Display colors change with refresh rate

Martreb2000Martreb2000 Level 1
edited November 19 in ZenFone 9

The screen colors/contrast are slightly different at different refresh rates. With auto, it flickers.

In 90Hz color reproduction is bad, it gets a blueish hue.

  1. Model Name: zf9
  2. Firmware Version: 32.2040.2040.23
  3. Rooted or not: nope
  4. Frequency of Occurrence: permanent


Workaround: fix refresh rate.

Steps to replicate:

  1. Dark mode
  2. Switch display mode/colour profile to "neutral"
  3. Place refresh rate toggle as first quick setting in notification shade
  4. Decrease brightness to minimum
  5. Pull down notification shade
  6. Switch between refresh rates using the toggle and observe the gray background of the notification shade changing hue/color.

Another, slightly more way:

  1. Enable auto refresh rate
  2. Take many high dynamic range photos with whichever app
  3. Brightness to minimum
  4. Open Google photos
  5. Start scrolling, and observe color changes between scrolling and not scrolling


  • Hey @Martreb2000, thanks for bringing this to our attention, we've forwarded the issue to the R&D team.

  • @Mansi_ASUS you guys rock with these quick, direct responses, and the with the quick patch releases, line today. Thanks for the whole team there!

  • Hi, I'm still having this issue, I just had mine repaired for broken Wi-Fi (issue with main board) and noticed this contrast flicker issue to be worse since getting it fixed. Any suggestions?


  • Hey @Martreb2000, I heard back from the R&D team.

    In the first scenario, the screen flash issue is due to a hardware limitation since the screen flashes rate supported by each APP and interface is different, this is a normal reaction that the naked eye may see when switching

    You can fix the screen flashes rate at 60hz if they feel troubled.

    As for the second scenario, the R&D could not replicate the issue, so they require your assistance for further investigation-

    1. Go to the developer options, and enable the display screen refresh rate
    2. Activate the log
    3. Recreate the issue by opening google photos, slide the down page, and observe whether the displayed fps changes (normally it should be fixed at 60)
    4. Save and send the log.

    Please follow the below steps to activate the built-in log tool (Bug reporter).

    1.  Open “Calculator APP”

    2.  Enter “.19595+=”

    3.  Select the Log type according to the type of issue you want to capture. “General cases” will work for most issues.

    4.  After your selection the log tool will exit so you can duplicate the issue or wait for it to happen. Try to use the screen recorder to show your issue when possible. If you can't screen record your issue, then please take a screenshot right after the issue has occurred (as a timestamp) so we know where to look in the log.

    5.  Navigate back to the log tool via calculator and Tap "FINISH AND SHARE".

    6. It takes several minutes for the log to generate. You can exit and do other stuff in the meantime. A silent notification will tell you once the process is done. Tap the notification and then the share button to upload the file to Google Drive and share the link with a moderator. Just make sure to change the permission first so that everyone with the link has permission to view it.

    Note: When you're no longer planning on logging your device, enter “.09595+=” in the calculator and the log tool will stop as well as deleting all stored log files. Make sure to share via calculator. The files found in internal storage -> asus_log are not the correct files (they are only 1.2kb).

    You can share the log with me via PM.

  • clavoclavo Level 1

    This problem has already been addressed. It is due to the poorly calibrated 90Hz mode. If it bothers you - like me - you have to switch to a constant refresh rate. Asus does not seem to want to do anything about this.

    Just read through this thread:


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