Fairphone 6: Extra Dim is limited to 50%

Issues
1
  • Device: Fairphone 6
  • iodéOS Version: 7.7-20260720-FP6
  • Affected App(s): Settings / System UI (Extra Dim)

Short Description:

Extra Dim has very little effect on the Fairphone 6. Even with normal brightness set to minimum and Extra Dim intensity set to maximum, the screen remains quite bright.

The FP6 framework overlay appears to cap Extra Dim strength at 50%:

<integer name="config_reduceBrightColorsStrengthMax">50</integer>

This can be confirmed at runtime:

$ cmd overlay lookup android android:integer/config_reduceBrightColorsStrengthMax

50

$ dumpsys color_display | sed -n '/Reduce bright colors:/,/Color mode:/p'

Reduce bright colors:
    Activated: true
    mStrength = 50
Color mode: 256

New Issue, Regression, or Feature Request?

New Issue.

I do not know whether this worked differently on an earlier iodéOS version.

Additional Information:

I also tried setting the strength manually:

$ settings put secure reduce_bright_colors_level 100

The value is stored correctly:

$ settings get secure reduce_bright_colors_level

100

but dumpsys color_display still reports:

mStrength = 50

So the device-specific framework limit seems to be actively capping the feature.

The relevant FP6 device configuration appears to be:

android_device_fairphone_FP6/overlay/FrameworksResCommon_Sys/res/values/config.xml

which contains:

<integer name="config_reduceBrightColorsStrengthDefault">40</integer>
<integer name="config_reduceBrightColorsStrengthMax">50</integer>

AOSP normally uses 90 as the maximum value.

If there is no Fairphone 6-specific hardware reason for this limit, increasing it to 90 or removing the FP6-specific override may restore the expected Extra Dim range.

The device is not rooted. Shizuku / wireless ADB was used only for diagnostics.

1 Like
2

Since we rely on the LineageOS source (now finally from their official repos), it would be worth checking to see if any mention of this issue is discussed on their Reddit https://www.reddit.com/r/LineageOS/ or maybe the Fairphone forums. If can’t find anything, would you be willing to post there to see if LineageOS or /e/OS users could confirm?