ASUS TUF Laptops With Ryzen Are Now Patched To Stop Overheating On Linux

The AMD Ryzen Linux laptop experience continues improving albeit quite tardy on some elements of the support. In addition to the AMD Sensor Fusion Hub driver finally being released and current/voltage reporting for Zen CPUs on Linux, another step forward in Ryzen mobile support is a fix for ASUS TUF laptops with these processors.

5 Hours Ago - AMD - ASUS TUF + Ryzen Mobile - 12 Comments
Benchmarks Of Arch Linux's Zen Kernel Flavor

Following the recent Linux kernel tests of Liquorix and other scheduler discussions (and more), some requests from premium supporters rolled in for seeing the performance of Arch Linux's Zen kernel package against the generic kernel. Here are those benchmark results.

13 Hours Ago - AMD - Arch Linux Zen Benchmarks - 6 Comments

16 January

Red Hat Recommends Disabling The Intel Linux Graphics Driver Over Hardware Flaw

It's been another day testing and investigating CVE-2019-14615, a.k.a. the Intel graphics hardware issue where for Gen9 all turned out to be okay but for Gen7 graphics leads to some big performance hits. Besides the Core i7 tests published yesterday in the aforelinked article, tests on relevant Core i3 and i5 CPUs are currently being carried out for seeing the impact there (so far, it's looking to be equally brutal).

16 January 08:05 PM EST - Red Hat - CVE-2019-14615 - 22 Comments
Ryzen CPUs On Linux Finally See CCD Temperatures, Current + Voltage Reporting

One of the few frustrations with the AMD Ryzen CPU support on Linux to date has been besides the often delayed support for CPU temperature reporting has been the mainline kernel not supporting voltage readings and other extra sensors. But that is finally changing with the "k10temp" driver being extended to include current and voltage reporting plus CCD temperature reporting on Zen 2 processors.

16 January 01:39 PM EST - AMD - k10temp - 40 Comments
LLVM 10 Adds Option To Help Offset Intel JCC Microcode Performance Impact

Disclosed back in November was the Intel Jump Conditional Code Erratum that necessitated updated CPU microcode to mitigate and with that came with a nearly across the board performance impact. But Intel developers had been working on assembler patches for helping to reduce that performance hit. The GNU Assembler patches were merged back in December while now ahead of LLVM 10.0 that alternative toolchain has an option for helping to recover some of the lost performance.

16 January 09:06 AM EST - Intel - --x86-branches-within-32B-boundaries - 2 Comments

15 January

Intel's Mitigation For CVE-2019-14615 Graphics Vulnerability Obliterates Gen7 iGPU Performance

Yesterday we noted that the Linux kernel picked up a patch mitigating an Intel Gen9 graphics vulnerability. It didn't sound too bad at first but then seeing Ivy Bridge Gen7 and Haswell Gen7.5 graphics are also affected raised eyebrows especially with that requiring a much larger mitigation. Now in testing the performance impact, the current mitigation patches completely wreck the performance of Ivybridge/Haswell graphics performance.

15 January 09:00 PM EST - Display Drivers - 61 Comments
Kubuntu Focus Offers The Most Polished KDE Laptop Experience We've Seen Yet

As we mentioned back in December, a Kubuntu-powered laptop is launching with the blessing of Canonical and the Kubuntu Community Council. That laptop, the Kubuntu Focus, will begin shipping at the beginning of February while the pre-orders opened today as well as the embargo lift. We've been testing out the Kubuntu Focus the last several weeks and it's quite a polished KDE laptop experience for those wanting to enjoy KDE Plasma for a portable computing experience without having to tweak the laptop for optimal efficiency or other constraints.

15 January 03:20 PM EST - Computers - 35 Comments
Intel Sends Out Linux Patches For Speed Select Core-Power Controls

Coming to Linux last year with the 5.3 kernel was Intel Speed Select Technology support as a Cascade Lake feature for optimizing the per-core performance configurations to favor certain cores at the cost of reducing the performance capacity for other CPU cores. That Intel Speed Select (SST) support for Linux is now being enhanced with core-power controls.

15 January 12:05 AM EST - Intel - Speed Select Core-Power - 1 Comment

14 January

A New Desktop Theme Is Coming For Ubuntu 20.04 LTS

With Ubuntu 20.04 to see installation on many desktops (and servers) given its Long-Term Support status, Canonical and the Yaru community team have begun working on a successor to the Yaru theme for this Linux distribution release due out in April.

14 January 07:31 PM EST - Ubuntu - Ubuntu 20.04 LTS - 46 Comments
Unity 8 Desktop On Ubuntu 20.04 LTS Could Take A Year Before Being Usable

While Canonical no longer develops their Unity 8 stack for Ubuntu, the UBports crew continues advancing Ubuntu Touch mobile as a community project and as part of that they do work on Unity 8 for their devices and desktop support. But if you're hoping to see Unity 8 running nicely on Ubuntu 20.04 LTS, that could be a while.

14 January 12:51 AM EST - Ubuntu - Unity 8 + Ubuntu 20.04 LTS - 62 Comments

13 January

Fedora 32 Greenlit For Enabling FSTRIM Support By Default

Back in December was the proposal to finally enable FSTRIM by default for Fedora 32 in benefiting solid-state storage. Today the formal approval was given by the Fedora Engineering and Steering Committee to go ahead with this long overdue change.

13 January 03:40 PM EST - Fedora - Fedora 32 + FSTRIM - 7 Comments
Looking At The Linux Performance Two Years After Spectre / Meltdown Mitigations

Last week marked the two year anniversary since the formal public disclosure of the Spectre and Meltdown disclosures. To commemorate that anniversary, I was running some fresh benchmarks of various Intel desktop and server processors with the in-development Ubuntu 20.04 LTS to look at the performance impact today with the default CPU vulnerability mitigations and then again with the mitigations disabled at run-time.

13 January 12:10 PM EST - Software - 32 Comments
Intel Revs Linux Patches For Per-Client Engine Busyness - Allowing For Great GPU Insight

One of the set of patches for Intel's Linux kernel graphics driver that have been floating around for more than one year is about exposing per-client (process) statistics in how each application is making use of the GPU's render/blitter/video hardware and various insightful statistics related to that. The patches aren't queued for mainline yet but at least a new revision of the work was published.

13 January 07:00 AM EST - Intel - GPU TOP-Like Experience - 6 Comments

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