Arch Linux

archie0

Member

Registered: 2012-02-26

Posts: 144

Tearing / UI lag after screen unblank (Intel)

Hey guys,

I've enabled TearFree by following: https://wiki.archlinux.org/index.php/In … free_video
Everything work just fine, but after 'resuming' from screen blanking, it starts tearing. the UI is laggy
It's most noticeable with Firefox, while smooth scrolling is turned on.

Laptop / xf86-video-intel = 2.99.917+364+gb24e758-1 / Haswell / Openbox

Is there a solution without disabling screen blanking?

Thanks

Last edited by archie0 (2015-07-21 13:39:52)

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 8,304

Website

Re: Tearing / UI lag after screen unblank (Intel)

Use compton instead of the "TearFree" option.

compton --backend glx --paint-on-overlay --vsync opengl-mswc

Not really a solution though...

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Para todos todo, para nosotros nada

jsoy9pQbYVNu5nfU

Member

Registered: 2013-04-19

Posts: 108

Re: Tearing / UI lag after screen unblank (Intel)

I previously wasn't using a compositing manager or any extra tear-free-configuration on my Haswell Intel HD4400 at all, but I noticed the exact same issue appearing a while ago after the 2.99.917-5 -> 1:2.99.917+364+gb24e758-1 upgrade. Using a compositing manager fixes the issue, but this behaviour wasn't present before when not using one. The issue is still present in Firefox 40beta.

So this is to confirm that HoaS's suggestion resolves the problem.

archie0

Member

Registered: 2012-02-26

Posts: 144

Re: Tearing / UI lag after screen unblank (Intel)

It doesn't seem to be a Firefox only problem. Menus in pretty much all applications lag badly:

Probably related: https://bbs.archlinux.org/viewtopic.php?id=199922

archie0

Member

Registered: 2012-02-26

Posts: 144

Re: Tearing / UI lag after screen unblank (Intel)

News: It only affects the active window. If I minimize, then maximize, it' it's all good, no lags
I wonder why it happens in the first place.

Last edited by archie0 (2015-07-21 13:51:38)

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 8,304

Website

Re: Tearing / UI lag after screen unblank (Intel)

The wiki thinks that tearing is more prevalent with the sna acceleration method so you could try switching to uxa
https://wiki.archlinux.org/index.php/In … SNA_issues

I can't bring myself to use such an antiquated method in my Arch system so I have never tried this.

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Para todos todo, para nosotros nada

archie0

Member

Registered: 2012-02-26

Posts: 144

Re: Tearing / UI lag after screen unblank (Intel)

Hey guys. As a follow up, this doesn't seem to happen when using the UXA method, but the GUI responsiveness is noticeably worse after switching from SNA.

Soukyuu

Member

Registered: 2014-04-08

Posts: 854

Re: Tearing / UI lag after screen unblank (Intel)

I have the same problem with nvidia, so I don't think it's limited to Intel GPUs. As you mentioned, min->max the windows seems to solve it.

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[ Arch x86_64 | linux | Framework 13 | AMD Ryzen™ 5 7640U | 32GB RAM | KDE Plasma Wayland ]