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Screen goes dark when awake from standby

T60/T61 series specific matters only
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StevenD
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Joined: Thu Jun 07, 2007 10:18 pm
Location: Omaha, NE

Screen goes dark when awake from standby

#1 Post by StevenD » Mon Jul 20, 2020 9:59 am

Hi, all,
New problem in the last month. When my T60p awakens from standby, sometimes the screen will go dark, starting about 3-4 seconds after it awakens. To fix it, I have to put the laptop into hibernation with Fn-F12, and then wake it up from hibernation, and the problem is then almost always gone until I standby again.
Doesn't happen *every* time I awake from standby, but a good 60%. I tried making sure the external monitor port is off, checked battery settings (it happens plugged-in or on battery), checked msconfig to see if anything strange was running, I restored from an old (but good) system restoration point to see if that might help, basically everything I or Google could think of.
I'm about ready to change settings so closing the lid hibernates instead of stands-by -- wouldn't be the end of the world, but what happened, and what can I try? Thanks!

dr_st
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Re: Screen goes dark when awake from standby

#2 Post by dr_st » Mon Jul 20, 2020 1:10 pm

Lid close sensor going awry? Doesn't really explain why it only happens following standby and not hibernate / full power down, but who knows?
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad, A21m 2628-GXU

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