Slashdot: DisplayPort 2.0 Labels Specify Bandwidth To Avoid HDMI 2.1-Like Confusion

DisplayPort 2.0 Labels Specify Bandwidth To Avoid HDMI 2.1-Like Confusion
Published on March 01, 2022 at 03:32AM
An anonymous reader quotes a report from Ars Technica: VESA, which makes the DisplayPort spec, today announced a certification program aimed at helping consumers understand if a DisplayPort 2.0 cable, monitor, or video source can support the max refresh rates and resolutions the spec claims. VESA's latest certification is around DisplayPort 2.0. The spec can support a max throughput of 80Gbps compared to DisplayPort 1.4's 32.4Gbps. This enables extreme uses, like 16K resolution with display stream compression (DSC), 10K without compression, or two 8K HDR screens at 120 Hz. But just because a monitor or cable, for example, is DisplayPort 2.0-certified doesn't mean that's the performance you'll get. The Ultra-high Bit Rate (UHBR) Certification is what you'll have to check for if you want to be certain about these figures. VESA's new "DP80 UHBR" certification means the display, cable, or video source supports up to a 20Gbps link rate (what VESA calls UHBR20) and a throughput of up to 80Gbps via four lanes. Meanwhile, "DP40 UHBR" certification calls for support for a 10Gbps link rate (UHBR10) and a maximum throughput of 40Gbps via four-lane operation. Of course, it's possible that some products will still claim such performance without going through VESA's certification process, but UHBR certifications seem to be the only way to know for sure if the DisplayPort 2.0 product will give you that impressive bandwidth. There should eventually be UHBR-certified monitors and video sources, but today's announcement is only accompanied by UHBR-certified cables. According to VESA, there are now DisplayPort and Mini DisplayPort DP40 and DP80 cables from companies including Accell, Bizlink, and WIZEN. The cables are also backward-compatible with other DisplayPort link rates, such as HBR 3 and 2. [...] In terms of DisplayPort over Alt Mode, VESA noted that "full-feature passive USB-C cables already support UHBR bit rate speeds." It added that UHBR-certified USB Type-C-to-DisplayPort converter cables will be available "soon." VESA also said that "multiple video source and display products" it's currently testing should be DisplayPort UHBR-certified "soon."

Comments

Slashdot: AT&T Says Leaked Data of 70 Million People Is Not From Its Systems

AT&T Says Leaked Data of 70 Million People Is Not From Its Systems Published on March 20, 2024 at 02:15AM An anonymous reader quotes a report from BleepingComputer: AT&T says a massive trove of data impacting 71 million people did not originate from its systems after a hacker leaked it on a cybercrime forum and claimed it was stolen in a 2021 breach of the company. While BleepingComputer has not been able to confirm the legitimacy of all the data in the database, we have confirmed some of the entries are accurate, including those whose data is not publicly accessible for scraping. The data is from an alleged 2021 AT&T data breach that a threat actor known as ShinyHunters attempted to sell on the RaidForums data theft forum for a starting price of $200,000 and incremental offers of $30,000. The hacker stated they would sell it immediately for $1 million. AT&T told BleepingComputer then that the data did not originate from them and that its systems were not breached. &q

Slashdot: AT&T, T-Mobile Prep First RedCap 5G IoT Devices

AT&T, T-Mobile Prep First RedCap 5G IoT Devices Published on October 15, 2024 at 03:20AM The first 5G Internet of Things (IoT) devices are launching soon. According to Fierce Wireless, T-Mobile plans to launch its first RedCap devices by the end of the year, while AT&T's devices are expected sometime in 2025. From the report: All of this should pave the way for higher performance 5G gadgets to make an impact in the world of IoT. RedCap, which stands for reduced capabilities, was introduced as part of the 3GPP's Release 17 5G standard, which was completed -- or frozen in 3GPP terms -- in mid-2022. The specification, which is also called NR-Light, is the first 5G-specific spec for IoT. RedCap promises to offer data transfer speeds of between 30 Mbps to 80 Mbps. The RedCap spec greatly reduces the bandwidth needed for 5G, allowing the signal to run in a 20 MHz channel rather than the 100 MHz channel required for full scale 5G communications. Read more of this story at

Slashdot: AT&T Can't Hang Up On Landline Phone Customers, California Agency Rules

AT&T Can't Hang Up On Landline Phone Customers, California Agency Rules Published on June 22, 2024 at 01:50AM An anonymous reader quotes a report from Ars Technica: The California Public Utilities Commission (CPUC) yesterday rejected AT&T's request to end its landline phone obligations. The state agency also urged AT&T to upgrade copper facilities to fiber instead of trying to shut down the outdated portions of its network. AT&T asked the state to eliminate its Carrier of Last Resort (COLR) obligation, which requires it to provide landline telephone service to any potential customer in its service territory. A CPUC administrative law judge recommended rejection of the application last month, and the commission voted to dismiss AT&T's application with prejudice on Thursday. "Our vote to dismiss AT&T's application made clear that we will protect customer access to basic telephone service... Our rules were designed to provide that assurance,

Shameless Plug

Search This Blog