Hi!
I using a A20-OlinuXino-Lime with debian with a LCD TV throught HDMI.
On any resolution, the Desktop/Screen is larger than my Monitor Display.
I readed many times, the problem is on TV side, but I have no any option for picture/scale settings on my TV. LCD TV is very old (Mirai 32"). On newer TV (LG LM670s) screen works fine. But I dont want to buy a new TV due to OlimexBoard. I need to fix this by software.
Can anyone help me to correct this on Debian A20?
Thanks for your help
You should be able to use xrandr to offset it using underscan. Something like:
xrandr --output <output> --set underscan on --set "underscan hborder" <horizontal border> --set "underscan vborder" <vertical border>
Hi, thank you for your reply. I already tried play with xrandr, but with no success.
Here is list of screens:
root@a20-OLinuXino:/home/olimex# xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1280 x 720, current 1280 x 720, maximum 1280 x 720
default connected 1280x720+0+0 0mm x 0mm
1280x720 50.0*
And here is output after command set underscan
root@a20-OLinuXino:/home/olimex# xrandr --output default --set underscan on
xrandr: Failed to get size of gamma for output default
X Error of failed request: BadName (named color or font does not exist)
Major opcode of failed request: 149 (RANDR)
Minor opcode of failed request: 11 (RRQueryOutputProperty)
Serial number of failed request: 21
Current serial number in output stream: 21
Dont really know, what to do... Please help.
Adam
Try replacing --output default to --output Screen\ 0 or --output 'Screen 0'. Hopefully one of those works.
Hi insomniac... I tried your tip, but still not working. Here is output:
root@a20-OLinuXino:/home/olimex# xrandr --output 'Screen 0' --set underscan on
xrandr: Failed to get size of gamma for output default
warning: output Screen 0 not found; ignoring
X Error of failed request: BadRROutput (invalid Output parameter)
Major opcode of failed request: 149 (RANDR)
Minor opcode of failed request: 15 (RRGetOutputProperty)
Serial number of failed request: 20
Current serial number in output stream: 20
root@a20-OLinuXino:/home/olimex# xrandr --output Screen\ 0 --set underscan on
xrandr: Failed to get size of gamma for output default
warning: output Screen 0 not found; ignoring
X Error of failed request: BadRROutput (invalid Output parameter)
Major opcode of failed request: 149 (RANDR)
Minor opcode of failed request: 15 (RRGetOutputProperty)
Serial number of failed request: 20
Current serial number in output stream: 20
root@a20-OLinuXino:/home/olimex#
Hi Adam,
Try running xrandr without any arguments. It should list all outputs. Is there an HDMI-0 or something? If so, try that in place of screen 0
This is the output of command "xrandr" without paramters:
root@a20-OLinuXino:/home/olimex# xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1280 x 720, current 1280 x 720, maximum 1280 x 720
default connected 1280x720+0+0 0mm x 0mm
1280x720 50.0*
root@a20-OLinuXino:/home/olimex#
Does anybody have some more hints?
If you've googled about xrandr widely and can't solve it I'd grab its source code and see what it does / add debug code.
John