$xrandr --addmode HDMI-0 “1920x1080_30.00”
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 18 (RRAddOutputMode)
Serial number of failed request: 20
Current serial number in output stream:21
But,it failed to set 1920x1080_30.00 resolution.
And how to set that resolution using the command of xrandr?
Thankyou very much.
It is appreciated for answering my question in your busy time.
Tx1 connected to a monitor.
$xrandr
screen 0: minimum 8x8,current 1280x720,maximum 16384x16384
HDMI-0 connected primary 1280x720+0+0(normal left inverted right x axis yaxis) 700mm x 390mm
1280x720 60.00*+ 59.94 50.00
1920x1080 60.00 59.95 50.00 61.25 51.04
1440x900 59.89
1440x596 50.08
1024x768 60.01*+
…
But it doesn’t have the resolution of 1920x1080@30Hz and 1920x1080@25Hz, though my monitor support those two resolution.
And how do I put these two resolution(1920x1080@30Hz 1920x1080@25Hz) in the list(the result of xrandr command) above?
I’m very sorry for the late reply.
I don’t know the EDID of my monitor.But I’ve added “hdmi-display {…}” to the dts of kernel source,and it display normally.