Optiplex 790 Resolution Issue

Question

My Optiplex 790 resolution is 1366x768, no other option listed for 'Display resolution'My monitor Display is 1920x1080. Works fine with my Optiplex 3010.It is updated with the latest drivers.What can I do or upgrade the resolution to 1920x1080?My System InfoSystem Model OptiPlex 790System Type x64-based PCSystem SKU Processor Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz, 3300 Mhz, 2 Core(s), 4 Logical Processor(s)BIOS Version/Date Dell Inc. A22, 7/3/2018SMBIOS Version 2.6Embedded Controller Version 255.255BIOS Mode LegacyBaseBoard Manufacturer Dell Inc.BaseBoard Product 0J3C2FBaseBoard Version A02Installed Physical Memory (RAM) 4.00 GBTotal Physical Memory 3.88 GBAvailable Physical Memory 566 MBTotal Virtual Memory 8.13 GBAvailable Virtual Memory 3.69 GBPage File Space 4.25 GB

redxps630 · Accepted Answer

Try use the onboard DP video port instead of VGA.  If does not work, install a simple video card.

RothSovath · Accepted Answer

My monitor only have VGA, looks like I'll have to get a video card. Thank you!

BlackDiamondMemory · Accepted Answer

You can also try to update the video card driver. That might work.

RothSovath · Accepted Answer

Intel(R) HD Graphics Driver was the issue, once disabled, "Display resolution" is back to normal.

Now the problem is, My CapCut video editor requires to enable the Graphics driver, so I enable the driver and the resolution issue is back. The only way I can avoid Intel(R) HD Graphics Driver is to roll back to previous installed driver which is Microsoft Basic Display Adapter, now everything is working fine for the moment, hoping that Intel(R) HD Graphics Driver won't auto update.

RothSovath · Answer

@BlackDiamondMemory​ Yes I've tried that already, still the same. Thanks!

RothSovath · Answer

@redxps630​ It's Intel HD Graphics drivers that's causing the problem, I uninstall Intel driver and I was able to select my preferred resolution, but in just a moment the Intel driver was installed automatically, so I disable Intel driver and now I'm able to select my resolution again. This seems odd though,  what do you think?

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