I had similar issues when I needed a rpi3 to be forced into running 720p into a video capture device.
These used to be handled in config.txt It looks like they moved those setting into a legacy section; https://www.raspberrypi.com/documentation/computers/legacy_config_txt.html#legacy-video-options I remember it taking several tries of different combinations of group and mode before finding one that worked. On Thu, Apr 4, 2024 at 9:36 PM <taylor.ga...@gmail.com> wrote: > > Thanks for the quick reply, I put in the hdmi_enable_4k line and no > difference. > > My cmdline.txt is: > > console=0 user=glenda nobootprompt=local!/dev/sdM0/fs > hdmi_group=2 > hdmi_mode=82 > hdmi_enable_4kp60=1 > hdmi_cvt=2560 1440 60 3 0 0 1 > max_framebuffer_width=2560 > max_framebuffer_height=1440 > hdmi_pixel_freq_limit=400000000 > vgasize=2560x1440x16 > > It just seems like nothing I do really seems to make much difference. > > Cheers > > Garry > 9fans / 9fans / see discussions + participants + delivery options Permalink ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T42a55b55ffb81417-Mce32b985a400d620bfbd5984 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
