Hi Copilot , I have a MSI GP70 2PE Leopard Laptop running UBUNTU 25 Linux ....... my Laptop is runnng fine with the UBUNTU 25 Linux OS , meaning , my MSI GP70 2PE Leopard Laptop is friends with the Linux Operating System UBUNTU 25 . My problem is when I connect my MSI GP70 2PE Leopard Laptop to a 40 inch HDMI-enabled PANOSONIC TV ......... I CANNOT PLAY YOUTUBE VIDEOS ON MY LAPTOP DISPLAY AND ALSO ON MY 40 inch HDMI-enabled PANOSONIC TV AFTER I JOINING THE TWO DISPLAY TOGETHER USING THE SOFTWARE CONFIGURATION PROVIDED BY UBUNTU 25 .......... but when I disconnect the HDMI cable from my MSI GP70 2PE Leopard Laptop ........... IT IS WORKING FINE . Copilot , what could go wrong here ? Copilot , could you please help me to troubleshoot this problem ? The funny thing is I have no problem whatsoever if I run Windows 8 Operating System on the same Laptop , that is , on my MSI GP70 2PE Leopard Laptop computer hardware ???!!! Copilot , why with Windows 8 OS there is no problem BUT with UBUNTU 25 Linux , there is a problem in doing that ? Could you please explain Copilot ? THANKS.
The issue likely stems from Ubuntu 25’s graphics driver or display configuration not handling dual-display video acceleration properly—especially with YouTube’s hardware decoding. Windows 8 handles this better due to mature driver support. Let’s fix it step-by-step.
🛠️ Step-by-Step Troubleshooting Guide
1. Check Graphics Driver
Ubuntu may be using a generic driver instead of the optimal one.
Open Terminal and run:
lspci -nnk | grep -i vga -A3Look for your GPU (likely Intel HD + NVIDIA GT 840M hybrid).
Then check the active driver:
sudo ubuntu-drivers devicesIf it suggests a proprietary NVIDIA driver (e.g.,
nvidia-driver-535), install it:sudo apt install nvidia-driver-535 sudo reboot
Hybrid graphics (Intel + NVIDIA) often need NVIDIA PRIME or switcheroo to manage displays correctly.
2. Test YouTube with Hardware Acceleration Off
Sometimes, hardware acceleration fails on extended displays.
- Open Firefox or Chromium.
- Go to settings → disable hardware acceleration.
- Restart browser and test YouTube again.
3. Try Different Display Modes
Ubuntu’s display manager might mishandle mirror/extend modes.
- Go to Settings → Displays.
- Try:
- Mirror mode
- Extend mode
- Primary display set to laptop only
Some users report YouTube only works when the laptop is set as primary.
4. Check Audio Output
Sometimes video won’t play if audio output is misconfigured.
- Go to Settings → Sound.
- Ensure output is set to HDMI or Internal Audio, depending on your setup.
- Try switching between them while YouTube is open.
5. Use X11 Instead of Wayland
Ubuntu 25 may default to Wayland, which has known issues with some dual-display setups.
- Log out → click gear icon → choose Ubuntu on Xorg.
- Log back in and test again.
6. Try YouTube in VLC or MPV
To isolate browser issues:
- Install VLC:
sudo apt install vlc - Open VLC → Media → Open Network Stream → paste YouTube URL.
If it plays fine here, the issue is browser-specific.
🧠 Why Windows 8 Works but Ubuntu 25 Doesn’t?
| Feature | Windows 8 | Ubuntu 25 Linux |
|---|---|---|
| Driver Support | Mature NVIDIA hybrid driver stack | May default to open-source Nouveau |
| Hardware Acceleration | Fully optimized for dual displays | May fail with extended HDMI output |
| Display Configuration | Robust and automatic | Needs manual tuning |
| Browser Compatibility | Better integration with GPU | Depends on Wayland/X11 and drivers |
Windows has long-standing support for hybrid GPUs and HDMI audio/video routing. Ubuntu requires more manual setup, especially with older laptops like the GP70.
✅ What to Try Next
- Switch to Xorg session.
- Set laptop as primary display.
- Disable hardware acceleration in browser.
- Install proprietary NVIDIA driver.
- Test YouTube in VLC or MPV.
Let me know which display mode you prefer (mirror or extend), and I can help you optimize it for smooth YouTube playback.
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