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Old 08-22-2011, 07:37 PM
Pablo Sánchez
 
Default change color depth to 16bit

Hi , running wheezy/amd64 here, on a compaq 6820S .

Xorg.log tells video card is "RADEON(0): Chipset: "ATI Mobility Radeon X1350" (ChipID = 0x7196) "
and using xserver-xorg-video-radeon package .

I have an external monitor, with a 1920x1080 display geometry and the laptop monitor is 1440x900 .

I'd like to use both , but the virtual resolution on 24bit color is "short on resources".

I cannot find (at least on xrandr) how to change from 24bit to 16 bit .
Should i go through an xorg.conf file ? or fbset ? ...

On squeeze I got this working, just dropping color depth .

Any help, is welcome .

Regards .

Pablo


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Old 08-22-2011, 08:28 PM
Brad Alexander
 
Default change color depth to 16bit

As I recall, in section "Screen", you add

DefaultDepth********* 16

in /etc/X11/xorg.conf...

--b

2011/8/22 Pablo Sánchez <pablos@adinet.com.uy>

Hi , running wheezy/amd64 here, on a compaq 6820S .



Xorg.log tells video card is "RADEON(0): Chipset: "ATI Mobility Radeon X1350" (ChipID = 0x7196) "

and using xserver-xorg-video-radeon package .



I have an external monitor, with a 1920x1080 display geometry and the laptop monitor is 1440x900 .



I'd like to use both , but the virtual resolution on 24bit color is "short on resources".



I cannot find (at least on xrandr) how to change from 24bit to 16 bit .

Should i go through an xorg.conf file ? or fbset ? ...



On squeeze I got this working, just dropping color depth .



Any help, is welcome .



Regards .



Pablo





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Old 08-22-2011, 10:46 PM
Pablo Sánchez
 
Default change color depth to 16bit

Thanks* Brad.

Can I make an xorg.conf file only with that "Screen" section or go
with a full config one ?



Pablo



As I recall, in section "Screen", you add



DefaultDepth********* 16



in /etc/X11/xorg.conf...



--b



2011/8/22 Pablo Sánchez <pablos@adinet.com.uy>

Hi ,
running wheezy/amd64 here, on a compaq 6820S .



Xorg.log tells video card is "RADEON(0): Chipset: "ATI
Mobility Radeon X1350" (ChipID = 0x7196) "

and using xserver-xorg-video-radeon package .



I have an external monitor, with a 1920x1080 display geometry
and the laptop monitor is 1440x900 .



I'd like to use both , but the virtual resolution on 24bit
color is "short on resources".



I cannot find (at least on xrandr) how to change from 24bit to
16 bit .

Should i go through an xorg.conf file ? or fbset ? ...



On squeeze I got this working, just dropping color depth .



Any help, is welcome .



Regards .



Pablo






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Old 08-23-2011, 12:50 AM
Thierry Chatelet
 
Default change color depth to 16bit

On Tuesday 23 August 2011 00:46:22 Pablo Sánchez wrote:
> <html>
> <head>
> <meta content="text/html; charset=ISO-8859-1"
> http-equiv="Content-Type">
> </head>
> <body bgcolor="#FFFFFF" text="#000000">
> Thanks&nbsp; Brad. <br>
> Can I make an xorg.conf file only with that "Screen" section or go
> with a full config one ?<br>
> <br>
> Pablo <br>
> <br>
> </body>
> </html>

man xorg.conf will be instructive, as will be man Xorg.
Thierry


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Old 08-23-2011, 01:08 AM
Walter Hurry
 
Default change color depth to 16bit

On Tue, 23 Aug 2011 02:50:44 +0200, Thierry Chatelet wrote:

> On Tuesday 23 August 2011 00:46:22 Pablo Sánchez wrote:
>> <html>
>
> man xorg.conf will be instructive, as will be man Xorg. Thierry

AS will refraining from posting in html



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Old 08-29-2011, 03:01 PM
Pablo Sánchez
 
Default change color depth to 16bit

Well, on the thread "Re: xorg configuration" i got the hint to change to 16bit color depth without using xorg.conf.

Now, i cannot reach the virtual resolution to put each screen on each monitor, that is
1440x900 and 1920x1080 . All I get is 1920x1920, the external monitor is not on the right of
the laptop monitor, there is one over the other.
I have both screen on both monitors, which is quite problematic.

Is there any way to tell X to use a virtual resolution of 3360x1080 (1920+1440 x 1080) without using xorg.conf ?
I run Xorg -configure and i have a large and messy xorg.conf which i'mtrying to avoid .

I run :
xrandr --newmode "1440x900_60.00" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync
xrandr --addmode LVDS 1440x900_60.00

xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
xrandr --addmode VGA-0 1920x1080_60.00

xrandr --output VGA-0 --mode 1920x1080_60.00
xrandr --output VGA-0 --right-of LVDS

last command gives :
xrandr: screen cannot be larger than 1920x1920 (desired size 3360x1080)

Regards,

Pablo Sánchez.


On Tue, 23 Aug 2011 02:50:44 +0200, Thierry Chatelet wrote:


On Tuesday 23 August 2011 00:46:22 Pablo Sánchez wrote:

<html>

man xorg.conf will be instructive, as will be man Xorg. Thierry

AS will refraining from posting in html






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