How do I get 2560x1440 resolution over HDMI

[OCTH]

Computer: Lenovo Y580

External Monitor: ASUS PB278q

Intel Adapter: Intel(R) HD Graphics 4000

Driver Version: 8.17.12.9555

I am trying to get 2560x1440 graphics to be broadcast to my external monitor over HDMI

When I try to create a custom resolution in the Graphics Control Panel one of three things happens.

1. I get a message saying that the resolution I am trying to create isn't possible

2. I create the custom resolution, however when I try to adjust it in the Screen Resolution menu Windows tells me that it can't broadcast the resolution.

3. The resolution broadcasts, but it is terrible quality, and looks like it is vibrating.

*Note: I had this setup previously, but I had to reinstall Windows recently, downgrading from Windows 8 to Windows 7, and now I can't get it to work, so maybe this community could help.

[Allan_J_Intel1]

Thanks for joining the graphics community.

I understand you are trying to get 2560*1440 screen resolution.

Please bear in mind that your graphics controller can handle up to 2560 x 1600. This is possible if the graphics video BIOS is not locked by your computer manufacturer.

Try the following steps:

You need to make sure that you install the latest monitor firmware or monitor drivers.

Update computer BIOS, this will interact with graphics video BIOS:

http://support.lenovo.com/en_US/research/hints-or-tips/detail.page?&DocID=HT073649 http://support.lenovo.com/en_US/research/hints-or-tips/detail.page?&DocID=HT073649

Download the latest video drivers for your graphics controller here:

https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=3712&DwnldID=23714&ProductFamily=Graphics&ProductLine=Laptop+graphics+drivers&ProductProduct=3rd+Generation+Intel%C2%AE+Core%E2%84%A2+Processors+with+Intel%C2%AE+HD+Graphics+4000&lang=eng https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=3712&DwnldID=23714&ProductFamily=Graphics&ProductLine=Laptop+graphics+drivers&ProductProduct=3rd+Generation+Intel%C2%AE+Core%E2%84%A2+Processors+with+Intel%C2%AE+HD+Graphics+4000&lang=eng

Allan.

[OCTH]

It still says that I am "exceeding maximum bandwidth capacity"

[OCTH]

GUYS, I have succeeded, I had to get an old driver and use CTV-RB, and had to use 50Hz, but I have my old 2560x1440 back, and it is oh so glorious. So ends a nearly 3 day saga of pain.

[Allan_J_Intel1]

Thanks for testing and posting your results.

Allan