1440p monitor not recognized by HD 630 graphics

[LLini]

Hello folks,

I built a new PC over the holiday break with an ASROCK H270M-ITX/ac motherboard and an i5-7500 CPU with Intel 630 graphics.

I have a QHD monitor (2560 x 1440) that uses a DVI-D connection and when I start the PC I get test patterns on the monitor (flashing red, green, blue, and white-line patterns), then it just goes dark. The PC does display correctly on a standard 1080p TV, but just not this monitor.

I have tried everything I can think of including:

• Installing the latest ASROCK VGA drivers (and even some beta versions)
• Installing the INF chipset driver
• Plugging the monitor into all three ports of the motherboard (it has two HDMI ports and a DVI port). I'm using a HDMI to DVI adapter when I'm connecting to HDMI on the motherboard.
• Installed various versions of the Intel HD graphics drivers
• If I go into the Intel graphics control panel and select extended desktop, the monitor is selectable (so it's recognized to some extent, but after I apply settings for extended desktop, the monitor stays dark).

Attached are the reports from the control panel and also the System Support Utility report. I've been troubleshooting this for days but am at a loss. This monitor works great with my previous PC build, so I know it's a not a bad monitor.

Greatly appreciate any thoughts!

[Stefan3D]

Can you name the exact model of the monitor?

I'm surprised it worked on your previous build as Intel claims:

DVI max resolution is 1920x1200 @ 60 Hz

source: https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/7th-gen-core-family-desktop-s-processor-lines-datasheet-vol-1.pdf https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/7th-gen-core-family-desktop-s-processor-lines-da…

Also your new motherboard's manual reads:

Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz

http://asrock.pc.cdn.bitgravity.com/Manual/H270M-ITXac.pdf http://asrock.pc.cdn.bitgravity.com/Manual/H270M-ITXac.pdf

[LLini]

The monitor is a QNIX model QX2710LED.

Good point on the motherboard manual, although the manual also says that up to full 4K resolution can be output on the HDMI ports. So I was hoping if I connected the monitor to an HDMI port with an HDMI to DVI-D adapter that it would work, but no luck.

Was trying to avoid buying a dedicated graphics card, but I may be stuck doing that.