07-21-2013 09:03 AM
It's hard to get the symptoms completely localized, but in general if I attach an HDMI device (my TV), it is not recognized. If I reboot with the HDMI device attached, it is recognized. At least for a while after that I can disconnect and reconnect the HDMI device and it will be recognized.
Win 7 Pro, 64 bit. All updates present.
Solved! Go to Solution.
07-24-2013 11:14 AM
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According to the HDMI Interface Technology It should be supporting "Hot-Plug" where any point in OS it should connect/detect without needing restart given that the cable is not defective,
You may try Downloading another Driver for your Graphics as this is what communicates with the TV,
Uninstall your driver frist by Going to Device Manager,
Open the display Adapter Category and look for the Intel HD Graphics, Rightclick on it and hit Uninstall,
Place a check on the box with "delete driver software for this device"
a restart might be needed after uninstallation
Now Download the driver hereand install it
Restart after installation and try the connection again,
Hope this helps,
08-06-2013 08:33 PM
a couple of problems with this suggestion:
1. When I uninstalled the driver, the screen went black. I had to do a hard reset to be able to see anything.
2. When I tried to installed the referenced driver, I got a message that my hardware was insufficient or something like that.
I did not check the delete driver box, which is a good thing - otherwise I would have been left with no driver.
After all that failed, I tried updating the driver. It did a long download, then an update. After reboot, the driver version number was exactly the same.
Haven't had a chance to try hot-plug with an HDMI screen.
08-09-2013 07:58 PM
Tried to hot-plug an HDMI monitor and it's not recognized. The laptop doesn't seem to see anything being connected.
The driver, for what it's worth, is 220.127.116.1132.
I thought perhaps the nvidia driver might be interfering somehow, so I disabled it. No change.
It's not the connector itself, since the system will recognize an HDMI device at boot. And it worked until a few months ago - no idea what change broke it.
Any other thoughts?
08-25-2013 11:22 AM
Other forums focused on Intel drivers suggest it's a problem with a new driver. I rolled back to the original driver I had when I installed Win7 and it works again.