修改 config.txt 添加如下条目即可
hdmi_pixel_freq_limit=300000000
hdmi_timings=1440 0 70 35 45 2560 0 12 2 2 0 0 0 50 0 204790000 0
hdmi_drive=2
hdmi_group=2
hdmi_mode=87
hdmi_cvt=1440 2560 50
disable_overscan=1
max_framebuffer_width=1440
max_framebuffer_height=2560
display_rotate=0
framebuffer_width=1440
framebuffer_height=2560
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