Asus Zenbook UX31A (or any Intel HD4000/HDMI graphics) Black Screen in Windows 8 workaround (should work for Windows 7)

This is Part 1 of a two part article – only separated to make it easier for those with this particular problem to search for this.

This is a very niche article, I grant you, but of you are reading it, chances are, you have this problem and while my experience is specifically with the Asus Zenbook UX31A, searching the internet reveals that it seems to be a common and generic problem with Intel HD4000 graphics.

The Problem:

Randomly (it’s not reliably reproducible) you boot your PC or return from sleep or hibernation and you are presented with just a black screen. Hitting the power button for a hard reboot doesn’t help, you just get booted back up into a black screen.

The Explanation:

I am indebted to Seth Eliot for pointing out, that when you have a black screen, this is normally because the PC is outputting a display on the (micro) HDMI port – even though you don’t have a screen connected to the HDMI port. Worse than that, the HD4000 graphics seem to have made your non-existent HDMI monitor the default display.

The Workaround:

Press the Windows Key and “P” together, followed by tapping the Up Arrow twice. This should select the projection screen dialogue (try it on your PC BEFORE you have this problem to simulate the action) and two presses should select “PC Screen only” and bring Windows back to your PC screen.

And if that doesn’t work?

Well, you could try turning it off and then back on again …….

Note: This is NOT a fix for the BLUE screen login problem – where you have the blue Windows login screen but no user/password box to allow you to login. I haven’t the faintest idea how to fix that!

Asus Zenbook UX31A (or any Intel HD4000/HDMI graphics) fix for no HDMI output to an external monitor in Windows 8 (should work for Windows 7)

This is Part 2 of a two part article – only separated to make it easier for those with this particular problem to search for this.

This is a very niche article, I grant you, but of you are reading it, chances are, you have this problem – and while my experience is specifically with the Asus Zenbook UX31A, searching the internet reveals that it seems to be a common and generic problem with Intel HD4000 graphics and HDMI output to an external monitor.

The Problem:

The internet is awash with folk having problems getting any output from the micro-HDMI port on their Intel HD4000 graphics chipset PC’s – and this includes the Asus Zenbook UX31A, as this thread on the Intel Community site attests.

I have the problem myself, in that I found it impossible to drive a Dell monitor in extended mode via the micro-HDMI (most Zenbook UX31A users would use the micro VGA dongle – so wouldn’t come across this problem, but those who, ahem, have lost their VGA dongle are now forced to go the micro-HDMI route….).

I am therefore indebted to Cognus who has written this article over at Eightforums, which seems to suggest that the problem is fundamentally due to a chipset design error in the way Intel implements HDCP and it is probably not possible to fix it via a driver update. This has enabled me (via trial and error) to develop a repeatable process which will, if a little inelegant, drive an external monitor via (micro) HDMI.

The (temporary) fix:

Presuming that the screen is working on your Intel HD4000 laptop, here are some pictures of the technique I use to get the micro HDMI to output to an external monitor:

1. In Windows Device Manager, right click Intel® HD Graphics 4000, select “Properties” and then select the “Driver” tab:

2. Click the “Uninstall” button and be sure to select the “Delete the driver software for this device” checkbox:

3. You will then see that your display device completely disappears from the list of devices:

4. Select the top item in the device list (which will have the name of your PC) and in the Action drop-down, select “Scan for hardware changes”:

5. At this point, there will be a bit of screen flashing and your external (micro) HDMI monitor should spring into life. You will also note that Windows has detected your HD4000 graphics display, but has installed its default driver:

6. Keep the faith, because very quickly, Windows seems to decide that that is not the right driver, and automatically installs Intel driver version 9.17.10.2932:

7. Hit “Restart later” – because you are going to need to repeat this process every time you can’t get an external monitor to work via HDMI – so there is no point in restarting and putting you back to square one:

Of course, if anyone has a better process (I have tried the latest Intel V9.17.10.2875.01 video drivers – and it doesn’t make any difference) please do comment.