T61 QXGA Frankenpad LCD (or nvidia?) issue.

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mdancer · #1 Post by **mdancer** » Mon Feb 02, 2015 7:34 pm

Recently my X9100 Frankenpad with QXGA screen has started to get blank after some time. It looks like overheating of something. After cold start I can work 5-10 minutes before screen goes blank. If you I send laptop to suspend or change from xorg screen to text console in linux it returns to life for awhile. However after a few iterations screen goes blank after 5-10 seconds and I have to switch it off for some time.

I ordered new(used) inverter. However, not sure what could be a problem. This is nvidia board and I'm wondering if it could be nvidia bug? I also noticed that vga output stopped to show green color i.e. external screen is violent instead of white:). Also I'd used video-undervolted bios for X9100. I've switched to bios with higher video voltages however it didn't helped.

Could it be related with X9100 cpu? It is the latest lower power stepping. I haven't done pinmod for the 266 fsb, just overclocked occasionally, so the cpu works at 2.4 GHz usually. Unfortunately I don't have any other CPU for a test.

Any help is appreciated.

ajkula66 · #2 Post by **ajkula66** » Mon Feb 02, 2015 7:44 pm

Hmmm...my money would be on GPU failing as opposed to the screen.

Do you have any other newer (60-series or later) ThinkPad that you could test the LCD assembly on?

mdancer · #3 Post by **mdancer** » Mon Feb 02, 2015 7:53 pm

ajkula66 wrote:Do you have any other newer (60-series or later) ThinkPad that you could test the LCD assembly on?

No, but I think it would be my next move to buy an additional T60 if inverter will not help. Probably I should have started with this.

ajkula66 · #4 Post by **ajkula66** » Mon Feb 02, 2015 7:55 pm

mdancer wrote:No, but I think it would be my next move to buy an additional T60 if inverter doesn't help. Probably I should have started whit this.

Didn't you have an X61 of some kind or I'm mixing stuff up?

mdancer · #5 Post by **mdancer** » Mon Feb 02, 2015 7:57 pm

ajkula66 wrote:Didn't you have an X61 of some kind or I'm mixing stuff up?

Yes I have a X61s and X61 Tablet. Could LCD assembly be tested on them?

ajkula66 · #6 Post by **ajkula66** » Mon Feb 02, 2015 8:00 pm

mdancer wrote:Yes I have a X61s and X61 Tablet. Could LCD assembly be tested on them?

I'm fairly certain that the LCD connection on the planar is the same so I'd say "yes".

mdancer · #7 Post by **mdancer** » Mon Feb 02, 2015 8:05 pm

Thank you ajkula66, I'll try it now carefully:)

ajkula66 · #8 Post by **ajkula66** » Mon Feb 02, 2015 8:07 pm

I'd leave the tablet alone and use X61s as a testbed, but those are your toys...

Good luck.

mdancer · #9 Post by **mdancer** » Mon Feb 02, 2015 9:03 pm

Unforchanatly X61s has much smaller LCD connector than T60, seems the same as in X200 model. So I'll wait for the inverter first.

ajkula66 · #10 Post by **ajkula66** » Mon Feb 02, 2015 9:13 pm

My apologies for misleading you.

Good luck.

mdancer · #11 Post by **mdancer** » Fri Feb 06, 2015 5:24 pm

It seems, that I have CCFL backlight issue. I've change an inverter and LCD started to work much longer until a black-out. Moreover there is one member of the forum who had exactly the same issue and change of back-light helped him.

T61 QXGA Frankenpad LCD (or nvidia?) issue.

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