Over-the-Air Digital TV with Linux
The Hauppauge WinTV-HVR-1800 is a PCI Express x1 tuner that also supports digital (ATSC), analog (NTSC) and unencrypted cable TV signals. This card has coaxial inputs for analog cable TV, digital ATSC/QAM TV and FM radio. It also has inputs for S-Video/composite and L/R stereo audio. An integrated hardware MPEG-2 encoder offloads the system processor when recording analog TV or cable channels. Accessories include a remote control, USB IR receiver and IR transmitter cable (to control a set-top unit).
Out of the box, this tuner is not supported by Linux. However, you can get the digital (ATSC) tuner to work reliably with Ubuntu 7.10 after you build its driver (see the Building a Device Driver for Hauppauge WinTV-HVR-1800 on Ubuntu 7.10 sidebar). The analog TV features for this tuner could not be evaluated under Linux, because the driver does not yet support the analog circuitry.
Building a Device Driver for Hauppauge WinTV-HVR-1800 on Ubuntu 7.10
First, enable universe and multiverse package repositories, by selecting System→Administration→Software Sources from the GNOME desktop menu. Click the tab labeled Ubuntu Software, and make sure the boxes are checked for Community-maintained Open Source software (universe) and Software restricted by copyright or legal issues (multiverse). Click Close.
Next, apply all latest updates from Ubuntu by selecting System→Administration→Update Manager from the GNOME desktop menu, and apply all system updates. Then, reboot the system.
Next, launch a terminal and do sudo su (to become the root user). Install the necessary packages to build the latest v4l-dvb drivers:
aptitude install mercurial build-essential linux-source
Grab the latest copy of V4L DVB source code from linuxtv.org:
cd /usr/local/src hg clone http://linuxtv.org/hg/v4l-dvb
Compile the V4L DVB drivers:
cd /usr/local/src/v4l-dvb make make install
And, reboot the system.
After setting up the tuner in MythTV, I was able to view both HD and SD programs. There was no noticeable difference in picture quality compared to the USB tuners. The remote control worked well and is fully supported by LIRC (Linux Infra-Red Control) using the Windows Media Centre Remotes (new version Philips, et al.) configuration settings in LIRC. If you're a couch potato, a working remote control in MythTV is absolutely essential.
You can experience a great HDTV show on your desktop with the right equipment and some tweaking. If you're looking to build a full-fledged media center based on Linux, MythTV does it all—from program listings, Picture-in-Picture, remote control support, Web administration with MythWeb, programmable recording, to watching your favorite shows. If you're a minimalist and don't want to dedicate an entire system, Me-TV looks promising.
It goes without saying that you should do your homework before buying components for your DTV Linux system. Visit popular on-line forums, such as the MythTV Wiki, LinuxTV Wiki, Ubuntu Forums and Ubuntu Wiki to tap into the wisdom of the crowd.
In summary, my recommendations for a great DTV experience include outdoor antenna, fast multicore processor, medium to high-end video card with at least 256MB video memory and a fast high-capacity hard drive. For your desktop, the pcHDTV HD-5500 works right out of the box. The Hauppauge WinTV-HVR-1800 is a close second. For your laptop, the Pinnacle PCTV HD Pro Stick and the Hauppauge WinTV-HVR-950 USB tuners work well.
Table 1. Tuners at a Glance
|Tuner||Overall Rating (5 stars are best)||Out-of-the-box Linux support||Price||Interface||Vendor Web Site (Linux helpfulness—5 stars is best)||Accessories|
|pcHDTV HD-5500||*****||Yes||$129||PCI||****||A/V adapter cable|
|Hauppauge WinTV-HVR-1800||****||No||$120||PCI Express x1||***||Remote control, USB IR receiver, A/V adapter cable|
|Pinnacle PCTV HD Pro Stick||***||No||$90||USB 2.0||*||Telescopic portable antenna, remote control, USB extender cable, A/V adapter cable|
|Hauppauge WinTV-HVR-950||**||No||$70||USB 2.0||***||Telescopic portable antenna (lower quality than the one provided by the Pinnacle Pro Stick), USB extender cable, A/V adapter cable|
Fast/Flexible Linux OS Recovery
On Demand Now
In this live one-hour webinar, learn how to enhance your existing backup strategies for complete disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible full-system recovery solution for UNIX and Linux systems.
Join Linux Journal's Shawn Powers and David Huffman, President/CEO, Storix, Inc.
Free to Linux Journal readers.Register Now!
- Server Hardening
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- The Humble Hacker?
- New Container Image Standard Promises More Portable Apps
- The Death of RoboVM
- The US Government and Open-Source Software
- EnterpriseDB's EDB Postgres Advanced Server and EDB Postgres Enterprise Manager
- Why Python?
- Open-Source Project Secretly Funded by CIA
- Varnish Software's Hitch
In modern computer systems, privacy and security are mandatory. However, connections from the outside over public networks automatically imply risks. One easily available solution to avoid eavesdroppers’ attempts is SSH. But, its wide adoption during the past 21 years has made it a target for attackers, so hardening your system properly is a must.
Additionally, in highly regulated markets, you must comply with specific operational requirements, proving that you conform to standards and even that you have included new mandatory authentication methods, such as two-factor authentication. In this ebook, I discuss SSH and how to configure and manage it to guarantee that your network is safe, your data is secure and that you comply with relevant regulations.Get the Guide