1.  Probably, but there will be a cost for repair estimate, which is then applied to the repair.
2. Call Dell in your location and arrange an out of warranty estimate.  You can also contact a local repair shop.
3. If it's the display, about $150 for the part;  add an hour or so labor, whatever that costs where you're located.  

there is also the possibility the display is OK -- if so, it'll need a mainboard replacement -- those will be appreciably more expensive than a display assembly.

Hi

Your symptom—display failing as the lid is opened past about one-third, then failing completely while an external monitor still works—strongly suggests a display cable/hinge-related fault rather than a failed graphics system.

• Display/eDP cable failure, especially where it runs through the hinge—very consistent with a screen that cuts out at a particular lid angle.ifixit

• Damaged or stressed hinge, which can pinch or abrade the display cable over time.dell+1

• Less likely: a failed internal display panel or a motherboard-side display connector issue.

A useful pre-check is Dell’s built-in LCD self-test: with the laptop off, hold D while pressing power; release D when colour bars appear. If the internal panel shows the colour bars, the panel itself is more likely functional and the cable/hinge becomes the prime suspect.dell

Therefore as stated above an assessment/estimate will be necessary.

@anne_droid​ Ok, I appreciate your response and, after conducting some research, tend to believe it is a cable failure issue also. I will troubleshoot based on your steps listed above before contacting Dell. Thanks again!

@MudcatHokie1dd217​ 

Prego.

Happy to help.

@MudcatHokie1dd217​ 

That means a new display assembly -- the cable is not separately replaceable.  The assembly is bonded together with strong adhesive, and even if you could somehow take it apart without destroying it, you'd need another assembly as a source of the cable, which is not available as a separate part.

@ejn63​ So in other words, on this laptop, the cable is integrated with the display? I have not been able to confirm this. I have an XPS-13 9315, but can't see the related part discription on Dell's website. Can you please let me know the source of your information? Thanks again. Regards, John

@MudcatHokie1dd217​ 

It depends -- is this a standard clamshell or a 2-in-1?  And if a clamshell, touchscreen or not?  You may be able to change the cable alone for a clamshell with a non-touch screen.  If you have the clamshell with the touchscreen or the 2-in-1 model, it's a single assembly with a non-removeable cable.

Try parts-people.com with the service tag number to see your options.

@ejn63​ 

@MudcatHokie1dd217​ 

There are some for sale on EBay (example)