DELL S2722QC is an excellent monitor

  • [+] 4k resolution
  • [+] charge laptop via USB-C
    • [-] unfortunately exactly this USB-C charging causes in combination with “ThinkPad T14 Gen 3” a buzzing sound on the audio out jack (miniklinke headphones kopfhörer)

howto show monitor model?

ls /sys/class/drm/*/edid | xargs -i{} sh -c "echo {}; parse-edid < {}"|less

Identifier "DELL S2722QC"
ModelName "DELL S2722QC"
VendorName "DEL"
# Monitor Manufactured week 45 of 2023
# EDID version 1.4
# Digital Display
DisplaySize 600 340
Gamma 2.20
Option "DPMS" "true"
Horizsync 137-137
VertRefresh 40-60

# can also read the serial
su - root
apt update && apt install hwinfo
hwinfo --monitor
20: None 00.0: 10002 LCD Monitor                                
  [Created at monitor.125]
  Unique ID: rdCR.a4MXlXQbur8
  Parent ID: _Znp.A63KW1_EgH1
  Hardware Class: monitor
  Model: "BOE CQ LCD Monitor"
  Vendor: BOE "BOE CQ"
  Device: eisa 0x0a35 
  Serial ID: "0"
  Resolution: 1920x1200@60Hz
  Size: 302x189 mm
  Year of Manufacture: 2021
  Week of Manufacture: 20
  Detailed Timings #0:
     Resolution: 1920x1200
     Horizontal: 1920 1968 2000 2140 (+48 +80 +220) -hsync
       Vertical: 1200 1203 1209 1260 (+3 +9 +60) +vsync
    Frequencies: 161.79 MHz, 75.60 kHz, 60.00 Hz
  Driver Info #0:
    Max. Resolution: 1920x1200
    Vert. Sync Range: 40-60 Hz
    Hor. Sync Range: 76-76 kHz
    Bandwidth: 161 MHz
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #15 (VGA compatible controller)

21: None 01.0: 10002 LCD Monitor
  [Created at monitor.125]
  Unique ID: wkFv.kEavKLkZwV1
  Parent ID: _Znp.A63KW1_EgH1
  Hardware Class: monitor
  Model: "DELL S2722QC"
  Vendor: DEL "DELL"
  Device: eisa 0xa1d0 "DELL S2722QC"
  Serial ID: "D13F..." <- can also read serial
  Resolution: 720x400@70Hz
  Resolution: 640x480@60Hz
  Resolution: 640x480@75Hz
  Resolution: 800x600@60Hz
  Resolution: 800x600@75Hz
  Resolution: 1024x768@60Hz
  Resolution: 1024x768@75Hz
  Resolution: 1280x1024@75Hz
  Resolution: 1152x864@75Hz
  Resolution: 1280x1024@60Hz
  Resolution: 1600x900@60Hz
  Resolution: 1600x1200@60Hz
  Resolution: 3840x2160@60Hz
  Size: 597x336 mm
  Year of Manufacture: 2023
  Week of Manufacture: 45
  Detailed Timings #0:
     Resolution: 3840x2160
     Horizontal: 3840 3888 3920 4000 (+48 +80 +160) -hsync
       Vertical: 2160 2163 2168 2222 (+3 +8 +62) +vsync
    Frequencies: 533.25 MHz, 133.31 kHz, 60.00 Hz
  Driver Info #0:
    Max. Resolution: 3840x2160
    Vert. Sync Range: 40-60 Hz
    Hor. Sync Range: 137-137 kHz
    Bandwidth: 533 MHz
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #15 (VGA compatible controller)

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