일반 타이밍 공식(GTF)은 영상 장치 표준 협회(VESA) 표준이며, 리눅스의 gtf 또는 cvt 유틸리티로 쉽게 계산할 수 있습니다.

# gtf 1024 768 60 -x

 # 1024x768 @ 60.00 Hz (GTF) hsync: 47.70 kHz; pclk: 64.11 MHz
   Modeline "1024x768_60.00"  64.11  1024 1080 1184 1344  768 769 772 795  -HSync +Vsync

# gtf 1920 1080 60 -v

 1: [V FIELD RATE RQD]         :       60.000000
 2: [H PIXELS RND]             :     1920.000000
 2.5: [ASPECT_RATIO]           :       16:9
 2.5: [V SYNC]                 :        5.000000
 3: [LEFT MARGIN (PIXELS)]     :        0.000000
 3: [RIGHT MARGIN (PIXELS)]    :        0.000000
 4: [TOTAL ACTIVE PIXELS]      :     1920.000000
 5: [V LINES RND]              :     1080.000000
 6: [TOP MARGIN (LINES)]       :        0.000000
 6: [BOT MARGIN (LINES)]       :        0.000000
 7: [INTERLACE]                :        0.000000
 8: [H PERIOD EST]             :       14.881503
 9: [Actual V_SYNC_BP]         :       36.958633
 9: [Estimated V_SYNC_BP]      :       37.000000
 9: [V_SYNC_BP]                :       37.000000
10: [Back porch]               :       32.000000
11: [TOTAL V LINES]            :     1120.000000
12: [IDEAL DUTY CYCLE]         :       25.535549
13: [H BLANK]                  :      656.000000
14: [TOTAL PIXELS]             :     2576.000000
15: [Non-rounded PIXEL FREQ]   :      173.100800
15: [ACT PIXEL FREQ]           :      173.000000
16: [ACT H FREQ]               :       67.158386
17: [ACT FIELD RATE]           :       59.962841
18: [ACT FRAME RATE]           :       59.962841
20: [H BACK PORCH]             :      328.000000
21: [H SYNC RND]               :      200.000000
22: [H FRONT PORCH]            :      128.000000
23: [V FRONT PORCH]            :        3.000000

  # 1920x1080 @ 60.00 Hz (CVT)
  #   field rate 59.96 Hz; hsync: 67.16 kHz; pclk: 173.00 MHz
  Modeline "1920x1080_60.00"  173.00  1920 2048 2248 2576  1080 1083 1088 1120 -HSync +Vsync