August 2009 - WLUG - wlug.mailman3.com

Re: [Wlug] Here I am begging again.

by Randall Mason

I thought the whole big deal about refresh rates on LCDs is that they actually have a florescent light in the back of them that shines through the liquid crystal. I've noticed that it's less of a big deal with LCDs though... -Randall On Thu, Aug 20, 2009 at 3:14 PM, Jim Dibb <jimdibb(a)gmail.com> wrote: > I don't think refresh rate applies to LCDs in the 'flicker' sense at all. > Refresh is for scanning (crt) displays that have to keep scanning or the > phosphor pixels fade out. > > LCD pixels are 'ON' or 'OFF' they don't fade out between refreshes. > > I believe the new hype on the 120 or 240 Hz refresh on big lcd tvs is all > about motion interpolation, not flicker. Since the source video framerate > is still only 24 or 30 Hz. > > > On Thu, Aug 20, 2009 at 3:04 PM, Richard Klein <richspk(a)gmail.com> wrote: > >> On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve(a)ssgreenberg.name> >> wrote: >> > I have a Samsung SyncMaster 204B, but it is on a Windows PC. >> > >> > As for the frequency, 60 Hz is not good in close proximity to >> > fluorescent lights. >> > >> > I had a lot of visual defects in two different units, until I changed >> > to 120 Hz(I think). >> >> That's true with CRTs. I think it may be less important with LCDs. I >> have a SyncMaster 213T at home, and if you use the DVI port you have >> no choice but 60 Hz. I've never noticed any flicker from it. Most of >> the lighting in my apartment is CFLs. >> >> -- >> Rich >> Sent from Marlborough, MA, United States >> _______________________________________________ >> 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 > >

Aug. 20, 2009

Re: [Wlug] Here I am begging again.

by jrm8005＠gmail.com

> I don't think refresh rate applies to LCDs in the 'flicker' sense at all. > Refresh is for scanning (crt) displays that have to keep scanning or the > phosphor pixels fade out. > > LCD pixels are 'ON' or 'OFF' they don't fade out between refreshes. > > I believe the new hype on the 120 or 240 Hz refresh on big lcd tvs is all > about motion interpolation, not flicker. Since the source video framerate > is still only 24 or 30 Hz. Interesting! > > On Thu, Aug 20, 2009 at 3:04 PM, Richard Klein <richspk(a)gmail.com> wrote: > >> On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve(a)ssgreenberg.name> >> wrote: >> > I have a Samsung SyncMaster 204B, but it is on a Windows PC. >> > >> > As for the frequency, 60 Hz is not good in close proximity to >> > fluorescent lights. >> > >> > I had a lot of visual defects in two different units, until I changed >> > to 120 Hz(I think). >> >> That's true with CRTs. I think it may be less important with LCDs. I >> have a SyncMaster 213T at home, and if you use the DVI port you have >> no choice but 60 Hz. I've never noticed any flicker from it. Most of >> the lighting in my apartment is CFLs. >> >> -- >> Rich >> Sent from Marlborough, MA, United States >> _______________________________________________ >> Wlug mailing list >> Wlug(a)mail.wlug.org >> http://mail.wlug.org/mailman/listinfo/wlug >>

Aug. 20, 2009

Re: [Wlug] Here I am begging again.

by Jim Dibb

I don't think refresh rate applies to LCDs in the 'flicker' sense at all. Refresh is for scanning (crt) displays that have to keep scanning or the phosphor pixels fade out. LCD pixels are 'ON' or 'OFF' they don't fade out between refreshes. I believe the new hype on the 120 or 240 Hz refresh on big lcd tvs is all about motion interpolation, not flicker. Since the source video framerate is still only 24 or 30 Hz. On Thu, Aug 20, 2009 at 3:04 PM, Richard Klein <richspk(a)gmail.com> wrote: > On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve(a)ssgreenberg.name> > wrote: > > I have a Samsung SyncMaster 204B, but it is on a Windows PC. > > > > As for the frequency, 60 Hz is not good in close proximity to > > fluorescent lights. > > > > I had a lot of visual defects in two different units, until I changed > > to 120 Hz(I think). > > That's true with CRTs. I think it may be less important with LCDs. I > have a SyncMaster 213T at home, and if you use the DVI port you have > no choice but 60 Hz. I've never noticed any flicker from it. Most of > the lighting in my apartment is CFLs. > > -- > Rich > Sent from Marlborough, MA, United States > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug >

Aug. 20, 2009

Re: [Wlug] Here I am begging again.

by jrm8005＠gmail.com

> On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve(a)ssgreenberg.name> wrote: >> I have a Samsung SyncMaster 204B, but it is on a Windows PC. >> >> As for the frequency, 60 Hz is not good in close proximity to >> fluorescent lights. >> >> I had a lot of visual defects in two different units, until I changed >> to 120 Hz(I think). > > That's true with CRTs. I think it may be less important with LCDs. I > have a SyncMaster 213T at home, and if you use the DVI port you have > no choice but 60 Hz. I've never noticed any flicker from it. Most of > the lighting in my apartment is CFLs. The only reason CRT flicker bothers the eye is because of the time it takes the electron guns to return to the top of the screen. Since LCDs don't have an electron gun (I think the whole screen refreshes at once), the flicker is not really noticeable since there is no waiting for the gun to reposition. > > -- > Rich > Sent from Marlborough, MA, United States > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug

Aug. 20, 2009

Re: [Wlug] Here I am begging again.

by Richard Klein

On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve(a)ssgreenberg.name> wrote: > I have a Samsung SyncMaster 204B, but it is on a Windows PC. > > As for the frequency, 60 Hz is not good in close proximity to > fluorescent lights. > > I had a lot of visual defects in two different units, until I changed > to 120 Hz(I think). That's true with CRTs. I think it may be less important with LCDs. I have a SyncMaster 213T at home, and if you use the DVI port you have no choice but 60 Hz. I've never noticed any flicker from it. Most of the lighting in my apartment is CFLs. -- Rich Sent from Marlborough, MA, United States

Aug. 20, 2009

getting rid of some monitors

by Jared Greenwald

I apologize in advance for spamming the list with my want ad. I need to get rid of some CRT monitors and am wondering if anyone on the list would be interested. They are as follows... 1x Gateway Vivitron (circa '95) 17" 1x Compaq MV940 19" 2x Digital re-branded Trinitron 21" (matched pair) The 19" and 21" monitors can each run at 1600x1200 and the 21s have dual input, which is nice. I used the 21s in a TwinView setup on my main Ubuntu-based workstation at home for years until I got a LCD last Christmas. I have power/video cables for all of them, so they are ready to roll. I had them up on craigslist to try and sell them, but haven't gotten any hits and it's just time to clear out the space. The catch is that you would need to come pick them up from me in Uxbridge. Please respond to me privately so we don't spam the list. Thanks, Jared Greenwald

Aug. 20, 2009

Re: [Wlug] Here I am begging again.

by Steven Greenberg

I have a Samsung SyncMaster 204B, but it is on a Windows PC. As for the frequency, 60 Hz is not good in close proximity to fluorescent lights. I had a lot of visual defects in two different units, until I changed to 120 Hz(I think). /Steve -- Steven Greenberg Email: steve(a)ssgreenberg.name 251 Holland Rd. Phone: (774)241-0095 Fiskdale, Massachusetts 01518-1231 Web: http://www.ssgreenberg.name Other Email: s.greenberg(a)ieee.org ssg(a)alum.mit.edu

Aug. 20, 2009

Re: [Wlug] Here I am begging again.

by Ken Jones

The only reference I can find in the Samsung manual (a CD) is to linux running on a PC. I am not getting very far on the WEB either... Hmmmm. I can still get into my machines via HyperTerminal or putty, but I would prefer direct connection. Ken ----- Original Message ----- From: <jrm8005(a)gmail.com> To: <kjones(a)ziplink.net>; <wlug(a)mail.wlug.org> Cc: <kjones57(a)alum.mit.edu> Sent: Thursday, August 20, 2009 1:43 PM Subject: Re: [Wlug] Here I am begging again. >> I have not been making the meetings. That does not mean my SUN ULTRA1 >> running Aurora Linux can no longer create 'interesting' problems. This >> time >> the second SUN ULTRA running Gentoo is in cahoots. >> >> I have a new SAMSUNG SyncMaster flat screen monitor. I have attached >> this >> monitor via a Belkin SUN adapter to my ULTRA1's. It does not work!! The >> monitor flashes a little square window saying something about "Not >> optimum >> mode". It feels that it has not been configured correctly. The buttons >> on >> the right of the monitor, which are there to set it up, also do not work >> with the SUN's is attached. >> >> The monitor works fine with PC type machinery. The Belkin worked fine >> with >> a regular old tube monitor. (I have not dug out the old monitor to check >> whether it still works. I suspect it does.) >> >> Anybody have any ideas? > > Did your monitor come with a manual? If so, you should be able to > find the supported modes listed in a table. Check that your > X/drivers/dongle/etc are using a mode in that table. > >> >> Ken Jones >> kjones(a)ziplink.net >> >> _______________________________________________ >> Wlug mailing list >> Wlug(a)mail.wlug.org >> http://mail.wlug.org/mailman/listinfo/wlug > > > > > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.19.7/1232 - Release Date: 1/18/2008 > 7:32 PM > >

Aug. 20, 2009

Re: [Wlug] Here I am begging again.

by jrm8005＠gmail.com

> The only reference I can find in the Samsung manual (a CD) is to linux > running on a PC. I am not getting very far on the WEB either... Hmmmm. I > can still get into my machines via HyperTerminal or putty, but I would > prefer direct connection. Well, if you can't find anything... if you're running the newest X11, you should be able to delete your xorg.conf and the driver should know what to do. If it doesn't, there could be something fishy with your dongle. > > Ken > ----- Original Message ----- > From: <jrm8005(a)gmail.com> > To: <kjones(a)ziplink.net>; <wlug(a)mail.wlug.org> > Cc: <kjones57(a)alum.mit.edu> > Sent: Thursday, August 20, 2009 1:43 PM > Subject: Re: [Wlug] Here I am begging again. > > >>> I have not been making the meetings. That does not mean my SUN ULTRA1 >>> running Aurora Linux can no longer create 'interesting' problems. This >>> time >>> the second SUN ULTRA running Gentoo is in cahoots. >>> >>> I have a new SAMSUNG SyncMaster flat screen monitor. I have attached >>> this >>> monitor via a Belkin SUN adapter to my ULTRA1's. It does not work!! The >>> monitor flashes a little square window saying something about "Not >>> optimum >>> mode". It feels that it has not been configured correctly. The buttons >>> on >>> the right of the monitor, which are there to set it up, also do not work >>> with the SUN's is attached. >>> >>> The monitor works fine with PC type machinery. The Belkin worked fine >>> with >>> a regular old tube monitor. (I have not dug out the old monitor to check >>> whether it still works. I suspect it does.) >>> >>> Anybody have any ideas? >> >> Did your monitor come with a manual? If so, you should be able to >> find the supported modes listed in a table. Check that your >> X/drivers/dongle/etc are using a mode in that table. >> >>> >>> Ken Jones >>> kjones(a)ziplink.net >>> >>> _______________________________________________ >>> Wlug mailing list >>> Wlug(a)mail.wlug.org >>> http://mail.wlug.org/mailman/listinfo/wlug >> >> >> >> >> >> -- >> Internal Virus Database is out-of-date. >> Checked by AVG Free Edition. >> Version: 7.5.516 / Virus Database: 269.19.7/1232 - Release Date: 1/18/2008 >> 7:32 PM >> >>

Aug. 20, 2009

Re: [Wlug] Book list with names.

by Randall Mason

I would like the hacking books. Randall Mason randall(a)mason.ch On Thu, Aug 20, 2009 at 1:41 PM, Sebastian Courtney < sebastian.courtney(a)gmail.com> wrote: > Unfortunately I must a tend a wake tonight so I will not make the meeting. > Feel free to disperse the books I wanted to others. > See you all at the next meeting, > Sebastian > > > On Sat, Aug 15, 2009 at 3:17 PM, Tim Keller <turbofx(a)gmail.com> wrote: > >> It's yours! >> >> >> >> On 8/15/09, Eric Martin <freak4uxxx(a)gmail.com> wrote: >> > I would like to claim "Web Hacking: Attacks and Defense" as it looks >> > like nobody else has yet. >> > >> > >> >> Hacking / Security Books: >> >> "Secrets of a super hacker" by The Knightmare. >> >> [S. Courtney] "Hackers Challenge: Test Your Incident Response Skills >> >> Using 20 Scenarios" (3rd Edition) >> >> [S. Courtney] "Hacking Exposed: Network Security Secrets & Solutions" >> > "Web Hacking: Attacks and Defense" >> >> >> >> Math Books: >> >> [Frank Moody] "Discrete Mathematics and Its Applications" by Kenneth H. >> >> Rosen >> >> [Frank Moody] "Languages and Machines" Thomas A Sudkamp >> >> [Alex Haley] "A Primer for Calculus" >> >> >> >> Misc: >> >> [Alex Haley] "Latex" Second edition >> >> [Frank Moody] "The Latex Companion" >> >> [Frank Moody] "Mips RISC Architecture" >> >> "Database Systems" >> >> "Creating Web Pages with HTML" (3rd edition) >> >> [Frank Moody] "Operating Systems: Design and Implementation": Tanenbaum >> >> (includes Minux 2.0 disk!!) >> >> [Frank Moody] "PCI System Architecture" (Third Edition) >> >> >> >> Programming Books: >> >> [Alex Haley] "The C Primer" Third edition (this book is a bit dog >> eared) >> >> [Alex Haley] "A First Book of Ansi C" (a bit dog eared but excellent) >> >> "Tricks of the Game Programming Gurus" >> >> "Practical Programming in Tcl and Tk" >> >> "Virtual Reality Playhouse" >> >> "Creating Turbo C++ Games" (The disk for this book is long lost) >> >> [Keith Wright] "Linux Kernel Programming" (Third Edition) >> >> "Using Java 1.1" (Third Edition) >> >> "Using JavaBeans" (CD Long gone) >> >> [S. Courtney] "Sams' Teach Yourself C++ in 21 Days" (Second Edition) >> >> "Beginning Fedora 2" (Yeah it's 8 versions behind, but as a beginners >> >> guide to red hat linux systems, it's great) >> >> "User Interfaces In C++ And Object-Oriented Programming" by Mark >> Goodwin >> >> "Gardens of Imagination: Programming 3d Maze Games in C/C++" (Disk long >> >> gone) >> >> "NetWarriors In C Programming 3d Multiplaery games" (CD Long gone) >> >> [Ryan Pugatch] "Programming perl" (O'Reilly) >> >> [Ryan Pugatch] "Learning Perl" (O'Reilly) >> >> [Ryan Pugatch] "Perl by Example" (Ellie Quigley) >> >> >> >> Thanks, >> >> Tim. >> > -- >> > Eric Martin >> > Key fingerprint = D1C4 086E DBB5 C18E 6FDA B215 6A25 7174 A941 3B9F >> > >> > >> >> -- >> Sent from Gmail for mobile | mobile.google.com >> >> I am leery of the allegiances of any politician who refers to their >> constituents as "consumers". >> _______________________________________________ >> Wlug mailing list >> Wlug(a)mail.wlug.org >> http://mail.wlug.org/mailman/listinfo/wlug >> > > > > -- > Sebastian Courtney > WPI 2012 > ECE+RBE > 617-894-2460 > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > >

Aug. 20, 2009