Hey everyone,
I’m experiencing a strange issue with my laptop GPU and would appreciate any input from people who may have seen something similar.
Specs:
• Laptop: Alienware m16 R2
• GPU: RTX 4070 Laptop (8GB VRAM)
• CPU: Intel Core Ultra 7 155H
• RAM: 32GB
• OS: Windows 11
• External display: HDMI
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The issue:
When gaming on an external display (TV or monitor), after about 40–60 minutes under high GPU load, visual artifacts start appearing — small colored squares/glitches across the screen.
The image becomes difficult to use, but:
• The game does not crash
• System remains responsive
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Important detail:
At the same time, the internal laptop display shows no artifacts at all.
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Observed behavior:
• Happens almost always under high GPU load (\~100%)
• On lower graphics settings, I can play for hours with no issues
• GPU temperature is within normal range (\~60–80°C depending on load)
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Testing I’ve done:
• Tested multiple external displays (TVs/monitors) → same behavior
• Played for \~2 hours on internal display only at high/ultra settings (100% GPU load) → no artifacts
• The issue consistently appears only when using an external display under load
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Question:
Has anyone experienced something like this?
I’d like to understand what this could be and whether this behavior points to a specific type of problem.
Any insights would be greatly appreciated