Dual Monitor Setup: screen flickers when game is launched

By Ragde
in Hardware Hangout

 Share

Recommended Posts

Community Regular

Ragde

Posted
Posted

Hello all,

I hope this is the right category for my situation.

I have my laptop (Vostro 3350 - specs in sig.) and my recently purchased Dell U2312-HM connected to it via VGA cable. It's setup to Extend Display where U2312 will be main and the laptop screen is secondary. The laptop screen resolution is 1366 x 768 and U2312 is at 1920 x 1080.

Whenever I launch a game (fullscreen), the laptop screen flickers while the U2312 shows black but the game music can be heard. I'd have to set it to single display and only then it works good. What could be wrong here?

I'd like to have it so I don't have to switch back and forth from extend to single display and vice versa when I'm working or gaming.

Mentor

Starbuck84

Posted
Posted

Could be an issue with the game you're trying to play. Care to mention the name of the game or does it happen to more games? I'm running the same setup as you, laptop screen is 'extended' and my external monitor is my 'main' desktop and I had this happen to me once with ZDoom. Had to alter its setting file and everything was a-ok. If it happens to all games, it could be driver related? Just guessing here.

Community Regular

Ragde

Posted
  • Author
Posted

Change your display settings in Windows to span the monitors, not clone. Then if in windowed mode, you can drag the game to the monitor instead of playing it on the laptop screen.

It's already set to Extend (span) (U2312 is main display; laptop screen is secondary). I'll try the windowed mode option though. That should work. :)

Community Regular

Ragde

Posted
  • Author
Posted

Press win+p and choose "projector only" when playing.

Yeah, that's what I'm doing currently. I know it's not really much of a hassle to switch back and forth - press Win + P and selecting Extend / Projector Only but I was curious to know if it's possible to not switch back and forth.

Grand Master

articuno1au

Posted
Posted

For ****s and giggles, can you tell me if your screen flickers when you close a browser window with a youtube video running in it?

If so, it's a noted issue with the ATI driver. It occurs when the clock rate on the card changes caused by a 3D profiled game starting, or a flash instance terminating suddenly. The change in clock rate messes with the frame buffer causing flickering.

I've been waiting for a fix since I bought my HD5830's :( Still nothing :\

EDIT::

That's the problem with the internet generation.. I want to know if I am right.. NOW! :p

This topic is now closed to further replies.
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Posts

    • Ford execs say they made a mistake when they replaced human engineers with AI

      By TsarNikky · Posted

      How many other companies will follow Ford's lead? Or, have they already gotten lazy and become enslaved to AI--and now can't figure out how to get out of that mess.
    • The Trump administration doesn't want you to use OpenAI's GPT-5.6 without its approval

      By TsarNikky · Posted

      Why would any self-respecting intelligent person follow any recommendation by Donald's GOP administration? With almost two years of fabrications, deceit, and blatantly illegal behavior, why believe them now? They had best be gone after the November 2026 election, so we'll wait and see.
    • AltSendme 0.4.1

      By Copernic · Posted

      AltSendme 0.4.1 by Razvan Serea AltSendme is a minimal, cross-platform application designed for fast, secure, and private peer-to-peer file transfers. It allows users to send files or entire directories directly between devices without relying on cloud servers, accounts, or any personal information. Everything is encrypted end-to-end using modern protocols like QUIC and TLS 1.3, ensuring both strong security and low-latency performance. Transfers are verified with BLAKE3 for data integrity, and interrupted downloads automatically resume, making the experience reliable even on unstable connections. You can transfer anything—images, videos, documents, and more. Integrity checks are performed on both ends, so your files are automatically verified for correctness during both sending and receiving. AltSendme works seamlessly across local networks or long-distance links, capable of saturating multi-gigabit connections for extremely fast delivery. With built-in NAT traversal and encrypted relay fallback, it connects devices almost anywhere. The app integrates with the Sendme CLI and will soon support mobile and web platforms. Fully free and open-source, AltSendme offers a lightweight, privacy-first alternative to traditional cloud-based services, removing size limits, upload costs, and unnecessary data exposure. AltSendme 0.4.1 changelog: Release Highlights Self-hosted relays: Run your own iroh relay so transfers don't rely on public infrastructure. Includes a full deployment template in deploy/relay/ with Docker Compose for a VPS and configuration examples for production use. Fly.io support: One-click deploy template for Fly.io, including a quick-start config (fly.dev.toml) for testing without a custom domain, plus production setup with Let's Encrypt and your own hostname. Relay settings UI: New Settings → Network panel to choose how AltSendme connects: automatic public relays, custom self-hosted URLs (with optional auth token), or disabled. Test connections, verify latency, and see live relay status in the footer. Disable relays: Turn off relay servers entirely when you only need same-network transfers (e.g. LAN). Direct connections only. No relay hop required when devices can reach each other. Android graduates from beta: Android is now part of the regular release cycle alongside desktop. APKs ship with each version (universal, arm64, and armv7). Other improvements Private relay access control via shared auth token Relay fallback notifications when a custom relay is unreachable Broadcast mode toggle in sharing settings Android release build fixes (split-per-ABI APKs, universal APK preservation) UI polish: mobile safe-area insets, dropzone layout, transfer progress animation Bug fixes for minification-related serialization issues and system tray icon loading What's Changed feat(relay): add relay status functionality and settings UI (a120cdf) feat(relay): implement custom relay server configuration and verification (51276c7) feat(relay): add configuration for private relay access and enhance observability features (48fbabf) feat(relay): enhance relay URL validation, display connection status (d4fffa0) feat(relay): add RelayChangeGuard component and enhance relay-related translations (16ba514) feat(broadcast): add toggle setting for broadcast mode in sharing UI (ca6d977) fix(relay): correct QUIC discovery port, pin image, templatize fly.dev (52a2ba5) fix: More broken serialization due to minification (67491a9) fix(android): preserve true universal APK across per-ABI builds (e9f256f) fix(ui): conditional safe-area insets padding on mobile (1182f0e) refactor(transfer): CircularRing component animation fix (944572b) chore(android): drop x86 and x86_64 release APKs, keep universal+arm64+armv7 (34ada0b) Download: AltSendme 0.4.1 | ARM64 | ~9.0 MB (Open Source) Download: AltSendme for MacOS | Android Links: AltSendme Home Page | GitHub | Screenshot Get alerted to all of our Software updates on Twitter at @NeowinSoftware
    • Why Delta Chat is the best decentralized messenger you have probably never tried

      By zikalify · Posted

      You are mostly right about the ephemeral nature of it. As I mention in the article, if you dont add a second device or take a backup of your account before uninstalling it, then yes you will lose access to your account. That said, in terms of actual user experience when you sync multiple devices your message history carries across and there's also a Saved Messages chat like there is on Telegram to send messages and attachments between your installs. But yh, what you point out are correct and its not trying to emulate Messenger or Telegram.
    • You've tried DuckDuckGo and Brave Search, now get serious with SearXNG

      By zikalify · Posted

      OK so SearXNG is a meta search engine that you can install locally or use via a public instance. It scrapes other search engines which you choose and then sorts the results. Not as complicated as multiple relays

  • Recent Achievements

    • Week One Done
      flexorcist earned a badge
      Week One Done
    • One Month Later
      Woland13 earned a badge
      One Month Later
    • Week One Done
      Woland13 earned a badge
      Week One Done
    • One Year In
      bernmeister earned a badge
      One Year In
    • Week One Done
      Scoobystu earned a badge
      Week One Done

  • Popular Contributors

    1. 1
      +primortal
      492
    2. 2
      +Edouard
      224
    3. 3
      PsYcHoKiLLa
      150
    4. 4
      Steven P.
      75
    5. 5
      FloatingFatMan
      71
    Show More

  • Tell a friend

    Love Neowin? Tell a friend!