The nearest I could find to my issue here was http://en.community.dell.com/support-forums/laptop/f/3519/p/19466572/20184938.aspx#20184938 , and this required Dell to replace the motherboard & processor. I've a feeling this maybe has never worked and is possibly a known problem (motherboard, processor, combination?) though possibly under-reported- just so few folks bother with HDMI output to TV with this (Dell N5050) model so doesn't appear on the radar much. It may be the processor doesn't support HDMI output but the Dell N5050 system provides one that is therefore totally useless and superfluous, and if this is the case I could really use someone telling me this is the case.
Intel® HM67 Express Chipset Family
Intel® Processor Graphics 2000
My issue is- RGB to the TV works fine, HDMI doesn't to any TV, though the TV in question accepts HDMI from another laptop (IBM) in the household. It's not a critical issue, and when the other IBM laptop is around I can use it, but in the nature of laptops it's not always around. I've been to Dell, but changes in OS (I bought an XP machine with a W7 upgrade included), so when I called Dell about it they said since the machine wasn't the original spec it was out of warranty with changes and they couldn't help. My warranty is recently up, though this has been a problem since day 1, and increasingly so. I've periodically revisited this to look around to see if anyone has found a solution yet, and retracing my steps each time takes, well, time, so this is probably my last attempt since technology moves on.
To a Q posted elsewhere: http://www.fixya.com/support/t16629734-hdmi_output_not_working - relevant piece of suggested answer:
"->control panel and select "Appearance and Personalization." Click "Display Settings" followed by "Advanced Settings." Select the "Intel" tab and click the "Graphics Properties" button. Choose the "Intel Dual Display Clone" option and close the windows. What you see on your computer screen will also appear on the television. Right-click on the speaker icon in the bottom-left of the screen and select "Playback devices." Select HDMI in the list of devices and click "Set Default" in the bottom of the window.".
1) HDMI Connection made (HDMI #3 on TV and lit on TV end to indicate some cable/connection(?) noticed).
2) Win 7, so slightly different navigation to "Intel" tab via "Connect to an external display"->"Advanced Settings" and I click the "Graphics Properties" button.
Then I get 3 options (with a checkbox "Do not show this dialog again"):
- Basic Mode
- Advanced Mode
- Wizard Mode
3) Since Advanced 'Shows all the settings' I select this. I'd note- and this may be the trouble- that under the "Intel" tab there is only one option-"Built-In Display"- for the "Display" drop-down box. And everywhere I go within this "Intel" tab(s) there are only abilities to set parameters for the "Built-In Display". There's no "Intel Dual Display Clone" option anywhere to be seen.
The driver for the "Intel HD Graphics Card Family" device (HD Graphics card "working properly" ) is from Intel dated 25/03/2011 version 220.127.116.112, which is the latest I've been able to obtain and everything else on this Dell Inspiron N5050 is working fine and as up-to-date as I can make it (including Dell's support site).
Other items of note:
The speakers don't show an HDMI option under "Playback devices" from the Sound item- just 2 x "IDT High Definition Audio Codec" for "Speakers / Headphones" and "Communications Headphones", both correct.
I've searched everywhere for a solution- others with similar/the same(?) problems have got boards replaced by Dell under warranty (mine now is just off it, though this feature never worked from the first day I tried it). I've tried everything at this point from generic (watch this video, make sure the TV is on.. to update drivers etc...) to no avail.
Any help appreciated, particularly if someone can confirm what I suspect- that this Intel motherboard with on-board Graphics DOES NOT support HDMI. Then I can at least take this to Dell. If more information is needed, just let me know and I'll happily provide.