Stop display on laptop from going "crazy" when hooked up to HDMI.

Lonpuz

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Mar 21, 2014
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Laptop display becomes unwatchable when hooked up to HDMI. Display on Sharp Aquos tv is still perfectly fine, but randomly the display on the laptop will glitch. The only way I can currently correct it, is to unplug HDMI from laptop and then reconnect.
 
display output for Computing devices is on a specific range and settings (1024x768, 1440x900, etc.) but a TV display can have ANY size the TV maker set it for and 'drop' alot of other 'sizes'. So for exampl the Aquos may only display 1080p, but your computer (which you didn't even tell us your specs especially the video card) may be 'forcing' that setting out and may be overheating (randomly the display on the laptop will glitch) because it wasn't made to do that setting but on a lower setting the Aquos can't display.

Run SPECCY on the laptop to give us your specs, but you need to also check the manual on the Aquos and make sure it MATCHES what your laptop can 'output' (aka displays).
 
Thanks for the reply Tom. Here are the specs of the laptop as per SPECCY;
Operating System
Windows 7 Home Premium 64-bit SP1
CPU
Intel Core i5 2410M @ 2.30GHz 43 °C
Sandy Bridge 32nm Technology
RAM
8.00GB Dual-Channel DDR3 @ 665MHz (9-9-9-24)
Motherboard
Hewlett-Packard 1656 (CPU1) 46 °C
Graphics
Generic PnP Monitor (1366x768@60Hz)
Intel Mobile Intel HD Graphics (HP)
ATI Radeon HD 6490M (HP)
Storage
698GB Seagate ST9750420AS (SATA) 34 °C
Optical Drives
hp DVD-RAM UJ8B1
Audio
IDT High Definition Audio CODEC

The TV is a Sharp Aquos LC-60LE640U. I have checked the specs on the TV, and it should be able to display anything the laptop can put out through HDMI (1080P). As for the laptop, I have device drivers setup for auto-update. I did go to the Intel site this morning though to ensure I had the most up to date driver, which I do. Any additional suggestions or information is appreciated.
 
Okay a few things, one you have a ATI video card for when you do 'graphic' things, like look at a webpage, run a movie, play a game, etc. For typing 'letters' or such 2D stuff the Intel IGP will kick in to reduce the power consumption and heat created (laptop need to last longer then 30 min and not burn your legs).

I would remove the AMD drivers through Control Panel. Then download Driver Fusion (or the older Driver Sweeper) and really remove all the ATI components. Reboot, then download and reinstall the latest (I believe Beta) Catalyst (have to scroll down) from AMD.

Download and run Slim Drivers, install all the latest updates for all the other parts you may not realize need updating (it is surprising). but you don't need to reboot until you do the last update

Did you install all Windows Updates? Including options except BING? Check them and repeat till ALL are installed.

Remove whatever AV your using and go to www.filehippo.com and download AVAST! or AVG and do a full system scan - this repeatedly has resolved alot of people issue relying on MS Essentials.

Download Malwarebytes do a full system scan (AV doesn't pick up alot of malware) - this resolved almost ALL other similiar posts to date as most had Malware the AV didn't pick up.

Repeat the AV/Malware scans till the system comes up clean.

Finally a review here http://www.sharpusa.com/CustomerSupport/SharpCareCenter/DownloadFiles.aspx?modelnum=LC-60LE640U shows there is a Firmware update that needs to be applied. I would download to the firmware to a thumb drive then the manual as well to understand how to update the screen.

Fyi the screen is 120Hz, but the laptop over HDMI can only pump out 60Hz displays. If your using HDMI make sure your set to using 60Hz through the AMD Catalyst Panel (Right click desktop and there is the control panel option). If you wish to do 120Hz (like I do) you can NOT do that with AMD, AMD does not support it, only NVIDIA does, and that also requires using the DVI-D connector not HDMI.

Let me know how things turn out after doing all these steps.