I have no sound, speaker with x thru it says " No audio output device installed" However under drivers the drivers are listed. CD rom is also acting funny. Sometimes when I do boot the system the sound works but most of the time not. The whole Game, audio, etc is missing most of the time but will reappear at times and the sound will work. I have a dv6604nr

Have your installed the Audio Drivers? If not, install it first and check what happens.

Regards, Mrityunjay

Look at the driver properties. I suspect a generic Microsoft driver has been installed and that driver doesn't work correctly. (Right click on the audio device from Device Manager and select Properties. Then check the Drivers tab. Look for the line with Driver Provider.)

I can't find a MX6400 listed on Gateway's driver site, http://www.gateway.com/gw/en/US/content/drivers-downloads . There are the MX6410 and MX6420 listed. Both of these have a Conexant audio driver for XP and Vista. The Vista driver may work under Windows 7. (Make sure to correctly select the 32-bit or 64-bit depending on your OS version.) Download the driver and try to manually install it. If that doesn't work, try a Conexant audio driver from another laptop brand that is for the correct version of Windows 7. (Just Google Conexant audio driver Windows 7.)

I hope this helps. If you have a problem, please let me know what your Device manager claims the manufacturer is on the HD audio device and the driver manufacturer listed in the Properties. Also add a comment if you see any error messages when trying to install a new audio driver.

Cindy Wells

if you are having problems with your sound
if your computer came with a motherboard disc the sound drivers could be on it
click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers
click start control panel sounds and audio,volume,advanced,speakers make sure you have selected the
(((appropriate speakers))) also audio you will find 3 drop down lists make sure you have the correct settings there
also
click start control panel sounds and audio devices you can adjust the volume there also select speaker volume you can change your settings there you can also tick in the box place icon in taskbar
if his does not fix the problem

have you tried this control panel sounds and audio,volume,advanced,speakers select the appropriate speakers from the drop down list or navigate to the device manager scroll to system devices + to expand,system speaker right click properties then select use this device (enable) also you might check
the speakers plug/outlet is usually at the back of the computer you will have to open up the computer to check the lead attached to the rear of the input plug make sure the connection is good
try cleaning your computer of dust using a fine air blower from a compressor making VERY sure that there is no MOISTURE in the air line specifically around the sound card and the CPU central processing unit dust causes static to build up in a computer
hope this helps don

You don't need a driver for the speakers, but a driver for the sound card installed inside your computer. If the computer came with that sound card then you can find the proper driver from the manyfacturer website -> Support section.

Sound drivers need to be reinstalled sometimes after iTunes updates or video game installs.

Hello

1. Power on your computer. Ensure that there is a sound device installed on your computer. You can locate your sound device by right clicking on "My Computer." Click "Properties." Select "Device Manager." Click on "Sound." Your sound device should be listed. If there is no sound device listed, you will have to purchase and install a sound device before proceeding.

2. Insert the CD or floppy disk that contains the drivers for your sound device into your computer's CD-ROM or floppy disk drive. If you do not have the CD or floppy disk that contains the sound device drivers, there are websites such as Driver Guide and NoDevice that will allow you to download the drivers online for free.

3. Click on "Install Drivers." The sound device drivers will then be installed onto your computer. It may be necessary to restart your computer once the installation is complete.

4. Open your media player and play an audio file to ensure that your sound device drivers were installed successfully.

THANK YOU

Hello
Sounds like the drivers for your audio device are missing or corrupt.

Go to control panel/audio or sound devices and make sure your device is listed and checked to enable.

Next go to Hp compaq.com and find which sound device is in your pc.
Download and install drivers for sound.

Or if you have the cd or dvd that came with the pc the drivers should be on there.

if your computer came with a motherboard disk the sound drivers could be on it
control panel sounds and audio,volume,advanced,speakers select appropriate speakers or
audio you will find 3 drop down lists make the necessary adjustments there or
control panel,administrive tools,computer management,device manager,sound video and game controllers could be a yellow question mark? right click to re-install drivers

or

control panel,administrive tools,computer management,device manager scroll to cd/dvd rom drives right click properties then properties again then tick enable cd digital cd audio for this cd rom device or scroll to dvd regions select no 4 for australia

hope this helps

Control panel,administrive tools,computer management,device manager scroll to cd/dvd rom drives right click properties then properties again then tick enable cd digital cd audio for this cd rom device or scroll to dvd regions select no 4 for australia or
the drivers might have been corrupted by something or you might have got a virus run your antivrus program and test for a virus then
you might have to uninstall then reinstall either the sound drivers or the sound card make sure you have both of these devices baked up to a disc before uninstalling
a yellow? question mark means you need to install/update driver right click to install driver
as for the sound
control panel sounds and audio,volume you can adjust the volume or advanced,speakers select appropriate speakers or audio you will find 3 drop down lists make sure you have selected the right speakers or control panel,administrive tools,computer management,device manager scroll to sound,video and game cotrollers could be a yellow question mark? right click to re-install drivers
hope this helps

control panel sounds and audio,volume,advanced,speakers select appropriate speakers or audio you will find 3 drop down lists make the necessary adjustments there or control panel,administrive tools,computer management,device manager,sound,could be a yellow question mark? right click to re-install drivers if no work try administrive tools computer management device manager scroll to cd/dvd rom drives right click properties ,properties again enable digital audio for this device
hope this helps

Various conditions may cause this problem. To troubleshoot, check the following:Microsoft Volume Control or your mixer program mute options and volume sliders. 
Connect headphones to the stereo phone jack on your CD-ROM drive’s front panel; adjust the volume control settings on the drive. If there is sound from your headphones, check the CD audio cable connection from the CD-ROM drive to the audio card. 
Ensure the speakers are properly connected to the audio card’s output connector. 
Joystick port is not working 
To troubleshoot, check the following:
The audio card joystick port conflicts with another joystick port in the system. Disable the audio card joystick port, and use the system’s joystick port. 
The joystick drivers, MSJSTICK.DRV and VJOYD.VXD, may not be installed. Uninstall the joystick, then reinstall to load the drivers. The drivers should come with the driver CD or floppy diskette with your sound card.
Computer hangs or restarts during installation
A hardware conflict may cause the computer to hang or restart during the installation procedure. Check the following to resolve the conflict:
A hardware conflict with another device in your system. 
Previously installed sound card hardware or software needs to be removed. 
The audio card is not seated in the slot properly. 
PCI bus mastering devices may be interfering with the operation of the audio card. Temporarily remove non-essential PCI bus mastering devices.
Resolving hardware conflicts
Hardware conflicts occur when two or more devices contend for the same resources. Conflicts between your audio card and another device may occur regarding the I/O address, IRQ line, or DMA channel:
Right-click the My Computer icon on your desktop, and select Properties. The System Properties dialog appears. 
Click the Device Manager tab. In the Device Manager, a plus sign(+) represents an expandable list of items. A minus sign (-) represents an expanded list. A circled exclamation mark denotes a conflict. 
Double-click Sound, video, game controllers. A list of multimedia devices appears. 
Select your audio card. 
Choose the Propertis button. 
Click the Resources tab. 
Uncheck the Use automatic settings option. 
Change "Settings based on:" if alternate settings are available. 
Determine the conflict by reviewing the "Conflicting device list".
Select the conflicting item in the "Resource Settings" list. 
Click the Change Settings button. 
Use the mouse to select a new setting. 
Select OK to close each of the properties windows, and restart your computer.
Audio card is not automatically detected
To manually configure your audio card for Windows 95/98:
Click "Start" on the taskbar, and select Settings from the Start menu. 
Select Control Panel. The Control Panel group appears. 
Double-click the Add New Hardware icon. The Add New Hardware Wizard dialog appears. 
Select Next to continue. 
Choose Yes to have Windows search for new hardware, then select Next 
Select Next to continue. 
Select Finish, and follow the prompts to complete the new hardware installation.
CD does not automatically run when you insert it in the drive
To enable the "Audio insert notification" feature:
Right-click the My Computer icon on your desktop, and select Properties. The System Properties dialog appears. 
Click the Device Manager tab. A list of devices appears. 
Double-click CD-ROM, and select your CD-ROM drive. 
Choose the Properties button. The CD-ROM drive properties dialog appears. 
Choose the Settings tab. 
Click the "Auto insert notification" option to enable. 
Select OK until all Properties dialogs are closed, and restart Windows for the changes to take effect.
No sound is heard from speakers
Verify the following:
Check the Microsoft Volume Control or the Audio Mixer Program mute options and volume sliders. 
Ensure the speakers are properly connected to the audio card’s output connector. 
Check the volume control and power connection of the speakers, if they are amplified. (Refer to the speakers documentation for detailed information). 
Ensure a hardware conflict does not exist between your audio card and another device in your system. 
PCI bus mastering devices may be interfering with the operation of the audio card. Temporarily remove non-essential PCI bus mastering devices. If the device is a display card, upgrade the display card drivers, or set the card to the default Windows VGA mode.
If you are experiencing no sound only during audio CD playback, see "No sound is heard from audio (music) CDs" above.

Static sounds are heard in wave files
Check to see if the static sounds are heard in all wave files. If the difficulty occurs only with certain games, refer to the software manufacturer’s documentation. To troubleshoot static sounds heard in all wave files:
Try different resource settings for the audio card, or set the card to use low DMA. 
Move the audio card to another PCI slot. Feedback from the power supply or another device may be responsible.