Ck710ue Driver Work — Direct Link

| Error Symptom | Root Cause | Solution | | :--- | :--- | :--- | | | IRQ conflict or stale driver cache | Uninstall hidden devices in Device Manager (View → Show hidden devices). Reboot. | | Blue Screen (BSOD): pci.sys or serial.sys | Incorrect DMA channel assignment | Boot into Safe Mode. In the driver properties, disable Enable MSI (Message Signaled Interrupts) . | | Data corruption at high baud rates | FIFO buffer overflow | Reduce the FIFO receive buffer to 14 bytes (Default is 256). Found in Port Settings → Advanced. | | Driver works then disappears after sleep | Power management throttling | In Device Manager → Properties → Power Management → Uncheck "Allow the computer to turn off this device" . | | Linux: "ttyS0: too much work for irq4" | Interrupt storm | Use setserial /dev/ttyS0 spd_hi to lower IRQ load. |

Keyboard Setup Guide: Connect USB, Wireless, and Bluetooth ... - Dell