Raspberry Pi Asked by Matt Mas on December 19, 2021
When I connect my raspberry pi to a monitor through an HDMI cable, the resolution gets lower at the boot of the desktop UI, but when I click on start menu it turns to 1920×1080. Sometimes it randomly changes.
I set the resolution at 1920×1080.
What is the matter?
You can force the raspberry pi to use a specific resolution for HDMI, you do this by plugging you sd card into a computer and modifying the /boot/config.txt file.
specifically you want to uncomment the following lines:
framebuffer_width=1920 #set the resolution of the TV
framebuffer_height=1080 #set the resolution of the TV
and change the two values to the appropriate resolution for your TV
Answered by Mohammad Ali on December 19, 2021
Unless this is the result of some prior fiddling with the resolution, I'd say that either your HDMI cable, your monitor or your Raspberry Pi is broken. Try another cable, or another monitor first. Or flash a fresh Raspbian onto another SD card and boot from that. Any changes?
Answered by redolent on December 19, 2021
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