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Problem: HDMI port resolution
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Hi moOde fans,
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04-15-2018, 10:03 PM
There is no fixed resolution for the HDMI port. An attempt to dynamically determine the resolution of HDMI attached monitor is made by some code in the X11 display server startup script /home/pi/.xinitrc. This resolution is then used to set the Window size for Chrome Browser when its launched.
Some monitors might not report the correct resolution. YMMV. In this case I think there are some manual settings that can be made in /boot/config.txt but I have no idea what they might be. Here is the .xinitrc script Code: # Turn off display power management And here is what is returned for SCREENSIZE after I connect to my 24" 1920x1200 ASUS panel and then reboot. Code: pi@rp3:~ $ fbset -s | awk '$1 == "geometry" { print $2","$3 }' -Tim
Hi moOde fans,
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Hi moOde fans,
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04-17-2018, 02:35 PM
(04-16-2018, 05:52 PM)JST1963 Wrote: Tim, Hi, Johan. I looked up the fbset command used in the .xinitrc script. The man page says Quote:fbset uses an own video mode database located in /etc/fb.modes. An unlimited number of video modes can be defined in this database. For further information see fb.modes(5). Your 1680x1050 resolution isn't defined in fb.modes as distributed but you could define it yourself. I'm presupposing that raspbian uses some variation of VESA EDID via HDMI to detect the monitor's capabilities and then compares that with the fb.modes data. Regards, Kent
1680x1050 in configs here Kent.. #57 thru #59 ;-).....https://www.raspberrypi.org/documentation/configuration/config-txt/video.md
Setup configs here...https://www.raspberrypi.org/documentation/configuration/config-txt/README.md maybe set manually in /boot/config.txt hdmi_drive=1 # Set monitor mode hdmi_group=2 # Set monitor resolution to 1680x1050 60Hz hdmi_mode=58
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bob
Hi moOde fans,
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04-17-2018, 09:39 PM
(04-17-2018, 07:39 PM)DRONE7 Wrote: 1680x1050 in configs here Kent.. #57 thru #59 ;-).....https://www.raspberrypi.org/documentation/configuration/config-txt/video.mdThanks for that, @DRONE7. Curious, though, that the raspbian config.txt and the /etc/fb.modes file in raspbian aren't better aligned in terms of resolution choices. Regards, Kent |
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