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i7 x220t - LCD Backlight works but no display

X200/X201/X220 (including equivalent tablet models) and X300/X301 Series
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TheForgottenKing
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i7 x220t - LCD Backlight works but no display

#1 Post by TheForgottenKing » Fri Jun 08, 2018 1:58 pm

Bought it off ebay, going to nitrocaster mod it anyway but would be nice to get functionality first

Checked
-External Display works
-BIOS settings reset
-Backlight works
-Backlight control works
-Boots into windows fine
-In windows, display detected but black, windows open on internal display
-Different LCD and cable
-F1, F2, F6 fuses continuous
-Displayport dock works
-Displayport motherboard works

What fuses or other things should I check?
theforgottenki.ng
P1 Gen 5: i9-12900H - RTX A5500 - 64GB DDR5 - 2TB NVMe
W701ds: i7-940XM - 32GB DDR3 - 256GB SSD + 1TB HDD - FX 2800M - 17" 1920x1200 + 10" 768x1280 - Wacom - Dock
PC XT: 5160 + 5151 + 5153 + F XT - Intel 8088 - 640 KB - 2GB CF
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RealBlackStuff
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Location: Loch Garman, Éire

Re: i7 x220t - LCD Backlight works but no display

#2 Post by RealBlackStuff » Fri Jun 08, 2018 2:45 pm

Return it for a refund and buy a regular X220/X230!
nitrocaster's mod is NOT for X220T or X230T tablet, only for non-tablet machines.
Lovely day for a Guinness! (The Real Black Stuff)
Lenovo: X240, X250, T440p, T480, M900 Tiny.

PS: the old Boardroom website is still available on the Wayback Machine.
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TheForgottenKing
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Posts: 514
Joined: Fri Apr 13, 2018 11:41 am
Location: Chicago, IL

Re: i7 x220t - LCD Backlight works but no display

#3 Post by TheForgottenKing » Fri Jun 08, 2018 9:24 pm

I know it is not but I plan to try, the mod fits with some small mods, I knew going into getting this one it was damaged but hopefully it can be fixed.
theforgottenki.ng
P1 Gen 5: i9-12900H - RTX A5500 - 64GB DDR5 - 2TB NVMe
W701ds: i7-940XM - 32GB DDR3 - 256GB SSD + 1TB HDD - FX 2800M - 17" 1920x1200 + 10" 768x1280 - Wacom - Dock
PC XT: 5160 + 5151 + 5153 + F XT - Intel 8088 - 640 KB - 2GB CF
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RealBlackStuff
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Posts: 23824
Joined: Mon Sep 18, 2006 5:17 am
Location: Loch Garman, Éire

Re: i7 x220t - LCD Backlight works but no display

#4 Post by RealBlackStuff » Sat Jun 09, 2018 5:11 am

It being a tablet, I'd check the LCD-cable.
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TheForgottenKing
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Posts: 514
Joined: Fri Apr 13, 2018 11:41 am
Location: Chicago, IL

Re: i7 x220t - LCD Backlight works but no display

#5 Post by TheForgottenKing » Sat Jun 09, 2018 9:57 am

Checked it and display, no dice
theforgottenki.ng
P1 Gen 5: i9-12900H - RTX A5500 - 64GB DDR5 - 2TB NVMe
W701ds: i7-940XM - 32GB DDR3 - 256GB SSD + 1TB HDD - FX 2800M - 17" 1920x1200 + 10" 768x1280 - Wacom - Dock
PC XT: 5160 + 5151 + 5153 + F XT - Intel 8088 - 640 KB - 2GB CF
Top
RealBlackStuff
Admin Emeritus
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Posts: 23824
Joined: Mon Sep 18, 2006 5:17 am
Location: Loch Garman, Éire

Re: i7 x220t - LCD Backlight works but no display

#6 Post by RealBlackStuff » Sat Jun 09, 2018 10:27 am

Try the LCD on another working X220/X220t with that machine's LCD-cable.
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