Pavillion dv7 4177nr: VGA output problem and catalyst control start link

I don't know if the problems are related or if I made things worse.  It started with an error message on uo start saying that there is a problem with Catalyst Control fail to start.  He always allowed did not work me to function normally until, in front of an audience, the o/p to a projector VGA connection.  I had a spare cable who has not remedied the situation then my class sitting around the laptop.

Another symptom is that the HDMI output is not working.  I do not ko wif it's a separate issue.

With the notion that it was connected, I set attemping to remove and re-install the drivers AMD and blindly assumed that it was where I'd get the update of the Cat command.

I used the AMD compatibility checker and installed for the AMD M880G with ATI Mobility Radeon HD 4250 graphics card.  The driver version is 8.770.2.1000 dated dated 19/09/2010

I can't duplicate the display or projector only use but when I attach an external monitor laptop change resolution as to accommodate the additional display.

I only need to check the applicability of the changes that I made, or I need help to plan a way out of the mess I made.

Hello g_david,

Thanks for the quick response!

To eliminate the possibility of a software problem, I have recommended to perform a backup and restore of your operating system. This can be done by following this document on the backup of files (Windows 7), and more to perform a recovery of the system HP (Windows 7). This should return your system to the factory settings.

If the problem persists, please call our technical support at the 800-474-6836. If you do not live in the United States / Canada region, please click the link below to get help from your region number.

http://WWW8.HP.com/us/en/contact-HP/WW-phone-assist.html

I hope this helps!

Concerning

Tags: HP Desktops

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