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I helped fix sleep-wake hangs on Linux with AMD GPUs

nyanpasu64.gitlab.io

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Re: I helped fix sleep-wake hangs on Linux with AMD GPUs

#211

Post by adolph »

winrid wrote: post #182
adolph wrote: post #125

Earlier quoted context omitted.

> Lenovo manages to do sleep/wake fine in Linux almost as well as Apple in my experience and I sleep/wake my Lenovo laptop regularly -- this is across two different models I have used so far (X1 and X390). I'd rate my OpenBSD X1 as not terrible too. Not as smooth as MacBook but adequate.

Carbon or Extreme? I can't even get resume on windows to work properly on my 1st gen X1 Extremes

Carbon, gen6, chosen after reading Joshua Stein [0]. As I understand it, OpenBSD and NVIDIA aren't a lovely pairing.

0. https://jcs.org/2019/08/14/x1c7

Re: I helped fix sleep-wake hangs on Linux with AMD GPUs

#212

Post by megous »

whatever1 wrote: post #148
megous wrote: post #45

Earlier quoted context omitted.

Pretty much all smartphones can do this.

*Recent. It took many years for smartphones to catch up with iPhones in terms of energy drain. Even today iPhones have the smallest batteries across their competitors.

Battery life has nothing to do with suspend/resume reliability.

Every smartphone does suspend/resume thousands of times each day, it has to be nearly 100% reliable feature and it is, otherwise users would be majorly pissed off.

Re: I helped fix sleep-wake hangs on Linux with AMD GPUs

#213

Post by lillecarl »

vladvasiliu wrote: post #170
lillecarl wrote: post #75

Earlier quoted context omitted.

I'm super happy with S0 on Linux. The implementation is all about doing as little as possible but effectively remain "on".

What's the point, though? If it doesn't actually do anything, why keep it on?

Because you don't have to reinitialize hardware if you don't shut it off. Which is hard and causes problems. It's easier to just go into power saving++.

If you want your device to be off, power it off.

Re: I helped fix sleep-wake hangs on Linux with AMD GPUs

#214

Post by bzzzt »

tiagod wrote: post #206
bzzzt wrote: post #168

Earlier quoted context omitted.

That's annoying but could also be caused by the monitor or TV HDMI implementation.

I don't think so. In that state, video will jump and stutter wildly, run very fast, and audio will be very broken. It's not just the sound that's affected.

Which all could be caused by a broken HDMI implementation (refresh, synchronization and audio are all encoded and synchronized). But of course I could be wrong and every M1 Mac has severe issues connecting to HDMI TV's.

Re: I helped fix sleep-wake hangs on Linux with AMD GPUs

#215

Post by sroussey »

bzzzt wrote: post #214
tiagod wrote: post #206

Earlier quoted context omitted.

I don't think so. In that state, video will jump and stutter wildly, run very fast, and audio will be very broken. It's not just the sound that's affected.

Which all could be caused by a broken HDMI implementation (refresh, synchronization and audio are all encoded and synchronized). But of course I could be wrong and every M1 Mac has severe issues connecting to HDMI TV's.

Or it could be the cable.

For me, I have an M2 and no issues. Was worried about v1 issues (same for VisionPro—will wait until v2)

Re: I helped fix sleep-wake hangs on Linux with AMD GPUs

#216

Post by tiagod »

bzzzt wrote: post #214
tiagod wrote: post #206

Earlier quoted context omitted.

I don't think so. In that state, video will jump and stutter wildly, run very fast, and audio will be very broken. It's not just the sound that's affected.

Which all could be caused by a broken HDMI implementation (refresh, synchronization and audio are all encoded and synchronized). But of course I could be wrong and every M1 Mac has severe issues connecting to HDMI TV's.

I've tried a recent LG OLED, and a bunch of other TVs at friends and it happens every time if the laptop has been sleeping previously. If it's a fresh boot it never happens. That leads me to believe it's something on the laptop side.

Re: I helped fix sleep-wake hangs on Linux with AMD GPUs

#217

Post by tiagod »

sroussey wrote: post #215
bzzzt wrote: post #214

Earlier quoted context omitted.

Which all could be caused by a broken HDMI implementation (refresh, synchronization and audio are all encoded and synchronized). But of course I could be wrong and every M1 Mac has severe issues connecting to HDMI TV's.

Or it could be the cable. For me, I have an M2 and no issues. Was worried about v1 issues (same for VisionPro—will wait until v2)

Tried a bunch of cables, including expensive ones. The only thing that solves this is rebooting the laptop.

Re: I helped fix sleep-wake hangs on Linux with AMD GPUs

#218

Post by mafuyu »

jorvi wrote: post #210
mafuyu wrote: post #208

Earlier quoted context omitted.

I just did `ExecStart` with `multi-user.target`. That implies the unit is `simple`, so it very well could be sequencing incorrectly at boot and failing. That's a good point; I'll have to keep that in mind!

Apologies for the confusion, I don't mean it was failing to run. If you don't add "RemainAfterExit", the service will run at every boot, because after a reboot it is considered "inactive. This will execute your shell code, which effectively toggles wakeup. "RemainAfterExit" is meant for unit files that change the state of your system. After running once, the service will be considered "active", until you manually dea…

Ahh, gotcha, thanks for the tip. Yeah, systemd is easy to reach for, but it certainly has plenty of footguns.
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