Hello,
I have a display issue which looks like shown on the attached pictures:
Description: after power-up backlight illuminates itself, the display is black as if everything gets fine. However no bios message is displayed. The display remains black for a few seconds, then starts slowly to get brighter so that the initial perfectly black picture slowly fades out to become some gray color (first attached picture). Some pixels appear green like if they were hot pixels. After lets say 2 minutes the display stabilizes itself as on the second picture (the left edge is blue).
It seems that something is wrong with the LVDS signals. The display works perfectly when attached to another computer.
I first thought it was an LVDS controller issue. However, once the display initialized correctly and worked fine for let's say 30 minutes. So I powered the PC OFF and ON, to see if this was not some bad contacts issue, but I got this issue again...
Can it be related to a slowly dying LVDS chip which sometimes works again?
How can I test the LVDS signals? It requires some fast scope, right?
Thanks a lot for your help
I have a display issue which looks like shown on the attached pictures:
Description: after power-up backlight illuminates itself, the display is black as if everything gets fine. However no bios message is displayed. The display remains black for a few seconds, then starts slowly to get brighter so that the initial perfectly black picture slowly fades out to become some gray color (first attached picture). Some pixels appear green like if they were hot pixels. After lets say 2 minutes the display stabilizes itself as on the second picture (the left edge is blue).
It seems that something is wrong with the LVDS signals. The display works perfectly when attached to another computer.
I first thought it was an LVDS controller issue. However, once the display initialized correctly and worked fine for let's say 30 minutes. So I powered the PC OFF and ON, to see if this was not some bad contacts issue, but I got this issue again...
Can it be related to a slowly dying LVDS chip which sometimes works again?
How can I test the LVDS signals? It requires some fast scope, right?
Thanks a lot for your help
Comment