SD Card Reader, USB works intermittently

I have an early 2011 macbook pro, 15". For over two years now, the SD card reader and the USB ports have been working intermittently... sort of. The card reader /sometimes/ works. The USB mouse almost always works but a USB headset that works on other computers stopped working completely on the macbook at the same time as the card reader. I've since been having USB drives "eject" on me without my doing it.
Of course, these things began soon after the Apple Care ran out so I have just been living with it but it's been driving me crazy.
I tried canned air to no avail and even installed a fresh copy of Mavericks a few months ago in case it was a software/driver issue. I don't know what else to try. Any ideas? One of the reasons I have a macbook pro is for photography, so this kind of *****.
Incidentally, the laptop was not dropped or anything like that. No ideas or dogs or rough household members to do something to it without my knowledge, and I have been quite careful with this thing... so I don't think it would be a loose connection. I do leave it sleeping a lot of the time when not in use...?

Hi there! I tried loading the module manually, but no success. Inserting an SD (once booted) doesn't make a difference, and nothing shows at dmesg (it does when there is a card at boot).
It seems to be a BIOS error, that somehow doesn't show up in fedora.
Anyway, I have an external card reader that works like charms, so by the moment I'll wait until the bug is solved. I've seen it has been reported, under Ubuntu.

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Welcome to Apple Support Communities
Simply take it to an Apple Store or reseller if it's in warranty. Your Mac will be repaired or replaced for free because it looks a hardware problem rather than a software issue.
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Hi
Sorry, but the way the industry works is that Microsoft develops Windows and Hardware manufacturers develop drivers for their products. Microsoft does maintain a complete division (MSDN) that is dedicated to assisting hardware and software manufacturers in developing their products for compatibility with Windows.
All of the drivers that are contained on the Windows installation disk and on Windows Update are placed there by the manufacturers of the devices. This is a service that Microsoft provides to help these manufacturers to distribute their drivers.
What you can do.
1. Check with the computer manufacturer for updated drivers for that device. This is your best source, since the computer manufacturer builds, tests, and sometimes develops their own, custom drivers to work with the hardware on their PCs.
2. Try to determine the name and manufacturer of the device using Device Manager and MSInfo32. Once this information is found, try to find that manufacturers website and look for the latest compatible drivers.
3. Check to see if there are any users forums on the PC manufacturers or device manufacturers websites. Ask there about any known issues with this particular hardware device or if the device is no longer supported.
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Right now, we are in a unique situation since we are using an operating system that is still in the pre-release phase. Many hardware/software manufacturers will be ofrficially supporting their products for Windows 7 until after the General Availability date of October 22, 2009.
Hope this helps.
Thank You for using Windows 7
Ronnie Vernon MVP

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EDIT 2:
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Disc: Disc 1
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EDIT 3:
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I'm experiencing a similar situation with my 1-year old T430s. The built-in card reader was working fine until recently when it stopped working.
Now the built-in SD card reader doesn't recognize SD cards that are recognized in external USB adapters.
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When I put the same SD cards into an external USB adapter they're recognized by Windows, assigned a drive letter and visible to Windows Explorer as well as other applications.
Do I have a defective card reader?
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rv9a
This question was solved.
View Solution.

Good morning rv9a.
Prior to the uninstall did the computer make a noise to indicate it recognized the card when you put it in?
You should go ahead and reinstall the specific driver for the card reader just to make sure that doesn't have an effect on the issue. Here is the link for Windows 7 and here is the link for Windows 8.
Another possibility is the the Plug and Play service is deactivated. Try the following to check.
Press the Windows+R keyboard shortcut.
Type "services.msc" into the box and click okay.
Scroll down until you find "Plug and Play" in the list.
Ensure that it is started. If it is not right-click on the service and select Start or Enable.
I'll keep an eye out for your response; have a great day!
Please click the white star under my name to give me Kudos as a way to say "Thanks!"
Click the "Accept as Solution" button if I resolve your issue.

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Hello,
the drivers are there:
http://support.lenovo.com/de/de/products/desktops-and-all-in-ones/lenovo-h-series-desktops/lenovo-h5...
http://support.lenovo.com/de/de/products/desktops-and-all-in-ones/lenovo-h-series-desktops/lenovo-h5...
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I understand that your SD Card Reader is not working on your HP Pavilion Elite HPE-500z CTO Desktop PC. Has it ever worked? If so I suggest you follow the steps in the HP Support document: Using Microsoft System Restore (Windows 7) and roll your system back to a point in time where your SD Card Reader worked.
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Next, I would like you to review and follow the steps set out in the HP Support document: Performing an HP System Recovery (Windows 7), which will you through recovering your computer back to factory settings.
*** IMPORTANT - Your personal files such as libraries, personalization settings, user accounts, and desktop themes are permanently removed. As well the computer settings are returned to the defaults (the way it was when it came from the factory). All apps and software that were installed on the computer when it came from the factory are reinstalled, and their settings are reset to the defaults. Additionally, software, apps, programs, and everything that you have installed or saved on the computer are permanently removed.
If the above steps did not resolve your issue please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region. http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
I would like to thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

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Windows 7: http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c01564223
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