> For the complete documentation index, see [llms.txt](https://docs.sevenpens.com/drawtab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sevenpens.com/drawtab/troubleshoot/tsg-pen-display-doesnt-show-anything.md).

# TSG: Pen display doesn't show anything

## **NO SIGNAL**

If you turn on your pen display and see a NO SIGNAL message, then this is a different kind of problem. Instead go here: [TSG: Pen display shows NO SIGNAL message](/drawtab/troubleshoot/tsg-no-signal.md)

## Ensure your computer actually detects the display

Does your computer detect the display in the tablet? Check your operating system's display settings. More here: [TSG: Computer does not detect the display](/drawtab/troubleshoot/tsg-display-detection.md)

## Check if the backlight is broken

If your computer does detect the display, but you still see only a black screen, shine a flashlight at your tablet's screen and see if you can detect faint traces of the image your computer is sending. If you do, that means the backlight is broken.

Unfortunately this is not an easy or cheap thing to repair. Most people simply get a new tablet, or if it is under warranty, have the tablet replaced.

* [r/monitors - Anyone know how to fix a extremely dim monitor screen?](https://www.reddit.com/r/Monitors/comments/yg67kk/anyone_know_how_to_fix_a_extremely_dim_monitor/) 2022-10-28

## Check if the display works with another source of display signal

For example, connect it to another computer, Xbox, or DVD player. If you see something, that tells you the pen display is capable of showing an image and that the problem is somewhere else. More here: [DIAG: Checking if a pen display shows an HDMI video signal from other devices](/drawtab/troubleshoot/diag-hdmi-from-other-sources.md).


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.sevenpens.com/drawtab/troubleshoot/tsg-pen-display-doesnt-show-anything.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.