The Google Pixel 8 Pro is a reliable smartphone featuring an excellent display. However, it may not be very comfortable for users who are sensitive to PWM frequency, which is common in many modern displays. For some individuals, a low PWM frequency renders the smartphone display practically unusable. Fortunately, this issue can be addressed with a new modification.
Pulsed width modulation (PWM) frequency is utilized in nearly all OLED displays to control brightness. This mechanism allows the eyes to perceive the display as brighter or dimmer. Occasionally, black stripes can appear on photographs of OLED displays when the PWM frequency decreases and the image becomes dimmer.
For most people, the distinction between a display with a low PWM frequency and one with an ultra-high frequency is negligible. However, for some users, a display with a low PWM frequency can cause significant eye strain. Unfortunately, Google Pixel devices fall into the category that can create discomfort for the eyes.
Nonetheless, the Pixel 8 Pro has now been modified to effectively raise the PWM frequency well above the standard level. This can be achieved by using a modified boot image that doubles the PWM frequency to 480 Hz. However, this requires root access to the device.
Further modifications have enabled the Pixel 8 Pro to operate at a frequency of 3840 Hz. The smartphone functioned without any apparent problems, but the display exhibited a noticeable green tint along with some other color distortions. It is likely that these color transfer distortions are why Google does not employ an excessively high PWM frequency for the Pixel 8 Pro.
As other brands continue to enhance their PWM specifications, one can only hope that Google will pursue a similar path in the future. In the meantime, users can make adjustments to the operation of their current smartphones, provided they are willing to take the risk of altering the device's firmware.
Source: 9to5google
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