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Screen flashing in SDDM login screen


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Hi everyone,

I just installed kde-plasma-5 and sddm and I'm getting weird behavior when logging in. When I move the mouse over the password field, the screen flickers and flashes. I'm using xf86-video-intel drivers.

I haven't touched the Xorg configuration file from installation.

Is there something I need to install? Is this just a bug in SDDM? I got the behavior with xorg-drivers as well.

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I've tried using modesetting per an answer on the Gentoo forums but it hasn't worked. 

Section "Device"
        Identifier  "Intel Graphics"
        Driver      "modesetting"
        Option      "AccelMethod"    "glamor"
        Option      "DRI"            "3"

The Xorg log confirms that it is loading the modesetting driver:

[     7.552] (II) LoadModule: "modesetting"
[     7.553] (II) Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
[     7.554] (II) Module modesetting: vendor="X.Org Foundation"
[     7.554]     compiled for 1.20.10, module version = 1.20.10
[     7.554]     Module class: X.Org Video Driver
[     7.554]     ABI class: X.Org Video Driver, version 24.1
[     7.554] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
Edited by rwardrup
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  • Funtoo Linux BDFL

We talked about this on Discord a bit -- I definitely recommend trying out our official desktop (gnome in particular) stage3's first, and ensuring those are working well for you, before playing with KDE, as we don't have a KDE stage yet and it's not officially support (but in progress): https://www.funtoo.org/Support_Matrix

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