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Old 09-30-2011, 12:55 AM
Harry Putnam
 
Default Virtual resolution for desktop

For many years I've been able to get a really big desktop, so big you
have to pan around on it. I used some code in xorg.conf to do it, but
now that X and desktops are generated quite a lot different. I don't
begin to understand the process but would like to find a way to get my
old high resolution desk back.

The way its done in xorg.conf is with a single line of code in a sub
section of a screen subsection. Looks like this:

,----
| Section "Screen"
|
| [...]
|
| Subsection "Display"
| Depth 24
| Modes "1280x1024" #"1024x768" "800x600" "640x480"
| Virtual 2048 1536
| ViewPort 0 0
| EndSubsection
|
| EndSection
`----
Note the line that says `Virtual 2048 1536'

That doesn't look all that big anymore since monitors have gotten so
big but its still more than most monitors can display.

With that in xorg.conf... I'd have a desktop of that size.... but when
I try to use the xorg.conf on this brand new install of debian wheezy
it just gums up the works... and can't get to X at all.

Is there some way to get a `Virtual' resolution using whatever
techniques are now employed to generate our desktops?



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Old 09-30-2011, 01:37 AM
Scott Ferguson
 
Default Virtual resolution for desktop

On 30/09/11 10:55, Harry Putnam wrote:
> For many years I've been able to get a really big desktop, so big you
> have to pan around on it. I used some code in xorg.conf to do it, but
> now that X and desktops are generated quite a lot different. I don't
> begin to understand the process but would like to find a way to get my
> old high resolution desk back.
>
> The way its done in xorg.conf is with a single line of code in a sub
> section of a screen subsection. Looks like this:
>
> ,----
> | Section "Screen"
> |
> | [...]
> |
> | Subsection "Display"
> | Depth 24
> | Modes "1280x1024" #"1024x768" "800x600" "640x480"
> | Virtual 2048 1536
> | ViewPort 0 0
> | EndSubsection
> |
> | EndSection
> `----
> Note the line that says `Virtual 2048 1536'
>
> That doesn't look all that big anymore since monitors have gotten so
> big but its still more than most monitors can display.
>
> With that in xorg.conf... I'd have a desktop of that size.... but when
> I try to use the xorg.conf on this brand new install of debian wheezy
> it just gums up the works... and can't get to X at all.
>
> Is there some way to get a `Virtual' resolution using whatever
> techniques are now employed to generate our desktops?
>
>
>

Yes

xrandr --panning

*Just an example - DO NOT use on your monitor/screen* eg:-
xrandr --output LVDS --panning 2048x1536

If you are running KDE and have KRandR installed - take a look at:-
~/.kde/share/config/krandrrc
as a reference.

Cheers


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Old 09-30-2011, 12:52 PM
Harry Putnam
 
Default Virtual resolution for desktop

Scott Ferguson <prettyfly.productions@gmail.com> writes:

>> Is there some way to get a `Virtual' resolution using whatever
>> techniques are now employed to generate our desktops?
>>
>>
>>
>
> Yes
>
> xrandr --panning
>
> *Just an example - DO NOT use on your monitor/screen* eg:-
> xrandr --output LVDS --panning 2048x1536

Whats with the Do NOT part? Harmful in some way?

> If you are running KDE and have KRandR installed - take a look at:-
> ~/.kde/share/config/krandrrc
> as a reference.

No, not running kde but if this can be done it would seem its a matter
of configuration... no?


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Old 09-30-2011, 01:12 PM
Brian
 
Default Virtual resolution for desktop

On Fri 30 Sep 2011 at 07:52:23 -0500, Harry Putnam wrote:

> Scott Ferguson <prettyfly.productions@gmail.com> writes:
>
> > *Just an example - DO NOT use on your monitor/screen* eg:-
> > xrandr --output LVDS --panning 2048x1536
>
> Whats with the Do NOT part? Harmful in some way?

Scott is possibly pointing out that your maximimum screen may not be
2048x1536.

The January and February list archives at

http://lists.debian.org/users.html

have posts on xrandr and panning.


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Old 09-30-2011, 02:46 PM
Camaleón
 
Default Virtual resolution for desktop

On Thu, 29 Sep 2011 19:55:13 -0500, Harry Putnam wrote:

(...)

> With that in xorg.conf... I'd have a desktop of that size.... but when I
> try to use the xorg.conf on this brand new install of debian wheezy it
> just gums up the works... and can't get to X at all.
>
> Is there some way to get a `Virtual' resolution using whatever
> techniques are now employed to generate our desktops?

Yes, I would try to set it with xrandr:

http://wiki.debian.org/XStrikeForce/HowToRandR12

Greetings,

--
Camaleón


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Old 09-30-2011, 07:38 PM
Harry Putnam
 
Default Virtual resolution for desktop

Camaleón <noelamac@gmail.com> writes:

>> Is there some way to get a `Virtual' resolution using whatever
>> techniques are now employed to generate our desktops?
>
> Yes, I would try to set it with xrandr:
>
> http://wiki.debian.org/XStrikeForce/HowToRandR12

some (alot) of that is pretty confusing to me.

It seems to say running `xrandr' by itself will show the current mode.
Screen 0: minimum 320 x 200, current 1440 x 900, maximum 4096 x 4096
VGA-1 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected 1440x900+0+0 (normal left inverted right x axis y axis) 550mm x 340mm
1280x1024 75.0 60.0
1440x900 59.9*
1280x960 60.0
1152x864 75.0
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 72.8 75.0 66.7 60.0
720x400 70.1
TV-1 disconnected (normal left inverted right x axis y axis)

so for me its 1440x900

so trying this:

sudo xrandr --output DVI-I-1 --mode 1440x900 --fb 2048x1536
--panning 2048x1536

And Yup, it worked. Only problem is that its barely any difference.
The monitor is a 25in with resolution of 1900x1280 so I gues 2048x1536
isn't enough bigger to be very noticable.

The panning is about 1/8 inch or less.

So I tried bigger:
sudo xrandr --output DVI-I-1 --mode 1440x900 --fb 4096x2700 --panning 4096x2700

Still no panning.

The cited url goes on and on about piles of stuff, but does not seem
to discuss what I'm trying to do.

I thought maybe the panning number has to be bigger than the fb
setting. But the few combos I tried failed:

sudo xrandr --output DVI-I-1 --mode 1440x900 --fb 2880x1800 --panning 4096x2700
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 150 (RANDR)
Minor opcode of failed request: 29 (RRSetPanning)
Serial number of failed request: 30
Current serial number in output stream: 30

I'm not getting heads or tails from the web page... can you take an
educated guess what might work to give me a fair bit of panning room?


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Old 09-30-2011, 11:13 PM
Brian
 
Default Virtual resolution for desktop

On Fri 30 Sep 2011 at 14:38:44 -0500, Harry Putnam wrote:

> I'm not getting heads or tails from the web page... can you take an
> educated guess what might work to give me a fair bit of panning room?

Could be a bug, y'know. It's been known to happen:

https://bugzilla.redhat.com/show_bug.cgi?id=655212

P.S. Another post from you on exactly the same topic fragments the
thread. Responses are best kept in one place.


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Old 10-01-2011, 03:21 AM
Scott Ferguson
 
Default Virtual resolution for desktop

On 01/10/11 05:38, Harry Putnam wrote:
> Camaleón <noelamac@gmail.com> writes:
>
>>> Is there some way to get a `Virtual' resolution using whatever
>>> techniques are now employed to generate our desktops?
>>
>> Yes, I would try to set it with xrandr:
>>
>> http://wiki.debian.org/XStrikeForce/HowToRandR12
>
> some (alot) of that is pretty confusing to me.

Unless you're running a Thinkpad it's not relevant.

>
> It seems to say running `xrandr' by itself will show the current mode.
> Screen 0: minimum 320 x 200, current 1440 x 900, maximum 4096 x 4096
> VGA-1 disconnected (normal left inverted right x axis y axis)
> DVI-I-1 connected 1440x900+0+0 (normal left inverted right x axis y axis) 550mm x 340mm
> 1280x1024 75.0 60.0
> 1440x900 59.9*
> 1280x960 60.0
> 1152x864 75.0
> 1024x768 75.1 70.1 60.0
> 832x624 74.6
> 800x600 72.2 75.0 60.3 56.2
> 640x480 72.8 75.0 66.7 60.0
> 720x400 70.1
> TV-1 disconnected (normal left inverted right x axis y axis)
>
> so for me its 1440x900
>
> so trying this:
>
> sudo xrandr --output DVI-I-1 --mode 1440x900 --fb 2048x1536
> --panning 2048x1536
>
> And Yup, it worked. Only problem is that its barely any difference.
> The monitor is a 25in with resolution of 1900x1280 so I gues 2048x1536
> isn't enough bigger to be very noticable.
>
> The panning is about 1/8 inch or less.
>
> So I tried bigger:
> sudo xrandr --output DVI-I-1 --mode 1440x900 --fb 4096x2700 --panning 4096x2700
>
> Still no panning.
>
> The cited url goes on and on about piles of stuff, but does not seem
> to discuss what I'm trying to do.
>
> I thought maybe the panning number has to be bigger than the fb
> setting. But the few combos I tried failed:
>
> sudo xrandr --output DVI-I-1 --mode 1440x900 --fb 2880x1800 --panning 4096x2700
> X Error of failed request: BadMatch (invalid parameter attributes)
> Major opcode of failed request: 150 (RANDR)
> Minor opcode of failed request: 29 (RRSetPanning)
> Serial number of failed request: 30
> Current serial number in output stream: 30
>
> I'm not getting heads or tails from the web page... can you take an
> educated guess what might work to give me a fair bit of panning room?
>
>

I'll respond in full to your later post.

Cheers


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Old 10-01-2011, 01:46 PM
Camaleón
 
Default Virtual resolution for desktop

On Fri, 30 Sep 2011 14:38:44 -0500, Harry Putnam wrote:

> Camaleón <noelamac@gmail.com> writes:
>
>>> Is there some way to get a `Virtual' resolution using whatever
>>> techniques are now employed to generate our desktops?
>>
>> Yes, I would try to set it with xrandr:
>>
>> http://wiki.debian.org/XStrikeForce/HowToRandR12
>
> some (alot) of that is pretty confusing to me.

(...)

> So I tried bigger:
> sudo xrandr --output DVI-I-1 --mode 1440x900 --fb 4096x2700 --panning
> 4096x2700
>
> Still no panning.

(...)

Let me try it....

Yes, it does not work for me either (using wheezy + intel card here) and
I used the sample given in xrandr man page so something seems broken or
not properly documented.

xrandr --fb 1600x600 --output LVDS1 --mode 1204x600 --panning 1600x0

This indeed makes "something" because when cursor reaches the right edge
of the screen there is a "sightly" movement but cursor does not go beyond
which is of course, wrong.

> I'm not getting heads or tails from the web page... can you take an
> educated guess what might work to give me a fair bit of panning room?

It should be enough with a simple:

xrandr --output DVI-I-1 --panning 2048 1536

But I can confirm that this is not working while it was months ago so
unless xrandr now needs puting things in a different way I dunno what's
going wrong :-?

Greetings,

--
Camaleón


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Old 10-01-2011, 02:56 PM
Brian
 
Default Virtual resolution for desktop

On Sat 01 Oct 2011 at 13:46:37 +0000, Camaleón wrote:

> It should be enough with a simple:
>
> xrandr --output DVI-I-1 --panning 2048 1536
>
> But I can confirm that this is not working while it was months ago so
> unless xrandr now needs puting things in a different way I dunno what's
> going wrong :-?

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=643693


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