Neowin notes growing support for the "very efficient, potent, royalty-free video codec" AV1, including Microsoft's adding of support for hardware acceleration of AV1 on Windows.

But AV1 even turned up in Intel's announcement this week of the Arc A-series, a new line of discrete GPUs, Neowin reports: Intel has been quick to respond and the company has become the first such GPU hardware vendor to have full AV1 support on its newly launched Arc GPUs. While AMD and Nvidia both offer AV1 decoding with their newest GPUs, neither have support for AV1 encoding.

Intel says that hardware encoding of AV1 on its new Arc GPUs is 50 times faster than those based on software-only solutions. It also adds that the efficiency of AV1 encode with Arc is 20% better compared to HEVC. With this feature, Intel hopes to potentially capture at least some of the streaming and video editing market that's based on users who are looking for a more robust AV1 encoding solution compared to CPU-based software approaches.
From Intel's announcement: Intel Arc A-Series GPUs are the first in the industry to offer full AV1 hardware acceleration, including both encode and decode, delivering faster video encode and higher quality streaming while consuming the same internet bandwidth. We've worked with industry partners to ensure that AV1 support is available today in many of the most popular media applications, with broader adoption expected this year. The AV1 codec will be a game changer for the future of video encoding and streaming.

An anonymous reader quotes a report from Ars Technica: What makes the ["Infinite Mac"] project unique isn't necessarily the fact that it's browser-based; it has been possible to run old DOS, Windows, and Mac OS versions in browser windows for quite a while now. Instead, it's the creative solutions that developer Mihai Parparita has come up with to enable persistent storage, fast download speeds, reduced processor usage, and file transfers between the classic Mac and whatever host system you're running it on. Parparita details some of his work in this blog post.

Beginning with a late 2017 browser-based port of the Basilisk II emulator, Parparita wanted to install old apps to more faithfully re-create the experience of using an old Mac, but he wanted to do it without requiring huge downloads or running as a separate program as the Macintosh.js project does. To solve the download problem, Parparita compressed the disk image and broke it up into 256K chunks that are downloaded on demand rather than up front. "Along with some old fashioned web optimizations, this makes the emulator show the Mac's boot screen in a second and be fully booted in 3 seconds, even with a cold HTTP cache," Parparita wrote.

CPU usage was another issue. Old operating systems and processors didn't really distinguish between active and idle processor states -- your computer was either on or off. So when you emulate these old systems, they'll ramp one of your CPU cores to 100% whether you're actually using the emulator or not. Parparita used existing Basilisk II features to reduce CPU usage, only requiring full performance when "there was user input or a screen refresh was required." Infinite Mac won't run later releases of classic Mac OS (including 8.5, 8.6, and 9) because those releases ran exclusively on PowerPC Macs, dropping support for the old Motorola 68000-based processors. Emulators like QEMU are capable of emulating PowerPC Macs, but (at least as far as I am aware) there are no easy browser-based implementations that exist. Not yet, anyway.

theodp shares a report from Chicago Sun-Times, written by Frank Main: When the school system [Chicago Public Schools] shifted to having students learn remotely in the spring of 2020 near the beginning of the pandemic, it lent students iPads, MacBooks and Windows computer devices so they could do school work and attend virtual classes from home. CPS then spent about $165 million to buy Chromebook desktop computers so that every student from kindergarten through senior year in high school who needed a computer could have one. Students borrowed 161,100 Chromebooks in September 2020. By June 2021, more than 210,000 of those devices had been given out. Of them, nearly 40,000 Chromebooks have been reported lost -- nearly a fifth of those that were lent.

"Schools have made repeated efforts to recover the lost devices from families without success," according to a written statement from CPS officials in response to questions about the missing school property. Also missing are more than 9,600 iPads, 114 televisions, 1,680 printers and 1,127 audiovisual projectors, among many other items. Officials say CPS has bought new computer devices to replace the missing ones. Longtime Slashdot reader theodp notes that "there were 340,658 students enrolled in the Chicago Public Schools (CPS) at the start of the 2020-2021 school year."

The Chrome team: The Chrome team is delighted to announce the promotion of Chrome 100 to the stable channel for Windows, Mac and Linux. Chrome 100 is also promoted to our new extended stable channel for Windows and Mac. This will roll out over the coming days/weeks. Chrome 100.0.4896.60 contains a number of fixes and improvements -- a list of changes is available in the log.

Microsoft is finally making it easier to change your default browser in Windows 11. A new update (KB5011563) has started rolling out this week that allows Windows 11 users to change the default browser with a single click. After testing the changes in December, this new one-click method is rolling out to all Windows 11 users. From a report: Originally, Windows 11 shipped without a simple button to switch default browsers that was always available in Windows 10. Instead, Microsoft forced Windows 11 users to change individual file extensions or protocol handlers for HTTP, HTTPS, .HTML, and .HTM, or you had to tick a checkbox that only appeared when you clicked a link from outside a browser. Microsoft defended its decision to make switching defaults harder, but rival browser makers like Mozilla, Brave, and even Google's head of Chrome criticized Microsoft's approach.

"Microsoft has been struggling to reach a state of convergence between tablet and desktop ever since Windows 8 and the original Surface," argues Neowin, adding "If we're using Windows 11 as a barometer of their progress, they'll likely never get there...."

But meanwhile, writes Slashdot reader segaboy81, "KDE's new swipe gesture is awesome. It's about 1000% smoother than the overview in Windows 11 and the swiping mechanism is easier, too. Is KDE getting better for tablets?"

From Neowin's report: Starting in KDE Plasma 5.25, users with touch screen devices will be able to enter their tasks and virtual desktops overview by simply swiping down from the top edge, but with a special twist. The scale of the windows directly follows the path of your finger. The result is every bit as fluid as you might imagine. While you can achieve the same result in Windows 11 with a simple three-finger swipe up, this implementation looks great and performs great too.

"Rolling Rhino is a tool long ago created by Martin Wimpress, who until recently was part of the Canonical team," one Linux blog pointed out recently. "What it does is basically change the repositories of the DailyLive developers...."

Neowin sees it as a competitive advantage. After more than 17 years, there's a way to get a Ubuntu distro offering the same "rolling" release cycles that helped popularize Arch Linux: While there are many positive qualities that would draw a user into the world of Arch, its headlining feature would be the one that remains the most relevant in today's world of continuous integration and delivery and that's its rolling release strategy. While I don't think Judd Vinet could have predicted the proliferation of DevOps or the massive shift to cloud computing, it must be interesting to see that the entire industry is following the Arch strategy in all sorts of different places. One could even argue that Microsoft Windows has become a rolling release.

While many of Arch's contemporaries have joined the fray, one notable open-source giant has yet to make the leap.

Rolling Rhino looks to change that by converting Ubuntu into a rolling release.
Thanks to Slashdot reader segaboy81 for submitting the story...

Andrew Cunningham writes via Ars Technica: Microsoft's DirectStorage API promises to speed up game-load times, both on the Xbox Series X/S and on Windows PCs (where Microsoft recently exited its developer-preview phase). One of the first games to demonstrate the benefits of DirectStorage on the PC is Square Enix's Forspoken, which was shown off by Luminous Productions technical director Teppei Ono at GDC this week. As reported by The Verge, Ono said that, with a fast NVMe SSD and DirectStorage support, some scenes in Forspoken could load in as little as one second. That is certainly a monstrous jump from the days of waiting for a PlayStation 2 to load giant open-world maps from a DVD.

As a demonstration of DirectStorage, though, Forspoken's numbers are a mixed bag. On one hand, the examples Ono showcased clearly demonstrate DirectStorage loading scenes more quickly on the same hardware, compared to the legacy Win32 API -- from 2.6 seconds to 2.2 seconds in one scene, and from 2.4 seconds to 1.9 seconds in another. Forspoken demonstrated performance improvements on older SATA-based SSDs as well, despite being marketed as a feature that will primarily benefit NVMe drives -- dropping from 5.0 to 4.6 seconds in one scene, and from 4.1 to 3.4 seconds in another. Speed improvements for SATA SSDs have been limited for the better part of a decade now because the SATA interface itself (rather than the SSD controller or NAND flash chips) has been holding them back. So eking out any kind of measurable improvement for those drives is noteworthy.

On the other hand, Ono's demo showed that game load time wasn't improving as dramatically as the raw I/O speeds would suggest. On an NVMe SSD, I/O speeds increased from 2,862MB/s using Win32 to 4,829MB/s using DirectStorage -- nearly a 70 percent increase. But the load time for the scene decreased from 2.1 to 1.9 seconds. That's a decrease that wouldn't be noticeable even if you were trying to notice it. The Forspoken demo ultimately showed that the speed of the storage you're using still has a lot more to do with how quickly your games load than DirectStorage does. One scene that took 24.6 seconds to load using DirectStorage on an HDD took just 4.6 seconds to load on a SATA SSD and 2.2 seconds to load on an NVMe SSD. That's a much larger gap than the one between Win32 and DirectStorage running on the same hardware.

Lucas Brooks, an avid Windows fan who digs through and analyzes its early iterations, recently shared his discovery of an easter egg that's been hiding in Windows 1.0 for nearly 37 years. PC Gamer reports: Brooks discovered the secret, a credits list of Windows developers and a "congratulations" message, buried in the data of a smiley face bitmap file that came with the OS. The data for the credits was encrypted, and according to Brooks, the tools he needed to extract the data didn't even exist at the time of the OS' release.

There's also a name in the credits all PC gamers will recognize: Gabe Newell, co-founder and president of Valve. Newell began his career at Microsoft after dropping out of Harvard, and contributed to the development of the first three iterations of Windows. He also led the team that ported Doom to Windows from DOS, a crucial step in the transition between the operating systems.

Firefox is finally gaining proper AV1 support. Neowin reports: According to an update made to a post on Bugzilla, the Mozilla Foundation is finally ready to add hardware acceleration for the AV1 video format. Developers plan to implement improved AV1 support in the upcoming release of Firefox 100, scheduled to arrive on May 3, 2022. Hardware acceleration for AV1 video brings several noticeable benefits to customers. The standard developed by Alliance for Open Media and initially released in March 2018 offers better video compression than H.264 (about 50%) and VP9 (about 20%). Shifting AV1 video processing from software to hardware improves efficiency and reduces energy consumption, resulting in better battery life on tablets and laptops. Google and Microsoft announced hardware-accelerated AV1 video in Chrome and Edge in late 2020. Mozilla, on the other hand, did not rush to introduce improved AV1 support in Firefox. While it is easy to dunk on Firefox, there is a reason why developers took their time. Hardware-accelerated AV1 video is not something you can add to any computer with Windows 10, and it requires a PC with the most recent and powerful hardware.

apoc.famine shares a report from Ars Technica: Hundreds of thousands of sites use the OAuth protocol to let visitors login using their existing accounts with companies like Google, Facebook, or Apple. Instead of having to create an account on the new site, visitors can use an account that they already have -- and the magic of OAuth does the rest. The Browser-in-the-Browser (BitB) technique capitalizes on this scheme. Instead of opening a genuine second browser window that's connected to the site facilitating the login or payment, BitB uses a series of HTML and cascading style sheets (CSS) tricks to convincingly spoof the second window. The URL that appears there can show a valid address, complete with a padlock and HTTPS prefix. The layout and behavior of the window appear identical to the real thing.

While the method is convincing, it has a few weaknesses that should give savvy visitors a foolproof way to detect that something is amiss. Genuine OAuth or payment windows are in fact separate browser instances that are distinct from the primary page. That means a user can resize them and move them anywhere on the monitor, including outside the primary window. BitB windows, by contrast, aren't a separate browser instance at all. Instead, they're images rendered by custom HTML and CSS and contained in the primary window. That means the fake pages can't be resized, fully maximized or dragged outside the primary window. All users should protect their accounts with two-factor authentication. One other thing more experienced users can do is right click on the popup page and choose "inspect." If the window is a BitB spawn, its URL will be hardcoded into the HTML.

Microsoft is pushing ahead with plans to warn Windows 11 users that have installed the operating system on unsupported hardware. In a new update to Windows 11, a watermark has appeared on the desktop wallpaper for unsupported systems, alongside a similar warning in the landing page of the settings app. From a report: Microsoft had been testing these changes last month, but they're now rolling out to Release Preview just ahead of a full release to all Windows 11 users in the coming days. While Microsoft doesn't mention the addition of a watermark in its "improvements" list for this update, testers have noticed it's included. If Windows 11 is running on unsupported hardware, a new desktop watermark will state "System requirements not met. Go to settings to learn more." It's similar, but far less prominent, to the semi-transparent watermark that appears in Windows if you haven't activated the OS.

A China Eastern Boeing 737-800 with 132 people on board crashed in a remote mountainous area of southern China on Monday, officials said, setting off a forest fire visible from space in the country's worst air disaster in nearly a decade. From a report: More than seven hours after communication was lost with the plane, there was still no word of survivors. The Civil Aviation Administration of China said in a statement the crash occurred near the city of Wuzhou in the Guangxi region. The flight was traveling from Kunming in the southwestern province of Yunnan to the industrial center of Guangzhou along the east coast, it added. Villagers were first to arrive at the forested area where the plane went down, sparking a blaze big enough to be seen on NASA satellite images. Hundreds of rescue workers were swiftly dispatched from Guangxi and neighboring Guangdong province. State media reported all 737-800s in China Eastern's fleet were ordered grounded, while broadcaster CCTV said the airliner had set up nine teams to deal with aircraft disposal, accident investigation, family assistance and other pressing matters.

The board members of the FIDO alliance include Amazon, Google, PayPal, RSA, and Apple and Microsoft (as well as Intel and Arm). It describes its mission as reducing the world's "over-reliance on passwords."

Today Wired reports that the group thinks "it has finally identified the missing piece of the puzzle" for finally achieving large-scale adoption of a password-supplanting technology: On Thursday, the organization published a white paper that lays out FIDO's vision for solving the usability issues that have dogged passwordless features and, seemingly, kept them from achieving broad adoption....

The paper is conceptual, not technical, but after years of investment to integrate what are known as the FIDO2 and WebAuthn passwordless standards into Windows, Android, iOS, and more, everything is now riding on the success of this next step.... FIDO is looking to get to the heart of what still makes passwordless schemes tough to navigate. And the group has concluded that it all comes down to the procedure for switching or adding devices. If the process for setting up a new phone, say, is too complicated, and there's no simple way to log in to all of your apps and accounts — or if you have to fall back to passwords to reestablish your ownership of those accounts — then most users will conclude that it's too much of a hassle to change the status quo.

The passwordless FIDO standard already relies on a device's biometric scanners (or a master PIN you select) to authenticate you locally without any of your data traveling over the Internet to a web server for validation. The main concept that FIDO believes will ultimately solve the new device issue is for operating systems to implement a "FIDO credential" manager, which is somewhat similar to a built-in password manager. Instead of literally storing passwords, this mechanism will store cryptographic keys that can sync between devices and are guarded by your device's biometric or passcode lock. At Apple's Worldwide Developer Conference last summer, the company announced its own version of what FIDO is describing, an iCloud feature known as "Passkeys in iCloud Keychain," which Apple says is its "contribution to a post-password world...."

FIDO's white paper also includes another component, a proposed addition to its specification that would allow one of your existing devices, like your laptop, to act as a hardware token itself, similar to stand-alone Bluetooth authentication dongles, and provide physical authentication over Bluetooth. The idea is that this would still be virtually phish-proof since Bluetooth is a proximity-based protocol and can be a useful tool as needed in developing different versions of truly passwordless schemes that don't have to retain a backup password. Christiaan Brand, a product manager at Google who focuses on identity and security and collaborates on FIDO projects, says that the passkey-style plan follows logically from the smartphone or multi-device image of a passwordless future. "This grand vision of 'Let's move beyond the password,' we've always had this end state in mind to be honest, it just took until everyone had mobile phones in their pockets," Brand says....

To FIDO, the biggest priority is a paradigm shift in account security that will make phishing a thing of the past.... When asked if this is really it, if the death knell for passwords is truly, finally tolling, Google's Brand turns serious, but he doesn't hesitate to answer: "I feel like everything is coalescing," he says. "This should be durable."
Such a change won't happen overnight, the article points out. "With any other tech migration (ahem, Windows XP), the road will inevitably prove arduous."

Tom's Guide tested a Mac Studio workstation equipped with an M1 Ultra with the Geekbench 5.4 CPU benchmarks "to get a sense of how effectively it handles single-core and multi-core workflows."

"Since our M1 Ultra is the best you can buy (at a rough price of $6,199) it sports a 20-core CPU and a 64-core GPU, as well as 128GB of unified memory (RAM) and a 2TB SSD."

Slashdot reader exomondo shares their results: We ran the M1 Ultra through the Geekbench 5.4 CPU benchmarking test multiple times and after averaging the results, we found that the M1 Ultra does indeed outperform top-of-the-line Windows gaming PCs when it comes to multi-core CPU performance. Specifically, the M1 Ultra outperformed a recent Alienware Aurora R13 desktop we tested (w/ Intel Core i7-12700KF, GeForce RTX 3080, 32GB RAM), an Origin Millennium (2022) we just reviewed (Core i9-12900K CPU, RTX 3080 Ti GPU, 32GB RAM), and an even more 3090-equipped HP Omen 45L we tested recently (Core i9-12900K, GeForce RTX 3090, 64GB RAM) in the Geekbench 5.4 multi-core CPU benchmark.

However, as you can see from the chart of results below, the M1 Ultra couldn't match its Intel-powered competition in terms of CPU single-core performance. The Ultra-powered Studio also proved slower to transcode video than the afore-mentioned gaming PCs, taking nearly 4 minutes to transcode a 4K video down to 1080p using Handbrake. All of the gaming PCs I just mentioned completed the same task faster, over 30 seconds faster in the case of the Origin Millennium. Before we even get into the GPU performance tests it's clear that while the M1 Ultra excels at multi-core workflows, it doesn't trounce the competition across the board. When we ran our Mac Studio review unit through the Geekbench 5.4 OpenCL test (which benchmarks GPU performance by simulating common tasks like image processing), the Ultra earned an average score of 83,868. That's quite good, but again it fails to outperform Nvidia GPUs in similarly-priced systems.
They also share some results from the OpenCL Benchmarks browser, which publicly displays scores from different GPUs that users have uploaded: Apple's various M1 chips are on the list as well, and while the M1 Ultra leads that pack it's still quite a ways down the list, with an average score of 83,940. Incidentally, that means it ranks below much older GPUs like Nvidia's GeForce RTX 2070 (85,639) and AMD's Radeon VII (86,509). So here again we see that while the Ultra is fast, it can't match the graphical performance of GPUs that are 2-3 years old at this point — at least, not in these synthetic benchmarks. These tests don't always accurately reflect real-world CPU and GPU performance, which can be dramatically influenced by what programs you're running and how they're optimized to make use of your PC's components.
Their conclusion? When it comes to tasks like photo editing or video and music production, the M1 Ultra w/ 128GB of RAM blazes through workloads, and it does so while remaining whisper-quiet. It also makes the Mac Studio a decent gaming machine, as I was able to play less demanding games like Crusader Kings III, Pathfinder: Wrath of the Righteous and Total War: Warhammer II at reasonable (30+ fps) framerates. But that's just not on par with the performance we expect from high-end GPUs like the Nvidia GeForce RTX 3090....

Of course, if you don't care about games and are in the market for a new Mac with more power than just about anything Apple's ever made, you want the Studio with M1 Ultra.

joshuark writes: In one of those in-your-face irony or karmic debt, Bleeping Computer reports that Microsoft Defender tags Office updates as ransomware. The article states: "Windows admins were hit today by a wave of Microsoft Defender for Endpoint false positives where Office updates were tagged as malicious in alerts pointing to ransomware behavior detected on their systems."

Further on, an explanation for the source of the karmic irony is: "The root cause of the false positives was a recently deployed update within service components for detecting ransomware alerts." Couldn't this have waited for April 1st?

Bleeping Computer goes on, "A Microsoft spokesperson was not available for comment when contacted by BleepingComputer earlier today."

Microsoft brought DirectStorage to Windows PCs this week. The API promises faster load times and more detailed graphics by letting game developers make apps that load graphical data from the SSD directly to the GPU. Now, Nvidia and IBM have created a similar SSD/GPU technology, but they are aiming it at the massive data sets in data centers. From a report: Instead of targeting console or PC gaming like DirectStorage, Big accelerator Memory (BaM) is meant to provide data centers quick access to vast amounts of data in GPU-intensive applications, like machine-learning training, analytics, and high-performance computing, according to a research paper spotted by The Register this week. Entitled "BaM: A Case for Enabling Fine-grain High Throughput GPU-Orchestrated Access to Storage" (PDF), the paper by researchers at Nvidia, IBM, and a few US universities proposes a more efficient way to run next-generation applications in data centers with massive computing power and memory bandwidth. BaM also differs from DirectStorage in that the creators of the system architecture plan to make it open source.

Newly discovered data-destroying malware was observed earlier today in attacks targeting Ukrainian organizations and deleting data across systems on compromised networks. BleepingComputer reports: "This new malware erases user data and partition information from attached drives," ESET Research Labs explained. "ESET telemetry shows that it was seen on a few dozen systems in a limited number of organizations." While designed to wipe data across Windows domains it's deployed on, CaddyWiper will use the DsRoleGetPrimaryDomainInformation() function to check if a device is a domain controller. If so, the data on the domain controller will not be deleted. This is likely a tactic used by the attackers to maintain access inside the compromised networks of organizations they hit while still heavily disturbing operations by wiping other critical devices.

While analyzing the PE header of a malware sample discovered on the network of an undisclosed Ukrainian organization, it was also discovered that the malware was deployed in attacks the same day it was compiled. "CaddyWiper does not share any significant code similarity with HermeticWiper, IsaacWiper, or any other malware known to us. The sample we analyzed was not digitally signed," ESET added. "Similarly to HermeticWiper deployments, we observed CaddyWiper being deployed via GPO, indicating the attackers had prior control of the target's network beforehand."

Microsoft has begun testing promotions for some of its other products in the File Explorer app on devices running its latest Windows 11 Insider build. From a report: The new Windows 11 "feature" was discovered by a Windows user and Insider MVP who shared a screenshot of an advertisement notification displayed above the listing of folders and files to the File Explorer, the Windows default file manager. As shown in the screenshot, Microsoft will use such ads to promote other Microsoft products, for instance, about how to "write with confidence across documents, email, and the web with advanced writing suggestions from Microsoft Editor. As you can imagine, the reaction to this was adverse, to say the least, with some saying that "File Explorer one of the worst places to show ads," while others added that this is the way to go if Microsoft wants "people ditching Explorer for something else."

Valve shipped its $400 handheld gaming console, the Steam Deck, before all its promised features were ready -- but one of the biggest is now here. From a report: You can now install Windows 10 on a Steam Deck and actually expect it to work because Valve has just released the all-important GPU, Wi-Fi and Bluetooth drivers you'll need to download and play games. Importantly, you'll need to wipe a Steam Deck to do this, there's no dual-boot yet, and Valve says you can only install Windows 10 since the Steam Deck's current BIOS apparently doesn't include firmware TPM support (which Microsoft infamously requires for Windows 11). Speakers and headphone jack don't work yet as there are no audio drivers.