Podcast #1197: Is GPMI the beginning of the end of HDMI?
Release Date: 04/18/2025
HDTV Rewind Episode #4: Tips for Buying Speakers and Wireless Surrounds
HDTV and Home Theater Podcast
On this week’s show we go back to the second week of May 2007 where we look give you some tips on buying speakers that still hold true today. We also look at wireless speakers and read a couple of emails from back then.
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Podcast #1200: The History of Color Television in the United States
HDTV and Home Theater Podcast
On this week’s show we take a look back at the transition from black and white to color and compare it to the transition to HDTV. We also read your emails and take a look at the week’s news. News: Other: The History of Color Television in the United States We received an email from a listener with a link to a YouTube video called . It's a long video but an extremely informative presentation that takes a fascinating and detailed look at early color TV programming. Watch it if you get a chance.You can skip through parts of it because it's four hours long. This week we thought...
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HDTV Rewind Episode #3: 10 Things About Sound and Costco
HDTV and Home Theater Podcast
On this week’s show we go back to May of 2007 where we look at an article titled: 10 things about sound but were afraid to ask as well as revisiting a trip to Costco. We also look at the news and email of the day.
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Podcast #1199: TV Renewal Scorecard
HDTV and Home Theater Podcast
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HDTV Rewind Episode #2: Dolby Surround and More HD-DVD Fun
HDTV and Home Theater Podcast
In this episode we read some emails concerning mp3 bit rates and more on HDDVD. We also explain Dolby Surround. We finish with a TV Show Theme trivia game.
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Podcast #1198: Are You Satisfied With Your Streaming Providers?
HDTV and Home Theater Podcast
On this week’s show we ask, how satisfied are you with your streaming service providers? We also read your emails and take a look at the week’s news. News: Other: State of Streaming: Satisfaction with streaming providers (The Streamable) How are Americans really feeling about their streaming services? Recently, we surveyed nearly 1,500 cord-cutters to get a clearer picture of how people are watching, what they’re paying, and which services they are most satisfied with. The results reveal shifting habits in a saturated streaming market and point to what matters most as we speed...
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HDTV Rewind April 22 2007 Episode #1
HDTV and Home Theater Podcast
I thought it would be fun to go back and listen to a few episodes from the "old" days. Thanks to Milton Scritsmier I now have access to our podcasts going back to 2007. Let me know if you would like me to continue
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Podcast #1197: Is GPMI the beginning of the end of HDMI?
HDTV and Home Theater Podcast
On this week’s show we look at a technology that could end HDMI. We also read your emails and take a look at the week’s news. News: Other: Is GPMI the beginning of the end of HDMI? Over 50 Chinese companies including Hisense and TCL have joined forces to back an HDMI alternative called GPMI (General Purpose Media Interface). This new wired communication standard is designed to integrate multiple functionalities into a single cable, aiming to rival HDMI, DisplayPort, and Thunderbolt. The following are some key features: High Bandwidth for Data Transmission - GPMI Type-B:...
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Podcast #1196: Will AI Drive Home Automation into the Next Decade?
HDTV and Home Theater Podcast
On this week’s show look at five trends that are shaping home theaters in 2025 and we look at what will drive home automation into the next decade. Pulse we read your emails and take a look at the week’s news. News: Other: Here are Five Trends Shaping Home Theater Experiences in 2025: 1. Immersive Audio Systems: Dolby Atmos and DTS:X continue to dominate, with more homes adopting multi-dimensional sound setups. Ceiling speakers and soundbars with upward-firing drivers are increasingly popular, creating a cinema-like audio bubble. 2. 8K Resolution Adoption: While 4K remains...
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Podcast #1195: Could Tiled TVs Become the Future for Very Large Format Displays?
HDTV and Home Theater Podcast
On this week’s show we discuss whether physical media is making a comeback and could a Bezel-less OLED be the future of large format TVs. We also read your emails and take a look at the week’s news. News: Other: Physical media is finally making a comeback, and here's the proof Despite a decline in overall physical media sales, which dipped below $1 billion in 2024, there are signs of resilience and growth in specific sectors. Major retailers like Best Buy and Target are phasing out physical media, but Sony's announcement of a new Blu-ray player, the UBP-X700/K, set for release in...
info_outlineOn this week’s show we look at a technology that could end HDMI. We also read your emails and take a look at the week’s news.
News:
- Sony steps away from 8K TVs – for now
- Survey: Share of Homes With TV Antennas Falls to 19%
- DIRECTV unites streaming options under one name and price structure
- Peacock highlights cool features for mobile users
Other:
Is GPMI the beginning of the end of HDMI?
Over 50 Chinese companies including Hisense and TCL have joined forces to back an HDMI alternative called GPMI (General Purpose Media Interface). This new wired communication standard is designed to integrate multiple functionalities into a single cable, aiming to rival HDMI, DisplayPort, and Thunderbolt. The following are some key features:
- High Bandwidth for Data Transmission - GPMI Type-B: Supports up to 192 Gbps bandwidth, significantly surpassing HDMI 2.1 (48 Gbps), HDMI 2.2 (96 Gbps), DisplayPort 2.1 (80 Gbps), and Thunderbolt 4 (40 Gbps). GPMI Type-C: Offers up to 96 Gbps, compatible with USB-C ports, doubling the 40 Gbps limit of USB4 with Extended Power Range (EPR) under USB PD 3.1.
- Enables ultra-high-definition video - including 8K at 120Hz or higher, suitable for next-generation displays, gaming, and professional applications.
- Power Delivery GPMI Type-B: Delivers up to 480W of power, far exceeding Thunderbolt 4 (100W) and USB4 (240W with EPR). GPMI Type-C: Provides up to 240W, matching USB4 EPR capabilities. This eliminates the need for separate power cables - simplifying setups for devices like TVs, monitors, and gaming laptops.
- All-in-One Cable Solution - Combines video, audio, data transfer, network connectivity, and power delivery into a single cable, reducing cable clutter.
- Supports bidirectional data transfer - allowing devices to send and receive data simultaneously.
- Compatibility and Connectivity - GPMI Type-C: Licensed by the USB Implementers Forum ensuring compatibility with existing USB-C ecosystems for smartphones, PCs, and TVs. GPMI Type-B: Uses a proprietary connector, which may face adoption challenges unless widely licensed.
- Backward-compatible with USB-C and DisplayPort standards - easing transitions without requiring immediate hardware replacements.
- Universal Control and Device Management - Supports a universal control standard similar to HDMI-CEC, allowing a single remote to control multiple GPMI-connected devices
- Security Features - Integrates the ADCP (Advanced Digital Content Protection) protocol for secure content transmission.
- Supports daisy-chaining - similar to DisplayPort, for connecting multiple devices in series.
Limitations and Notes
While GPMI supports 8K video, HDMI 2.1 and DisplayPort 2.1 can handle higher resolutions (10K and 16K, respectively), though without power delivery.
Adoption is currently limited to Chinese companies (e.g., Huawei, Hisense, TCL), and global traction depends on integration into mainstream devices and compatibility with non-Chinese brands like Sony, Intel, or NVIDIA.
The proprietary Type-B connector may face adoption hurdles compared to the USB-C-based Type-C variant.
Commercialization is planned for Q1 2025, with consumer products expected by early 2026.
GPMI's combination of high bandwidth, power delivery, and multifunctionality positions it as a potential game-changer, particularly for 8K content and simplified connectivity, though its success hinges on widespread adoption and global market acceptance.