HT204621: Troubleshooting wireless mouse and keyboard issues
Learn about Troubleshooting wireless mouse and keyboard issues
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May 31, 2012 7:41 AM in response to Swif-Dby Barry Hemphill,Hello:
Try resetting the SMC (you can do that without a KB).
Barry
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May 31, 2012 9:20 AM in response to Barry Hemphillby Swif-D,So how do you rest SMC with the keyboard not connected and the iMac at the login screen?
I have searched how to reset SMC and only seem to find instructions when the iMac is logged in and you have access to the apple menu. I do not have that at this time.
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May 31, 2012 9:41 AM in response to Swif-Dby Barry Hemphill,Hello:
You could have found this by typing SMC resert in the search argument box:
http://support.apple.com/kb/HT3964
Barry
Message was edited by: Barry Hemphill to correct a misread
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May 31, 2012 9:43 AM in response to Barry Hemphillby Swif-D,I must be blind as I do not seem to be able to find the instruction to rest SMC with the login screen showing. i have not mouse ether.
so instructions would help me or a link to were the instructions are would help.
I see the link you add. i will review and see if this helps.
Thank you
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May 31, 2012 9:44 AM in response to Swif-Dby Barry Hemphill,Intel-based Macs: Resetting the System Management Controller (SMC)
Rate this article:Summary
In some situations, you may need to reset your computer's SMC. Learn how to identify these conditions and reset the SMC.
Note: It is possible that the SMC could encounter an issue that may cause unusual system behavior typically related to the symptoms described below. In some cases, resetting the SMC may be the only correct method to resolve the issue, however, an SMC reset should only be attempted after all other standard troubleshooting has been performed.
Before Resetting the SMC
Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.
- Press Command + Option + Escape to force quit any application that is not responding.
- Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
- Restart your Mac by by choosing the Apple () menu from the upper-left menu bar and then choosingRestart.
- Shut down your Mac by by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.
- Unplug the MagSafe power adapter from the Mac and the wall power socket for several seconds.
- Shutdown the Mac. Physically remove and re-insert the battery (if it's removable) and startup the Mac.
The computer's fans run at high speed although the computer is not experiencing heavy usage and is properly ventilated.Lights
The keyboard backlight appears to behave incorrectly (on Mac computers that have this feature).
The Status Indicator Light (SIL) appears to behave incorrectly (on Mac computers that have an SIL).
Battery indicator lights, if present, appear to behave incorrectly (on portables that use non-removable batteries).
The display backlight doesn't respond correctly to ambient light changes on Mac computers that have this feature.Power
The computer doesn't respond to the power button when pressed.
A portable Mac doesn't appear to respond properly when you close or open the lid.
The computer sleeps or shuts down unexpectedly.
The battery does not appear to be charging properly.
The MagSafe power adaptor LED doesn't appear to indicate the correct activity.System Performance
The computer is running unusually slowly although it is not experiencing abnormally high CPU utilization.Video
A computer that supports target display mode does not switch into or out of target display mode as expected.
A computer that supports target display mode switches into or out of target display mode at unexpected times.Resetting the System Management Controller (SMC)
Resetting the SMC on Mac portables with a battery you can removeResetting the SMC on portables with a battery you should not remove on your ownResetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based XserveAdditional Information
The System Management Controller (SMC) is responsible for many low-level functions on Intel-based Macs. These functions include:- Responding to presses of the power button
- Responding to display lid opening and closing on portable Macs
- Battery management
- Thermal management
- The SMS (Sudden Motion Sensor)
- Ambient light sensing
- Keyboard backlighting
- Status Indicator Light (SIL) management
- Battery status indicator lights
- Selecting an external (instead of internal) video source for some iMac displays




- Last Modified: January 19, 2012
- Article: HT3964
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May 31, 2012 9:52 AM in response to Barry Hemphillby Swif-D,I performed the following prior to you providing the link. i also just tried again. I still see the setup assistant for BT and it is looking for a keyboard.
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
- Shut down the computer.
- Unplug the computer's power cord.
- Wait fifteen seconds.
- Attach the computer's power cord.
- Wait five seconds, then press the power button to turn on the computer.
I can not get a menu to appear to perform:
Before Resetting the SMC
Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.
- Press Command + Option + Escape to force quit any application that is not responding.
- Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
- Restart your Mac by by choosing the Apple () menu from the upper-left menu bar and then choosingRestart.
- Shut down your Mac by by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.