[ltp] x31, dualview with xrandr and 1680x1050
come se fosse antani
linux-thinkpad@linux-thinkpad.org
Mon, 17 Dec 2007 22:07:54 +0100
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On Dec 17, 2007 9:39 PM, Alex Deucher <alexdeucher@gmail.com> wrote:
> On Dec 17, 2007 3:23 PM, come se fosse antani <antani@gmail.com> wrote:
> > On Dec 17, 2007 6:28 PM, Alex Deucher <alexdeucher@gmail.com> wrote:
> >
> > >
> > >
> > >
> > > On Dec 17, 2007 12:17 PM, come se fosse antani <antani@gmail.com>
> wrote:
> > > > On Dec 15, 2007 8:47 PM, Alex Deucher < alexdeucher@gmail.com>
> wrote:
> > > >
> > > > > On Dec 15, 2007 2:55 AM, Toens Bueker
> > > > >
> > > > >
> > > > >
> > > > > <toens.bueker@lists0903.nurfuerspam.neuroserve.de > wrote:
> > > > > > Hi *,
> > > > > >
> > > > > > at work I just received a new display. As I have just
> > > > > > changed from crt to tft at home, I thought, I could do the
> > > > > > same at work.
> > > > > >
> > > > > > At home I use a 19'' tft with 1280x1024 resolution. In
> > > > > > order to get more desktop space, I use xrandr to use the
> > > > > > lcd of the x31 and the tft in a dualview configuration:
> > > > > >
> > > > > > xrandr --output VGA-0 --right-of LVDS --mode 1280x1024 --rate
> 60
> > > > > >
> > > > > > At the same time I've changed the Virtual setting in
> > > > > > xorg.conf to (1024 + 1280 = 2304):
> > > > > >
> > > > > > Virtual 2304 1024
> > > > > >
> > > > > > Everything works as expected. With a windowmanager, which
> > > > > > supports xrandr (xmonad), windows can be moved between
> > > > > > screens but can display different virtual desktops as well.
> > > > > >
> > > > > > Now the problem: Changing the virtual line taking into
> > > > > > account the display size (1680x1050) of the tft at work, X
> > > > > > no longer starts. The virtual line in question is
> > > > > >
> > > > > > Virtual 2704 1818
> > > > > >
> > > > > > "X no longer starts" is probably wrong. Actually the lcd
> > > > > > of the x31 becomes dark, but if I look really close, I see
> > > > > > a dialog box (probably from gdm), but I cannot read the
> > > > > > error message.
> > > > > >
> > > > > > Any ideas? Is there anybody out there, who uses an x31
> > > > > > with a 1680x1050 tft in a dualview configuration?
> > > > >
> > > > > 2704x1818 =~ 19 MB at 4 bytes per pixel (depth 24) which is more
> vram
> > > > > than the chip has. If you are using depth 24, try switching to
> depth
> > > > > 16 which will cut you down to ~9.5 MB.
> > > > >
> > > > Hi.
> > > > Sorry for the thread hijacking.
> > > > I have a thinkpad x40 and I think the video chipset is the same as
> the
> > one
> > > > in the X31.
> > >
> > > It's not the same. the x40 is intel based.
> > >
> > >
> > > > How can I know the maximal resolution I can obtain in dual view?
> > > > I don't care about depth (16 would be fine) but I'd like to use a
> > 1440x900
> > > > on external vga since on non-16:9 resolutions my external lcd sucks.
> > >
> > > The intel driver works similarly to the radeon driver so the same
> > > things apply (more or less).
> > >
> > >
> > >
> >
> > can you point me to some resource to understand how the radeon/intel hw
> > works and which external resolution can I obtain?
>
> http://www.intellinuxgraphics.com/dualhead.html
>
thank you for the link.
In that page I can't found any information about the limit (of xrandr's
virtual size) that can reach the video chipset or how can I calculate it.
in the hardware matrix I found only one laptop with my chipset, the 855GM.
it's a Dell Latitude D505 and the user says that he was able with
915resolution to set the res to 1400x1050. Googling for this laptop I found
that the 15'' has an internal LCD with a max res of 1400x1050, so I would
guess that he's not speaking about external resolution.
I tried with gutsy with the new xorg configuration tools (for both internal
and external resolution) but with no luck: either the external LCD gives me
a "input not supported" or X.org doesnt start at all.
can you give some (more) resources to read to understand this points?
thanks,
antani
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<br><br><div class="gmail_quote">On Dec 17, 2007 9:39 PM, Alex Deucher <<a href="mailto:alexdeucher@gmail.com">alexdeucher@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><div></div><div class="Wj3C7c">On Dec 17, 2007 3:23 PM, come se fosse antani <<a href="mailto:antani@gmail.com">antani@gmail.com</a>> wrote:<br>> On Dec 17, 2007 6:28 PM, Alex Deucher <<a href="mailto:alexdeucher@gmail.com">
alexdeucher@gmail.com</a>> wrote:<br>><br>> ><br>> ><br>> ><br>> > On Dec 17, 2007 12:17 PM, come se fosse antani <<a href="mailto:antani@gmail.com">antani@gmail.com</a>> wrote:<br>> > > On Dec 15, 2007 8:47 PM, Alex Deucher <
<a href="mailto:alexdeucher@gmail.com">alexdeucher@gmail.com</a>> wrote:<br>> > ><br>> > > > On Dec 15, 2007 2:55 AM, Toens Bueker<br>> > > ><br>> > > ><br>> > > >
<br>> > > > <<a href="mailto:toens.bueker@lists0903.nurfuerspam.neuroserve.de">toens.bueker@lists0903.nurfuerspam.neuroserve.de</a> > wrote:<br>> > > > > Hi *,<br>> > > > ><br>
> > > > > at work I just received a new display. As I have just<br>> > > > > changed from crt to tft at home, I thought, I could do the<br>> > > > > same at work.<br>> > > > >
<br>> > > > > At home I use a 19'' tft with 1280x1024 resolution. In<br>> > > > > order to get more desktop space, I use xrandr to use the<br>> > > > > lcd of the x31 and the tft in a dualview configuration:
<br>> > > > ><br>> > > > > xrandr --output VGA-0 --right-of LVDS --mode 1280x1024 --rate 60<br>> > > > ><br>> > > > > At the same time I've changed the Virtual setting in
<br>> > > > > xorg.conf to (1024 + 1280 = 2304):<br>> > > > ><br>> > > > > Virtual 2304 1024<br>> > > > ><br>> > > > > Everything works as expected. With a windowmanager, which
<br>> > > > > supports xrandr (xmonad), windows can be moved between<br>> > > > > screens but can display different virtual desktops as well.<br>> > > > ><br>> > > > > Now the problem: Changing the virtual line taking into
<br>> > > > > account the display size (1680x1050) of the tft at work, X<br>> > > > > no longer starts. The virtual line in question is<br>> > > > ><br>> > > > > Virtual 2704 1818
<br>> > > > ><br>> > > > > "X no longer starts" is probably wrong. Actually the lcd<br>> > > > > of the x31 becomes dark, but if I look really close, I see<br>> > > > > a dialog box (probably from gdm), but I cannot read the
<br>> > > > > error message.<br>> > > > ><br>> > > > > Any ideas? Is there anybody out there, who uses an x31<br>> > > > > with a 1680x1050 tft in a dualview configuration?
<br>> > > ><br>> > > > 2704x1818 =~ 19 MB at 4 bytes per pixel (depth 24) which is more vram<br>> > > > than the chip has. If you are using depth 24, try switching to depth<br>> > > > 16 which will cut you down to ~9.5 MB.
<br>> > > ><br>> > > Hi.<br>> > > Sorry for the thread hijacking.<br>> > > I have a thinkpad x40 and I think the video chipset is the same as the<br>> one<br>> > > in the X31.
<br>> ><br>> > It's not the same. the x40 is intel based.<br>> ><br>> ><br>> > > How can I know the maximal resolution I can obtain in dual view?<br>> > > I don't care about depth (16 would be fine) but I'd like to use a
<br>> 1440x900<br>> > > on external vga since on non-16:9 resolutions my external lcd sucks.<br>> ><br>> > The intel driver works similarly to the radeon driver so the same<br>> > things apply (more or less).
<br>> ><br>> ><br>> ><br>><br>> can you point me to some resource to understand how the radeon/intel hw<br>> works and which external resolution can I obtain?<br><br></div></div><a href="http://www.intellinuxgraphics.com/dualhead.html" target="_blank">
http://www.intellinuxgraphics.com/dualhead.html</a><br><div><div></div></div></blockquote><div>thank you for the link.<br>In that page I can't found any information about the limit (of xrandr's virtual size) that can reach the video chipset or how can I calculate it.
<br>in the hardware matrix I found only one laptop with my chipset, the 855GM. it's a Dell Latitude D505 and the user says that he was able with 915resolution to set the res to 1400x1050. Googling for this laptop I found that the 15'' has an internal LCD with a max res of 1400x1050, so I would guess that he's not speaking about external resolution.
<br>I tried with gutsy with the new xorg configuration tools (for both internal and external resolution) but with no luck: either the external LCD gives me a "input not supported" or <a href="http://X.org">X.org
</a> doesnt start at all.<br>can you give some (more) resources to read to understand this points?<br><br>thanks,<br>antani<br></div></div>
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