T400 - frozen mouse and keyboard after waking from standby

I'm experiencing a very annoying problem on my T400 with Win XP Professional SP3: around 75% of the time, when I wake up my T400 from standby mode, the mouse and keyboard don't work. Actually what happens is one of these situations:
1) Neither keyboard nor mouse (stick and pad) respond - Ctrl-Alt-Del to enter username/password is not registered, I can't log into Windows
2) Keyboard works (I can log into windows) but mouse doesn't respond
I have to close the laptop to standby and re-open, repeatedly, until it finally works. Though one interesting aspect is that if I have external USB keyboard and mouse plugged in, they always work.
Anyone have any ideas? Thank you in advance!

Hello jsolomin and welcome to community,
Kindly update the BIOS and then check if the issue gets resolved.
BIOS Update (Bootable CD)
BIOS update utility for Windows 32-bit
BIOS update utility for Windows 64-bit
Best Regards,
Tanuj
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Unable to get keyboard or mouse focus back after waking from sleep

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Check the Display & Enhance Contrast settings - System Preferences/Universal Access
Or repair permissions and restart your computer.
Or *Disconnect all peripherals from your computer.* Boot from your install disc & run _*Repair Disk*_ from the utility menu. To use the Install Mac OS X disc, insert the disc, and restart your computer while holding down the C key as it starts up.
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Restart your computer when done.
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Hi Everyone:
I recently bought my Mom one of the new Mac mini (I'm a PowerBook user myself), and she's running into some puzzling problems which, while minor, are sufficiently annoying as to confuse poor old Mom.
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Hey Jan:
I've seen quite a few posts in this regard with non-Apple mice and keyboard.
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For worrying about fixing Mom's Mac, setup her remote VNC software (Apple Remote Desktop Client) and use the free Chicken of the VNC admin program.
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Hi Stentdoc; I'm thinking, 'connection lost ~= sorta low AA batteries in the Mighty Mouse? (I would put in fresh AA batteries in the mouse and keyboard, to eliminate as an issue that the 'connection lost' is due to low batt voltage; that this is causing the failure to wake.) ... then, in System Preferences > Hardware > Energy Saver, settings for Power Adapter > Sleep, set to "never" for "Put the computer to sleep when it is inactive for ..." to eliminate that as a conflict when trying to wake with bluetooth from sleep induced by closing the lid ...
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WARNING: Improper use of the sudo command could lead to data loss
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After waking from sleep, my iMac (Lion) is unresponsive. The mouse moves, but when I click things it won't open them.

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FWIW, I never sleep my machines or their HDs, just their displays and never have an issue waking up the displays, usually run 24/7. Give that a shot.

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Hello , Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More. I understand that the mouse and keyboard on your desktop computer does not work if your computer enters sleep mode, and I would be happy to assist you in this matter! To correct this issue, I recommend following the steps in this document on Troubleshooting sleep and hibernate issues (Windows 7). This should help enable your system to wake from sleep mode using your wireless keyboard and mouse. I also recommend connecting wired peripherals to diagnose the functionality of your keyboard and mouse. If your system is still not able to wake from sleep mode, please follow the steps below to restore the default power schemes on your computer: Step 1. Click the Start button
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Step 5. At the command prompt, type powercfg /restoredefaultschemes and press Enter reference: http://superuser.com/questions/669571/windows-8-1-64-bit-power-schemes-gone Please re-post with the results of your troubleshooting, as well as the requested information above. I look forward to your reply!
Regards

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2. Put machine to sleep.
3. After waking from sleep, F11 and F12 no longer control the volume of the external speakers. The "pop" noise when hitting F11 and F12 is emitted from the internal speaker. The mute key (F10) does work for the external speakers, however.
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I have several mid-2009 8-core Mac Pro's, all running Snow Leopard, and all have been having this problem as well.
I will not guarantee this is going to work for anyone else....but we have found a (slightly inelegant) workaround for it that has been working for several weeks now without fail.
Prior to putting your MacPro to sleep, run the volume all the way up and leave it there. Afterwards, put it to sleep as usual. We use the keyboard to do this, but I would imagine any method should have the same affect. However, I've not experimented.
Anyway...this has worked 100% of the time for us. The only downside of it is that you have to remember to run it up before....and then back down after waking (else that first alert sound or music file you play will really wake YOU up!)
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...sT

[Solved] Mouse and Keyboard Dont Work After BIOS Update

I spent the last few hours in windows 7 trying to prove to the guys over at MSFN that my problem wasn't driver or bios related by updating to the latest drivers and upgrading my bios to the most recent version. After I was finished I decided to boot back into arch to work some more on my custom kernel (since oddly it had the same problem before the bios update, the mouse and keyboard worked on one boot but once i rebooted into it again they no longer worked) and found that the keyboard and mouse no longer worked, thinking I had rebooted into the custom kernel by accident I rebooted and selected the default kernel once again only to find that the mouse and keyboard still didn't work.
Any ideas on how to fix this? I really don't want to reinstall since I just installed it last night.
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Last edited by brando56894 (2010-01-08 08:04:21)

Hello base76, welcome to the HP Forums.
It appears that the mouse and keyboard aren't working correctly. I will try to assist you with this.
To start could you please provide the following:
Model and product numbers for you notebook.
Currently install operating system.
Were these working previously? If yes, were any changes made prior to them not working?
Have you attempted any troubleshooting? If yes, what have you tried so far?
I look forward to your reply.
Thank you for posting on the HP Forums.
I worked on behalf of HP.

T400 - frozen mouse and keyboard after waking from standby

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