900
people found this helpful, as of 2023
ranked #12,678 most helpful
out of 571,544,897 reviews
★★★★★
Total breakthrough for linux programmers.
Ok. I got this in the mail today and wasn't sure if it would work with my hp dv7 laptop with an intel hd3000 graphics card (HDMI only out). When I first opened and connected to this monitor the resolution defaulted to a maximum of 1920x1080 @ 24 Hz. It was pretty sharp but the last TV I had was just as sharp at that resolution.
So I spent all day working with different modelines to try to manually get the resolutin right. The monitor was impressive and would display all kinds of modes between 1920x1080 and 3840x2160. BUT. They were all kind of blurry and would not have worked to program all day on.
Well after about 4 hours of working with random timings and resolutions I thought I would try xrandr with the 3840x2160 modes untill I found one that very closely matched an hsync of 30. I found the closest line that I could get to 30hz was:
root@dv7# cvt 3840 2160 13.8
# 3840x2160 13.79 Hz (CVT) hsync: 30.05 kHz; pclk: 144.25 MHz
Modeline "3840x2160_13.80" 144.25 3840 3944 4320 4800 2160 2163 2168 2180 -hsync +vsync
I guess you could find something closer but that was close enough. So I ran:
xrandr --newmode "3840x2160_13.80" 144.25 3840 3944 4320 4800 2160 2163 2168 2180 -hsync +vsync
xrandr --addmode HDMI1 "3840x2160_13.80"
Those make it so you can select it in the Displays or monitors section depending on your distribution (make sure you have the right HDMI port by running xrandr without any arguments).
If you don't know where the monitors section is you can run (leave off the quotes):
xrandr --output HDMI1 --mode 3840x2160_13.80
Anyway after I ran that and the monitor came back from being black... BAM! Super high definition and huge display! I was so happy I cried a little. Not a pixel is bad and text is so sharp it is like sitting in front of 4 monitors!
I cannot think of anything I have ever bought that deserved all 5 stars any more than this product.
My monitor prayers have been answered.
You can feel safe with the purchase. (I purchased it from Amazon fulfillment)
This has made my year.
May 2013 · Electronics · verified purchase