[ltp] x31, dualview with xrandr and 1680x1050
come se fosse antani
linux-thinkpad@linux-thinkpad.org
Mon, 17 Dec 2007 18:17:41 +0100
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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.
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.
thank you,
antani
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On Dec 15, 2007 8:47 PM, Alex Deucher <<a href="mailto:alexdeucher@gmail.com">alexdeucher@gmail.com</a>> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Dec 15, 2007 2:55 AM, Toens Bueker<br><div><div></div><div class="Wj3C7c"><<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></div></div>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><font color="#888888"></font></blockquote><div>Hi.<br>Sorry for the thread hijacking.<br>I have a thinkpad x40 and I think the video chipset is the same as the one in the X31.
<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 1440x900 on external vga since on non-16:9 resolutions my external lcd sucks.
<br><br>thank you,<br>antani<br></div></div>
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