The display in question is a TFTMD089030 with added glass cover and touch.2560x1600 @ 60Hz does bump you beyond the 148.5MHz pixel rate that is used for 1080p60, so you may need to look at HDMI2.0 devices.
HDMI 1.4 allows pixel rates of up to 340MHz. Above that HDMI2.0 kicks in, and the mode of operation on the HDMI link significantly (spread spectrum and scrambling changes, both requiring the SCDC data channel). Some devices will quote a max of 4k30 (pixel clock of 297MHz) so as to avoid that requirement.
This is the config.txt settings I use to run the display currently:
Code:
# Enable DRM VC4 V3D driver on top of the dispmanx display stackdtoverlay=vc4-fkms-v3dmax_framebuffers=2## 2560 displaygpu_mem_1024=256framebuffer_width=2560framebuffer_height=1600max_framebuffer_width=2560max_framebuffer_height=1600hdmi_ignore_edid=0xa5000080hdmi_drive=2hdmi_pixel_freq_limit=400000000hdmi_group=2hdmi_mode=87#hdmi_timings=#<h_active_pixels> 2560#<h_sync_polarity> 1#<h_front_porch> 48#<h_sync_pulse> 32#<h_back_porch> 80#<v_active_lines> 1600#<v_sync_polarity> 1#<v_front_porch> 3#<v_sync_pulse> 5#<v_back_porch> 54 --->1#<v_sync_offset_a> 0#<v_sync_offset_b> 0#<pixel_rep> 0#<frame_rate> 60#<interlaced> 0#<pixel_freq> 220430000#<aspect_ratio> aspect ratio 1=4:3, 2=14:9, 3=16:9, 4=5:4, 5=16:10, 6=15:9hdmi_timings=2560 1 48 32 80 1600 1 3 5 1 0 0 0 60 0 220430000 5Statistics: Posted by Jesper_ITOS — Tue Feb 04, 2025 6:50 pm