- Jul 24, 2013
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Okay, I have a brain teaser for you!
I'm running a Windows 10 Pro 64-bit Dell Latitude E6430 laptop on an Intel i7-3740QM. Over the past couple days I haven't been able to close my lid without causing my screen to permanently black out. However, the screen is not off and my computer is still running; I know because it is still lit (just black) and I can see and move the cursor (and only the cursor). I see the arrow change to the clicking finger when I hover over clickable areas like links. I can also still shutdown the computer via command prompt.
I have my system settings to "Do Nothing" when I close the lid while both plugged in and unplugged; this is when the problem occurs upon closing the lid. When I turn off the monitor manually I can get it back immediately, so the issue is not from that function. I noticed that this problem occurs when I close the lid either all the way or almost all the way, which is odd because the computer isn't supposed to register ANY changes when I close the lid, it's set specifically not to.
Here's the kicker, when I set the computer to go to sleep upon closing the lid, it does so and then I'm able to open the lid and wake it as normal. The issue is only when I set the computer to "Do Nothing" upon closing the lid. Also, when the issue occurs and I manually set the computer to sleep during the blackout, it does not fix the issue. Instead, the computer goes to sleep, then upon waking the monitor doesn't work it all; no cursor and no backlight anymore, though according to my indicator lights the computer does seem to be waking up. I can only fix it by shutting down or restarting the PC. So putting it to sleep then waking it while it's experiencing the problem makes it worse.
To add to the mystery, I'm positive it's not Windows itself because this problem occurs even when I'm live booting into Linux Mint 16. This causes me to suspect a hardware issue, but I'm not completely sure since it's fixed when I set the computer to sleep upon closing the lid. Though Windows does seem to be affected more because now Windows sometimes boots directly into having a blackened display. When I boot into Linux this never happens, though Linux still experiences this when I close and open the lid.
I'm scratching my head on this one. Any ideas?
I'm running a Windows 10 Pro 64-bit Dell Latitude E6430 laptop on an Intel i7-3740QM. Over the past couple days I haven't been able to close my lid without causing my screen to permanently black out. However, the screen is not off and my computer is still running; I know because it is still lit (just black) and I can see and move the cursor (and only the cursor). I see the arrow change to the clicking finger when I hover over clickable areas like links. I can also still shutdown the computer via command prompt.
I have my system settings to "Do Nothing" when I close the lid while both plugged in and unplugged; this is when the problem occurs upon closing the lid. When I turn off the monitor manually I can get it back immediately, so the issue is not from that function. I noticed that this problem occurs when I close the lid either all the way or almost all the way, which is odd because the computer isn't supposed to register ANY changes when I close the lid, it's set specifically not to.
Here's the kicker, when I set the computer to go to sleep upon closing the lid, it does so and then I'm able to open the lid and wake it as normal. The issue is only when I set the computer to "Do Nothing" upon closing the lid. Also, when the issue occurs and I manually set the computer to sleep during the blackout, it does not fix the issue. Instead, the computer goes to sleep, then upon waking the monitor doesn't work it all; no cursor and no backlight anymore, though according to my indicator lights the computer does seem to be waking up. I can only fix it by shutting down or restarting the PC. So putting it to sleep then waking it while it's experiencing the problem makes it worse.
To add to the mystery, I'm positive it's not Windows itself because this problem occurs even when I'm live booting into Linux Mint 16. This causes me to suspect a hardware issue, but I'm not completely sure since it's fixed when I set the computer to sleep upon closing the lid. Though Windows does seem to be affected more because now Windows sometimes boots directly into having a blackened display. When I boot into Linux this never happens, though Linux still experiences this when I close and open the lid.
I'm scratching my head on this one. Any ideas?
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