Foxbat Posted August 15, 2015 Share Posted August 15, 2015 After having waited long enough for LCD technology to improve to an acceptable level of performance, I finally upgraded my Win98SE computer's monitor from a CRT to a Dell U2413 professional level IPS. I compared the latency between both monitors side by side, and the LCD lags a bit as expected. However, there was an unexpected weird behavior with the mouse pointer on the LCD. There's the expected slight lag, but moving it around the screen, it appeared to have a floating feeling, as if a smoothing filter was applied to the mouse movement. No such option exist in the mouse settings. Mouse acceleration is off. If I click and drag a window around the screen, the pointer does not exactly follow the window where one would expect the pointer to be. Same thing happens with scrollbars, or dragging anything around which provide an object of reference.I though maybe it was the input lag. I use IPS and TN monitors all the time, at work, in school, and at home. I have a cheap TN that is connected to another computer and an LCD TV connected to my brother's computer. LCD TVs are notorious for terrible input lag, yet there was no floating mouse phenomenon. This only happens on my Win98SE computer with this monitor.To eliminate some factors, production models of the U2413 from the first two years had problems with ghosting and overshoot, which has been resolved in the latest revision, and is unrelated to this problem. The U2413 has a game mode that makes it one of the fastest IPS monitors, making the display lag performance as Class 1 in an in-depth review by TFT Central. Activating game mode doesn't fix it. Tried swapping different mice, optical or laser, high or low DPI, PS/2 or USB, and it's still there.Searching for a solution, I found something that might explain this behavior. According to this condition, the GPU renders the mouse pointer separately from the rest of the screen. It is usually not apparent in CRTs, but sometimes, the floating mouse behavior appears on an LCD. Some users experiencing this issue reported it to be resolved if the hardware acceleration slider is moved one step to the left, while others needed to completely turn it off. I tried it, and it did not help. Anyone recognize this problem?My configuration:PIII 1GhzWindows 98SENVIDIA GeForce4 Ti 4200 with 56.64 driversNUSB 3.6eKernelEx 4.5.2 Link to comment Share on other sites More sharing options...
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