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I configured the pi screen to be horizontal (using display_rotate=1) but as you can see in the image the scree is not in full screen: enter image description here

it start from about 1/4 from left of the screen I use a manual hdmi configuration, so I guess i can't configure overscan. even if I try, raspberry pi will ignore it. Any way to fix it somehow?

Here is my configuration:

display_rotate=1
overscan_left=200
config_hdmi_boost=4
hdmi_group=2
hdmi_mode=87
hdmi_drive=2
hdmi_timings=1440 0 50 10 35 2560 0 4 2 2 0 0 0 50 0 198000000 0
hdmi_pixel_freq_limit=500000000
hdmi_ignore_edid=0xa5000080
hdmi_force_hotplug=1
max_framebuffer_width=1440
max_framebuffer_height=2560
framebuffer_width=1440
framebuffer_height=2560
hvs_priority=0x32ff
framebuffer_depth=24
framebuffer_ignore_alpha=1
gpu_mem=192
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You don't say which model Pi (the Pi4 is different), but you appear to be labouring under a misapprehension.

display_rotate=1 DOES NOT rotate the framebuffer.

Get rid of all the extraneous rubbish you put in config.txt and it should work.
It looks to me like the Pi is doing precisely what you asked it to do!

| improve this answer | |
  • I remove everything from config.txt - I get a blank screen. This is Pi3. I found out that the minimum config for the screen to work is to put the followings (but after that, the screen still start from 1/4 of the screen as in the image): hdmi_group=2 hdmi_mode=87 hdmi_drive=2 hdmi_timings=1440 0 50 10 35 2560 0 4 2 2 0 0 0 50 0 198000000 0 hdmi_pixel_freq_limit=500000000 display_rotate=1 (note, the display rotate is optional, I want the screen to be in landscape mode) – winter Feb 1 at 19:56

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