I'm a novice at Linux/Ubuntu. I installed Kubuntu and have configured the Power Management and Display And Monitor settings appropriately. I've installed Caffeine, and have tried multiple times to prevent the screen from going blank. I've followed other articles and tried disabling the Screen Blanking feature. I've also disabled all the power saving options.

Issue: After 31 seconds of not moving the mouse, even if multimedia - including web-based multimedia - is still playing, the screen goes blank. Please give me very specific instructions when referring to the Terminal commands and their respective directories.

Thank you in advance.

Troubleshooting performed: mv ~/.kde ~/.kde.old mv ~/.cache ~/.cache.old mv ~/.local ~/.local.old mv ~/.config ~/.config.old shutdown -r now Disabled Hardware Acceleration in Firefox and Chromium rm ~/.local/share/kscreen sudo killall sddm Tried New Sessions

xset -q revealed the following: xset -q Keyboard Control:
auto repeat: on key click percent: 0 LED mask: 00000000
XKB indicators:
00: Caps Lock: off 01: Num Lock: off 02: Scroll Lock: off 03: Compose: off 04: Kana: off 05: Sleep: off 06: Suspend: off 07: Mute: off 08: Misc: off 09: Mail: off 10: Charging: off 11: Shift Lock: off 12: Group 2: off 13: Mouse Keys: off
auto repeat delay: 600 repeat rate: 25
auto repeating keys: 00ffffffdffffbbf
bell percent: 50 bell pitch: 400 bell duration: 100
Pointer Control:
acceleration: 20/10 threshold: 4
Screen Saver:
prefer blanking: yes allow exposures: yes
timeout: 0 cycle: 600
default colormap: 0x20 BlackPixel: 0x0 WhitePixel: 0xffffff
Font Path:
DPMS (Energy Star):
Standby: 0 Suspend: 0 Off: 0
DPMS is Disabled

Some Specs: Kubuntu 16.10 KDE Plasma Version 5.7.5 KDE Frameworks Version 5.26.0 Qt Version 5.6.1 Kernel Version 4.8.0-27-generic OS Type 64-bit Dell Latitude E5410

  • grep -iA2 vga 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) Subsystem: Dell Core Processor Integrated Graphics Controller Kernel driver in use: i915 – Buddy Holly Nov 14 '16 at 23:59
  • xset -dpms xset s noblank – Buddy Holly Nov 15 '16 at 0:09

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