Same problem here, it happens with a thunderbolt Apple display, and a thunderbolt LG display, and it's sometimes fixed after connecting/reconnecting/changing USB ports for the keyboard. On the LG even that did not work, only a complete reboot. I'm googling now for a USB reset solution that does not reboot my Mac.
Is there any way to block/unblock USB mass storage device in MacOS X using script or I/O framework without reboot ?. The same can be done in Window easily using system commands, so I wanted to know if this is possible on OS X. 3 Reset MacBook Memory; ... Click the Apple logo and click "Restart" to reboot your Mac laptop. A reboot is a simple way of solving common hardware problems. ... "How to Reset USB Ports on Mac ... Sometimes, just like applications can act unresponsive and buggy, hardware ports can have similar problems. And just like those applications, a reboot or a reset can fix a problem like a USB port. The first step in our USB port troubleshooting is the easiest one: a simple reset of the Mac. Press the icon in top left of screen; Click Restart Aug 09, 2015 · I have a MAC PRO 3,1 8-Core that all USB ports stopped working, I tried the SMC reset, and it does not work, PRAM and NVRAM reset dont work since the USB ports don’t work, I dont have a wireless keyboard or mouse (bluetooth), and even if I had I cant configure them since I cannot use the mouse or Keyboard. so basically stuck. What about a USB COM port dongle? I assume you're running a DOS box in Windows since you mention Device Manager. If you installed a USB to SERIAL port device, (many offer DOS emulation) if the port locked up, you could close the DOS window, unplug the dongle and then plug it back in again, which would give you your'hard' reset without a reboot.
Jan 16, 2012 · Total 6 port, 2 External Port on the top of CPU, probably 4 on the back. Problem: Usally my seagate external hard drive is attached to the top second port always. On a nice morning, 2 day back I got a message from the system tray (after system comes off from night sleep) that " USB mass storagedevice has exceeded the power limits of its hub port". Hello, On my Latitude D410 - WinXP pro SP2, occasionally the USB ports seem "stalled" (i.e. activesync won't detect my PDA, when I connect my USB2 DVD+RW drive it won't show up in explorer, etc.) I am not sure about the cause, but I would like to "reset" the USB ports without rebooting WinXP, is t...
I am looking for a program to reset a given USB port. If possible, it should be possible to disable and enable one of several USB ports at once (one reason being that it would help to find the USB port I want to reset as USB port names can sometimes be not entirely explicit). If I plug the usb hub and then restart my Macbook (12", USB C port only) they are working fine. I can't keep logging out or restarting each time I need to connect one, and I have already tried to restore my Mac without using any backup (huge waste of time, really ). So I am looking for a way to kill/restart the USB service manually via terminal. Apr 17, 2018 · Repeat step 4 for each USB controller that is listed under Universal Serial Bus controllers. Restart the computer. After the computer starts, Windows will automatically scan for hardware changes and reinstall all the USB controllers that you uninstalled. Check the USB device to see whether it is working. If the USB port recognizes the device ... Hi, what is the code need to write in batch file so that when we click that batch file it will automactic disable/ Enable our laptop usb port. means that usb port cannot been connect with other usb device. this purpose is the way to restart usb port. b) Expand Universal Serial Bus controllers. c) Right-click every device under the Universal Serial Bus controllers node, and then click Uninstall to remove them one at a time. d) Restart the computer, and then reinstall the USB controllers. e) Plug in the removable USB device, and then test to make sure that the issue is resolved.