Public bug reported:
Binary package hint: libxi6
The "xinput" command-line tool is used here to access the libXi API. It
fails to switch the X core pointer device, eventually using the
"XChangePointerDevice" function. For that purpose, I have attached two
two mice devices which are correctly detected and reported:
$ xinput --list --short
"Virtual core keyboard" id=0 [XKeyboard]
"Virtual core pointer" id=1 [XPointer]
"mouse-1" id=2 [XExtensionPointer]
"mouse-2" id=3 [XExtensionPointer]
"keyboard" id=4 [XExtensionKeyboard]
When I try to change the core pointer, first quoting "mouse-1", then
"mouse-2" (one of these must be an extension device!):
$ xinput --set-pointer "mouse-1"
$ xinput --set-pointer "mouse-2"
Both of these calls fail with the following ERROR:
X Error of failed request: BadDevice, invalid or uninitialized input device
Major opcode of failed request: 149 (XInputExtension)
Minor opcode of failed request: 12 (X_ChangePointerDevice)
Serial number of failed request: 12
Current serial number in output stream: 12
---
# lsb_release -rd
Description: Ubuntu 8.04
Release: 8.04
# apt-cache policy libxi6
libxi6:
Installed: 2:1.1.3-1
Candidate: 2:1.1.3-1
Version table:
*** 2:1.1.3-1 0
** Affects: libxi (Ubuntu)
Importance: Undecided
Status: New
--
XChangePointerDevice fails with Error
https://bugs.launchpad.net/bugs/241024
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