Posted 24 April 2012 - 11:28 PM
Thanks for taking the time to read this!
Relevant Laptop specs:
Radeon HD 6650M (5107 MB)
17.3" LCD (B173RW01 V.3 -- Freshly replaced)
Windows 7 64x
I recently replaced a broken internal LCD on my Acer Aspire 7750G laptop. The reinstall went fine, at first; then, I noticed that bios wasn't registering the new screen for some reason; the screen would stay black until windows booted up and (presumably) loaded the screen drivers. In attempting to fix the problem with BIOS not recognizing the screen I did the following; at some point, the screen stopped being recognized by both windows and bios:
I rolled back the Radeon HD 6650M driver
I reset the bios settings to defaults
I restarted the computer after having been only hibernated for a few weeks
What I have tried to fix this problem:
I reflashed the bios to V 1.20, from Acer's site.
I reinstalled the Radeon HD 6650M driver from Acer's site.
I took the computer apart and tested the connection to the monitor as best I could. I found no loose connections, and the webcam (on the same harness) still works fine.
I should mention that both before, when only bios failed to recognize, and now, an external monitor worked in all cases. In display settings, the external monitor is the only one recognized. Hardware manager shows only the external monitor, and no errors or anything come up to indicate the computer even knows there should be an internal screen. From here I am just completely confused and frustrated. I'm wondering if flashing the bios with an external monitor plugged in may have caused some damage, or not? Should I try reinstalling all the drivers and reflashing without the external monitor, or would that be a waste of time? Thanks again.