Announcing flicker-free boot for Fedora 29

Re:Announcing flicker-free boot for Fedora 29 by twic on Tuesday October 02, 2018 @07:51PM (#18126640)

My favourite thing my Ubuntu machine does is that when you wake it from sleep, it shows you the desktop as it was when you put it to sleep for a fraction of a second, then flickers a few times while it puts up a lock screen, then shows two login dialogs stacked on top of each other, one larger than the other.

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Re:Announcing flicker-free boot for Fedora 29 by wlll on Tuesday October 02, 2018 @10:02PM (#18127135)

My mac does that. I've not tested it on Mojave, but it did it every time without fail on High Sierra.

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Re:Announcing flicker-free boot for Fedora 29 by wlll on Wednesday October 03, 2018 @11:36AM (#18131245)

Tested this, my mac still does this on Mojave.

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Re:Announcing flicker-free boot for Fedora 29 by amiga-workbench on Wednesday October 03, 2018 @05:06AM (#18128666)

Thats probably because the lockscreen is just a fullscreen application under X11, Weyland actually understands the concept of a lockscreen and keeps things a tad more secure.

I get the same problem on Fedora, its irritating.

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Re:Announcing flicker-free boot for Fedora 29 by chupasaurus on Wednesday October 03, 2018 @06:09AM (#18128900)

Not probably, lockscreen is the fullscreen app which handles all keyboard/mouse inputs itself.

And I hadn't that problem in KDE.

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Re:Announcing flicker-free boot for Fedora 29 by dingaling on Wednesday October 03, 2018 @07:56AM (#18129335)

With KDE4 I often have to wait whilst the lockscreen is paged back out of swap.

Invariably I miss the fact that the disk-activity light is still lit, start typing my password and then become annoyed because it only caught the last few characters. So then I have to wait AGAIN whilst it proudly announces an authentication failure and punishes me with a further delay.

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Re:Announcing flicker-free boot for Fedora 29 by chupasaurus on Wednesday October 03, 2018 @09:48AM (#18130114)

So your problem was a process going to swap (or not, Linux still has problems with disk i/o, especially going from hybernation, although bug #12309 is gone), rest are the consequences.

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Re:Announcing flicker-free boot for Fedora 29 by meroje on Wednesday October 03, 2018 @08:41AM (#18129587)

macOS does that to me too

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Re:Announcing flicker-free boot for Fedora 29 by CoolGuySteve on Wednesday October 03, 2018 @07:34AM (#18129245)

When I open my laptop, Ubuntu wakes up, shows the desktop and then immediately blacks the screen until I move the mouse.

I got so used to that jankiness that I didn’t notice it until I was showing someone my laptop who was interested in buying the same model.

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Re:Announcing flicker-free boot for Fedora 29 by cies on Wednesday October 03, 2018 @08:37AM (#18129565)

Wayland will specifically fix this. Fixing it in X has proven to be hard if not impossible.

(there are other security fixes by adopting Wayland)

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Re:Announcing flicker-free boot for Fedora 29 by bwat49 on Wednesday October 03, 2018 @11:37AM (#18131265)

what version of ubuntu are you running?

I've seen this behavior with the old 'gnome-screensaver' (which I think ubuntu hasn't used for quite a while), but with the current gnome-shell lock screen it behaves properly and doesn't black out the screen when I open my laptop.

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Re:Announcing flicker-free boot for Fedora 29 by CoolGuySteve on Wednesday October 03, 2018 @04:06PM (#18134329)

16.04

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Re:Announcing flicker-free boot for Fedora 29 by rrdharan on Tuesday October 02, 2018 @09:13PM (#18126946)

Yep, also obviously a security (information disclosure / privacy) flaw that is quite difficult to solve apparently.

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Re:Announcing flicker-free boot for Fedora 29 by rhizome on Tuesday October 02, 2018 @10:30PM (#18127235)

A decent place to start reading: https://askubuntu.com/questions/453296/privacy-issue-when-wa...

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Re:Announcing flicker-free boot for Fedora 29 by hendry on Wednesday October 03, 2018 @01:49AM (#18127902)

I've seen this on MacOS too.

Never seen it with Arch with https://wiki.archlinux.org/index.php/Slock mind

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Re:Announcing flicker-free boot for Fedora 29 by kreetx on Wednesday October 03, 2018 @01:09AM (#18127758)

Same here on ubuntu with xfce. They should at least overlay something before going to sleep as a quick fix.

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Re:Announcing flicker-free boot for Fedora 29 by pbhjpbhj on Wednesday October 03, 2018 @07:01AM (#18129114)

Like, the lockscreen, perhaps.

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Re:Announcing flicker-free boot for Fedora 29 by k_bx on Wednesday October 03, 2018 @09:39AM (#18130044)

> when you wake it from sleep, it shows you

wow, a lucky person, Ubuntu on my Desktop never wakes up :)

// p.s.: still better than macOS/Windows for development, I just don't turn it off, that's all

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Re:Announcing flicker-free boot for Fedora 29 by O_H_E on Wednesday October 03, 2018 @12:28PM (#18131871)

#DontStopWorking

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Re:Announcing flicker-free boot for Fedora 29 by dguaraglia on Wednesday October 03, 2018 @02:02AM (#18127944)

At the risk of sounding like a fanboi: try Pop!_OS (I know, the spelling is ridiculous). It's essentially Ubuntu with a bunch of those things that make it feel janky ironed out. The biggest one for me is it does a great job of managing the discrete GPU on my laptop. I've been using it for a few weeks and couldn't be happier.

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Re:Announcing flicker-free boot for Fedora 29 by abdullahkhalids on Wednesday October 03, 2018 @07:27PM (#18135666)

I am surprised because I had this bug on my Debian setup once, but it was solved several years ago.

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Re:Announcing flicker-free boot for Fedora 29 by Someone on Wednesday October 03, 2018 @03:29AM (#18128239)

”it shows you the desktop as it was when you put it to sleep”

Bad idea, security-wise.

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Re:Announcing flicker-free boot for Fedora 29 by kiriakasis on Wednesday October 03, 2018 @03:38AM (#18128271)

All my gnome setup always did this. I find it deeply broken

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Re:Announcing flicker-free boot for Fedora 29 by audidude on Wednesday October 03, 2018 @05:38PM (#18135051)

My understanding when looking back at those bugs, is that they were driver bugs where the driver lied about having committed to the back-buffer. GNOME, at least, tries to blank things and submit the right commands to ensure it's cleared before releasing the suspend lock.

But if the GPU driver is broken about command committal, then there is only so much you can do short of fixing those .

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Re:Announcing flicker-free boot for Fedora 29 by puzzlingcaptcha on Wednesday October 03, 2018 @03:58AM (#18128350)

reminds me of https://url.rw/?https%3A%2F%2Fwww.jwz.org%2Fblog%2F2014%2F04... (jwz's blog doesn't like HN as a referer)

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