Multiheaded X-terminal setup.
Dear all. I have an idea of setting up a mulitheaded linux box, i.e. with N displays. keyboards and mice. if i get several PCI videocards (e.g. Matrox's milleniums) several USB keyboards and USB mice, and attach all that stuff, will i be able to set up X-servers so that i have several different X-Terminals running at the same time on one box? I am not sure that this is possible, can anyone advise me something? If i succeed, this will be the most perfect solution for student computer classes (since i am pushing linux for use in !!! can i set up a similar dual-terminal box using a Dualheaded Matrox G400? (with two USB keyboards and two USB mice) ? Thanx for your help in advance!
* Vitaly Shishakov
Dear all.
I have an idea of setting up a mulitheaded linux box, i.e. with N displays. keyboards and mice.
if i get several PCI videocards (e.g. Matrox's milleniums) several USB keyboards and USB mice, and attach all that stuff, will i be able to set up X-servers so that i have several different X-Terminals running at the same time on one box?
I am not sure that this is possible, can anyone advise me something? If i succeed, this will be the most perfect solution for student computer classes (since i am pushing linux for use in !!!
can i set up a similar dual-terminal box using a Dualheaded Matrox G400? (with two USB keyboards and two USB mice) ?
This is not possible (unless you're willing to do some serious kernel and XFree hacking ;) ) Multihead is, multi keyboard is not. And while Xfree 4 can drive more than one monitor, I don;t think the 3 or more monitor setup is very stable. Geting a dual head videocard (matrox or NVidia) will make for a likely more stable system than playing around with many single head video boards. I've done a fair bit of experimenting with dual videocard setups and foudn that X isn;t all that stable if you have 2 different videoboards. Having 2 identical boards is supposed to be more stable, but I never tried that. I eventually gave up and wnet for the dualhead NVidia boards (for my suers) and a single 1600x1200 card for myself. Kind regards, -- Gerhard den Hollander Phone +31-10.280.1515 Global Technical Support Fax +31-10.280.1511 Jason Geosystems BV (When calling please note: we are in GMT+1) gdenhollander@jasongeo.com POBox 1573 visit us at http://www.jasongeo.com 3000 BN Rotterdam JASON.......#1 in Reservoir Characterization The Netherlands This e-mail and any attachment is/are intended solely for the named addressee(s) and may contain information that is confidential and privileged. If you are not the intended recipient, we request that you do not disseminate, forward, distribute or copy this e-mail message. If you have received this e-mail message in error, please notify us immediately by telephone and destroy the original message.
* Gerhard den Hollander [Mon, 15 Oct 2001 20:07:08 +0200]:
* Vitaly Shishakov
(Mon, Oct 15, 2001 at 09:05:41PM +0400)
And while Xfree 4 can drive more than one monitor, I don;t think the 3 or more monitor setup is very stable.
Rest assured, it is ;-) Last year at Linuxtag (Germanys largest Linux event) XFree86 demoed X running with 12 monitors/cards. The monitors were stacked 4x3 making a nice display running across all twelve, though I wouldn't recommend anything that needs quick changing displays on that as it took noticable time to draw all screens :-) Philipp -- "The idea that Bill Gates has appeared like a knight in shining armour to lead all customers out of a mire of technological chaos neatly ignores the fact that it was he who, by peddling second-rate technology, led them into it in the first place." - Douglas Adams in Guardian, 25-Aug-95
--- Gerhard den Hollander
* Vitaly Shishakov
(Mon, Oct 15, 2001 at 09:05:41PM +0400) I have an idea of setting up a mulitheaded linux box, i.e. with N displays. keyboards and mice.
This is not possible (unless you're willing to do some serious kernel and XFree hacking ;) ) Multihead is, multi keyboard is not.
Though doable, this doesn't sound like fun at all.
And while Xfree 4 can drive more than one monitor, I don;t think the 3 or more monitor setup is very stable.
Unless you had a Matrox G200MM, which brings me to my biggest concern, later...
Geting a dual head videocard (matrox or NVidia) will make for a likely more stable system than playing around with many single head video boards.
Precisely. I had a PM2/AGP and a PM2/PCI running side-by-side in my machine once in a Xinerama configuration, and it ran like poo (much slower than even using the PCI card by itself). Performance and hacking aside, my biggest concern is COST. For less than $320US, you can have an entire ThinkNIC desktop unit including a monitor, keyboard, speakers, mouse, and everything else it needs to run. It boots from a CD, can be configured as an ethernet-based X terminal, and even has a bit of computational horsepower on it's own (200MHz VIA [Cyrix] MII processor). There is also an International version of this unit with support for non-US keyboards and layouts, but I do not have pricing ready. I was playing with one of these only a few weeks ago, and it was very, very cool! It has a 3MB Disk-on-Chip thingie that stores all of the configuration data, a 24x CD-ROM, no hard disk, and 64MB of RAM out of the box. The reason I was playing with it specifically was to install a 256MB, low-profile DIMM (about $45US) and a K6-2 450 processor (about $50US?) in it. Aside from the fact that the bus is only 66MHz, the multiplier only goes up to 5.5x, and subsequently, we couldn't get it over 363MHz, all was great! Combining this with my limited knowledge of the SuSE Live Evaluation CD-ROM, if you could get the DoC-thingie into read-write mode, mount /home from an NFS server, and just upgrade the RAM, you'd have far more than a dumb X terminal, only loading your "central" box with file I/O. I've already figured out how to mount /home on different partitions than the loop, BTW, all you have to do is change the fstab. Figure $400 per seat with a RAM upgrade for each box, and just using the ThinkNIC CD-ROM with remote X support, and you'd be golden. How many seats are we talking about, Vitaly? ===== -- -=|JP|=- Hit me! - http://www.xanga.com/cowboydren/ Jon Pennington | Debian 2.3 -o) cowboydren @ yahoo . com | Auto Enthusiast /\\ Kansas City, MO, USA | ICQ UIN 69 67 29 31 _\_V __________________________________________________ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com
I believe what you are looking for is what I call a dumb terminal. A "computer" with almost no hardware of it's own that typically runs off the serial port of a server. This is similar to the setup of an mainframe. This setup is extreamly easy to do, there is even a project that not only offers software that is all but preconfigured but also suggestions on hardware and styles of setting it up. Check out www.ltsp.org it may have some very valuable information for you. Austin Morgan On Mon, Oct 15, 2001 at 08:07:08PM +0200, Gerhard den Hollander wrote:
* Vitaly Shishakov
(Mon, Oct 15, 2001 at 09:05:41PM +0400) Dear all.
I have an idea of setting up a mulitheaded linux box, i.e. with N displays. keyboards and mice.
if i get several PCI videocards (e.g. Matrox's milleniums) several USB keyboards and USB mice, and attach all that stuff, will i be able to set up X-servers so that i have several different X-Terminals running at the same time on one box?
I am not sure that this is possible, can anyone advise me something? If i succeed, this will be the most perfect solution for student computer classes (since i am pushing linux for use in !!!
can i set up a similar dual-terminal box using a Dualheaded Matrox G400? (with two USB keyboards and two USB mice) ?
This is not possible (unless you're willing to do some serious kernel and XFree hacking ;) ) Multihead is, multi keyboard is not.
And while Xfree 4 can drive more than one monitor, I don;t think the 3 or more monitor setup is very stable.
Geting a dual head videocard (matrox or NVidia) will make for a likely more stable system than playing around with many single head video boards.
I've done a fair bit of experimenting with dual videocard setups and foudn that X isn;t all that stable if you have 2 different videoboards. Having 2 identical boards is supposed to be more stable, but I never tried that.
I eventually gave up and wnet for the dualhead NVidia boards (for my suers) and a single 1600x1200 card for myself.
-- __ __ ____ ____ | \/ |/ ___/ ___| Austin Morgan | |\/| | | \___ \ Morgan Computer Services | | | | |___ ___) | 501-857-1189 |_| |_|\____|____/ www.morgancomputers.net
participants (5)
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Austin Morgan
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Gerhard den Hollander
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Jon Pennington
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philippt@t-online.de
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Vitaly Shishakov