Wide screen LCD monitors and X

Ogre wrote: *** and top-posted - fixed ***
> Harold Weissman wrote:
>
>> I am thinking to buy a wide screen LCD monitor, but I seem to
>> recall having heard rumors about difficulties configuring X to
>> support the resolutions (such as 1680x1050) that such monitors
>> offer. Is there any truth in this? If anybody has experience
>> with this type of monitors your feedback would be much
>> appreciated.
>
> At work I'm running dual 24" flat screens at 1680x1050 each.
> Lots of desktop space. This is using an nvidia video card
> (forget which model) under Ubuntu. At home I have dual 22" flat
> screens but haven't configured for dual screen model. I have an
> ATI card at home, which seems to be a little trickier when it
> comes to dual screen configuration. Since I'm planning to get
> an Nvidia card very soon, I decided to not bother with fighting
> with the ATI configuration.

Please do not top-post. Your answer belongs after (or intermixed
with) the quoted material to which you reply, after snipping all
irrelevant material. See the following links:

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Darren Salt wrote:
>> for dual screen model. I have an ATI card at home, which seems to be a
>> little trickier when it comes to dual screen configuration. Since I'm
>> planning to get an Nvidia card very soon, I decided to not bother with
>> fighting with the ATI configuration.
>[snip]
>
>Something like this, using the X.org ATI driver. (I have no idea whether
>it'll work with the taintware.) "Left monitor" is connected to the VGA
>("CRT2") output, and "Right monitor" is connected to the DVI output.
....

I've snipped the hints about what to use and why for
brevity; they were good points.

I would have a couple of problems with this
configuration though.

>[...]
>Section "Device"
> Identifier "Radeon 9200"
> Driver "radeon"
> Option "AGPMode" "8"
> Option "AGPFastWrite" "On"
> Option "AGPSize" "128"
> Option "DynamicClocks" "on"
> Option "RenderAccel" "On"
> Option "AccelMethod" "EXA"
> Option "AccelDFS" "on"
> Option "EnablePageFlip" "On"
> Option "SubPixelOrder" "NONE"
> Option "MergedFB" "On"
> Option "MergedNonRectangular" "On"
># Option "MergedXineramaCRT2IsScreen0" "1"
> Option "CRT2Position" "LeftOf"
> Option "MetaModes" "1280x1024-1280x1024 1024x768-1024x768 800x600-800x600 640x480-640x480 1280x1024 1024x768 800x600 640x480"
>EndSection

Here's my device section, with added comments.

Section "Device"
# for Left Monitor
Identifier "9200SE-0"
Driver "radeon"
BusID "PCI:01:05:00"
Screen 0
Option "MonitorLayout" "Auto, Auto"
Option "AGPMode" "4"
Option "AGPFastWrite" "ON"
Option "EnablePageFlip" "ON"
EndSection

It's been a long time since I worked that out, but I
recall trying each of these options separately to
determine which did or did not work. I cannot remember
why I have AGPMODE set to 4 or what difference it might
make, for example. The others I don't think are needed,
with the exception of "MergedNonRectangular" for the
(snipped) reasons mentioned, though I didn't need it
because I have two similar sized 19" LCDs.

But the one point of significance is that (much to my
annoyance) I simply could *not* tolerate the new
MergedFB mode! My two LCD's are slightly different, and
also of course one has a digital interface and the other
is using the analog interface, hence I need to be able
to make separate gamma and color management adjustments
to them. The MergedFB does not allow that! It has one
buffer and any adjustment is for the entire buffer.
Total bummer...

Hence I continue to use the xinerama option, enabled in
the ServerLayout section:

Section "ServerLayout"
Identifier "Layout1"

# The Matrox driver documention lists other layouts
Screen "Screen0"
Screen "Screen1" RightOf "Screen0"

#Xinerama mode joins the screens into one desktop.
Option "Xinerama"

InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection

>Section "Monitor"
> Identifier "Left monitor"
> Option "DPMS"
>EndSection

And for various reasons I use a more complex "Monitor"
section:

Section "Monitor"
Identifier "Monitor0"
HorizSync 30-80
VertRefresh 75
Gamma 1.1
Option "DPMS"
EndSection

Note the Gamma adjustment per monitor (the other monitor
is set to 0.9). I also lock a particular set of modes
into use by specifying the VertRefresh at only 75 Hz
rather than a range, which is peculiar to my monitor and
choice of available resolutions rather than something of
general use. I don't recall if I needed the HorizSync
range specified or not in this case, but have seen
instances where some modes resulted in a horizontal sync
rate that was greater than the default range for
HorizSync, and X would not run (the LCD monitor could
care less, of course).

Between Darren's examples and mine, I think we both want
to make the point that a dual monitor configurationw for
the radeon driver is perhaps more complex than some, but
it is quite doable, and with some starting examples and
comments on the experiences that others have had,
shouldn't slow anyone down much... (famous last words,
eh?).

Now, if you want an *obnoxiously* difficult thing to set
up, I had an HP ZE4900 laptop with an Intel i810 video
card. That was difficult.

--
Floyd L. Davidson
Ukpeagvik (Barrow, Alaska) floyd-at-apaflo.com

Harold Weissman wrote:
> On Mon, 04 Jun 2007 14:55:39 +0000, Kevin the Drummer wrote:
> > Harold Weissman wrote:
> >> I am thinking to buy a wide screen LCD monitor, but I seem to
> >> recall having heard rumors about difficulties configuring X to support
> >> the resolutions (such as 1680x1050) that such monitors offer. Is there
> >> any truth in this? If anybody has experience with this type of monitors
> >> your feedback would be much appreciated.
> >
> > I bought a ViewSonic VX2245 last Friday at Costco. It hooked up to
> > Mandriva 2007.0 with an nVidia FX6600 card without any problems at all.
> > I'm runnng it at 1680x1050. I like it a lot.
>
> Thanks for your reply, which I find encouraging, taking into
> account that I have an nVidia card - a 7100GS, I believe. Now does your
> setup work with both the X.Org driver nv and the nVidia driver nvidia?
> Also did you have to tinker with your xorg.conf file, or it did just work?

I'm running Mandriva 2007.0. I used the system admin GUI, mcc, to
choose my nVidia driver after I installed the card. I had a bit of
trouble since the card was an "upgrade" from an ATI card, and portions
of the ATI installation didn't get removed, which prevented the nVidia
stuff from being fully installed. After sorting that out, then just
choosing the nVidia driver from the list, choosing the resolution and
color depth was enough. As for the display, its new enough to not
appear in the list of ViewSonic displays. So, I selected a generic LCD
of 1680x1050 resolution. After that everything just worked.

G'luck....

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Unless otherwise noted, the statements herein reflect my personal
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On Mon, 04 Jun 2007 21:20:17 -0400, CBFalconer wrote:

> Please do not top-post. Your answer belongs after (or intermixed with)
> the quoted material to which you reply, after snipping all irrelevant
> material. See the following links:

The reply was to my post, and I happen to prefer answers to my
questions as top-postings.

Harold Weissman wrote:
> On Mon, 04 Jun 2007 21:20:17 -0400, CBFalconer wrote:
>
>> Please do not top-post. Your answer belongs after (or intermixed
>> with) the quoted material to which you reply, after snipping all
>> irrelevant material. See the following links:
>
> The reply was to my post, and I happen to prefer answers to my
> questions as top-postings.

Then you should be using e-mail. Not Usenet.

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On Tue, 05 Jun 2007 23:22:22 -0400, CBFalconer wrote:

> Harold Weissman wrote:
>> On Mon, 04 Jun 2007 21:20:17 -0400, CBFalconer wrote:
>>
>>> Please do not top-post. Your answer belongs after (or intermixed
>>> with) the quoted material to which you reply, after snipping all
>>> irrelevant material. See the following links:
>>
>> The reply was to my post, and I happen to prefer answers to my
>> questions as top-postings.
>
> Then you should be using e-mail. Not Usenet.

Top-posting is a matter of style. Some people like it, some
people don't. Fortunately, self-appointed Usenet police have no power to
enforce their particular preference.

Harold Weissman writes:

> On Tue, 05 Jun 2007 23:22:22 -0400, CBFalconer wrote:
>
>> Harold Weissman wrote:
>>> On Mon, 04 Jun 2007 21:20:17 -0400, CBFalconer wrote:
>>>
>>>> Please do not top-post. Your answer belongs after (or intermixed
>>>> with) the quoted material to which you reply, after snipping all
>>>> irrelevant material. See the following links:
>>>
>>> The reply was to my post, and I happen to prefer answers to my
>>> questions as top-postings.
>>
>> Then you should be using e-mail. Not Usenet.
>
> Top-posting is a matter of style. Some people like it, some
> people don't. Fortunately, self-appointed Usenet police have no power to
> enforce their particular preference.

Disagree.

It is a method of communications.

When someone talks to you in one language and you reply
in another, it is impolite.

Which method is a better method could be argued.

But to break into a conversation and change the protocol
is rude.

As for enforcing, you are right there is no way to enforce
a style. My own technique is mention once, then ignore
the person after the second violation.

CBFalconer writes:

>Harold Weissman wrote:
>> On Mon, 04 Jun 2007 21:20:17 -0400, CBFalconer wrote:
>>
>>> Please do not top-post. Your answer belongs after (or intermixed
>>> with) the quoted material to which you reply, after snipping all
>>> irrelevant material. See the following links:
>>
>> The reply was to my post, and I happen to prefer answers to my
>> questions as top-postings.

>Then you should be using e-mail. Not Usenet.

And you should get a life ratehr than pretending to be a net cop.
If you do not like his posts jus kill file him. YOu are never going to come
up with useful answers anyway.


>--
>
>
>
>
> cbfalconer at maineline dot net


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On Wed, 06 Jun 2007 12:40:22 -0400, Dan Espen wrote:

> Harold Weissman writes:
>
>> On Tue, 05 Jun 2007 23:22:22 -0400, CBFalconer wrote:
>>
>>> Harold Weissman wrote:
>>>> On Mon, 04 Jun 2007 21:20:17 -0400, CBFalconer wrote:
>>>>
>>>>> Please do not top-post. Your answer belongs after (or intermixed
>>>>> with) the quoted material to which you reply, after snipping all
>>>>> irrelevant material. See the following links:
>>>>
>>>> The reply was to my post, and I happen to prefer answers to my
>>>> questions as top-postings.
>>>
>>> Then you should be using e-mail. Not Usenet.
>>
>> Top-posting is a matter of style. Some people like it, some
>> people don't. Fortunately, self-appointed Usenet police have no power
>> to enforce their particular preference.
>
> Disagree.
>
> It is a method of communications.
>
> When someone talks to you in one language and you reply in another, it
> is impolite.
>
> Which method is a better method could be argued.

Exactly. That's my point. I do prefer top-posting.

> But to break into a conversation and change the protocol is rude.

So if the very first answer to a question is a top-post, so
should any subsequent answers?

Harold Weissman wrote:
> On Tue, 05 Jun 2007 23:22:22 -0400, CBFalconer wrote:
>> Harold Weissman wrote:
>>> On Mon, 04 Jun 2007 21:20:17 -0400, CBFalconer wrote:
>>>
>>>> Please do not top-post. Your answer belongs after (or intermixed
>>>> with) the quoted material to which you reply, after snipping all
>>>> irrelevant material. See the following links:
>>>
>>> The reply was to my post, and I happen to prefer answers to my
>>> questions as top-postings.
>>
>> Then you should be using e-mail. Not Usenet.
>
> Top-posting is a matter of style. Some people like it, some people
> don't. Fortunately, self-appointed Usenet police have no power to
> enforce their particular preference.

True. However reminding people about such normal Usenet
conventions seems to reduce the violation level. Anyhow, thanks
for co-operating.

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cbfalconer at maineline dot net



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