I have a Dell Inspiron PC with Intel 730 graphics. Running Windows, I can select 2560x1440 for my Acer monitor with no problems, other than Windows update installs the latest driver for Intel 730 graphics which does not list 2560x1440 as an available resolution, and it forces me to "downgrade" to an earlier version of the driver which has this capability.
Now, I'm trying Zorin Core, and the max resolution listed is 2048x1152. I have tried to use xrandr to add the higher resolution, but it always fails with a "BadValue" error message. I am assuming that this may be because the current Intel driver in Linux has the same issue as Windows, but I do not know how I would be able to replace that later driver with an older version, which I am hoping will resolve the problem. Any ideas on this?
Yes, exactly, I always recommend doing this!
If its Intel, the driver should be in the kernel. Which means, if the kernel Zorin OS 18 uses, is too new, you may try using an older kernel.
Well shoot me and call me stupid! The solution was to switch to the DisplayPort output instead of HDMI. Apparently, the Intel graphics driver didn't think that HDMI 1.4 would support the higher resolution (but it does!) and thus limited the display resolution with that. However - I just swapped the HDMI cable for the DisplayPort one, and now I have beautiful 2560x1440 display without changing ANYTHING in my Linux distro. It literally booted up with that resolution!
Thanks to those who had some other suggestions, but I think I'll stick with the "hardware" solution.
Yo!
I have a Dell 32" 4K 1MS 144-Hertz gaming monitor, the only option for me IMO, is Display Port. Glad you got it figured out!
That is interesting, often we suggest switching from DisplayPort to HDMI, but good that the alternative works.
Also note there are different types of HDMI cable, some which are uni-directional and some sub-equipped, that cause display problems. Sometimes a change of HDMI cable works.
I had thought of that, but it looks like the actual limitation is in the Intel 730 graphics system itself. I just ordered a DisplayPort cable (I used my daughter's cable to test) and that works for both Windows and Linux, so no worries.
I prefer Display Port over HDMI...
