I have a Lenovo Thinkpad T60 running 12.04.4 LTS, Precise Pangolin; the desktop is KDE. Starting today, the display goes blank after 33 seconds of inactivity. Clicking or even moving the mouse, or pressing a key, resets the 33-second timer.
I have checked the following settings:
- System Settings / Screen Saver Settings (screenshot): These are turned off. Turning them on and setting an explicit timeout of 9 minutes did not change the behavior.
- System Settings / Energy Saving Settings (screenshot): These are turned off. Turning on "Dim Display and setting to 10 minutes did not change the behavior.
X server settings (
xset) : The
xset qcommand reported:
Screen Saver: prefer blanking: yes allow exposures: yes timeout: 0 cycle: 600
timeout: 0indicates that the X screen saver feature is disabled. Explicitly disabling it with
xset s offdid not change the behavior.
How do I stop this annoying screen blanking?