Re: TV-Out problem
From: Mark L. Ferguson (marfer_mvpREMOVE_at_hotmail.com)
Date: 11/11/04
- Next message: phreekachu: "RE: Can't delete a user account"
- Previous message: Dena: "Re: Need a definition"
- In reply to: Dan K: "Re: TV-Out problem"
- Messages sorted by: [ date ] [ thread ]
Date: Thu, 11 Nov 2004 06:20:32 -0600
'cross-talk' sounds like the culprit. I would shield all the wires. (create
a 'Faraday cage', wrap in alum. foil, and ground it)
-- Mark L. Ferguson (NOT an MS-MVP) marfers notes for windows xp http://www.geocities.com/marfer_mvp/chatNotes.htm . "Dan K" <joeblow65@mail.com> wrote in message news:166e7679.0411102144.5ecee75b@posting.google.com... > Quick update... > It appears the problem is caused by my Sound Blaster Audigy. It turns > out if I disable the digital audio output on the Audigy (which by the > way is connected to the same amplifier that receives the S-Video > input) the problem goes away. Of course now I don't have sound! > (Simply disconnecting the RCA cable accomplishes the same as turning > it off in the driver.) The reason it worked for a while was because I > just recently connected the digital audio output after re-installing > Windows. (It had been connected for over a year with my 9700 Pro and > worked fine.) Therefore it is my conclusion that there was a hardware > redesign between the ATI Radeon 9700 Pro and the Radeon 9800 Pro which > made the S-Video output more susceptable to interference. Now why the > Audigy card is causing this interference is another good question. I > doubt neither Creative Labs, nor ATI will take any responsibility for > this issue. > My next step will be to attempt to connect everything into the same > outlet (computer, monitor, amp, tv, etc.) to prevent any ground loop > possibilities and see what happens. > > Later, > Dan K. > > joeblow65@mail.com (Dan K) wrote in message > news:<166e7679.0411101009.2bc25e22@posting.google.com>... >> Thnaks for the response Mark, but that wouldn't be the problem. First >> of all the connection is an S-Video connection. Secondly, the problem >> is not intermittant. The problem is very predictable and >> instantaneous. Once the boot-up sequence get's to a certain point, >> the image gets snowy. This points to some kind of software >> (driver/OS) issue rather than a hardware problem. But just to be >> sure, I have checked the physical connections numerous times to ensure >> they are good. >> >> Just thought of something, it may still be a hardware problem. I >> assume the OS is loading some low level drivers at this point in time, >> including USB and mouse drivers. Perhaps once these interfaces are >> initialized, the electrical characteristics of these interfaces >> changes and is causing the interference. That still doesn't explain >> why it worked and now does not, unless I loaded USB drivers which were >> not there before. I will attempt to disable and disconnect all non >> essential hardware and their respective drivers and see if that helps. >> If it does, then there is probably a bad cap. somewhere in my system. >> >> Will keep everyone posted. >> >> Thanks, >> Dan K. >> >> >> "Mark L. Ferguson" <marfer_mvpREMOVE@hotmail.com> wrote in message >> news:<#ogVmEsxEHA.2036@TK2MSFTNGP12.phx.gbl>... >> > Your symptoms are consistent with the classic problem with co-axial >> > cable. >> > The center pin lacks a good physical contact with the plug. If you bend >> > the >> > pin slightly to ensure good physical contact, you will get rid of the >> > slow >> > fade in signal. >> > >> > -- >> > >> > Mark L. Ferguson (NOT an MS-MVP) >> > marfers notes for windows xp >> > http://www.geocities.com/marfer_mvp/chatNotes.htm >> > . >> > "Dan K" <joeblow65@mail.com> wrote in message >> > news:166e7679.0411080731.240b42f7@posting.google.com... >> > > Sorry for the multiple posts, but apparently when posting from the >> > > Microsoft Discussion forum, my message got posted even though I >> > > received an error indicating there was a failure posting the message >> > > and I should try again later. So I tried again later, 7 times in >> > > total, all "failed". So here's my 7 copies. Another quality >> > > Microsoft product :-) >> > > Let's try posting from Google this time and see how that works. >> > > Dan K >> > > >> > > "Dan K" <Dan K@discussions.microsoft.com> wrote in message >> > > news:<1B16DAB5-C13D-4A90-A479-24F5BEAFA581@microsoft.com>... >> > >> I have an ATI Radeon 9800 Pro which has been having problems with >> > >> the >> > >> TV-Out >> > >> capability. ATI has been less than helpful in trying to help me >> > >> resolve >> > >> them. The issue is the quality of the picture is very poor. Before >> > >> anyone >> > >> interjects and says TV-Out quality is normally poor, I am aware of >> > >> that, >> > >> but >> > >> it is even worse than it should be. Specifically what I am seeing >> > >> is as >> > >> follows: While the PC boots the TV-Out quality is as expected. I >> > >> can >> > >> clearly see my POST and early boot-up sequence. The Windows XP >> > >> splash >> > >> screen >> > >> looks perfect, than right when the scrolling progress indicator on >> > >> the >> > >> splash >> > >> screen pauses (mine always pauses for a split second after being up >> > >> for a >> > >> few >> > >> seconds.) the picture becomes very snowy. Shortly thereafter the >> > >> picture >> > >> goes away entirely. Now this happens whether I have any ATI >> > >> specific >> > >> driver >> > >> loaded or not. (That is to say, even with no ATI or Windows drivers >> > >> for >> > >> the >> > >> 9800 Pro loaded, I get TV-Out up to this point.) If I do have the >> > >> latest >> > >> 9800 Pro drivers loaded, I must enable TV-Out from the driver >> > >> control >> > >> panel, >> > >> however the quality is still very poor as mentioned above. I had a >> > >> 9700 >> > >> Pro >> > >> in the past which seemed to work fine (except it would overheat so >> > >> ATI >> > >> sent >> > >> me a new 9800 Pro replacement) >> > >> Additionally, after messing around with it for a while, I decided to >> > >> re-install Windows from scratch. Everything worked perfectly for a >> > >> few >> > >> weeks >> > >> (including TV- >> > >> Out) but then just today, the problem came back. There is nothing I >> > >> can >> > >> put >> > >> my finger on in terms of software I have installed, or driver >> > >> updates I >> > >> may >> > >> have gotten to cause the issue. I have obviously re-installed all >> > >> the >> > >> video >> > >> drivers to no avail. I have also un-installed anything I could >> > >> think of >> > >> since It last worked. No dice. Tried restoring to a restore point >> > >> where >> > >> I >> > >> know it worked, still no help. >> > >> If anyone knows of any issues, has seen this problem before, or has >> > >> any >> > >> info >> > >> on how I can proceed, I would appreciate it very much. I am a >> > >> software >> > >> engineer, so no need to dumb it down for me. >> > >> I am currently running SP2 with all the latest updates. However as >> > >> mentioned before, I have not updated Windows in the recent past so >> > >> it did >> > >> work with SP2 installed previously.
- Next message: phreekachu: "RE: Can't delete a user account"
- Previous message: Dena: "Re: Need a definition"
- In reply to: Dan K: "Re: TV-Out problem"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
|
