In patch series notes for an amdgpu driver update posted on Friday (and noticed by Phoronix), AMD's Harry Wentland says that the company is finally adding HDMI FRL (Fixed Rate Link) support to the popular Linux display driver. That's the feature that allows for higher bandwidth on compatible HDMI cables compared to the TMDS standard found on HDMI 2.0 and earlier. That in turn enables direct support for higher resolutions, dynamic HDR, and features like Variable Refresh Rate that aren't supported in HDMI 2.0.

Wentland notes that this update still just represents "a representative subset of HDMI compliance," in part because it is missing the code to support the Display Stream Compression (DSC) that allows for even higher resolutions and frame rates up to 10K at 100 Hz. But Wentland adds that DSC support "is still being tested and will be sent out later," and that "a full
compliance run" for HDMI 2.1 is "in the works." An AMD driver developer with the handle agd5f also commented on Phoronix, noting that "a full implementation [of HDMI 2.1] will ultimately be available once the patches are ready and have completed compliance testing."

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According to a Sunday court filing from OpenAI, Musk messaged OpenAI President Greg Brockman two days ahead of the trial to "gauge interest" in a possible settlement. Brockman promptly responded, suggesting that "both sides" drop their claims. But Musk refused, then appeared to grow threatening enough that the court may allow Brockman to testify on the message as evidence supposedly revealing Musk's true motives for pursuing the litigation.

"By the end of this week, you and Sam will be the most hated men in America," Musk responded to Brockman's suggestion that all claims be dropped. "If you insist, so it will be."

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Now, the $599 entry-level Mac mini has also been removed from Apple's store. The cheapest Mac mini you can currently order from Apple costs $799, which gets you an M4 chip, 16GB of RAM, and 512GB of storage.

This isn’t technically a price hike; Apple has charged the same amount for these specs since launching the M4 Mac mini in late 2024. But now that the basic model with 256GB of storage has apparently been discontinued, it’s no longer possible to buy a Mac mini for its original $599 starting price unless you can find stock left over at some third-party retailer somewhere.

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Approvals for about 165 onshore wind projects on private lands are being stalled by the Department of Defense, including wind farms that were awaiting final sign-off, others in the middle of negotiations, and some that typically would not require oversight by the department, according to the American Clean Power Association (ACP) and people close to the matter.

Wind farms require routine approval from the Defense Department to ensure they do not interfere with radar systems. This typically involves the level of risk being assessed and the developer paying an agreed sum for the army to update its radar filter system so it can locate the windmill. Some projects can be deemed not to pose a risk due to their distance from army facilities and flight paths. Normally these assessments can take as little as a few days to complete.

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Unlike the more common software programs and plugins that simulate violin sounds via sampling, averaging the final sound based on thousands of notes, the MIT model is based on the fundamental physics of the instrument. “We’re not saying that we can reproduce the artisan’s magic,” said co-author Nicholas Makris. “We’re just trying to understand the physics of violin sound, and perhaps help luthiers in the design process.”

Violin acoustics has long been a hot topic of research among acousticians, particularly when it comes to unlocking the secret to the superior sounds of violins crafted during the so-called "Golden Age"—notably the instruments of famed Cremona luthier Antonio Stradivari, as well as those of the Amati family and Giuseppe Guarneri. There are plenty of variables to consider, given a violin's acoustic complexity.

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At the Consumer Electronics Show in 2020, Toyota CEO Akio Toyoda pledged to build a city of the future, a place where researchers, engineers, and scientists could live and work together. It was framed as the start of a transformation for the world's largest car company, moving it toward becoming a fully fledged mobility company.

Six months ago, after Toyota spent an estimated $10 billion to build an urban paradise atop a disused factory, the first residents moved in. One-hundred handpicked "Weavers," residents chosen to boost the tech cred of the sensor-laden mini-metropolis, began settling in.

Last week, I got a chance to check it out. Here's what I learned while wandering the streets of Toyota's vision of the future.

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Physics of why dolphins swim so fast

Dolphins are very good swimmers, but the exact mechanisms by which they achieve their impressive speed and agility in water have remained murky. Japanese scientists from the University of Osaka ran multiple supercomputer simulations to learn more about how dolphins optimize their propulsion and found it has to do with the vortices, or eddies, produced by dolphin kicks, according to a paper published in the journal Physical Review Fluids.

Per the authors, when dolphins flap their tails up and down, the kicking motion pushes water backward and produces swirling currents of varying sizes. The computer simulations enabled the team to break down those different sizes, revealing that the initial tail oscillations produce large vortex rings that generate thrust, and those larger ones then produce many more smaller vortices. However, the smaller ones don't contribute to the forward motion.

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The science of acoustic fire suppression, which has long been known and documented in scientific literature and the press, works by vibrating oxygen molecules away from a fuel source, depriving the fire of a critical component needed for combustion.

Indeed, after just a few seconds of infrasound, the tiny kitchen blaze goes out.

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In a new paper published this week in Nature, researchers from Oxford University’s Internet Institute found that specially tuned AI models tend to mimic the human tendency to occasionally “soften difficult truths” when necessary “to preserve bonds and avoid conflict.” These warmer models are also more likely to validate a user's expressed incorrect beliefs, the researchers found, especially when the user shares that they're feeling sad.

How do you make an AI seem “warm”?

In the study, the researchers defined the "warmness" of a language model based on "the degree to which its outputs lead users to infer positive intent, signaling trustworthiness, friendliness, and sociability." To measure the effect of those kinds of language patterns, the researchers used supervised fine-tuning techniques to modify four open-weights models (Llama-3.1-8B-Instruct, Mistral-Small-Instruct-2409, Qwen-2.5-32B-Instruct, Llama-3.1-70B-Instruct), and one proprietary model (GPT-4o).

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I mean, sure, according to Valve’s own statistics, Microsoft remains dominant. Over 92 percent of PCs in the Steam Hardware Survey run some version of Windows. But five years ago, this number was just over 96 percent. Ten years ago, it was just under 96 percent. Fifteen years ago? It was 96 percent. Go back any further than that and Steam only runs on Windows in the first place, itself a testament to Microsoft's ubiquity.

Between April 2021 and now, Linux’s share has climbed from under 1 percent to over 5 percent. This is a small number, and it's not all SteamOS (Valve's OS isn't broken out, but Arch, the base distribution for SteamOS, accounts for about 0.33 of that just-over-5-percent). But it’s also more than these numbers have ever moved. By making Windows games run on Linux, rather than trying to push game developers to make Linux-native ports, Valve has done via organic word-of-mouth success what the company utterly failed to do in the early 2010s when it tried to take on Windows directly.

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It wasn't until he was transferred to a Yale School of Medicine hospital for higher-level care that doctors finally identified the cause of his ghastly affliction: a common free-living amoeba that can be found almost anywhere, including tap water. But by then, it was too late. The man's case is reported in the journal Emerging Infectious Diseases. (A graphic image of his case is here, but be warned.)

Unicellular terror

The amoeba the doctors found was Acanthamoeba, which is known to cause such horrifying infections. But it's rare, and when it explodes into a full-body, often deadly malady, it tends to be in patients who have compromised immune systems or are otherwise debilitated. As such, the opportunistic pathogen is most often found in people with HIV/AIDS, cancers, and diabetes, as well as those on powerful immunosuppressive drugs, like transplant patients. The man didn't fit into any of these categories.

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Attempts to connect to most Ubuntu and Canonical webpages and download OS updates from Ubuntu servers have consistently failed over the past 24 hours. Updates from mirror sites, however, have continued to work normally. A Canonical status page said: “Canonical’s web infrastructure is under a sustained, cross-border attack and we are working to address it.” Other than that, Ubuntu and Canonical officials have maintained radio silence since the outage began.

A decades-long scourge

A group sympathetic to the Iranian government has taken credit for the outage. According to posts on Telegram and other social media, the group is responsible for a DDoS attack using Beam, an operation that claims to test the ability of servers to operate under heavy loads but, like other “stressors,” are, in fact, fronts for services miscreants pay for to take down third-party sites. In recent days, the same pro-Iran group has taken credit for DDoSes on eBay.

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The resolution to prohibit senators from trading on prediction markets passed yesterday by unanimous consent. The action amends the Senate's conflict-of-interest rules and does not require approval by the House of Representatives. The House has a pending resolution that would impose a similar rule on its own members.

“United States Senators have no business engaging in speculative activities like prediction markets while collecting a taxpayer-funded paycheck, period,” said Sen. Bernie Moreno (R-Ohio), who introduced the resolution. “Serving in Congress should never be about finding new ways to profit; it should be about delivering results for the American people.”

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Under the law, developers of websites, apps, software, or other services designed to "nudify" images risk extensive damages, including punitive damages, if a victim decides to sue. Their offending products could also be blocked in the state. Additionally, Minnesota's attorney general could impose fines up to $500,000 per fake AI nude flagged. Any fines collected would be used to fund services for victims of "sexual assault, general crime, domestic violence, and child abuse," the law stipulates.

On Wednesday, the Minnesota Senate unanimously voted 65–0 to pass the law. That vote came after the bill just as quickly passed in the House last week, the 19th News reported. Gov. Tim Walz is expected to sign the law when it reaches his desk, and if that happens, the state will start enforcing the ban this August.

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The Amazon Web Services (AWS) dashboard posted an April 30 update describing how its UAE and Bahrain cloud regions “suffered damage as a result of the conflict in the Middle East” and are unable to support customer applications. The update also said that “relevant billing operations are currently suspended while we restore normal operations” in a process that “is expected to take several months.”

That wording suggests Amazon will continue to avoid billing AWS customers in the affected regions—ME-CENTRAL-1 and ME-SOUTH-1—after it initially waived all usage-related charges for March 2026 at an estimated cost of $150 million.

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“That the metals are there has been known since the 1990s,” said Sam Campbell, a biologist at the University of Queensland, Australia. “What we didn’t know was whether scorpions evolved to be like that or if it was accidental and they were just picking the metals up from the environment.”

To answer this question, Campbell and his colleagues examined how metals are distributed across the stingers and pincers of different scorpion species. Based on their data, detailed in a recent study published in the Journal of The Royal Society Interface, there was nothing accidental about it.

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Since 2023, the AISI has run a variety of frontier AI models through 95 different Capture the Flag challenges designed to test capabilities on cybersecurity tasks, such as reverse engineering, web exploitation, and cryptography. On the highest-level "Expert" tasks, GPT-5.5 passed an average of 71.4 percent, slightly higher than the 68.6 percent achieved by Mythos Preview (though within the margin of error). In one particularly difficult task that involved building a disassembler to decode a Rust binary, AISI notes that "GPT-5.5 solved the challenge in 10 minutes and 22 seconds with no human assistance at a cost of $1.73" in API calls.

GPT-5.5 also matched Mythos Preview in its progress on "The Last Ones" (TLO), an AISI test range set up to simulate a 32-step data extraction attack on a corporate network. GPT-5.5 succeeded in 3 of 10 attempts on TLO, compared to 2 of 10 for Mythos Preview—no previous model had ever succeeded at the test even once. But GPT-5.5 still fails at AISI's more difficult "Cooling Tower" simulation of an attempted disruption of the control software for a power plant, as every previously tested AI model also has.

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But the test drivers in Maranello (where Ferrari's factory is) must have found something a little lacking with the way the Purosangue drove because they got to work on an upgrade for the SUV, which debuted this week. It's a new Handling Speciale option, featuring new active suspension calibration that better resists the body's roll, pitch, and yaw, something Ferrari says makes the Purosangue feel more compact than its 16.3 feet (4.9 m) might suggest. Expect Ferrari's always-quick steering to feel even sharper, then.

The control strategies for the double-clutch paddle-shift gearbox have also been improved, cutting shift times at the expense of a bit of refinement. But then that's the point: If you want a soothing luxury SUV, many other companies will sell you one. Ferrari buyers want the feeling of the next gear engaging to be a little more brutal, particularly if they're in one of the more permissive traction and stability control settings (or if those are disengaged entirely). In manual mode, that happens when you shift above 5,500 rpm, Ferrari tells us.

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You remember Virgin Galactic, right? The space tourism company was founded 22 years ago by Sir Richard Branson to bring spaceflight to the masses. Hundreds of people began buying tickets to space nearly two decades ago. And after a long, and at times deadly, development campaign, the company reached outer space (defined, somewhat controversially, as an altitude of 80 km and above) in December 2018.

The company began flying passengers in May 2021 with its VSS Unity spacecraft, and impressively completed six spaceflights in 2023. But a few months later, in June 2024, Virgin Galactic stopped flying VSS Unity to focus on the development of its next-generation vehicle capable of more frequent, lower-cost spaceflights.

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“I never really cared to pop off and become popular on social media,” says MG (who is cited only as MG in the lawsuit to protect her identity). “I just used it the way most people did when it first came out, to share their lives with the people closest to them.” She has a little more than 9,000 followers—a robust following, but nowhere close to a massive platform.

Last summer, she received a DM from one of her followers. Did she know, the person asked her, that photos and videos of a woman who looked exactly like MG were circulating on Instagram? MG clicked the link and saw multiple Reels of what appeared to be her face superimposed onto a body that looked exactly like her own. The woman in the photo was scantily clad, with tattoos in the same places as MG.

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