My laptop screen never fully powers off (at least the backlights do not). When I shut down the screen goes blank but the back lights remain lit.
I tried shutting down on Windows 8, Linux, etc. This is a year old problem but just started happening one day -- no notable changes to the hardware or software. No recent updates etc.
The only way to get the backlights to turn off is to pull the power cable. I have been doing it this way for over a year. It did not matter if the battery was present or charged. I tried powering down, removing the battery and power cable, and then plugging the power cable back in (without the battery present) and the back lights turn back on immediately (even before booting). Only when the power cable is plugged in did it have this issue. I have tried removing the battery and cable and holding the power button to drain excess energy (don't know if that would even have such effect), but it did not fix it.
Now the last two nights, it happened when the adapter was unplugged, with just the battery present, so now I have to remove the battery now too which is way too inconvenient to ignore.
Any ideas on what may be causing this or how to fix it? I did try tinkering with the bios ACPI settings awhile back but it didn't make any difference.
It's a thinkpad x120e.
I tried shutting down on Windows 8, Linux, etc. This is a year old problem but just started happening one day -- no notable changes to the hardware or software. No recent updates etc.
The only way to get the backlights to turn off is to pull the power cable. I have been doing it this way for over a year. It did not matter if the battery was present or charged. I tried powering down, removing the battery and power cable, and then plugging the power cable back in (without the battery present) and the back lights turn back on immediately (even before booting). Only when the power cable is plugged in did it have this issue. I have tried removing the battery and cable and holding the power button to drain excess energy (don't know if that would even have such effect), but it did not fix it.
Now the last two nights, it happened when the adapter was unplugged, with just the battery present, so now I have to remove the battery now too which is way too inconvenient to ignore.
Any ideas on what may be causing this or how to fix it? I did try tinkering with the bios ACPI settings awhile back but it didn't make any difference.
It's a thinkpad x120e.