Solved HDMI vid signal only works in safe mode and not Windows 7

[Iomhar]

I recently purchased a Bush 42" HD ready LED FS TV with HDMI ports so I could connect my Medion laptop, with HDMI output, to watch HD movies etc and stream Net content to my TV. I set everything up in accordance with both manufacturers recommendations and using the correct HDMI cable. When powering up a signal is automatically detected and I see a display on both TV and laptop screen, but once Windows starts to load the TV screen says "no signal". I have tried all the options in Windows 7 screen resolution menu including projector selection modes but it just will not detect the FS TV screen. However if I go into safe mode the TV display works fine automatically, except of course its a lower resolution and I have no audio as its disabled for some reason in safe mode.

I have read various recommendations on other threads but nothing suited to my issue. It seems to me that basic drivers installed in safe mode do the job fine, but something is happening with Windows 7 when booting up in normal mode and I lose my HDMI output. Why will Windows 7 not detect my HDTV in normal mode?. I could stick with safe mode, except I then dont have the audio!...

TV works fine with all other port inputs like video, Scart, DVD, DTV, ATV. Laptop is only 3 months old, fully 7 updated and secure, no viruses etc. Running Intel Celeron 1.6Ghz, Dolby advanced audio, Intel graphics card, 2 GB RAM, 320 Gb HD. Kaspersky antivirus software.

Is this a software issue with Windows 7, background program conflict, or am I just unlucky to have 2 devices that are not hardware compatible with each other?.

 

[pbcopter]

It is most likely an issue with your graphics card driver. I would updated to the latest Intel driver

 

[Iomhar]

Thanks for that idea PBCopter. I have accessed the Intel website and am installing a graphics driver update as I write. Will lte you know if it works. Thanks again.

 

[Iomhar]

Hi again pbcopter. I installed the latest HD graphics driver as recommended by Intel after remotely interrogating my laptop and the install was successful but sadly I still have the same problem. I connect everything as required, power up my laptop and I see an output on my TV, but when windows 7 loads/opens the signal is lost. In screen resolution no second screen is detected, and even switching to a VGA output does not change anything, neither does selecting any of the projector options, or changing to the lowest resolution of 800*600.

Safe mode with networking works fine with the TV, but with audio function discontinued.

Any other ideas very welcome.

 

[Iomhar]

update - I did some checking on my video graphics card and it has 64 Mb dedicated memory, total 779 MB, enough to run the medica centre and HD stuff so no probz there. The picture quality in safe mode is fab, just a shame I cannot seem to get Windows 7 to detect the TV in normal mode. In safe mode the monitor set is the default monitor. I did try accessing the screen resolution in safe mode and was able to alter that, but still no detection of a second monitor etc. I suspect this is a bug in W7 which I have only come across by using the latest FST HD TV technology and laptop combination ( though not for 3D )

 

[Iomhar]

Update - I have been in contact with Medion and they are unable to help me. Their only suggestion was a driver update for the installed intel graphics card which I have already performed.

Are there any other Windows 7 Home Premium users having this problem?.

 

[Iomhar]

Update as of 10/12. I hooked up an LCD display to my VGA output and hey presto Windows 7 functions they way it is intended. The 2nd display was automatically detected and screen resolution adjusted to match its optimal configuration. All the W7 options were available to me including F8 toggle between screens, options to display one or two or both, and select as a projector screen.

Its now looking like I might have a hardware incompatibility between my Bush LED FSTV and the laptop, or maybe I just need to use a VGA connection instead, but then I need to sort out the audio too. Guess its back to my computer shop for bits, but I am still puzzled why the HDMI connection will only work in safe mode. Happy now that W7 is working ok ( as far as VGA is concerned) and the issue lies elswhere, but still open to ideas/suggestions as to what the solution is for the HDMI comms. I have emailed Medion tech help with the details and await their response.

 

[Iomhar]

Still stuck!. I saw some advice that within device manager I could change the default monitor driver to one of a number of choices available via microsoft in Windows 7. This I have tried for.....generic non pnp, generic pnp, digital FS over a range of resolutions, generic TV, but none work. At least the generic pnp works, if only in safe mode and at the lowest resolution of 800*600. Updating each of said devices did not make any difference.

I have now exhausted ideas and what I have read on other threads. The original probelm remains. I cannot view a vid signal via HDMI comms to my FSTV except in safe mode or when first powering up my laptop to when the Windows logo appears and then the signal is lost. W7 in normal mode will not detect the TV as a second monitor.

Now stumped!....

 

[gazz9496]

how long is the hdmi cable? hdmi can work at full res up to 5m but beyond that without a booster will lower the resolution.

have you tried a different hdmi cable? perhaps the one you have is what isn't supported by the laptop, bare in mind it has gone through several revisions up to 1.4a.

another question, the tv is set to digital input?

 

[Iomhar]

Hi gazz, the HDMI cable is 5m, and brand new. A signal is being displayed in safe mode ok, and in normal W7 mode up until the windows log in logo appears, then after than I only see " no signal" displayed on the TV screen. The cable is certified 1080p compatible and HDMI 1.3c standard. ( its by alphason) It was sold to me on recommendation by my local TV supplier. I understand the safe mode is a lower resolution, but even in normal mode at the lowest resolution setting there is still no signal or display being detected by W7.

I popped back to the TV store this afternoon and they were just as stumped as I am. I suppose I could take my laptop plus cable to them and see if they can get a display on a test TV set in the store, at least then we can rule out cable problems. Actually that sounds like a good idea as I can also see if it is a hardware issue relating to either the laptop or my choice of FSTV. Thanks for the feedback, these forums are such a good idea for brainstorming and I have already learned so much about how my laptop works!....Cheers....

 

[Iomhar]

Gazz sorry yes I missed about the TV setting. On the remote is a button marked input from which there is an on screen menu selection of inputs to select/highlight. These are ATV (analogue TV) DTV (Digital TV - Freeview) AV ( audio visual ) HDMI 1, HDMI 2, HDMI 3, PC ( USB 2.0), Scart, Multimedia ( eg camera, phone etc). Ony one input can be selected and displayed at a time. TV screen resolution/refresh is fixed 1080/ 60Hz. There is no VGA input port, I guess the manufacturer thought 3 HDMI was enough!.

It is so perplexing, I want to understand the nature of the problem aswell as get a fix. I will see how I get on with my TV store tomorrow.

 

[gazz9496]

honestly i'm not sure about how the revisions work exactly but a 1.4 hdmi port will need a 1.4 cable, earlier revision versions may work but they may not as well.

if it is a 1.3 cable i'd start by getting that changed to a 1.4 revision, or at least get a hold of one to test.

 

[Iomhar]

Ok guys just back from TV store where they hooked up my laptop to another FSTV and hey presto everything worked as it should using the HDMI. Straight home and repeated the procedure and I have the same fault. I connect everything, on start up initial video appears with recovery window, then windows starting logo, then.....screen blanks with no signal message.

So now it looks like I have a hardware compatibility issue with my TV. Will speak to the BUsh techie people again now I know cable and W7 installation is OK. Still would like to know what the actual issue is here, so any TV experts out there?. Its a 42" Bush LED backlit display FS HDTV model BLED42FHDAE, purchased in August The laptop is a Medion E series running Windows 7 home premium, Intel HD graphics card, HDMI output also purchased in August. I read somewhere about EDID issues with certain TV sets and Windows op systems, any other ideas?. SOmething happens when Windows completes loading that stops the vid signal with this combo, what is it?....

 

[Iomhar]

Update 12/12.

Still no progress even after long discussion with TV tech support. A nieghbour tried his laptop to my TV with HDMI running W7 Pro and could not get a vid signal at all, even in safe mode. We also then hooked up my laptop to his oldish Goodmans FSTV screen via HDMI and it connected perfectly. W7 automatically adjusted screen resolution and refresh rate.

The Bush tech support tell me this is the first instance of this kind of problem they have on record, but I am not convinced. If I do need a specific driver its not one that is in W7 or suited to the Intel Graphics, which would be quite bizarre!.

The issue has been referred now to a higher level with the TV manufacturer to see if they can recommend the most suitable driver combinations. Am I the only person in the world using W7 home premium on a laptop attached to a Bush 42" BLED FSTV via HDMI ?!!....

 

[neo101]

Go here >
AVForums.com : Free Home Electronics News, Reviews and Forums

I always use this site when I want to crack my European DVD players to "region free" with special handset keypress (no you can't in North America - so forget it!)

Some geek will be able to help you or point you in right direction in TV section

 

[Iomhar]

Thanks Neo will give it a try. though I have been on several other similar forums already with this query.

What seems to be the problem relates to the driver selected by W7 in detecting my TV as a monitor. In safemode vgasave is the default driver, which on minimum resolution provides a suitable signal for the TV to process and display. On power up in normal mode the TV is initially detected, but once the default graphics and monitor drivers are loaded thats when I lose the vid signal. All windows and Intel HD graphics drivers are up to date and manually selecting alternatives makes no difference. It seems my TV requires a driver that has not yet been developed and must have HTCP compatibility. I note my TV is not listed in the compatibility listing of FSTV for W7 by Microsoft.

I plan to set up an analogue VGA and audio link via the TV PC input and hope the resolution is ok, though naturally will be disappointed not to be able to enjoy HD digital or 3D TV.

Cheers.....

 

[neo101]

Only other thing I can think of is

- in most Graphic driver sub-menus you can "force" Graphic resolutions in case your telly doesn't 'talk' to your laptop or discover the needed resolution.

No idea if your driver section has this facility

Good luck

You need a 1.3C or 1.4 certified lead for HDMI

 

[Iomhar]

The HDMI cable is certified and has been tested on other machines. I will see if the Intel HD graphics submenus allow me to force the communications protocol. What I have noticed in safe mode ( ie vgasave) is a much wider range of screen resolutions available to me, including those of the tv ( 1920 * 1080 ) but even though I try to change these in safe mode to that resolution and click on apply it just returns to the default 800*600. I will see if I can speak with Intel direct. Thanks again...

 

[Iomhar]

Neo - I found the Intel graphics media control panel and went into the advanced options and clicked on monitor/TV and hey presto it said these settings were "not supported". I am not sure exactly what this means but the only info the panel would give me related to my laptop display. There was an option to create a customised managment of the driver but still nothing for a remote connected monitor. The plot just thickens!.

I signed up to the link forum you gave me and started a thread with all my up to date info. I cannot find any way to "force" my graphics card to link to my TV.

 

[Iomhar]

Neo et al. I have dug deeper into my Intel HD graphics card control panel and it is now clear to me that even with the latest driver installed my "TV/monitor is not supported". I have followed Intel's on-line instructions how to make the TV my primary monitor etc etc but I still get the "not supported" info. This explains everything to me now, that basically there is no driver available to make this card able to communicate with my Bush BLED TV over HDMI. I will take this up with Intel direct. VGAsave works in safe mode as the default basic video driver at low resolution and without audio and as an analogue signal.

I got there in the end, though naturally I am disappointed at least I know the crux of the problem.