I'm having a problem where my PC boots up, but my monitor shows a message saying 'No Signal' before entering power-saving mode. Initially, the monitor displayed the Gigabyte logo in a larger resolution, but then it cut off. My Bluetooth detects the monitor, so it seems to be somewhat operational. I managed to see a blue screen once that provided options like continue to Windows, reset PC, troubleshoot, and restart, but when I clicked 'continue', it immediately turned black again.
Prior to this, my PC was running perfectly fine for many hours a day, and I didn't notice any shutdowns or glitches. I often use it for 10-13 hours daily, but I make sure to put it to sleep during breaks. I've checked inside, and the components like fans and cards are clean with good ventilation. I can't remember updating Windows or any drivers lately. I tried unplugging everything, but that didn't help, and I'm not sure how to update drivers since I can't get past the black screen. Any advice on what to do next?
4 Answers
One quick fix that has worked for others is trying out a different cable or another port on the graphics card. Monitors sometimes get finicky, and the cable could just be causing the issue. Let me know if that helps!
Have you thought about performing a CMOS reset? It's pretty simple! Just turn off the PC, press the power button for around 30 seconds, and remove the coin battery from the motherboard for about 5 minutes. Put it back and see if it helps the boot process. If that doesn't work, chances are you’re facing a software issue.
If you're using HDMI, try switching to DisplayPort, or vice versa. I've dealt with a similar issue before, and it was resolved by changing out the cable and enabling the Compatibility Support Module in BIOS. Sometimes BIOS settings revert unexpectedly. It’s worth a shot!
It might be helpful to check if your monitor is connected to the right video output. Sometimes the display gets routed to the motherboard’s integrated graphics rather than the dedicated GPU, especially if you recently made any hardware changes.
Also, check to see if you can enter the BIOS when you boot up. If you can see that screen, it indicates that the hardware is mostly fine, and could hint at a Windows issue.
Thanks for the tip! I’ll definitely check if I’m using the right port for the monitor as well as accessing the BIOS.