[Bug 217717] New: Mouse cursor disappears when changing backlight control

[Marco Poletti]

https://bugs.kde.org/show_bug.cgi?id=217717

           Summary: Mouse cursor disappears when changing backlight
                    control
           Product: kde
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: poletti.marco at gmail.com


Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

When you change the screen BACKLIGHT_CONTROL, if the mouse cursor is visible it
disappears. Then you have to do something that would hide the cursor (like
typing in konsole) and then move the mouse, in order to make the cursor visible
again.


Steps to reproduce:
0. Use a laptop that allows changing the backlight control (see the output of
"xrandr --prop") and make sure the screen named "LVDS" can be set to "native"
brightness control. Otherwise change the script to match your screen and a
supported brightness control for that screen.
1. Create a file script.sh with content:

#!/bin/bash

xrandr --output LVDS --set BACKLIGHT_CONTROL native

2. Make script.sh executable
3. Browse to the folder containing script.sh and open it with the *mouse* (if
you open it in konsole, you won't trigger the bug because the cursor is hidden
while you type).
4. Open konsole, move the (invisible) cursor in the typing area and type
something.
5. Move the mouse


Current behavior:
No mouse cursor after step 3. It becomes visible again after step 5.

Expected behavior:
Mouse cursor is shown after step 3.

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