On Sat, 31 Jan 2015 12:21:07 -0500 Lamar Owen wrote:> I like the full-size DisplayPort connector the best of any video > connector I've dealt with,Thanks! I'm waiting to see if my current monitor actually dies. It's an Asus 1920x1200 monitor that I like rather a lot, but it occasionally acts a bit flaky when coming back out of sleep mode. (The screen fills with a white brick-like pattern, but when I turn the monitor off and back on again it works perfectly once again. It has gone weeks between episodes of this, and it's done it two or three times a day -- very inconsistent.) If this monitor actually does die, I'm thinking that I'll replace it with a 2560x1440 monitor, but the built-in Intel video controller on my motherboard apparently supports that resolution only on the Displayport connector; the DVI port maxes out at 1920x1200. I guess I can purchase the higher resolution monitor without fear if I need it, and I sincerely appreciate your recommendation for a video card too! -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com
On Sat, January 31, 2015 12:22 pm, Frank Cox wrote:> On Sat, 31 Jan 2015 12:21:07 -0500 > Lamar Owen wrote: > >> I like the full-size DisplayPort connector the best of any video >> connector I've dealt with, > > Thanks! > > I'm waiting to see if my current monitor actually dies. It's an Asus > 1920x1200 monitor that I like rather a lot, but it occasionally acts a bit > flaky when coming back out of sleep mode. (The screen fills with a white > brick-like pattern, but when I turn the monitor off and back on again it > works perfectly once again. It has gone weeks between episodes of this, > and it's done it two or three times a day -- very inconsistent.) > > If this monitor actually does die, I'm thinking that I'll replace it with > a 2560x1440 monitor, but the built-in Intel video controller on my > motherboard apparently supports that resolution only on the Displayport > connector; the DVI port maxes out at 1920x1200.There also exists "dual link" DVI port: DVI-D. Also: reading wikipedia page: https://en.wikipedia.org/wiki/Digital_Visual_Interface I see that single link DVI supports up to WQUXGA (3,840 ? 2,400) @ 17 Hz (164 MHz) whereas dual link DVI supports up to WQUXGA (3,840 ? 2,400) @ 33 Hz with GTF blanking (2 ? 159 MHz) Valeri> > I guess I can purchase the higher resolution monitor without fear if I > need it, and I sincerely appreciate your recommendation for a video card > too! > > -- > MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
On Sat, 31 Jan 2015 12:34:32 -0600 (CST) Valeri Galtsev wrote:> I see that single link DVI supports up to WQUXGA (3,840 ? 2,400) @ 17 Hz > (164 MHz) whereas dual link DVI supports up to WQUXGA (3,840 ? 2,400) @ 33 > Hz with GTF blanking (2 ? 159 MHz)The manual for my motherboard states: "The DVI-I port supports both digital and analog DVI displays. The maximum supported resolution is 1900 x 1200 (WUXGA). The DVI port is compliant with the DVI 1.0 specification. The DVI analog output can be converted to VGA using a DVI- VGA converter." and "DisplayPort?s maximum supported display resolution is 2560 x 1600 at a 60 Hz refresh rate with a 16:10 aspect ratio (WQXGA)." Therefor, it appears that if I want to drive a 2560x1440 (or 1600) monitor without having to purchase a separate video card I'll need to go through the Displayport. -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com
On 1/31/2015 10:34 AM, Valeri Galtsev wrote:> I see that single link DVI supports up to WQUXGA (3,840 ? 2,400) @ 17 Hz > (164 MHz) whereas dual link DVI supports up to WQUXGA (3,840 ? 2,400) @ 33 > Hz with GTF blanking (2 ? 159 MHz)those numbers seem wrong to me. nothing I've ever seen uses 17hz or 33hz refresh, its all pretty much 60Hz in LCD flat panel land. single link DVI goes up to 1920x1200 in practice, and dual link up to 2560x1600. so-called '4K', really 3840x2160, requires DisplayPort, or HDMI 2.0 (1.4 supports 4K at 30Hz only). there's actually something like 5 possible DVI combinations. DVI-D is digital only (no analog/VGA output). DVI-A is analog only (really just VGA with a different connector, I've never seen this in the real world). DVI-I is both analog and digital in parallel on the same connector. either of the digital formats can be single or dual link. DisplayPort really only exists because HDMI is license encumbered, and the PC people didn't want to have to pay those royalties. -- john r pierce 37N 122W somewhere on the middle of the left coast