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KDE runs on the Apple M2 with full GPU acceleration

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Re: KDE runs on the Apple M2 with full GPU acceleration

#11

Post by gjsman-1000 »

sedeki wrote: post #8

(false statement about a buggy M1)

M1RACLES was a security flaw that was hyped as a joke, because it was such a weak bug, and yet it was hyped to oblivion. It totally does not deserve even a mention on the M1 Wikipedia page.

The flaw means that two malicious processes, already on the system, can potentially communicate without the OS being aware. Even though they already could through pipes, desktop icons, files, inter-process communication, screen grabbing each other, over the network, from a remote website, take your pick. Now, what are the odds of two malicious processes, being on a system, with a pre-agreed protocol for communication, going to need a weird processor bug to communicate over for? Absolutely nothing. It's not supposed to happen - but it's basically useless when you are twice-pwned already.

The other flaw that was found was that Pointer Authentication (PAC) could be defeated on the M1 with the PACMAN attack. However, PAC was actually an ARM standard added in ARMv8.4 that affects all ARMv8.4 implementers - the M1 just happens to be the most notable chip with that ARM version. Versions before ARMv8.4 didn't have PAC at all - so, even with that defeated, you aren't worse off than you were before ARMv8.4, so it's just a "sad, we tried, but oh well" thing from ARM's perspective.

Re: KDE runs on the Apple M2 with full GPU acceleration

#12

Post by ultrarunner »

CameronNemo wrote: post #3

Question for those in the know: are there any substantial changes from M1 to M2? I'm sure lots of tuning took place, but is there any major component that was completely overhauled?

Another question for those in the know: there are what seem to be tons of weird GPU problems on macOS under M1— weird cursor tails, choppy scrolling, and very occasional panics that derive from GPU drivers. Are there any workarounds for unstable GPU behavior that were discovered during the RE & driver implementation?

Edit: I've directly observed these on my machine, and it doesn't look to be an isolated incident. There is a video in [2] below.

[0] https://discussions.apple.com/thread/253679057

[1] https://discussions.apple.com/thread/252777347

[2] https://www.reddit.com/r/apple/comments/u486mi/macbook_pro_1...

[3] https://www.reddit.com/r/mac/comments/oldbb9/mba_m1_cursor_g...

[4] https://www.reddit.com/r/applehelp/comments/kfkuqi/is_there_...

[5] https://www.reddit.com/r/mac/comments/r037h2/is_this_amount_...

[6] https://forums.macrumors.com/threads/mac-mini-m1-mouse-curso...

Re: KDE runs on the Apple M2 with full GPU acceleration

#13

Post by sedeki »

gjsman-1000 wrote: post #11
sedeki wrote: post #8

(false statement about a buggy M1)

M1RACLES was a security flaw that was hyped as a joke , because it was such a weak bug, and yet it was hyped to oblivion. It totally does not deserve even a mention on the M1 Wikipedia page. The flaw means that two malicious processes, already on the system , can potentially communicate without the OS being aware. Even though they already could through pipes, desktop icons, files, inter-process communication, screen…

Thank you! I am learning something new every day.

Re: KDE runs on the Apple M2 with full GPU acceleration

#14

Post by snoot »

ultrarunner wrote: post #12
CameronNemo wrote: post #3

Question for those in the know: are there any substantial changes from M1 to M2? I'm sure lots of tuning took place, but is there any major component that was completely overhauled?

Another question for those in the know: there are what seem to be tons of weird GPU problems on macOS under M1— weird cursor tails, choppy scrolling, and very occasional panics that derive from GPU drivers. Are there any workarounds for unstable GPU behavior that were discovered during the RE & driver implementation? Edit: I've directly observed these on my machine, and it doesn't look to be an isolated incident. The…

> there are what seem to be tons of weird GPU problems on macOS under M1— weird cursor tails, choppy scrolling, and very occasional panics that derive from GPU drivers.

Never heard of these. Been using M1 for a year. I don’t think it’s worth taking seriously.

Re: KDE runs on the Apple M2 with full GPU acceleration

#15

Post by david_allison »

ultrarunner wrote: post #12
CameronNemo wrote: post #3

Question for those in the know: are there any substantial changes from M1 to M2? I'm sure lots of tuning took place, but is there any major component that was completely overhauled?

Another question for those in the know: there are what seem to be tons of weird GPU problems on macOS under M1— weird cursor tails, choppy scrolling, and very occasional panics that derive from GPU drivers. Are there any workarounds for unstable GPU behavior that were discovered during the RE & driver implementation? Edit: I've directly observed these on my machine, and it doesn't look to be an isolated incident. The…

Agreed with other commenter: I'd disregard the reports. Been using an M1 for 6 months now on macOS. One kernel panic when closing the lid. Solid machine and no issues with the GPU.

Re: KDE runs on the Apple M2 with full GPU acceleration

#16

Post by nine_k »

ultrarunner wrote: post #12
CameronNemo wrote: post #3

Question for those in the know: are there any substantial changes from M1 to M2? I'm sure lots of tuning took place, but is there any major component that was completely overhauled?

Another question for those in the know: there are what seem to be tons of weird GPU problems on macOS under M1— weird cursor tails, choppy scrolling, and very occasional panics that derive from GPU drivers. Are there any workarounds for unstable GPU behavior that were discovered during the RE & driver implementation? Edit: I've directly observed these on my machine, and it doesn't look to be an isolated incident. The…

It looks like your particular piece of hardware is defective. Try having it replaced.

Re: KDE runs on the Apple M2 with full GPU acceleration

#17

Post by jjtheblunt »

School-Cotton wrote: post #7

Asahi is getting closer and closer to "daily driver" usability at an amazing pace. Anyone have an idea how soon we should expect GPU support to be in mainline?

i'm using it as a daily driver for a couple months easily, but my daily driving happens to not require the not-quite-perfect device drivers. i shutdown for sleep, for instance, which works just fine, since boot and login is super fast and restores everything.

Re: KDE runs on the Apple M2 with full GPU acceleration

#18

Post by nu11ptr »

jjtheblunt wrote: post #17
School-Cotton wrote: post #7

Asahi is getting closer and closer to "daily driver" usability at an amazing pace. Anyone have an idea how soon we should expect GPU support to be in mainline?

i'm using it as a daily driver for a couple months easily, but my daily driving happens to not require the not-quite-perfect device drivers. i shutdown for sleep, for instance, which works just fine, since boot and login is super fast and restores everything.

Possibly stupid q: Why buy a mac if you are just going to run Linux on it? I suspect any comparable PC would be more economical (w/ exception of power draw).
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