XPost: comp.os.linux.misc, alt.comp.os.windows-10   
   From: java@evij.com.invalid   
      
   On 2025-07-16 13:00, Marco Moock wrote:   
   > On 16.07.2025 13:44 Carlos E.R. wrote:   
   >   
   >> Some months ago, the display went black on boot, but closing the lid   
   >> and opening it again made it work. Today it is impossible, it goes   
   >> dark instants after opening the lid. I have repeated the operation   
   >> dozens of times. It happens before booting and keeps doing it after   
   >> booting. It makes the thing totally unusable.   
   >   
   > Does an external monitor work?   
   >   
   > It may be a faulty LCD panel, but also a faulty graphics card.   
      
   Or simply a loose connection on the cable between the two, which   
   happened to me on a Dell Inspiron 15RSE 7520.  As the computer is turned   
   on it warms up, and after turning off it cools down, and sometimes the   
   small changes in the dimensions of things associated with this thermal   
   cycling can gradually 'walk' cable connectors off or out of their other   
   half on the PCB.  For this reason they are often held in place with   
   sticky tape, glue, or some such, but if in the past the computer has   
   been repaired such seals may not have been replaced, or may no longer   
   hold so well.   
      
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