I’m guessing it was probably related to the drivers as well. I also recall speaking to someone who had a similar issue, albeit on Windows 7. The flickering went away immediately, and it continues to work correctly resuming from standby. So I uninstalled my existing Nvidia drivers and installed the 64-bit driver linked to above. NVidia NVS 3100M – Win7/Vista 64-bit Graphics Driver (this is the one I used) NVidia Quadro FX 880M – Win7/Vista 32-bit Graphics Driver He posted links to a Dell search for A08 drivers and two drivers that specifically worked: He did, however, find a fix: Dell’s A08 drivers for the NVS 3100M graphics chipset. He even indicated that he’s had hardware replaced on his notebook, and that didn’t fix the issue. I later found this blog post from someone having the exact same issue. I even would have the problem if I shut down completely and powered the laptop back on a few moments later. I also noticed that putting the display in 40hz mode and then back in 60hz mode didn’t fix it either. I updated the graphics drivers from the built-in Windows 8 drivers to the latest ODE graphics driver for Windows 8 64-bit (310.90) - that didn’t fix it. The effect would gradually diminish with time, but wouldn’t completely go away. The best way to explain it was to say that there was something very wrong with the display refresh rate. I upgraded my Dell Latitude E6510 with an Nvidia NVS 3100M to Windows 8 a short time ago, and noticed something fairly quickly: Whenever my display came back on after being powered off from power saving mode, or the laptop came out of sleep mode, the screen had a very noticeable flickering and some distinct horizontal lines.
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