The Studio 1535 (laptop with Vista and <ADMIN NOTE: Service tag removed as per privacy policy> suddenly stopped showing any display a few days ago. I have tried disconnecting the power cord and the battery, and doing a shutdown by holding down the power key, but none of these methods have had any effect. I have had nothing but a blank screen, but when I attach an external monitor, everything is operating properly on the external monitor.
I also have flashing volume control keys, and was wondering if that might be a clue to what is going on, and what needs to be corrected? The Mute key and the Volume Up key are flashing on and off at the same time. The Volume Down key is steadily on.
Then I run the diagnostic test there I got "ERROR CODE: 0321 LCD EDID - UNABLE TO ACCESS EDID EEPROM"
Any idea if this could be a backlight or LCD issue, video chip issue or broken cable? Thanks!