- WLUG - wlug.mailman3.com

Re: [Wlug] Boston Globe article

by Scott Venier

On Mon, 17 Jun 2002, Bill Mills-Curran wrote: > One feature they mentioned that I have not encountered in the > UNIX/Linux/Gnu world is a collaborative whiteboard that allows > different users to share an electronic whiteboard. > > Has anyone seen anything like this in the open source community? > Ideally, it would be web-based so that it would not be specific to any > one client OS. > There's a java proram called bablyon that I found on freshmeat about a year ago. I haven't gone looking since then, but the choices were pretty slim at the time. Scott

June 18, 2002

Re: [Wlug] Laptop question - screen resolution

by doug waud

Andy Stewart wrote: > When I run X and then run xvidtune, when I'm in 1024x768 mode, it indicates a > refresh of 60 Hz. However, when I run in 800x600 mode, xvidtune thinks the > refresh rate is around 90Hz, and in 640x480 mode, xvidtune thinks the refresh > rate is 131 Hz(!). I'm not sure I believe it since I don't think the display > can handle that (but if it is true, am I seriously overdriving the display?). I don't think so. The usual concerns about cooking monitors arise out of the use of the horizontal sync on TV's etc to provide the 25 or so KV needed for electron acceleration. When you are generating 25 KV even at a very low current the power goes up a lot. Hence, the horizontal system is usually engineered near the limit and this is why it is dangerous to exceed those design values. The LCD panel does not have this electron accelerating potential so the above does not apply. > Also note that in the lower resolution modes, the display actually looks a > tad fuzzy. I am not using anti-aliased fonts. As already noted by Brian and Chuck, that is par for the course. An LCD is very simple. It is an array of dots 1024 by 768 in your case, 800 by 600 in mine. Thus the video driver expects exactly that number and, if you ask for anything else will either have to interpolate (hence the fuzzy) or just use a subset (the small screen Chuck notes). The bottom line is that using screen resolutions other than that innate to the screen is pointless. One exception of relevance to you as mother superior of WLUG. If you are in Kinnicutt and want to use the projector, you may have to drop back to a resolution the projector can digest. :-) Incidentally, if the 1024 by 768 gives fonts that are too small, you can usually change font size in the application (not a problem for you but I am getting to the point where eyesight limitations are starting to be noticeable :-( ) > Is this normal for laptops or am I doing something wrong? Yes, yes. :-) doug

June 18, 2002

Re: [Wlug] Laptop question - screen resolution

by Charles R. Anderson

On Mon, Jun 17, 2002 at 10:42:54PM -0400, Brian J.Conway wrote: bconway> Most LCDs are generally meant to be run at a single resolution and will bconway> look fuzzy at less than that. Try upping it, my Dell Inspiron 8000 with bconway> 15" screen looks crisp (and correct) at 1400x1050 but gets fuzzy at bconway> 1280x1024 and less. I'm not sure the real technical details on how those bconway> suckers work, that's just my experience. Yes, LCD's always run at the same resolution (the max that they advertise usually). To get the other "resolutions" there are two methods: 1. Use only the center area of the screen to display smaller resolutions. The border around the image is black. 1 pixel at the resolution you chose == 1 real pixel on the LCD. 2. Stretch the requested resolution to fill the entire area of the LCD. This method, obviously, must always look fuzzy, since you are using more than one "real" pixel to display a simulated pixel. 1 pixel at the resolution you chose > 1 real pixel on the LCD. You can usually select which method you want to use in the system BIOS. -- Charles R. Anderson <cra(a)wpi.edu> / http://angus.ind.wpi.edu/~cra/ PGP Key ID: 49BB5886 Fingerprint: EBA3 A106 7C93 FA07 8E15 3AC2 C367 A0F9 49BB 5886

June 18, 2002

Re: [Wlug] Laptop question - screen resolution

by Brian J.Conway

> When I run X and then run xvidtune, when I'm in 1024x768 mode, it > indicates a refresh of 60 Hz. However, when I run in 800x600 mode, > xvidtune thinks the refresh rate is around 90Hz, and in 640x480 mode, > xvidtune thinks the refresh rate is 131 Hz(!). I'm not sure I believe > it since I don't think the display can handle that (but if it is true, > am I seriously overdriving the display?). Chances are good your LCD screen is fixed at 60 Hz for all resolutions. > Also note that in the lower resolution modes, the display actually looks > a tad fuzzy. I am not using anti-aliased fonts. > > Is this normal for laptops or am I doing something wrong? Most LCDs are generally meant to be run at a single resolution and will look fuzzy at less than that. Try upping it, my Dell Inspiron 8000 with 15" screen looks crisp (and correct) at 1400x1050 but gets fuzzy at 1280x1024 and less. I'm not sure the real technical details on how those suckers work, that's just my experience. Brian J. Conway bconway(a)wpi.edu "Any man who can drive safely while kissing a pretty girl is simply not giving the kiss the attention it deserves." - Albert Einstein

June 18, 2002

Laptop question - screen resolution

by Andy Stewart

HI WLUG, My laptop has a 15" screen rated for 1024x768. I setup my laptop to have 3 resolutions in my XF86Config file: 1024x768 (default) 800x600 640x480 With XFree86 4.x, it appears that I don't explicitly need to specify a mode line any more (but I can if I wish). SuSE's configuration process puts a mode line in for me. When I run X and then run xvidtune, when I'm in 1024x768 mode, it indicates a refresh of 60 Hz. However, when I run in 800x600 mode, xvidtune thinks the refresh rate is around 90Hz, and in 640x480 mode, xvidtune thinks the refresh rate is 131 Hz(!). I'm not sure I believe it since I don't think the display can handle that (but if it is true, am I seriously overdriving the display?). Also note that in the lower resolution modes, the display actually looks a tad fuzzy. I am not using anti-aliased fonts. Is this normal for laptops or am I doing something wrong? Thanks, Andy -- Andy Stewart, Founder Worcester Linux Users' Group Worcester, MA USA http://www.wlug.org

June 18, 2002

Re: [Wlug] Javascript Help

by Wesley Allen

thanks, I'll try this out. Wes On Mon, 2002-06-17 at 19:14, Michael Frysinger wrote: > what i do is give the encapsulating element an id > id=f00 > then in the mouseover event, i just create a new > element, and set element f00 equal to it > then on mouseout, i restore the original table > in this way i have a bar on the right of mouseovers, > with the large center table changing > if you want some example code ill send it private like > -mike > > ----- Original Message ----- > From: "Wesley Allen" <wallen(a)charter.net> > To: <wlug(a)mail.wlug.org> > Sent: Saturday, June 15, 2002 16:49 > Subject: [Wlug] Javascript Help > > > > Guys, > > My Javascript + dhtml has always been one great hack. And, unlike the > > other scripting languages I use (all open source) there just doesn't > > seem to be a great "javascript community" on the web. Just lots of free > > samples (yes, i've googled, maybe not enough). > > > > Here's my problem. I've got a table and I want one column to be used > > to display the different links in each area. If I mouse over "about us" > > I want the other table to display the links for that area. > > > > when I do this outside a table, I just create a bunch of <div>'s that > > are hidden, and just Javascript to make them visible and raise their > > z-index at the proper time (yes, terrible hack, my javascript sucks). > > In the table, I'm not sure how to "stack" the different <div>'s. I > > though relative positioning would do the trick, because the parent for > > all of the <div>'s should be the <td> tag, but instead the <div>'s > > relatively position to one another. So, I'm kinda stuck. > > > > Any help you can give would be great, web sites with tutorials are > > great too. Pre-made scripts are ok, but I'm actually trying to learn > > something here. > > > > Thanks, > > Wes > > > > > > > > _______________________________________________ > > Wlug mailing list > > Wlug(a)mail.wlug.org > > http://mail.wlug.org/mailman/listinfo/wlug > > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug

June 18, 2002

Re: [Wlug] Javascript Help

by Michael Frysinger

what i do is give the encapsulating element an id id=f00 then in the mouseover event, i just create a new element, and set element f00 equal to it then on mouseout, i restore the original table in this way i have a bar on the right of mouseovers, with the large center table changing if you want some example code ill send it private like -mike ----- Original Message ----- From: "Wesley Allen" <wallen(a)charter.net> To: <wlug(a)mail.wlug.org> Sent: Saturday, June 15, 2002 16:49 Subject: [Wlug] Javascript Help > Guys, > My Javascript + dhtml has always been one great hack. And, unlike the > other scripting languages I use (all open source) there just doesn't > seem to be a great "javascript community" on the web. Just lots of free > samples (yes, i've googled, maybe not enough). > > Here's my problem. I've got a table and I want one column to be used > to display the different links in each area. If I mouse over "about us" > I want the other table to display the links for that area. > > when I do this outside a table, I just create a bunch of <div>'s that > are hidden, and just Javascript to make them visible and raise their > z-index at the proper time (yes, terrible hack, my javascript sucks). > In the table, I'm not sure how to "stack" the different <div>'s. I > though relative positioning would do the trick, because the parent for > all of the <div>'s should be the <td> tag, but instead the <div>'s > relatively position to one another. So, I'm kinda stuck. > > Any help you can give would be great, web sites with tutorials are > great too. Pre-made scripts are ok, but I'm actually trying to learn > something here. > > Thanks, > Wes > > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug >

June 17, 2002

Boston Globe article

by Bill Mills-Curran

http://digitalmass.boston.com/news/globe_tech/at_large/2002/0617.html Today's edition of the Boston Globe has an article about collaborative tools. Featured in the article is a product called SiteScape which I had seemed demo'd just last week. Many of the features of the collaborative tool set are familiar to me in other settings: email, IRC (for "immediate" stuff), news (for discussions) and version control to track document modifications. One feature they mentioned that I have not encountered in the UNIX/Linux/Gnu world is a collaborative whiteboard that allows different users to share an electronic whiteboard. Has anyone seen anything like this in the open source community? Ideally, it would be web-based so that it would not be specific to any one client OS. Thanks, Bill

June 17, 2002

Re: [Wlug] Xmon / Serial cable

by Skip Gaede

On Friday 14 June 2002 06:57, Skip Gaede wrote: > Folks, > > I'd like to try my hand at debugging the kernel boot process on a Macintosh > PPC. I have a couple of silly questions, though. > Folks, As an update, I was able to debug the boot process without resorting to a debugger. I found two techniques worked well: putting the kernel into an infinite loop at strategic points in the process, either unconditionally or based on the result of a test: for(;<test>;){int foo;foo++;} and/or using low level routines for displaying information on the console: ptext_drawstring, and ptext_drawhex; The fact that the bug I was chasing had to do with the nonrelocation of the console framebuffer made printing somewhat unreliable, The good news is that I found the bug, the kernel is mostly working, and the latest swapping code is much better than the 2.4.13 code I previously had access to. --Skip

June 17, 2002

RE:[SOLVED] [Wlug] Burning ISO's

by Simoncini, Matthew

Thanks everyone for their input and offers for burning 7.3 to CD's. I actually found what I needed with the existing burn software I have. It was under "Global Image or Other Image", in my case ISO is Other Image. -----Original Message----- From: David Goss [mailto:vze2bd6u@verizon.net] Sent: Friday, June 14, 2002 9:30 PM To: wlug(a)mail.wlug.org Subject: Re: [Wlug] Burning ISO's i've got 73 on cd if you need a copy... but from what i've seen so far don't rush into anyuthing... 72 with a couple kernal upgrades runs just as well... assimilation is futile dave goss ----- Original Message ----- From: "Keller, Tim" <Tim.Keller(a)stratus.com> To: <wlug(a)mail.wlug.org> Sent: Thursday, June 13, 2002 1:50 PM Subject: RE: [Wlug] Burning ISO's > Your other solution might be to bribe a member of wlug to make a copy of > their 7.3 disks in exchange for a free beer after the meeting tonight. > > unfortunately, 1. I don't drink beer and 2. I won't be able to attend, > otherwise I'd make a copy for you... > > Later, > Tim. > > -----Original Message----- > From: Simoncini, Matthew [mailto:Matthew.Simoncini@bsci.com] > Sent: Thursday, June 13, 2002 12:55 PM > To: 'wlug(a)mail.wlug.org' > Subject: [Wlug] Burning ISO's > > > Hi everyone, > > I recently downloaded the iso's for Red Hat 7.3 and wanted to burn them to > CD so I can install the distro on my home PC. I've never burned iso's > before, so this is new to me. I have the following setup: > > Work PC running Windows 2000 w/ iso images for Red Hat 7.3 saved to hard > drive > CD Burner > Prassi PrimoCD Plus 2.0 burner software by Veritas > > From the little that I know, I understand that iso images need to be burned > in a certain way rather than just copied to a CD-ROM. Can anyone point me to > a site or a particular program for burning iso's? > > Thanks. > > Matthew > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

June 17, 2002