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#Switchresx starlogic monitor drivers#

Can even do 60Hz vs the reduced amount that was required to get SwitchResX working on High Sierra. Then I tried switching from HDMI to Display Port and now everything works fine on my old MBP without SwitchResX.

#Switchresx starlogic monitor drivers#

I reached out to the developer and he helped me troubleshoot but was ultimately told that the video drivers in Catalina had a restriction that was not in the previous OS and there was nothing that could be done, my machine just could no longer support 2560 x 1080. I tried all of the solutions above: uninstall and reinstall as a new user, update using EDID, renaming the relocated items file, etc. When I upgraded to Catalina SwitchResX no longer worked and I received the "Not activated - invalid?" message. I was using SwitchResX to display 2560 x 1080 on High Sierra without issue. Thought I should share in case anyone has the same issue I did.

Close SwitchResX and save when prompted.Īfter following these steps, you should be able to adjust the resolution of your external monitor through the 'Display' window in System Preferences.

Adjust the settings to match the appropriate PNG provided in this gist.

Add a new custom resolution be clicking the + symbol at the bottom of the window.

After launching SwitchResX, select the external monitor from the list on the left.

Once in recovery mode, open a terminal window.

Boot into the recovery partition by pressing CMD + R when starting up your Mac.

If you are running OSX 10.11 or higher, SIP must be disabled. #Disabling System Integrity Protection (SIP) For more information, including download links, vist. SwitchResX is a utility that allows users to override the default resolution settings in OSX. #SwitchResX Settings for LG 21:9 UltraWide