AMD catalyst underscan

causa-prima · 2013-07-21 18:02:16

I just switched from a NVidia 9500GT (with nvidia drivers) to a AMD Radeon HD 7750 (with latest catalyst drivers from Vi0L0 repo). I use a Dell U2711 attached to DVI and a Panasonic TX-P50V20E. I just use the Panasonic to watch some videos, so I just activate it when I need it. I think I followed the wiki article about installing the catalyst driver closely and should not have forgotten any step, but maybe I didn't

My problem is I can't get rid of underscan on the TV. There is not even a slider in the ccc. I've already tried turning underscan of with xrandr ("xrandr --output DFP5 --set underscan off"), which just prints the following:

X Error of failed request:  BadName (named color or font does not exist)
  Major opcode of failed request:  141 (RANDR)
  Minor opcode of failed request:  11 (RRQueryOutputProperty)
  Serial number of failed request:  51
  Current serial number in output stream:  51

I've also tried setting the variable DigitalHDTVDefaultUnderscan to 0 with aticonfig ("sudo aticonfig --set-pcs-u32=MCIL,DigitalHDTVDefaultUnderscan,0"), that also does nothing after giving me the following output:

No protocol specified
Set key MCIL,DigitalHDTVDefaultUnderscan

I've also tried setting the TVEnableOverscan variable to V0 in /etc/ati/amdpcsdb. After logout and login it is set to V1 again, also DigitalHDTVDefaultUnderscan vanishes.

What else could I try to get rid of underscan?

Last edited by causa-prima (2013-07-21 18:17:37)

causa-prima · 2013-08-18 10:45:17

This still bugs me very much, please help!

Fregtux · 2013-08-18 11:05:44

Run:

amdcccle

So go in tab Screen managment (I use it in italian, I don't know correct translation)>your monitor>regolation, then regulate underscan.

causa-prima · 2013-08-19 19:44:27

Thanks, but to there is no such thing in the ccc. Here is a screenshot with german UI, but you can see that there is nothing I can adjust:

It sees my tv as projector in linux, under win7 it is correctly recognized as tv with all the options for adjustment.

Fregtux · 2013-08-19 20:09:00

Is it in digitaler monitor?

if there is not even there, try to read this:

http://wiki.cchtml.com/index.php/Configuring

causa-prima · 2013-08-20 11:52:20

No, "Digitaler Monitor" obviously mean "digital monitor", and that is my Dell U2711.

But still: Thank you! These lines were the ones fixing my problem:

aticonfig --query-dispattrib=tmds2 #to see supported values
aticonfig --set-dispattrib=tmds2,sizeX:1920 # to set X resolution
aticonfig --set-dispattrib=tmds2,sizey:1080 # to set Y resolution 
aticonfig --set-dispattrib=tmds2,positionX:0 # to set X position to 0
aticonfig --set-dispattrib=tmds2,positionY:0 # to set Y position to 0

I just needed to change tmds2 to dfp5. Now I will put this into a script for automation and ease of access.

Still it's curios that I need to do it this way and do not have the option to adjust underscan.

Fregtux · 2013-08-21 10:38:23

Good!

Can you post script for automation? It could be helpful for others with same problem

causa-prima · 2013-08-22 11:02:16

It's nothing big, just a switch for my special case. If the tv on DFP5 has no resolution set, xrandr will set 1920x1080, then I adjust the size and placement with aticonfig. If the tv has a resolution set xrandr will turn it off. Here's the script:

#!/bin/bash

state=$(xrandr | grep DFP5 | grep +)
echo $state
if [[ ${#state} -gt 0 ]]; then
  xrandr --output DFP5 --off
else
  xrandr --output DFP5 --below DFP6 --mode 1920x1080 --rate 50
  aticonfig --set-dispattrib=dfp5,sizeX:1920
  aticonfig --set-dispattrib=dfp5,sizeY:1080
  aticonfig --set-dispattrib=dfp5,positionX:0
  aticonfig --set-dispattrib=dfp5,positionY:0
fi

Fregtux · 2013-08-22 11:29:25

Thanks!

Arch Linux

#1 2013-07-21 18:02:16

AMD catalyst underscan

#2 2013-08-18 10:45:17

Re: AMD catalyst underscan

#3 2013-08-18 11:05:44

Re: AMD catalyst underscan

#4 2013-08-19 19:44:27

Re: AMD catalyst underscan

#5 2013-08-19 20:09:00

Re: AMD catalyst underscan

#6 2013-08-20 11:52:20

Re: AMD catalyst underscan

#7 2013-08-21 10:38:23

Re: AMD catalyst underscan

#8 2013-08-22 11:02:16

Re: AMD catalyst underscan

#9 2013-08-22 11:29:25

Re: AMD catalyst underscan

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