#HOW TO FIND MAC OS SCREEN RESOLUTION HOW TO#
#HOW TO FIND MAC OS SCREEN RESOLUTION DRIVERS#
#HOW TO FIND MAC OS SCREEN RESOLUTION FULL#
#HOW TO FIND MAC OS SCREEN RESOLUTION PRO#

The way I managed to do it is based on Dan Grove's reply to himself in this same thread, but with more DIY (thanks Dan!).ДЇew things I think are important to understand about EDID files: I've spent the last 4 hours (at least) fixing that issue on macOS Sierra.

#HOW TO FIND MAC OS SCREEN RESOLUTION HOW TO#

I hope this can somehow be helpful to someone - I couldn't find a comprehensive guide about how to solve this problem anywhere (and I've been looking solidly for 2 days+)! If your EDID data isn't being read at all by anything, you'll need to either use another monitor (that broken one won't ever work properly) or have the defective one replaced etc. Also, the location of the Overrides folder has changed in El Capitan, so it's now in /System/Library/Displays/Contents/Resources/Overrides instead of what's mentioned in the forum guide. To do this, you'll need to disable SIP (reboot Mac holding Cmd+R, run 'csrultil disable' via Utilities > Terminal and then reboot and log back in.

If your EDID data isn't corrupted, follow the steps in this excellent tutorial here about how to edit the Overrides in OS X.

rtf file when all three checkboxes are ticked.

Remove the '0x00' (etc.) code from the start of each row and copy the resulting text into The Hex key needs to be in the format that edidreader can read, as otherwise the code won't work for the second half of this tutorial (I made that mistake first time) - the tool should display exactly the same data as what you got in the. rtf file (at the bottom) there should be a Hex table - this is your monitor's EDID data. rtf file (it's in one of the options in the menu bar) and save it to a drive that can be read by Windows and Mac machines.

#HOW TO FIND MAC OS SCREEN RESOLUTION FULL#

Download and run MonitorInfoView.exe from here (some similar applications don't export the full 128 bit hex code you need for the EDID) and select the monitor you need the EDID for - make sure you don't choose the internal screen if you're on a MacBook! Then export the EDID data as a.

Boot into Windows from your Mac if you can (or alternatively plug a Windows machine into the monitor that isn't working properly).A USB drive in FAT32 (doesn't need to be big).Access to a PC running Windows (with same connections as Mac, DVI and VGA have different EDIDs for instance) or Mac via Boot Camp.A Mac/computer running OS X that isn't currently recognising your monitor correctly (duh).Here are the steps I followed (some very basic knowledge of Terminal is necessary for the second half, it's mostly common sense though). In the end, it was a relatively simple fix.

#HOW TO FIND MAC OS SCREEN RESOLUTION DRIVERS#

Where Apple don't develop plug-and-play drivers for monitors (I assume) and hadn't added a profile for mine, it couldn't recognise it. Windows evidently could read the data just fine, which is why it worked perfectly every time. Okay, so I managed to work out what the issue was in the end - it was OS X's handling of the EDID data from the monitor. plist files but that was all for Yosemite, apparently it's different for El Capitan. How can I add 1680x1050 to this list, as presumably that would display clearly? SwitchResX doesn't fix this and neither does RDM, I've seen stuff about editing.

The options for the resolution in Displays all work perfectly (various ones from 800ењ†00 up to 1400x1050 when Alt-Scaled) but then it jumps up to 1920x1080. My monitor (and adaptor) can display 1920x1080 so that would appear to not be the case here. asked before, but they all said it was to do with the resolution being too high. I've seen questions about VGA cables/adaptors etc. On the monitor, it says it's displaying 800ењ†00 when my Mac says it's displaying 1680x1050. However, when I try to use that resolution, my screen looks like this which is clearly not right (it looks impossibly pixellated and really hurts my eyes, you can barely see anything on the screen). The monitor's optimum resolution is 1680x1050 60Hz and RDM shows this as an option.

#HOW TO FIND MAC OS SCREEN RESOLUTION PRO#

I've got a MacBook Pro (Early 2015, OS 10.11.2) and I've also got a Dell 2209WAf monitor, which I'm using with a VGA cable and this adaptor.

How to find mac os screen resolution