{ "numMessagesInTopic": 5, "nextInTime": 1500, "senderId": "hY2k4RPMLlNvJ59xx2qzxTNJ1mFBx-6EEKNuQNP9WbRs1YKlr0U2A5dhIqdgRXQ0pFNihi9WGXpBIHgnnvCiF12wb3JPEUqsPD6A", "systemMessage": false, "subject": "Re: Problems with converter boxes", "from": ""yeangchng" <yeang_chng@...>", "authorName": "yeangchng", "msgSnippet": "Thanks for the suggestion. I ll give it a try on my 32-bit XP system. Problem is, however, that 99% of my work (Photoshop and Matlab) is done in XP x64 for", "msgId": 1499, "profile": "yeangchng", "topicId": 1496, "spamInfo": { "reason": "12", "isSpam": false }, "replyTo": "LIST", "userId": 39184597, "messageBody": "
>stripe
\n> Why do you try not the 61.76 drivers,they are also special for the
\n> T221,i work on a FX4000 with no other.
\n>
\n> http://www-3.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-
\n> 43943
\n>
\n>
\n>
\n>
\n> --- In IBM_T2X_LCD@yahoogroups.com, "yeangchng" <yeang_chng@>
\n> wrote:
\n> >
\n> > Hi all,
\n> >
\n> > I spent a very frustrating evening yesterday trying to get 3-
\n
> > 48Hz to work, and with a genuine IBM converter box to boot!Things
\n
> > that I found, in no particular order:IBM
\n> >
\n> > 1) My homemade converter box was almost as good as the genuine
\n
> > converter box in terms of the highest stable pixel clockreached.
\n
> > Homemade = 300 Mhz, IBM = 305 - 315Mhz.328Mhz
\n> >
\n> > 2) The genuine IBM box, with the original IBM converter box (LFH-
\n> 60)
\n> > to monitor (LFH-60) cable, still could not reach the magic
\n
> > pixel clock rate needed for 48Hz 3-stripe mode. This is ratherit
\n> > disturbing. I am suspecting a) the dual-link cable I am using --
\n
> > is a expensive one from Gefen, 1-foot long to minimize length,but
\n
> > has no ferrite inductor blocks on it, or b) the 6800GTo carditself
\n
> > may not be able to do much over 300Mhz pixel clock in dual linkusing
\n> mode
\n> > even though 180-190Mhz in single link is routinely achieved.
\n> >
\n> > 3) The Nvidia driver has a whole bunch of issues. I am still
\n
> amade
\n> > 77.xx or so, definintely not 80.xx Detonator driver b/c I found
\n> that
\n> > the 80.xx drivers did not let me span a DG3 in 2-head mode.
\n> >
\n> > As I mentioned before, I got 3-stripe mode working (sort of), at
\n> > 42Hz, but only in DualView mode (ie. 2 separate monitors in
\n> windows,
\n> > 1 at 2624x2400 and 1 at 1216x2400). When I replaced the home-
\n
> > converter box with the genuine one I got off eBay, and bootedinto
\n
> > Windows, the 42Hz 3-stripe Dualview mode was still ok, asexpected.
\n
> >attempt
\n> > However after messing around with the driver settings in an
\n
> > to get 48Hz 3-stripe to work, I could not get back to the stable3-
\n
> > stripe 42Hz mode!up
\n> >
\n> > 4) I tried to get dual-dual link to work after I gave up on 3-
\n> stripe
\n> > 48Hz at least for the evening. Setting the EDID to 5, I hooked
\n
> > each converter box to a different 6800GTo card (I have 2 in myused
\n> > machine). This is obviously different from Wilson who I think
\n
> aof
\n> > Quadro with 2 dual-links on one card.
\n> > This did not work well at all -- I got 1 half of the monitor
\n> > displaying the expected 1920 x 2400 @ 48Hz, but the right half
\n
> > the monitor was blank/black. Occasionally there would be a flashof
\n
> > something, but I can't be sure. This is disappointing becausethe
\n
> > pixel clock needed for 1920x2400 @ 48Hz is easily achievable bynew
\n> both
\n> > converter boxes, it may again be a driver issue.
\n> >
\n> > I am sort of at a loss now, and was debating getting one of the
\n
> > 7900GT gaming cards which have dual-dual link. But from therecent
\n
> > discussion stating that new Nvidia cards have problems with thecard
\n> T221
\n> > (probably from the drivers) I'm wary of even that!
\n> >
\n> > Again -- if there is anyone here who has gotten 3-stripe mode to
\n> > work with a non-Quadro dual-link card please let me know.
\n> >
\n> > Also another question for Wilson and Flup: When you did get 48Hz
\n> > working, what kind of dual-link cable were you using from the
\n
> > to the converter box? This may be the weak link in my system.Does
\n
> > IBM usually include a dual-link cable for that portion?
\n> >
\n> > Yeang
\n> >
\n>