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Hello,
I am using headless raspbian with Xsever. I have been trying to correct the orientation of my 2K lcd but have not been able to achieve that after several attempts.
Snapshot of config.txt
hdmi_pixel_encoding:0=2
hdmi_force_mode:0=1
disable_overscan:0=1
hdmi_cvt:0=1440 2560 50 3 0 0 0
hdmi_group:0=2
hdmi_mode:0=87
hdmi_drive:0=2
hdmi_force_hotplug:0=1
config_hdmi_boost:0=4
framebuffer_width:0=1440
framebuffer_height:0=2560
max_framebuffer_width:0=1440
max_framebuffer_height:0=2560
framebuffer_depth:0=32
framebuffer_ignore_alpha:0=1
hdmi_pixel_freq_limit:0=500000000
=====================================
vc4-fkms-v3d is enabled, hence display_rotate wouldn't work.
Steps tried to have the hdmi-0 display rotated :
1.xrandr command within xdg/autostart
DISPLAY=:0 xrandr --output HDMI-1 --rotate right
2. added below text to cmdline.txt for making this change at kernel startup:
video=HDMI-A-1:1440x2560M@50,margin_left=0,margin_right=0,margin_top=0,margin_bottom=0,rotate=90
Can anybody provide any suggestions??
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Still unable to resolve this. Can anyone provide any pointers ?? thanks in anticipation!
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If you downgrade to an older firmware you can rotate the display on a Pi4:
"sudo rpi-update f0236cc587a58532fbe1267c1db7a0dd7b22d01e"
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Thanks for the suggestion! Will try it out and let you know.
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Here is a thread about it, unfortunately I don't think newer firmware versions will ever get a real fix.
github.com/raspberrypi/firmware/issues/1476
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Swap_file,
Thank you. It will be useful for many people.
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