stefan_bahrens
September 17th, 2016, 07:00 PM
I am completely at a loss. On a new installation of Ubuntu 16.04 LTS 64bit my laptop screen has started to go black every 15 seconds. If I move the mouse or click then the display returns (I do not have to log in). Because this happens every 15 seconds the laptop is essentially unusable. It looks like screensaver behaviour but it could be anything.
If I type " sudo lshw -C video | grep product: " I get -
product: Broadwell-U Integrated Graphics
product: GM108M [GeForce 940M]
If I type " sudo lshw -C video " I get -
*-display
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:44 memory:f0000000-f0ffffff memory:e0000000-efffffff ioport:4000(size=64)
*-display UNCLAIMED
description: 3D controller
product: GM108M [GeForce 940M]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:08:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: memory:f1000000-f1ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:3000(size=128)
If I type "xset s off" this seems to have no effect.
If I type " gnome screensaver " I get -
** (gnome-screensaver:5014): WARNING **: screensaver already running in this session
If I type " xscreensaver " I get -
The program 'xscreensaver' is currently not installed. You can install it by typing: sudo apt install xscreensaver
If I type " xset -q " I get -
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: 500 repeat rate: 33 auto repeating keys: 00ffffffdffffbbf fadfffefffedffff 9fffffffffffffff fff7ffffffffffff bell percent: 50 bell pitch: 400 bell duration: 100 Pointer Control:
acceleration: 5/1 threshold: 5
Screen Saver:
prefer blanking: yes allow exposures: yes timeout: 0 cycle: 0 Colors:
default colormap: 0x22 BlackPixel: 0x0 WhitePixel: 0xffffff
Font Path:
/usr/share/fonts/X11/misc,/usr/share/fonts/X11/Type1,built-ins
DPMS (Energy Star): Standby: 0 Suspend: 0 Off: 0
DPMS is Enabled Monitor is On
Needless to stay if I go to Settings > System Settings... and make changes to "Brightness and Lock", "Power" or "Screen Display" this has no effect on the problem. I don't know what to do. Any help would be appreciated.
If I type " sudo lshw -C video | grep product: " I get -
product: Broadwell-U Integrated Graphics
product: GM108M [GeForce 940M]
If I type " sudo lshw -C video " I get -
*-display
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:44 memory:f0000000-f0ffffff memory:e0000000-efffffff ioport:4000(size=64)
*-display UNCLAIMED
description: 3D controller
product: GM108M [GeForce 940M]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:08:00.0
version: a2
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: memory:f1000000-f1ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:3000(size=128)
If I type "xset s off" this seems to have no effect.
If I type " gnome screensaver " I get -
** (gnome-screensaver:5014): WARNING **: screensaver already running in this session
If I type " xscreensaver " I get -
The program 'xscreensaver' is currently not installed. You can install it by typing: sudo apt install xscreensaver
If I type " xset -q " I get -
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: 500 repeat rate: 33 auto repeating keys: 00ffffffdffffbbf fadfffefffedffff 9fffffffffffffff fff7ffffffffffff bell percent: 50 bell pitch: 400 bell duration: 100 Pointer Control:
acceleration: 5/1 threshold: 5
Screen Saver:
prefer blanking: yes allow exposures: yes timeout: 0 cycle: 0 Colors:
default colormap: 0x22 BlackPixel: 0x0 WhitePixel: 0xffffff
Font Path:
/usr/share/fonts/X11/misc,/usr/share/fonts/X11/Type1,built-ins
DPMS (Energy Star): Standby: 0 Suspend: 0 Off: 0
DPMS is Enabled Monitor is On
Needless to stay if I go to Settings > System Settings... and make changes to "Brightness and Lock", "Power" or "Screen Display" this has no effect on the problem. I don't know what to do. Any help would be appreciated.