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.#Disabling System Integrity Protection (SIP) If you are running OSX 10.11 or higher, SIP must be disabled.
For more information, including download links, vist. #SwitchResX Settings for LG 21:9 UltraWide SwitchResX is a utility that allows users to override the default resolution settings in OSX. If you need higher resolution then you can't use HDMI. HDMI on Macs will only do a max of 1920x1080.
How Could I Or Could You Add A Resolution 2560x1080 For Mac Pro.When I first read this question, I assumed the OP was hoping for an answer from a user who actually had a 2012 MacBook Pro connected to a ultra wide monitor. So, the best I can offer is an answer based on internet searching. (I assume the OP already did this before posted the question, but I may have come to a different conclusion.)Īctually, a similar question was asked over 6 years ago. Ironically, a bounty was offered for this question and no answer was accepted.īasically, you should be able to get a monitor with an ultra wide resolution of 2560x1080 ( WFHD) to work with any 2012 MacBook Pro, but this probably will require modifying macOS. One such tool for making modifications is SwitchResX. This product requires System Integrity Protect (SIP) to be turned off in order for SwitchResX to modify macOS. Once modifications are complete, SIP can be turned back on. Below is an excerpt from the answer to the SwitchResX webpage FAQ: "I can't get my wide screen monitor to show its native resolution on my Mac". This question is valid for getting wide screen resolutions on older Macs. Your Mac has limits in the resolutions it can send to the monitor and the monitor has limits in the resolutions it can show from the Mac. The monitor communicate with the Mac and sends it a list of predefined resolutions it wants to get. Your Mac does or doesn’t activate each of these resolutions depending on its own capabilities.įor example, the monitor will send 1920x1080 at 60Hz as well as 2560x1080 at 60Hz as its wanted resolutions. If 2560x1080 at 60Hz doesn’t fit the Mac’s capabilities, then the Mac will only activate 1920x1080 at 60Hz. In this case, there's no other predefined resolution claimed by the monitor that fits inside the Mac's limits. One of the limitations of most Macs before 2014 when using a DisplayPort output is a resolution bandwidth of 165 MHz. With SwitchResX, you could define new resolutions that fit inside the monitors and the Mac’s limits, but that are not natively claimed by the monitor. You can define 2560x1080 at 50Hz for example, which is a resolution that fits in the standard limitation of 165 MHz for the bandwidth. Most of the times, a good monitor can handle this lower frequency. SwitchResX will help the Mac and the monitor into finding a resolution that matches their capabilities and is better than the only 1920x1080 resolution that you now have. This will for example allow to define 2560x1080 in 50Hz, which will remain under the 165 MHz limit.
If there's no resolution that fits in both your Mac and your monitor's limits, these limits have no common space.