It was when I disconnected the mouse and keyboard that the panels went to sleep. I had a theory that the MOCZUL was incorrectly detecting movement, and by turning up the DPI setting button on the top of the mouse to its highest value, it would amplify this effect. Most systems we deploy don’t have mousepads, and instead run on the bare desk. The original Lenovo mice never had this problem. One of the last tests I did was also the most telling. As of late September I have finally reached someone at Dell above level 1, and am in the process of diagnosing the issue.

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Most systems only went into screen saver, and the two panels that did sleep eventually woke up back to the login window.

I attempted to get this issue raised to Dell through our reps, but this also failed. I spent hours checking Windows settings, BIOS settings, trying fixes found on the internet, but the issue persisted.

This test proved my theory!

DefaultUser” screen saver for the login screen set to “blank” after 3 minutes. Fast-forward now to Septemberand this issue is still gnawing at me. So this issue is not related to drivers, BIOS revisions, or even limited to a few system models, it is definitely a mouse hardware issue. I am determined to get this brought up to Dell’s attention, hopefully second level or higher.

Dell Silver USB Laser Optical Mouse MOCZUL

The best part in all this is that the mouse also affects non-Dell systems. Sometimes they are enough to stop sleep, or screen saver. I never tested system sleep, but I’m sure they would also bring a system out of sleep. In our training labs all the mice are on mousepads, but I’ve been testing on an anti-static mat when on my bench. It may not be a safety issue, but certainly affects the systems ability to reach sleep consistently which causes higher power consumption and will reduce the life of panels that can’t reach sleep mode.

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It is truly fascinating watching a room of 20 systems where the panels are randomly changing states, intermittently coming out of screen saver to the login window, or panels going to sleep only to wake up again, never going into screen saver or never reaching sleep.

And some would come out of screen saver or sleep back to the login screen. I saw about packets in about 2 hours, mpczul to about 60 packets in 6 hours on the same mousepad but running in normal sensitivity mode 1-LED.

MOCZUL-DELL DELL MOUSE 6 BUTTON LASER MOUSE WITH USB CABLE – 6 BUTTON

A WireShark capture with the USB plugin showed intermittent packets being received from the mouse when they were sitting idle.

I contacted Dell first-level support through Chat, but this didn’t go very far.

As of late September I have finally reached someone at Dell above level 1, and am in the process of diagnosing the issue. The original Lenovo mice never had this problem. Putting the mouse on a rough nylon mousepad really brings out the issue.

DELL USB WIRED MOUSE MOCZUL-DELL

It was when I disconnected the mouse and keyboard that the panels went to sleep. Still no resolution, so I install the Lenovo mice and move on. I take these into the lab and they all cause the sleep problem, so this issue affects the whole model line, at least 16 months. The problem was finally isolated to the mouse What seems to be happening is the packets that are being sent from the mouse don’t always push the panel out of sleep mode or out of screen saver, but instead seem to reset the internal timer for activating panel sleep.

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One of the last tests I did was also the most telling. Now I have about 5 different production dates to test. I have put up this page in the hopes of helping anyone else that has seen weird sleep issues when a Dell MOCZUL model mouse is attached to your system. Fast-forward a few months to April I then let the systems go idle and watched them for minutes.

These systems are set to “high performance”, no system mooczul, panels set to sleep after 45 minutes, and the “. Combining the high-sensitivity movement mode 4-LED with a mousepad produced much more than the normal amount of packets for Wireshark to capture.

Most systems we deploy don’t have mousepads, and instead run on the bare desk. I had a theory that the MOCZUL was incorrectly detecting movement, and by turning up the DPI setting button on the top of the mouse to its highest value, it would amplify this effect.