Skip to content Go to Product Search

Yardbird Best Buy Outlet Best Buy Business

Top Deals
Deal of the Day
Discover
My Best Buy Memberships
Credit Cards
Gift Cards
Gift Ideas

Order Status

Main Content

Deals
Support & Services
Brands
Shop by Department

Deals
Support & Services
Brands
Discover
Shop by Department
Account
Order Status
Recently Viewed
Saved Items
Top Deals
Deal of the Day
Gift Cards
My Best Buy Memberships
Credit Cards

Best Buy
Computers & Tablets
Monitors
All Monitors
Product Details

“No signal detected Suddenly Y...????”

Asked by Anonymous 7 years ago

Answer This Question

See all questions & answers

BenQ - 21.5" LED FHD Monitor - Black-Front_Standard

User rating, 3.9 out of 5 stars with 13 reviews.

0 Answers

Visit our Support Center
Check your Order Status
Shipping, Delivery & Store Pickup
Returns & Exchanges
Price Match Guarantee

Order & Purchases

Check Order Status
Shipping, Delivery & Pickup
Returns & Exchanges
Price Match Guarantee
Product Recalls
Trade-In Program
Gift Cards

Payment Options

My Best Buy® Credit Card
Pay Your Bill at Citibank
Lease to Own
Buy Now, Pay Later
Best Buy Business Financing

Support & Services

Visit our Support Center
Shop with an Expert
Schedule a Service
Manage an Appointment
Protection & Support Plans
Haul Away & Recycling
Contact Us

Rewards & Membership

My Best Buy Memberships
View Points & Certificates
Member Offers

Partnerships

Sell on Best Buy Marketplace
Advertise with Us
Affiliates: Creators & Publishers
Best Buy Health
Best Buy Education
Best Buy Business
Partner+

About Best Buy

Corporate Information
Careers
Corporate Responsibility
Sustainability

Sign in or Create Account

Get the latest deals and more.

Email Address

Best Buy appLearn more ›

How was your experience?

Best Buy Canada

Accessibility Terms & Conditions Privacy Interest-Based Ads State Privacy Rights Health Data Privacy Do Not Sell/Share My Personal Information Limit Use of My Sensitive Personal Information Targeted Advertising Opt Out CA Supply Chain Transparency Act

In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.