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Author Topic: [SOLVED]Black screen after login  (Read 1000 times)

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Offline stew1411

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[SOLVED]Black screen after login
« on: August 19, 2018, 10:30:02 am »
Hello all. 

I have a problem that I can't seem to figure out. I have a ThinkPad x201 with P8 installed. Alot of the time when I'm done using the laptop for a bit I'll just shut the lid and put it to sleep. When I open it the lockscreen will ask for my fingerprint and all is good. But sometimes, maybe once a week, after I swipe my fingerprint the desktop will be a black screen. If I hit super + L it'll go right back to the lockscreen and the display works again. Unlock again and it goes back black. The only solution I can do is Ctrl+Alt+T and type reboot. The laptop then reboots. So the based on that I can tell the desktop is loaded and unlocked. What could be causing this? Is there a command I can type to restart the desktop environment or something similar?
« Last Edit: September 01, 2018, 06:23:00 pm by stew1411 »

Offline PCNetSpec

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Re: Black screen after login
« Reply #1 on: August 19, 2018, 10:45:11 am »
What happens if instead of typing "reboot", you instead type
Code: [Select]
sudo service lightdm restart
WARNING: You are logged into reality as 'root' .. logging in as 'insane' is the only safe option.

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Offline stew1411

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Re: Black screen after login
« Reply #2 on: August 19, 2018, 07:46:26 pm »
I won't know until it happens again. It'll probably be a few days. When it happens I'll report back.

Offline stew1411

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Re: Black screen after login
« Reply #3 on: August 25, 2018, 10:12:59 am »
So it did it again and I tried to restart the lightdm service. Nothing. I swiped my fingerprint at the lockscreen, it went to a black screen. I opened up a terminal with Ctrl+Alt+T and typed the restart command. Fingerprint sensor lit up so I could swipe it again, and nothing. I typed the command three times and it never did anything. So once again I just typed reboot and the machine did a quick reset. I honestly have no idea why it does this.

Offline PCNetSpec

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Re: Black screen after login
« Reply #4 on: August 25, 2018, 11:20:48 am »
I realise this isn't a "fix", but have you considered moving to Peppermint 9

Maybe set up as a dual boot as a test ?
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Offline stew1411

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Re: Black screen after login
« Reply #5 on: August 26, 2018, 04:42:27 pm »
Is there an easy way to upgrade without having to reconfigure my whole machine? The only thing I have about distro upgrades is having to download all my programs again and my files.

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Offline spence

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Re: Black screen after login
« Reply #6 on: August 26, 2018, 06:35:29 pm »
One of the ways to make the upgrade process easier is to create a DATA //not a home/// partition... @Slim.Fatz posted a tutorial about  doing so here...
 https://forum.peppermintos.com/index.php/topic,1835.0.html
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Offline stew1411

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Re: Black screen after login
« Reply #7 on: September 01, 2018, 05:04:00 pm »
What happens if instead of typing "reboot", you instead type
Code: [Select]
sudo service lightdm restart
That actually worked. It happened again and I tried. I can only assume since I can't see what's on screen that last time I mistyped it. But it took me back to the login screen and then the desktop worked fine.

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