HTG Asks: Troubleshooting HDMI Audio, Android Keyboard Install, and URL Logging
Reader Tech Questions: This Week's Answers
We regularly address the technology-related inquiries submitted by our readership. This installment focuses on resolving a peculiar HDMI audio problem, guidance on installing the default Android keyboard, and methods for tracking website URLs accessed across your network.
HDMI Phantom Sound Troubleshooting
One reader reported experiencing intermittent, unexplained sounds emanating from an HDMI connection even when no audio source is actively playing. This phenomenon, often referred to as "phantom sound," can be quite disruptive.
Several factors can contribute to this issue. It's often linked to ground loop problems or interference within the HDMI cable itself. Testing with a different HDMI cable is a simple first step.
Additionally, ensure all connected devices – including your TV, receiver, and source device – are properly grounded. Power conditioners or ground loop isolators can sometimes resolve persistent issues.
Installing the Stock Android Keyboard
A user inquired about re-installing the standard Android keyboard on their device. Sometimes, third-party keyboards can cause conflicts or users may simply prefer the original.
The process varies slightly depending on your Android version and device manufacturer. Generally, you can navigate to Settings > System > Languages & input > On-screen keyboard.
From there, you should be able to manage your installed keyboards and enable the default Android keyboard. If it's not listed, you may need to download it from the Google Play Store, searching for "Gboard" which is now the standard Android keyboard.
Logging Visited URLs on Your Network
We received a question regarding the ability to monitor and log the URLs visited by devices connected to a network. This is often desired for parental control or network security purposes.
Achieving this requires a network-level solution, such as a router with built-in logging capabilities or dedicated network monitoring software. Many modern routers offer basic URL filtering and logging features.
Alternatively, software like Wireshark can capture network traffic, allowing you to analyze visited URLs. However, this requires technical expertise and careful consideration of privacy implications. Using a dedicated DNS filtering service is another option.
Important Note: Monitoring network traffic may be subject to legal restrictions and privacy regulations. Always ensure you comply with applicable laws and obtain necessary consent where required.
Resolving Mysterious HDMI Audio Issues
Dear How-To Geek,
I am writing to request assistance with a perplexing technical problem. It appears as though a malfunction is occurring within my media center setup.
My wife consistently experiences a lack of audio output when using the system.
A system reboot is always required before sound is restored – this happens every time she attempts to watch content.
Conversely, I never encounter this issue when operating the media center.
I have thoroughly examined all settings and updated the relevant drivers, but the problem persists.
The system is a custom-built PC utilizing a micro ATX motherboard with an integrated HDMI port.
It runs XBMC and is connected to an HDTV via an HDMI cable directly from the motherboard.
I have even replaced the HDMI cable, to no avail.
This situation is incredibly frustrating!
Sincerely,
HDMI Tripping in Houston
Understanding the Root Cause
Dear HDMI Tripping,
You may find the explanation for this issue surprisingly simple. We strongly suspect a specific sequence of operations is triggering the problem.
Our hypothesis is that your wife powers on the media center before activating the HDTV.
In contrast, you typically turn on the HDTV first, followed by the media center.
This behavior has been observed across numerous HDMI devices, particularly those utilizing motherboard HDMI ports.
We are confident that this is the source of the issue.
How the Issue Manifests
Certain combinations of devices and televisions exhibit a peculiar quirk related to HDMI signal initialization.
Specifically, audio output often fails to activate when the source device is powered on prior to the television.
Given that this problem primarily affects Home Theater PCs (HTPCs), it's possible the hardware defaults to alternative audio outputs when no initial sound signal is detected on the HDMI port.
Consider checking for a BIOS update for your HTPC, as this may resolve the issue.
The Solution
To eliminate these "haunting" audio problems, simply ensure the HDTV is powered on before the media center.
Following this sequence will likely restore consistent audio functionality.
This simple change should resolve the issue and provide a seamless media experience.
Switching from the HTC Keyboard to the Standard Android Keyboard
A reader recently inquired about a keyboard tip and its functionality on their Sprint HTC Evo. The tip, involving swiping up to expand the keyboard, didn't work as expected.
The issue stems from the fact that the HTC Evo utilizes the HTC custom keyboard, rather than the standard Android keyboard. This is why the previously shared trick wasn't functional.
Installing the Default Android Keyboard
To enable the swipe-up-to-extend feature, the default Android keyboard must be installed. This allows access to functionalities not present in the HTC keyboard.
A suitable version of the keyboard can be found and downloaded from the XDA Developers thread. Installation on your phone is then required.
Upon initial use, the system will prompt you to designate it as the default keyboard. Simply confirm this selection to activate it.
Reverting to the HTC Keyboard
Should you prefer to return to the HTC keyboard after trying the default version, this is easily accomplished.
Our guide detailing how to change the default application for various Android tasks provides instructions on re-enabling the HTC keyboard. This allows for a seamless switch back to your preferred input method.
By following these steps, users can experience the full range of Android keyboard features, including the convenient swipe-up gesture.
Network URL Visit Tracking: A Comprehensive Guide
A reader from Texas inquired about the feasibility of monitoring URLs accessed across a network utilizing a DD-WRT router with syslog enabled. They sought recommendations for suitable tools, particularly for a Windows environment, and prioritized simplicity.
Challenges in Router-Level URL Logging
Currently, no readily available plugin or code snippet exists for DD-WRT routers to directly log URLs. The primary obstacle lies in the processing required to translate IP addresses into corresponding URLs.
This process necessitates the router to inspect each IP request for HTTP headers and subsequently resolve the URL. While manageable for devices like web browsers, it presents a significant computational burden for the processors typically found in routers.
Alternative Approaches to URL Monitoring
Although direct router logging proves challenging, several alternatives offer viable solutions for network URL monitoring.
- WallWatcher: This Windows-based application facilitates the analysis of router logs, including IP-to-URL resolution. It allows for post-processing of log files on a computer.
- OpenDNS: OpenDNS provides integrated tools for tracking URLs visited by devices on your network.
Benefits of Utilizing OpenDNS
OpenDNS offers distinct advantages over router-level logging.
It eliminates the need for log file management on the router and avoids the complexities of transferring and resolving them. Furthermore, OpenDNS allows remote access to URL monitoring data via a web-based account.
This accessibility is particularly useful for monitoring network activity while traveling, such as overseeing children's online behavior during a business trip.
Instructions for configuring DD-WRT with OpenDNS can be found here.
Limitations of OpenDNS
A key limitation of OpenDNS is its inability to identify the specific device accessing each URL.
In situations where device-specific URL tracking is required, maintaining active syslog logging remains valuable. This allows for reverse lookup of URLs and examination of the syslog to pinpoint the originating device.
Alternatively, the collected logs can be imported into WallWatcher for detailed analysis.
Seeking Tech Support
If you have a challenging technical question, please submit it to tips@howtogeek.com. We will endeavor to provide a comprehensive solution.
Important Note: Understanding network traffic and implementing monitoring solutions requires careful consideration of privacy and legal regulations.