参考：
https://www.jianshu.com/p/40cee8ab3d0f
https://www.zhihu.com/question/35300978
在点击ok后，发现并不能保存。或者是保存了。但是最后面显示 not install 重启之后也并无1920*1080的HiDPI出现。
这就要提到我们开头提到的System Integrity Protection SIP”系统完整性”了
我们只需要暂时关闭SIP，再次对软件设置进行保存，1920*1080自然会出现。
处于安全性考虑，关闭SIP设置成功后，建议再次开启SIP，亲测开启后依然能够做到正常使用，开机后自动进入1920*1080模式
终极解决方案：
2560 * 1440 + 开启HiDPI
参考：https://github.com/xzhih/one-key-hidpi/blob/master/README-zh.md
hidpi.sh
#!/bin/bash sipInfo=("$(csrutil status)") systemVersion=($(sw_vers -productVersion | cut -d "." -f 2)) systemLanguage=($(locale | grep LANG | sed s/'LANG='// | tr -d '"' | cut -d "." -f 1)) disableSIP="Need to disable SIP" langRemoteMode="Remote Mode" langLocalMode="Local Mode" langDisplay="Display" langMonitors="Monitors" langIndex="Index" langVendorID="VendorID" langProductID="ProductID" langMonitorName="MonitorName" langChooseDis="Choose the display" langInputChoice="Enter your choice" langEnterError="Enter error, bye" langBackingUp="Backing up..." langEnabled="Enabled, please reboot." langDisabled="Disabled, restart takes effect" langEnabledLog="Rebooting the logo for the first time will become huge, then it will not be." langCustomRes="Enter the HIDPI resolution, separated by a space，like this: 1680x945 1600x900 1440x810" langChooseIcon="Display Icon" langNotChange="Do not change" langEnableOp1="(1) Enable HIDPI" langEnableOp2="(2) Enable HIDPI (with EDID)" langEnableOp3="(3) Disable HIDPI" langChooseRes="resolution config" langChooseResOp1="(1) 1920x1080 Display" langChooseResOp2="(2) 1920x1080 Display (use 1424x802, fix underscaled after sleep)" langChooseResOp3="(3) 1920x1200 Display" langChooseResOp4="(4) 2560x1440 Display" langChooseResOp5="(5) 3000x2000 Display" langChooseResOpCustom="(6) Manual input resolution" if [[ "${systemLanguage}" == "zh_CN" ]]; then disableSIP="需要关闭 SIP" langRemoteMode="远程模式" langLocalMode="本地模式" langDisplay="显示器" langMonitors="显示器" langIndex="序号" langVendorID="供应商ID" langProductID="产品ID" langMonitorName="显示器名称" langChooseDis="选择显示器" langInputChoice="输入你的选择" langEnterError="输入错误，再见了您嘞！" langBackingUp="正在备份(怎么还原请看说明)..." langEnabled="开启成功，重启生效" langDisabled="关闭成功，重启生效" langEnabledLog="首次重启开机logo会变得巨大，之后就不会了" langCustomRes="输入想要开启的 HIDPI 分辨率，用空格隔开，就像这样：1680x945 1600x900 1440x810" langChooseIcon="选择显示器ICON" langNotChange="保持原样" langEnableOp1="(1) 开启HIDPI" langEnableOp2="(2) 开启HIDPI(同时注入EDID)" langEnableOp3="(3) 关闭HIDPI" langChooseRes="选择分辨率配置" langChooseResOp1="(1) 1920x1080 显示屏" langChooseResOp2="(2) 1920x1080 显示屏 (使用 1424x802 分辨率，修复睡眠唤醒后的屏幕缩小问题)" langChooseResOp3="(3) 1920x1200 显示屏" langChooseResOp4="(4) 2560x1440 显示屏" langChooseResOp5="(5) 3000x2000 显示屏" langChooseResOpCustom="(6) 手动输入分辨率" fi downloadHost="https://raw.githubusercontent.com/xzhih/one-key-hidpi/master" # downloadHost="https://raw.githubusercontent.com/xzhih/one-key-hidpi/dev" # downloadHost="http://127.0.0.1:8080" shellDir="$(dirname $0)" if [ -d "${shellDir}/displayIcons" ];then echo $langLocalMode downloadHost="file://${shellDir}" else echo $langRemoteMode fi if [[ "${sipInfo}" == *"Filesystem Protections: disabled"* ]] || [[ "$(awk '{print $5}' <<< "${sipInfo}")" == "disabled." ]] || [[ "$(awk '{print $5}' <<< "${sipInfo}")" == "disabled" ]]; then : else echo "${disableSIP}"; exit 0 fi if [[ "${systemVersion}" -ge "15" ]]; then sudo mount -uw / && killall Finder fi function get_edid() { local index=0 local selection=0 gDisplayInf=($(ioreg -lw0 | grep -i "IODisplayEDID" | sed -e "/[^<]*</s///" -e "s/>//")) if [[ "${#gDisplayInf[@]}" -ge 2 ]]; then # Multi monitors detected. Choose target monitor. echo "" echo " "${langMonitors}" " echo "--------------------------------------------------------" echo " "${langIndex}" | "${langVendorID}" | "${langProductID}" | "${langMonitorName}" " echo "--------------------------------------------------------" # Show monitors. for display in "${gDisplayInf[@]}" do let index++ MonitorName=("$(echo ${display:190:24} | xxd -p -r)") VendorID=${display:16:4} ProductID=${gMonitor:22:2}${gMonitor:20:2} if [[ ${VendorID} == 0610 ]]; then MonitorName="Apple Display" fi if [[ ${VendorID} == 1e6d ]]; then MonitorName="LG Display" fi printf " %d | ${VendorID} | ${ProductID} | ${MonitorName} " ${index} done echo "--------------------------------------------------------" # Let user make a selection. read -p "${langChooseDis}: " selection case $selection in [[:digit:]]* ) # Lower selection (arrays start at zero). if ((selection < 1 || selection > index)); then echo "${langEnterError}"; exit 0 fi let selection-=1 gMonitor=${gDisplayInf[$selection]} ;; * ) echo "${langEnterError}"; exit 0 ;; esac else gMonitor=${gDisplayInf} fi EDID=${gMonitor} VendorID=$((0x${gMonitor:16:4})) ProductID=$((0x${gMonitor:22:2}${gMonitor:20:2})) Vid=($(printf '%x ' ${VendorID})) Pid=($(printf '%x ' ${ProductID})) # echo ${Vid} # echo ${Pid} # echo $EDID } # init function init() { # cat << EEF _ _ _____ _____ _____ _____ | | | | |_ _| | __ | __ |_ _| | |__| | | | | | | | | |__) | | | | __ | | | | | | | | ___/ | | | | | | _| |_ | |__| | | | _| |_ |_| |_| |_____| |_____/ |_| |_____| ============================================ EEF # get_edid thisDir=$(dirname $0) thatDir="/System/Library/Displays/Contents/Resources/Overrides" Overrides="/System/Library/Displays/Contents/Resources/Overrides" DICON="com.apple.cinema-display" imacicon=${Overrides}"/DisplayVendorID-610/DisplayProductID-a032.tiff" mbpicon=${Overrides}"/DisplayVendorID-610/DisplayProductID-a030-e1e1df.tiff" mbicon=${Overrides}"/DisplayVendorID-610/DisplayProductID-a028-9d9da0.tiff" lgicon=${Overrides}"/DisplayVendorID-1e6d/DisplayProductID-5b11.tiff" proxdricon=${Overrides}"/DisplayVendorID-610/DisplayProductID-ae2f\_Landscape.tiff" if [[ ! -d ${thatDir}/HIDPI/backup ]]; then echo "${langBackingUp}" sudo mkdir -p ${thatDir}/HIDPI/backup sudo cp ${thatDir}/Icons.plist ${thatDir}/HIDPI/backup/ if [[ -d ${thatDir}/DisplayVendorID-${Vid} ]]; then sudo cp -r ${thatDir}/DisplayVendorID-${Vid} ${thatDir}/HIDPI/backup/ fi fi generate_restore_cmd } # function generate_restore_cmd() { # rm -rf ${thisDir}/tmp/ mkdir -p ${thisDir}/tmp/ cat > "${thisDir}/tmp/disable" <<-CCC #!/bin/sh function get_edid() { local index=0 local selection=0 gDisplayInf=($(ioreg -lw0 | grep -i "IODisplayEDID" | sed -e "/[^<]*</s///" -e "s/>//")) if [[ "${#gDisplayInf[@]}" -ge 2 ]]; then echo ' Monitors ' echo '------------------------------------' echo ' Index | VendorID | ProductID ' echo '------------------------------------' for display in "${gDisplayInf[@]}" do let index++ printf " %d | ${display:16:4} | ${gMonitor:22:2}${gMonitor:20:2} " $index done echo '------------------------------------' read -p "Choose the display: " selection case $selection in [[:digit:]]* ) if ((selection < 1 || selection > index)); then echo "Enter error, bye"; exit 0 fi let selection-=1 gMonitor=${gDisplayInf[$selection]} ;; * ) echo "Enter error, bye"; exit 0 ;; esac else gMonitor=${gDisplayInf} fi EDID=$gMonitor VendorID=$((0x${gMonitor:16:4})) ProductID=$((0x${gMonitor:22:2}${gMonitor:20:2})) Vid=($(printf '%x ' ${VendorID})) Pid=($(printf '%x ' ${ProductID})) } get_edid if [[ -d ../DisplayVendorID-${Vid} ]]; then rm -rf ../DisplayVendorID-${Vid} fi rm -rf ../Icons.plist cp -r ./backup/* ../ rm -rf ./disable echo "HIDPI Disabled" CCC sudo mv ${thisDir}/tmp/disable ${thatDir}/HIDPI/ sudo chmod +x ${thatDir}/HIDPI/disable } # choose_icon function choose_icon() { # rm -rf ${thisDir}/tmp/ mkdir -p ${thisDir}/tmp/ mkdir -p ${thisDir}/tmp/DisplayVendorID-${Vid} curl -fsSL "${downloadHost}/Icons.plist" -o ${thisDir}/tmp/Icons.plist echo "" echo "-------------------------------------" echo "|********** ${langChooseIcon} ***********|" echo "-------------------------------------" echo "" echo "(1) iMac" echo "(2) MacBook" echo "(3) MacBook Pro" echo "(4) LG ${langDisplay}" echo "(5) Pro Display XDR" echo "(6) ${langNotChange}" echo "" # read -p "${langInputChoice} [1~6]: " logo case ${logo} in 1) Picon=${imacicon} RP=("33" "68" "160" "90") curl -fsSL "${downloadHost}/displayIcons/iMac.icns" -o ${thisDir}/tmp/DisplayVendorID-${Vid}/DisplayProductID-${Pid}.icns ;; 2) Picon=${mbicon} RP=("52" "66" "122" "76") curl -fsSL "${downloadHost}/displayIcons/MacBook.icns" -o ${thisDir}/tmp/DisplayVendorID-${Vid}/DisplayProductID-${Pid}.icns ;; 3) Picon=${mbpicon} RP=("40" "62" "147" "92") curl -fsSL "${downloadHost}/displayIcons/MacBookPro.icns" -o ${thisDir}/tmp/DisplayVendorID-${Vid}/DisplayProductID-${Pid}.icns ;; 4) Picon=${lgicon} RP=("11" "47" "202" "114") cp ${thatDir}/DisplayVendorID-1e6d/DisplayProductID-5b11.icns ${thisDir}/tmp/DisplayVendorID-${Vid}/DisplayProductID-${Pid}.icns ;; 5) Picon=${proxdricon} RP=("5" "45" "216" "121") curl -fsSL "${downloadHost}/displayIcons/ProDisplayXDR.icns" -o ${thisDir}/tmp/DisplayVendorID-${Vid}/DisplayProductID-${Pid}.icns if [[ ! -f ${thatDir}/DisplayVendorID-610/DisplayProductID-ae2f_Landscape.tiff ]]; then curl -fsSL "${downloadHost}/displayIcons/ProDisplayXDR.tiff" -o ${thisDir}/tmp/DisplayVendorID-${Vid}/DisplayProductID-${Pid}.tiff Picon=${Overrides}"/DisplayVendorID-${Vid}/DisplayProductID-${Pid}.tiff" fi ;; 6) rm -rf ${thisDir}/tmp/Icons.plist ;; *) echo "${langEnterError}"; exit 0 ;; esac if [[ ${Picon} ]]; then DICON=${Overrides}"/DisplayVendorID-${Vid}/DisplayProductID-${Pid}.icns" /usr/bin/sed -i "" "s/VID/${Vid}/g" ${thisDir}/tmp/Icons.plist /usr/bin/sed -i "" "s/PID/${Pid}/g" ${thisDir}/tmp/Icons.plist /usr/bin/sed -i "" "s/RPX/${RP[0]}/g" ${thisDir}/tmp/Icons.plist /usr/bin/sed -i "" "s/RPY/${RP[1]}/g" ${thisDir}/tmp/Icons.plist /usr/bin/sed -i "" "s/RPW/${RP[2]}/g" ${thisDir}/tmp/Icons.plist /usr/bin/sed -i "" "s/RPH/${RP[3]}/g" ${thisDir}/tmp/Icons.plist /usr/bin/sed -i "" "s/PICON/${Picon}/g" ${thisDir}/tmp/Icons.plist /usr/bin/sed -i "" "s/DICON/${DICON}/g" ${thisDir}/tmp/Icons.plist fi } # main function main() { sudo mkdir -p ${thisDir}/tmp/DisplayVendorID-${Vid} dpiFile=${thisDir}/tmp/DisplayVendorID-${Vid}/DisplayProductID-${Pid} sudo chmod -R 777 ${thisDir}/tmp/ # cat > "${dpiFile}" <<-CCC <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>DisplayProductID</key> <integer>PID</integer> <key>DisplayVendorID</key> <integer>VID</integer> <key>IODisplayEDID</key> <data>EDid</data> <key>scale-resolutions</key> <array> CCC echo "" echo "------------------------------------------" echo "|********** "${langChooseRes}" ***********|" echo "------------------------------------------" echo ${langChooseResOp1} echo ${langChooseResOp2} echo ${langChooseResOp3} echo ${langChooseResOp4} echo ${langChooseResOp5} echo ${langChooseResOpCustom} echo "" # read -p "${langInputChoice}: " res case ${res} in 1 ) create_res_1 1680x945 1440x810 1280x720 1024x576 create_res_2 1280x800 1280x720 960x600 960x540 640x360 create_res_3 840x472 800x450 720x405 640x360 576x324 512x288 420x234 400x225 320x180 create_res_4 1680x945 1440x810 1280x720 1024x576 960x540 840x472 800x450 640x360 ;; 2 ) create_res_1 1680x945 1424x802 1280x720 1024x576 create_res_2 1280x800 1280x720 960x600 960x540 640x360 create_res_3 840x472 800x450 720x405 640x360 576x324 512x288 420x234 400x225 320x180 create_res_4 1680x945 1440x810 1280x720 1024x576 960x540 840x472 800x450 640x360 ;; 3 ) create_res_1 1680x1050 1440x900 1280x800 1024x640 create_res_2 1280x800 1280x720 960x600 960x540 640x360 create_res_3 840x472 800x450 720x405 640x360 576x324 512x288 420x234 400x225 320x180 create_res_4 1680x1050 1440x900 1280x800 1024x640 960x540 840x472 800x450 640x360 ;; 4 ) create_res_1 2560x1440 2048x1152 1920x1080 1760x990 1680x945 1440x810 1360x765 1280x720 create_res_2 1360x765 1280x800 1280x720 1024x576 960x600 960x540 640x360 create_res_3 960x540 840x472 800x450 720x405 640x360 576x324 512x288 420x234 400x225 320x180 create_res_4 2048x1152 1920x1080 1680x945 1440x810 1280x720 1024x576 960x540 840x472 800x450 640x360 ;; 5 ) create_res_1 3000x2000 2880x1920 2250x1500 1920x1280 1680x1050 1440x900 1280x800 1024x640 create_res_2 1280x800 1280x720 960x600 960x540 640x360 create_res_3 840x472 800x450 720x405 640x360 576x324 512x288 420x234 400x225 320x180 create_res_4 1920x1280 1680x1050 1440x900 1280x800 1024x640 960x540 840x472 800x450 640x360 ;; 6 ) custom_res create_res_2 1360x765 1280x800 1280x720 960x600 960x540 640x360 create_res_3 840x472 800x450 720x405 640x360 576x324 512x288 420x234 400x225 320x180 create_res_4 1680x945 1440x810 1280x720 1024x576 960x540 840x472 800x450 640x360 ;; *) echo "${langEnterError}"; exit 0 ;; esac cat >> "${dpiFile}" <<-FFF </array> <key>target-default-ppmm</key> <real>10.0699301</real> </dict> </plist> FFF /usr/bin/sed -i "" "s/VID/$VendorID/g" ${dpiFile} /usr/bin/sed -i "" "s/PID/$ProductID/g" ${dpiFile} } # end function end() { sudo chown -R root:wheel ${thisDir}/tmp/ sudo chmod -R 0755 ${thisDir}/tmp/ sudo chmod 0644 ${thisDir}/tmp/DisplayVendorID-${Vid}/* sudo cp -r ${thisDir}/tmp/* ${thatDir}/ sudo rm -rf ${thisDir}/tmp sudo defaults write /Library/Preferences/com.apple.windowserver DisplayResolutionEnabled -bool YES echo "${langEnabled}" echo "${langEnabledLog}" } # custom resolution function custom_res() { echo "${langCustomRes}" read -p ":" res create_res ${res} } # create resolution function create_res() { for res in $@; do width=$(echo ${res} | cut -d x -f 1) height=$(echo ${res} | cut -d x -f 2) hidpi=$(printf '%08x %08x' $((${width}*2)) $((${height}*2)) | xxd -r -p | base64) # cat << OOO >> ${dpiFile} <data>${hidpi:0:11}AAAAB</data> <data>${hidpi:0:11}AAAABACAAAA==</data> OOO done } function create_res_1() { for res in $@; do width=$(echo ${res} | cut -d x -f 1) height=$(echo ${res} | cut -d x -f 2) hidpi=$(printf '%08x %08x' $((${width}*2)) $((${height}*2)) | xxd -r -p | base64) # cat << OOO >> ${dpiFile} <data>${hidpi:0:11}A</data> OOO done } function create_res_2() { for res in $@; do width=$(echo ${res} | cut -d x -f 1) height=$(echo ${res} | cut -d x -f 2) hidpi=$(printf '%08x %08x' $((${width}*2)) $((${height}*2)) | xxd -r -p | base64) # cat << OOO >> ${dpiFile} <data>${hidpi:0:11}AAAABACAAAA==</data> OOO done } function create_res_3() { for res in $@; do width=$(echo ${res} | cut -d x -f 1) height=$(echo ${res} | cut -d x -f 2) hidpi=$(printf '%08x %08x' $((${width}*2)) $((${height}*2)) | xxd -r -p | base64) # cat << OOO >> ${dpiFile} <data>${hidpi:0:11}AAAAB</data> OOO done } function create_res_4() { for res in $@; do width=$(echo ${res} | cut -d x -f 1) height=$(echo ${res} | cut -d x -f 2) hidpi=$(printf '%08x %08x' $((${width}*2)) $((${height}*2)) | xxd -r -p | base64) # cat << OOO >> ${dpiFile} <data>${hidpi:0:11}AAAAJAKAAAA==</data> OOO done } # enable function enable_hidpi() { choose_icon main sed -i "" "/.*IODisplayEDID/d" ${dpiFile} sed -i "" "/.*EDid/d" ${dpiFile} end } # patch function enable_hidpi_with_patch() { choose_icon main version=${EDID:38:2} basicparams=${EDID:40:2} checksum=${EDID:254:2} newchecksum=$(printf '%x' $((0x${checksum} + 0x${version} +0x${basicparams} - 0x04 - 0x90)) | tail -c 2) newedid=${EDID:0:38}0490${EDID:42:6}e6${EDID:50:204}${newchecksum} EDid=$(printf ${newedid} | xxd -r -p | base64) /usr/bin/sed -i "" "s:EDid:${EDid}:g" ${dpiFile} end } # disable function disable() { if [[ -d ${thatDir}/DisplayVendorID-${Vid} ]]; then sudo rm -rf ${thatDir}/DisplayVendorID-${Vid} fi sudo rm -rf ${thatDir}/Icons.plist sudo cp -r ${thatDir}/HIDPI/backup/* ${thatDir}/ sudo rm -rf ${thatDir}/HIDPI/disable echo "${langDisabled}" } # function start() { init echo "" echo ${langEnableOp1} echo ${langEnableOp2} echo ${langEnableOp3} echo "" # read -p "${langInputChoice} [1~3]: " input case ${input} in 1) enable_hidpi ;; 2) enable_hidpi_with_patch ;; 3) disable ;; *) echo "${langEnterError}"; exit 0 ;; esac } start
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