Snowy screen on HD 4600

[MacGal]

I'm using the HD 4600 graphics on a Gigabyte GA-Z87-D3HP with an I5-4440. Machine will work perfectly for days, sometimes less, then fails into a staticy old-time analog TV-looking screen ("snow"). System is Mavericks 10.9.1 and displays via DVI. Problem is always resolved by a restart… at least so far. Does anyone have any ideas as to what this is or how to fix it? Thanks!!

 

[Adrian B]

I'm using the HD 4600 graphics on a Gigabyte GA-Z87-D3HP with an I5-4440. Machine will work perfectly for days, sometimes less, then fails into a staticy old-time analog TV-looking screen ("snow"). System is Mavericks 10.9.1 and displays via DVI. Problem is always resolved by a restart… at least so far. Does anyone have any ideas as to what this is or how to fix it? Thanks!!

This does appear to happen sometimes. The cure is to add a GPU.

When it happens on my GA-H87-HD3 and i5-4440 build I normally just power the monitor off/on two or three times and the picture returns to normal once the screen and Intel graphics have re-synced with each other. I use DVI-D connection but it could also happen with HDMI.

 

[MacGal]

Thanks for the suggestion! It took weeks to happen again, but it just did... and unfortunately the monitor toggling didn't help. I'm hoping to not have to lay out $50 for a GPU; are there any other options?

 

[tonymacx86]

Try using an alternate platform id:

type this at boot screen

IGPlatformID=04160000

And if you like the results add to your /Extra/org.chameleon.Boot.plist as

<key>IGPlatformID</key>
<string>04160000</string>

http://www.tonymacx86.com/graphics/...lags-igpenabler-igplatformid-igpdeviceid.html