10-08-2011 10:40 AM
I have a problem on my T60. I have used the VGA port very little, and just started to connect it to a 17" Dell LCD at work. After two days, it just suddenly decided not to project, but it still can detect an attached external monitor. The external monitor just says entering power save mode. Tried every software solution I can think, including replacing OS, video driver, wireless driver, running all kinds of lenovo tests. What's going on?
Is it something I can repair on the motherboard? Or is it not that bad? Any advice would be appreciated.
Solved! Go to Solution.
10-08-2011 03:59 PM - edited 10-08-2011 03:59 PM
Some of the T60 do have a higher frequency of VGA failure.
Did you try the laptop with other external LCD?
Also did you try a new VGA cable?
10-08-2011 10:39 PM
Its sad to hear its a more common issue than I thought. Yes, I have tried it with three other external LCDs, they work with other devices but not with my laptop. I also changed the VGA cable with a new one.
How can I solve this, excluding a new motherboard because everything else is working great. I have a ATI x1300 video card on board, and the T60 model is 2008BG4
10-09-2011 12:18 AM
10-09-2011 03:31 AM
I just bought two of the docking stations for less then $30 shipped, and they even have keys. You might even find them cheaper, there are lots of this stuff being returned from corporate customers that end up on sites like ebay.
10-09-2011 09:17 PM
07-17-2014 09:41 AM
I solve the problem, maybe it will be helpfull for smoebody. I had the same situation - external VGA port die after connecting external monitor.
Cause of that is broken demultiplexer (swiching circuit between VGA port in laptop and docking station) in RGB line. Here is electrical schematic of R60:
The broken integrated circuit is NC7SB3157 (6-pin SMD demultiplexer) marked on schematic as U14, U40, U50 (page 72). There are 3 of them for each color line RGB. In my case there was a short circuit between pin 1 (output for VGA port in lapotop) and ground. The solution is to replace it (all 3 IC) or remove them and short connect pin 4 with pin 1 (then you will be not allow to use port in docking station anymore).
WARNING to get to this IC you need disassembly all computer and you need precicion soldering for SMD circuits.
sorry for my english
best regards - pozdro sześćset