Bug 217717

Summary: Mouse cursor disappears when changing backlight control
Product: [I don't know] kde Reporter: Marco Poletti <poletti.marco>
Component: generalAssignee: Unassigned bugs mailing-list <unassigned-bugs>
Status: RESOLVED UPSTREAM    
Severity: normal    
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Marco Poletti 2009-12-07 15:28:22 UTC
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.
Comment 1 Christoph Feck 2009-12-07 21:38:51 UTC
This seems to be a bug in the X11 server, see also https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/492782