black screen on monitor using hdmi with intel hd4000

[Jco1]

I'm banging my head for two weeks now , trying to find a solution for this issue.

After reading the posts here, i see that I'm not the only one having it.

my laptop is Lenovo S440, comes with switchable graphics (amd+intel hd)

when i connect a monitor using hdmi cable to the hdmi port i get a black screen on the monitor.

seems like the monitor get some signal from the laptop, but it stays black.

installing latest driver from lenovo or intel site didn't work as well as trying to upgrade the amd drivers.

also, i've disabled the switchable graphics from bios, to make sure only intel graphics are used - still the same black screen.

also trying to use different cable and monitor - still the same.

is there any cure for this ???al

[Kevin_M_Intel]

Hi joshco,

I completely understand your frustration on this situation but let me help you as much as possible.

I see you have done several troubleshooting steps but I would like to verify some more information about your system so, can you please post your dxdiag report here?

[Jco1]

Solved!

for others - i have changed the lcd monitor to a different one with HDMI port.

also changed the cable - HDMI to HDMI.

its now working fine .

seems like the intel graphics card has issues with the signal coming from DVI, so use HDMI instead.

[Kevin_M_Intel]

Thank you for sharing the details with us. I am sure this will be very helpful for other customers facing the same problem.