2-Ubuntu SMP
kernel, and the Bluetooth subsystem inactivity timeouts for keyboards and mice
is causing serious usability problems.
After a short period - perhaps 60 seconds - moving the mouse doesn't cause a
corresponding move of the cursor...it takes about 2 seconds before a response
is seen. Mouse clicks are similarly delayed, and have been registered at the
wrong screen location. For the keyboard, there is a similar delay, and
sometimes the first keystroke doesn't register, which has led to mistakes
inputting passwords, and erroneous data entry.
I've changed the settings in /etc/bluetooth/input.conf and main.conf, but
nothing changes the problem.
The devices are a logitech keyboard, model K780, a logitech mouse M585 and an
HP mouse X4000b.
This has been a persistent problem ever since I built this machine. As it's so
pervasive, I've stopped using Bluetooth completely.
Machine details....
Powerspec G162, 8 Core AMD Ryzen 7 2700X
48G RAM
The bluetooth adapter is an Intel device. lsusb -v shows...
sudo lsusb -v -d 8087:0aa7
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
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 177
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 100mA
....and a lot more.
syslog has many messages like:-
May 13 12:52:27 Excession plasmashell[2594]:
file:///usr/share/plasma/plasmoids/org.kde.plasma.bluetooth/contents/ui/logic.js:36:
TypeError: Cannot read property 'devices' of undefined
These messages are often repeated many times.
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