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KDE Plasma 6 on Wayland: the Payoff for Years of Plumbing

2 months 3 weeks ago
by George Whittaker Why this release cycle feels different

For most of the last decade, talk about Wayland on KDE sounded like a promise: stronger security, modern graphics, fewer legacy foot‑guns, once the pieces land. With Plasma 6, those pieces finally clicked into place. Plasma 6.1 delivered two changes that go straight to how frames hit your screen, explicit synchronization and smarter buffering, while 6.2 followed with color‑management and HDR work that makes creators and gamers care. Together, they turn “Wayland someday” into a desktop you can log into today without caveats.

The frame pipeline finally behaves Explicit sync: the missing handshake

On X11/older Wayland setups, graphics drivers and compositors often assumed when work finished (“implicit sync”), which is fine until it isn’t, especially on NVIDIA, where that guesswork frequently produced flicker or glitches. Plasma 6.1’s Wayland session speaks the explicit sync protocol instead. Now the compositor and apps exchange fences that say “this frame is done,” reducing visual artifacts and making delivery predictable. If you run the proprietary NVIDIA driver, this is the change you’ve been waiting for: NVIDIA added explicit‑sync support in the 555 series, and XWayland 24.1 gained matching support so many games and legacy X11 apps benefit as well.

What you’ll notice: fewer one‑off hitches, less tearing in XWayland content, and a general sense that motion is “locked in” rather than tentative, particularly with the 555.58+ drivers.

Dynamic triple buffering: fewer “missed the train” stutters

Traditional double buffering is cruel: miss a vblank by a hair and your framerate can fall in half. KWin 6.1 added triple buffering that only kicks in when the compositor predicts a frame won’t make the next refresh, letting another frame be “in flight” without permanently increasing latency. One of KWin’s core developers outlined how it activates selectively, tries not to add avoidable lag, and works regardless of GPU vendor. It sounds simple; it feels like the end of random judder during heavy scenes.

VRR/Adaptive‑Sync polish

Variable refresh is no longer a roulette wheel. KDE’s devs chased down stutter/flicker under Adaptive‑Sync, and those fixes landed in the same timeframe as Plasma 6.1. If your monitor supports FreeSync/G‑Sync Compatible and the GPU stack is sane, frame pacing is noticeably calmer.

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George Whittaker

Perplexity Makes Longshot $34.5 Billion Offer for Chrome

2 months 3 weeks ago
AI startup Perplexity on Tuesday offered to purchase Google's Chrome browser for $34.5 billion as it works to challenge the tech giant's web-search dominance. From a report: Perplexity's offer is significantly more than its own valuation, which is estimated at $18 billion. The company told The Wall Street Journal that several investors including large venture-capital funds had agreed to back the transaction in full. Estimates of Chrome's enterprise value vary widely but recent ones have ranged from $20 billion to $50 billion. U.S. District Judge Amit Mehta is weighing whether to force Google to sell the browser as a means of weakening Google's stranglehold on web search. Mehta last year ruled that Google illegally monopolized the search market and is expected to rule this month on how to restore competition.

Read more of this story at Slashdot.

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