CD, CD ROM won't play / DVD ok. Presario A940

[techee1]

HP Compaq Presario A940. AMD 64 bit dual processor. Windows Vista SP1. Someone else reinstalled operating system, but didn't upgrade any drivers, or microsoft updates. I performed all updates from Microsoft, and drivers listed from HP, including BIOS Flash. This solved numerous problems, including wireless access. Both sound and video are perfect on DVD. With CD, or CD ROM, you just hear the CD spin, quiver as if it's trying, but nothing is recognized. Device manager doesn't show any problems. Only DVD is listed. Rather than just remove and reinsert DVD / CD player into it's connector, I swapped it with a known good one, same model number; HP Super Multi DVD Rewriter; Model-GSA-T20N (S05D) Same problem persists. I didn't check device manager again yet to see if there are any changes. I'm almost certain this is a driver issue, but since I'm here on this forum, I'm open to any relevant suggestions. I usually try to find the simplest solution, which usually works.

 

[Lottiemansion]

Hi,

My first thought is as you state "Chipset" drivers.

Please look here for full set of original HP drivers for you PC: -

Software & Driver Downloads Compaq Presario A940CA Notebook PC - HP Customer Care (United States - English)

 

[techee1]

Thanks, that's where I'm thinking also. I did download all drivers from this exact site, and Device Manager says it's working correctly, no conflicts.
Resources shows an I/O range, but no Memory range, and no IRQ is listed?
This controls SATA and ATA devices, I believe?

 

[Lottiemansion]

Hi,

This the driver for both my Blueray & CD-DVD drives.

Please post a copy/ picture of you device manager- DVD/CD's

 

[techee1]

Can't post a pic now, the laptop is a friend's. I'm trying to help him with it. I may be able to tomorrow morning.
I do appreciate your help.