Graphical glitch after login and while switching desktops

etregoning · 2017-02-19 08:50:13

Hello, I just recently installed Arch 2017.02.01 with KDE Plasma 5 and sddm. This isn't really a functionality issue but it would still be nice if I could fix it somehow.

When switching desktops, a large square appears in the top right corner and stays there until I stop scrolling through desktops. It only does this on the cube desktop switcher, it does not do it with the sliding or fading desktop. It also does not do it with the ctrl + f11 (default hotkey) cube desktop switcher though. Here is a screenshot for reference.

http://i.imgur.com/NLBpFoy.png

Also, when I login to the computer, after the splash screen is done, the bottom portion of the splash screen remains visible after the desktop loads in. Screenshot:

http://i.imgur.com/i04uTQB.png

First thing I thought to check was my display drivers, and lspci -v shows the following, however I'm not really familiar with kernel drivers, so I'm not sure if this is the right driver, but there didn't seem to be much variety for intel drivers when installing.

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09) (prog-if 00 [VGA controller])
	Subsystem: ASUSTeK Computer Inc. Device 19ad
	Flags: bus master, fast devsel, latency 0, IRQ 49
	Memory at b1000000 (64-bit, non-prefetchable) [size=16M]
	Memory at c0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 4000 [size=64]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

Anyone have any idea what could be causing this issue? I'm not really sure what else to look at, and I've already googled the issue but didn't find anything. Thanks!

-- mod note: Replaced oversized images with links. Please see guidelines on image sizes. Trilby --

Last edited by Trilby (2017-02-19 11:41:20)

Head_on_a_Stick · 2017-02-19 11:04:42

You can try switching to the UXA acceleration method for xf86-video-intel:

https://wiki.archlinux.org/index.php/In … SNA_issues

Or perhaps force DRI2, as also suggested on the linked page.

However, I would actually recommend removing xf86-video-intel altogether and instead using Xorg's built-in modesetting DDX driver with the generic Glamor acceleration method.

etregoning · 2017-02-20 02:34:13

Head_on_a_Stick wrote:

You can try switching to the UXA acceleration method for xf86-video-intel:
https://wiki.archlinux.org/index.php/In … SNA_issues
Or perhaps force DRI2, as also suggested on the linked page.
However, I would actually recommend removing xf86-video-intel altogether and instead using Xorg's built-in modesetting DDX driver with the generic Glamor acceleration method.

Alright thanks, I'll try it. I'm checking it out on the wiki atm -- to use the modesetting driver, do I need to activate anything, or will it just automatically fall back on it when I delete the intel driver? And what exactly is glamour acceleration method? I'm not seeing anything about it on the wiki. Thanks.

Head_on_a_Stick · 2017-02-20 07:46:42

etregoning wrote:

will it just automatically fall back on it when I delete the intel driver?

^ This.

what exactly is glamour acceleration method?

It is a generic acceleration method that can be used by all graphics cards, the Intel DDX driver uses methods only applicable to the Intel (micro)architecture to gain a performance margin.

For more, see https://www.freedesktop.org/wiki/Software/Glamor/

etregoning · 2017-02-21 19:28:29

Well, I tried removing the xf86-video-intel driver, but it didn't fix the problem

c00ter · 2017-02-22 17:15:40

You will also need to remove /etc/X11//xorg.conf.d/20-intel.conf if any. Please be sure to re-boot. Best of luck.

Regards

Arch Linux

#1 2017-02-19 08:50:13

Graphical glitch after login and while switching desktops

#2 2017-02-19 11:04:42

Re: Graphical glitch after login and while switching desktops

#3 2017-02-20 02:34:13

Re: Graphical glitch after login and while switching desktops

#4 2017-02-20 07:46:42

Re: Graphical glitch after login and while switching desktops

#5 2017-02-21 19:28:29

Re: Graphical glitch after login and while switching desktops

#6 2017-02-22 17:15:40

Re: Graphical glitch after login and while switching desktops

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