$ sudo get-edid | parse-edid 
This is read-edid version 3.0.1. Prepare for some fun.                                                                              
Attempting to use i2c interface                                                                                                     
Looks like no busses have an EDID. Sorry!                                                                                             
Attempting to use the classical VBE interface                                                                                         
                                                                                                                                      
        Performing real mode VBE call                                                                                                   
        Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0                                                                                           
        Function supported                                                                                                               
        Call successful                                                                                                                   
                                                                                                                                           
        VBE version 300                                                                                                                     
        VBE string at 0x11100 "Intel(R) Sandybridge/Ivybridge Graphics Chipset Accelerated VGA BIOS"                                        
                                                                                                                                             
VBE/DDC service about to be called                                                                                                           
        Report DDC capabilities                                                                                                                
                                                                                                                                                
        Performing real mode VBE call                                                                                                           
        Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0                                                                                                   
        Function supported                                                                                                                       
        Call successful                                                                                                                           
                                                                                                                                                  
        Monitor and video card combination does not support DDC1 transfers                                                                          
        Monitor and video card combination supports DDC2 transfers                                                                                  
        0 seconds per 128 byte EDID block transfer                                                                                                  
        Screen is not blanked during DDC transfer                                                                                                     
                                                                                                                                                      
Reading next EDID block                                                                                                                               
                                                                                                                                                         
VBE/DDC service about to be called                                                                                                                       
        Read EDID                                                                                                                                          
                                                                                                                                                             
        Performing real mode VBE call                                                                                                                        
        Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0                                                                                                                 
        Function supported                                                                                                                                        
        Call successful                                                                                                                                           
                                                                                                                                                                     
EDID claims 1 more blocks left                                                                                                                                       
                                                                                                                                                                         
                                                                                                                                                                         
*********** Something special has happened!                                                                                                                               
This happens a lot with TV's, and other devices                                                                                                                            
with extension blocks. If you have a TV, don't bother.                                                                                                                       
Otherwise, please contact the author, Matthew Kern                                                                                                                            
E-mail: pyrophobicman@gmail.com                                                                                                                                                 
Please include full output from this program (especially that to stderr)                                                                                                         
                                                                                                                                                                                 
                                                                                                                                                                                     
                                                                                                                                                                                     
Reading next EDID block                                                                                                                                                              
                                                                                                                                                                                       
VBE/DDC service about to be called
        Read EDID

        Performing real mode VBE call
        Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
        Function supported
        Call successful

EDID claims 1 more blocks left
EDID blocks left is wrong.
Your EDID is probably invalid.
Looks like VBE was successful. Have a good day.
Checksum Correct

Section "Monitor"
        Identifier "DELL U2713H"
        ModelName "DELL U2713H"
        VendorName "DEL"
        # Monitor Manufactured week 18 of 2013
        # EDID version 1.4
        # Digital Display
        DisplaySize 600 340
        Gamma 2.20
        Option "DPMS" "true"
        Horizsync 29-113
        VertRefresh 49-86
        # Maximum pixel clock is 300MHz
        #Not giving standard mode: 1280x800, 60Hz
        #Not giving standard mode: 1680x1050, 60Hz
        #Not giving standard mode: 1920x1200, 60Hz
        #Not giving standard mode: 1152x864, 75Hz
        #Not giving standard mode: 1600x1200, 60Hz
        #Not giving standard mode: 1280x1024, 60Hz
        #Not giving standard mode: 1920x1080, 60Hz

        #Extension block found. Parsing...
I only know about extension blocks of type 02h. PLEASE email me!
Something strange happened. Please contact the author,
Matthew Kern at <pyrophobicman@gmail.com>