How to get native screen resolution with Intel Z370 Exress Chipset

I assembled a new computer with the following configuration.

• Intel i7 8700K
• Gigabyte Z370M D3H motherboard (Intel Z370 express chipset)

When I boot windows, I am getting a native resolution of 1920X1080. But in ubuntu, I am getting only 1024X768. I am using an Acer monitor connected via VGA using a HDMI VGA converter.

I have tried all possible solutions discussed online, with xrandr etc. But no luck so far. xrandr is detecting the display as just default.

I am running Ubuntu 17.07 with kernel 4.13.0.

Any idea how to proceed with this?

According to a review by Phoronix of Intel UHD Graphics 630 on Linux a kernel 4.13 or newer and the kernel commandline switch i915.alpha_support=1 are required to enable the graphics drivers.

According to Phoronix: "That will change with the Linux 4.15 kernel where Coffeelake/UHD Graphics are enabled unconditionally."

However, on a PC with an ASUS ROG Strix Z370-E Gaming mainboard and Intel Core i5-8400 CPU Linux kernel 4.13 from linux-image-4.13.0-16-generic in conjunction with i915.alpha_support=1 did not help. Installing a Linux kernel 4.15 rc6 from http://kernel.ubuntu.com/~kernel-ppa/mainline/ provided the high screen resolutions.

(We haven't tried other kernels.)

I had the same problem with Ubuntu 17.10 and asus z370-h motherboard.

I solve this by installing Ubuntu 16.04.
Why 16.04? because I needed to install Intel Graphics Update Tool for Linux* OS v2.0.2 which is not supported in 17.10. Once you install this tool, you can update the Intel drivers but this is not all. I had to update the Linux kernel. You can do it this way:

To check the actual kernel version type in a terminal: uname -sr

1. In the terminal, download the last and stable files:

   wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14.8/linux-headers-4.14.8-041408_4.14.8-041408.201712200555_all.deb wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14.8/linux-headers-4.14.8-041408-generic_4.14.8-041408.201712200555_amd64.deb wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14.8/linux-image-4.14.8-041408-generic_4.14.8-041408.201712200555_amd64.deb

2. Now execute sudo dpkg -i *.deb

3. sudo reboot
4. Check again the new version of kernel uname -sr

I hope this help