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Questions tagged [evdev]

29 questions
12
votes
5 answers

beep not working since upgrade to 20.04.1 LTS

I've just finished upgrading to Ubuntu Server 20.04.1 LTS, and so far, only one issue has come up: When run as user, the beep command returns beep: Error: Could not open any device`. Running sudo beep does not work, as expected. After a little bit…
senthor
  • 319
9
votes
0 answers

Slow Simulated Typing Speed in Ubuntu When Using Nonprintable Characters

I’ve encountered an issue in Ubuntu that seems to have persisted since at least version 20.04. The problem appears to be related to the handling of nonprintable characters such as \n, \t, and \e. Here’s a Python snippet that demonstrates the…
s0ne
  • 111
8
votes
1 answer

Browser automatically refreshes and Home folder window opens

I am facing a very strange problem. Out of the blue, my browser starts refreshing itself infinitely. My first guess was firefox is messing up. I installed chrome. But, it happens in chrome as well. Other than that, sometimes my home folder…
Vikash
  • 133
6
votes
1 answer

lxc nvidia error: xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)

In the process of trying to have lxc container (host 16.04, lxc 14.04) share nvidia I run into this error when starting X in the container: startx -- vt8 I get the following error: xf86EnableIOPorts: failed to set IOPL for I/O (Operation not…
user63726
  • 764
6
votes
0 answers

Switching from libinput to evdev

A few weeks of experimentation with libinput led me to believe that many of its advanced mouse-related features are not (yet?) implemented. Most importantly to me, you cannot block the mouse wheel with it, nor can you emulate the mouse wheel…
sigil
  • 489
5
votes
0 answers

Configuring non wacom drawing tablet

I am a linux user and I am a total newbie when it comes to input devices and drivers. I have recently bought xp-pen star 06 tablet tablet specifactions the tablet works poorly with evdev. The mouse moves with the tablet but also poorly, the pen nip…
Arsen
  • 51
5
votes
1 answer

Who reads `/etc/default/keyboard`?

And I do not care about the console here (I care about X11)... I see in /var/log/Xorg.0.log that my X-server picks up xkb_rules evdev from somewhere I can’t find. It also seems to take xkb_model and xkb_layout from the config file…
Robert Siemer
  • 2,536
4
votes
1 answer

USB Endoscope not recognised as a MTP Device. How to Correct?

I have a newly acquired USB Endoscope (aka 'snake camera') which works a treat on a friend's Apple Mac, but does not work on my Dell laptop running 14.04. The Endoscope is recognised as a device: $ ls -l /dev/video* crw-rw----+ 1 root video 81, 0…
PeckettChap
  • 39
  • 6
3
votes
3 answers

How can I get absolute touchpad coordinates

From what I understand, earlier versions of the Synaptic driver in Ubuntu had an 'absolute mode' for the trackpad which allowed the user to access absolute coordinates as well as relative coordinates. However, Synaptic decided to remove it(not sure…
n0pe
  • 121
2
votes
1 answer

Touch Screen Clicks Repeatedly on Press - Can't Drag

Ubuntu 12.04 LTS recognizes my touchscreen correctly. Tapping the screen sends the correct ABS coords and BTN_TOUCH. The problem is that BTN_TOUCH is set to a 1, then immediately set to a 0 even though my finger never leaves the screen. This means…
zerox1212
  • 21
2
votes
1 answer

Inconsistent mouse X events for Acer T231H multitouch monitor

Looks like a bug OK, I believe this is a bug in the xorg evdev driver, but as ubuntu-bug for precise so kindly asked me to work this trough the support channels, I first went ant reported this here. In the meantime, I've upgraded to quantal and…
MvG
  • 1,536
2
votes
2 answers

Unable to remap `btn_middle` to libinput using hwdb

I am using a Logitech Trackman Marble Trackball on Ubuntu 22.04, Gnome Shell 42, Wayland. I wish to simulate a middle mouse click with one of the extra side buttons, but it seems I am able to synthesize any type of button except the middle…
Ian Mackinnon
  • 1,148
2
votes
1 answer

Dell Active Pen PN350M not working properly

I'm running Ubuntu 20.04 on a Dell Inspiron 15 7591 2-in-1. The laptop comes with a stylus, the Dell PN350M Active Pen, which unfortunately does not work properly under my system. I found out that the pen uses Microsoft Pen Protocol to pair with my…
Parth Shah
  • 121
1
vote
1 answer

Random freezes in Ubuntu 16.04 due to mouse and keyboard devices being ignored

I have the same problem as described here but not enough reputation to comment or answer. Also I've read related questions / solutions. I'm experiencing random freezes unrelated to a specific activity - sometimes just typing in a terminal. Mouse and…
Emanuel George Hategan
  • 140
1
vote
2 answers

Monitor is detecting as Touchpad instead of TouchScreen

When i upgraded from SUSE to Ubuntu 14.04 LTS, the touchscreen monitor is detecting as TOUCHPAD instead of TOUCHSCREEN. It is using the ELO drivers for touch screen Functionality. I debugged this issue, in the Xorg Log the type is shown as a "TOUCH…
Sunny
  • 33
1
2