Hi,got a problem with the monitor on the thinkpad ,its gone totally dark ,you can see the display if you look rally close in bright lit room .
I can get it to display when plugged into my computer monitor ,but only when in safe mode.when i boot up with it connected to my monitor it shows the win XP starting up but goes black when the winxp welcome screen comes up and stays black when winxp loads fully ,it has a Active matrix lcd monitor ,i searched and read but don't totally under stand ,dos anyone know if this type has a florcesent light source or does the definition of active matrix mean it creates its own light , and i have to replace the monitor ,and not just a light stick thingie,or could it be the intel video display chipset ,any insite would help ,Thanks

Dani AI

Generated

Practical diagnostic summary for IBM ThinkPad R31 display issues (notes for , with thanks to and relevant to ).

Active‑matrix (TFT) describes how pixels are driven, not how they light up. The panel needs a separate backlight (R31‑era machines normally use a CCFL lamp driven by an inverter). A clearly visible but very dim image under a bright lamp points at backlight/inverter or its cable; an image that appears during POST/boot but disappears when Windows starts usually points at drivers or display mode.

A short, ordered diagnostic sequence:

  1. Observe POST/BIOS: if POST shows a normally lit screen, the hardware backlight/power is likely OK and the problem is software/video settings; if POST is dim or blank (but a faint image appears with a flashlight) suspect inverter/CCFL or cable.
  2. Boot options: use F8 (Windows XP) -> "Enable VGA Mode" or boot Safe Mode. If that restores a normal image, uninstall/roll back the display driver in Device Manager, reboot, then install an official Intel/IBM driver at a conservative resolution/60Hz.
  3. External tests: attach an external CRT/VGA monitor and cycle outputs with the ThinkPad display toggle (Fn+F7 on most ThinkPads) to force LCD/CRT/both. Trying a Linux live CD or BIOS-only test helps separate OS/driver issues from hardware faults.
  4. Physical checks: hinge/cable damage commonly breaks the thin backlight/inverter wiring. If comfortable with disassembly, inspect/reseat the LCD cable behind the bezel; otherwise document the symptom and hand to a technician.

Repair notes and cautions: inverter boards and lamps are frequently replaceable and usually cheaper than full panels, but inverter work involves high voltages — avoid DIY unless experienced. If the symptom is application‑specific blinking (as reports later), that strongly favors driver/acceleration or power‑management settings over hardware. Document which test changed behavior; that log makes diagnostics or a repair shop visit far more effective.

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no ideas ,or info for me !??????????????????

Hi,got a problem with the monitor on the thinkpad ,its gone totally dark ,you can see the display if you look rally close in bright lit room .
I can get it to display when plugged into my computer monitor ,but only when in safe mode.when i boot up with it connected to my monitor it shows the win XP starting up but goes black when the winxp welcome screen comes up and stays black when winxp loads fully ,it has a Active matrix lcd monitor ,i searched and read but don't totally under stand ,dos anyone know if this type has a florcesent light source or does the definition of active matrix mean it creates its own light , and i have to replace the monitor ,and not just a light stick thingie,or could it be the intel video display chipset ,any insite would help ,Thanks

Excuse me asking this but is the machine running on a P2 or P3 processor.

The reason behind my asking this is that I too have an IBM thinkpad machine but mine is a P2 also running win xp (pro). about a month ago i had a very similar problem whereby i went to turn my machine on and all the lights etc came on and it booted ok. the only problem was a dark screen. At first i thought that the backlight had gone and shone a torch at the screen. there was definately an image there. I also hooked it upto an external monitor where it worked up until the same stage as yours did. however after turning the machine off and leaving it on charge all day i came back to it later in the day and found that it started up, screen and everything and there appeared to be nothing wrong with it.

What i am trying to say is have you not used your laptop for a while. reason being that a laptop screen is fairly much like a mobile phone screen, whereby in the sense that if there is not enough power in the battery to power the backlight in the screen it will not come on. you may get some life out the rest of it but because the screen is the more power consuming item you wont get much out of it.

best thing to do is give it a good 6-7 hours on the charger like i did and then see what happens. if you still fail to have any joy then best to have it looked at. I wouldn't personally rule out the chipset, but judging by the symptoms you describe the active matrix (fluro) backlight may have gone. if this is the case get a new laptop as a new active matrix will cost you more then the price of a new laptop. when mine went i spoke to the PC clinic at my local PC world store and they said it would have to be sent away and the cost would be about £400. is it really worth it when you can get a new one for £399.

hope this is of help to you. let me know what happens.:cool:

thanks for the responce ,first its not mine ,so im not sure how oftern its used ,but i think daily,second its a Celeron 1.1 m,

thanks for the responce ,first its not mine ,so im not sure how oftern its used ,but i think daily,second its a Celeron 1.1 m,

no problem, just noticed a couple of spelling errors in 'response' and 'often':)

no problem, just noticed a couple of spelling errors in 'response' and 'often':)

You must be an English Teacher ,who like computers !:)
Actually ,I'm not the worlds best speller,Its because I also have dyslexia.and 47 yrs ago when I started school they really didn't know how to or didn't bother helping people like Me. :)

You must be an English Teacher ,who like computers !:)
Actually ,I'm not the worlds best speller,Its because I also have dyslexia.and 47 yrs ago when I started school they really didn't know how to or didn't bother helping people like Me. :)

uh... sorry if i caused offence there. slapping myself :o . no im not an english teacher worse luck. they get paid better then what i do. In fact im a security officer with a flair for taking apart and rebuilding the clients computers (only when they go down though). there's no IT support where i work.:)

speaking of which did you try what i said with the laptop, about plugging it in on charge and just leaving it. any results? :cool:

uh... sorry if i caused offence there. slapping myself :o . no im not an english teacher worse luck. they get paid better then what i do. In fact im a security officer with a flair for taking apart and rebuilding the clients computers (only when they go down though). there's no IT support where i work.:)

speaking of which did you try what i said with the laptop, about plugging it in on charge and just leaving it. any results? :cool:

Ha,Thats ok, I was only kidding about part of it [its only been 46 yrs ]
I gave the laptop back to it owner ,so I don't know if that worked ,thanks for you help .

Ha,Thats ok, I was only kidding about part of it [its only been 46 yrs ]
I gave the laptop back to it owner ,so I don't know if that worked ,thanks for you help .

thats ok, may be something to bear in mind if you get another one like that though.

take care.:)

thats ok, may be something to bear in mind if you get another one like that though.

take care.:)

Will do ,its stored in memory bank 01,in address FFFFFFForget :)

Will do ,its stored in memory bank 01,in address FFFFFFForget :)

hehehe :D i like that 1. sounds like me most of the time.

halu... i'm juz going to ask if you also know about this. whenever i use microsoft office, the screen starts blinking... itz causing me a headache. itz ibm thinkpad laptop

halu... i'm juz going to ask if you also know about this. whenever i use microsoft office, the screen starts blinking... itz causing me a headache. itz ibm thinkpad laptop

hello,please don't use chat speak ,I don't use chat programs ,and don't like reading chat shorthand ,thanks.
Ok ,so the display only blinks when you use microsoft office ,doesn't blink any other time .

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