Immediately the monitor jumped to its native resolution, problem solved. In complete frustration I disconnected the displayport cable to check for dust and tried reconnecting it.
#Dell u2312hm monitor driver
I tried this again and again with various driver versions with no effect.
#Dell u2312hm monitor drivers
I uninstalled the graphics drivers and installed the latest nVidia drivers, but thisĭid not solve the problem. I tried powering down and restarting both the laptop and the monitor several times with no improvement. The advanced display settings screen in windows 10 listed 640x480Īs the ONLY display resolution possible for the monitor. I also this problem only a few days after installing windows 10 where my 24" monitors resolution was downgraded to 640X480 with no way in windows to set it back to native resolution. So I guess while updating from Win7 to Win10, the DisplayPort and/or the U2412M was just stuck in some weird state that its just stuck at 640x480, and only unplug/replug the DisplayPort can allow the display protocol to be re-established correctly. Of uninstall/re-install of the graphic card driver (I'm using Raedon HD 6850 in my pc), and many many system restart, the resolution was still stuck at 640x480.And AMD Crystal Control Center still reported detecting only "unknown" display.įinally I saw your post and solve the issue by just unplug and replug the Displayport cable behind my pc! Everything is back to normal with U2412M running at native 1920x1200!!! Once I updated to Windows 10, the resolution became restricted to 640x480 only, and despite all the trails I have my computer connected to the the U2412M via DisplayPort, running Windows 7 originally, and all was nice with resolution at native 1920x1200. Yes! i have the exact same thing happening to me. I've submit this thread by using Internet Explorer.