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Alienware m5750/5790 hd3650 dvi to hdmi problems

post #1 of 10
7/14/09 at 5:45pm
Thread Starter 
I purchased an ati mobility radeon hd3650 about four months ago and plugged it in my lappy to replace my then, and still, dying x1800. My computer boots up fine and everything is running smoothly.

My problem however is that my lappy has been connected to my 1080p hdtv which I use as a monitor (I use a wireless mouse and keyboard) using a dvi to hdmi cable. When the hd3650 is seated in place of the x1800, I can't get a picture up on the screen. I have tried to detect the display, I've made sure it's connected to the the right inputs and everything. I've tried downloading drivers and still nothing.

Could it possibly be a vbios setting?
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post #2 of 10
7/14/09 at 6:11pm
Has it worked at any point?
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post #3 of 10
7/14/09 at 6:16pm
Thread Starter 
Well, I actually got curious after my posted and I just got done swapping it out. Currently, I got an ati popup that said detected dvi to hdmi connected. In order for you to hear audio plug in a separate audio cable or something of that sort. When i try to click show desktop on external display only, my lappy screen goes dark but there is no signal sent to my tv.

To answer your question, when the x1800 is in my lappy, it works fine. When I switch it to the mobility hd3650, i get the above situation.

FYI, my tv is a sharp aquos.
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post #4 of 10
7/14/09 at 6:18pm
HD3650 - try the ATI Catalyst Control Center?

cheers ...
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post #5 of 10
7/14/09 at 6:40pm
Thread Starter 
Quote:
Originally Posted by qhn View Post
HD3650 - try the ATI Catalyst Control Center?

cheers ...
I've tried to set it up using both the basic and the advanced mode for ati CCC and it does detect my tv (it says its connected to a sharp HDMI). However, there is still no signal/picture showing up on my tv. I've tried using the fn function to see if that would elicit a response (flickering) from my tv and still nothing. Do you think it's not actually sending out a signal but only receiving one?
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post #6 of 10
7/14/09 at 6:52pm
What version of the catalyst are you using? Try updating it. I also read that on many HD3650 card for PCs, one does sometimes need an ATI DVI-HDMI adapter (even it is only for sound output) to make it work.

cheers ...
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post #7 of 10
7/14/09 at 7:45pm
Thread Starter 
Since my last post I have updated catalyst to the latest one via their website. (I had to use mobility modder to mod the driver files.) I have flashed the vbios so now the subvendor class under gpu-z says ati (I found on another site someone who had the same card and dumped the vbios.)

During all this, I read somewhere that if I leave my cable plugged in and reboot the computer, the boot screen should show up if all the settings on the card were correct (explains why I flashed the vbios) and neither of the two vbios showed any response from my tv.

edit: so after searching and searching, i found an ati dvi to hdmi adapter on ebay for about 7 bucks. However, i examined the pics closely and the adapter for the hd3k series is a dvi-d dual link to hdmi. qhn, i don't exactly understand why my current dvi-d single link to hdmi would not be enough (all i need is a max res of 1920x1080 anyway.) Would the adapter "trick" the port into thinking an hdmi cable were attached since it would be able to deliver audio?

If it's of any use, I looked up the spec sheet from ati and this is what it says:

Two independent display controllers
  • Drive two displays simultaneously with independent resolutions, refresh rates, color controls and video overlays for each display
  • Full 30-bit display processing
  • Programmable piecewise linear gamma correction, color correction, and color space conversion
  • Spatial/temporal dithering provides 30-bit color quality on 24-bit and 18-bit displays
  • High quality pre- and post-scaling engines, with underscan support for all display outputs
  • Content-adaptive de-flicker filtering for interlaced displays
  • Fast, glitch-free mode switching
  • Hardware cursor
  • Two integrated dual-link DVI display outputs
  • Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)1
  • Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content2
HDMI output support
  • Supports display resolutions up to 1920x10801
  • Integrated HD audio controller with up to 2 channel 48 kHz stereo or multi-channel (5.1) AC3 supporting Dolby Digital or DTS, enabling a plug-and-play cable-less audio solution
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post #8 of 10
7/15/09 at 7:15am
I was thinking the same thing as you mentioned - "tricking" the output port - when reading about this adapter for the PCs cards. Hope it works for you and let us know.

cheers ...
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post #9 of 10
7/16/09 at 1:20am
Thread Starter 
so while I'm (im)patiently waiting for my adapter to arrive... I have some questions regarding the graphics card...

1. in my seemingly endless search for info, someone correct me if there is evidence to disprove, I noticed that I have not seen a laptop that has/is on sale with a dvi port (all are hdmi and vga only) sporting said graphics card which leads me to wonder: are all the vbios for all of these cards set up to somehow only output as an hdmi signal?
2. If so, is there a means of editing the bios to change some settings (I've looked at RBE without flashing my vbios) so that there is a signal sent out of my graphics card?
3. DVI video signal is exactly the same as HDMI video signal right? (After reading up on it, I am pretty convinced that it is, someone please correct me if I'm wrong) and if this is the case...
4. Could there be some connections being directed to the wrong wires thereby not sending a signal to my tv?

Thanks in advance
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post #10 of 10
7/19/09 at 1:21am
Thread Starter 
so the ati dvi to hdmi adapter arrived today... and no luck , it's the exact same result... and i tried plugging in my dvi to hdmi into my adapter for a dvi to dvi on another tv, "so signal"... i'm out of ideas here... which leaves me to believe that its most probably a vbios setting that i need to access or its a bad card... anybody?
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