Arch Linux

antony

Member

Registered: 2011-07-14

Posts: 43

[SOLVED] Poor (aliased?) image and font rendering with KDE plasma

Since a few weeks, I have had extremely poor image rendering on my KDE plasma desktop (vanilla from the Arch repos).  An example is at
http://pasteboard.co/nKpGFDGVa.png
1) note the very blurry text
2) note the blurry icons at the bottom right of the window (these come from yakuake)

FWIW switching to LXQt complelety solves these issues.

The laptop I am on uses Intel graphics.  Not sure what other information may be relevant.

Thanks in advance.

Last edited by antony (2016-11-06 18:58:18)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,566

Re: [SOLVED] Poor (aliased?) image and font rendering with KDE plasma

Looks like (some, apparently started "late" - not the desktop shell, could be a matter of "Text.NativeRendering", though) QtQuick elements are affected.
=> What does text in kwrite look like?
Any custom settings on the intel GL driver (on nvidia, I'd say FXAA is loaded)?
Are those applications (eg. systemsettings/yakuake) also affected on LXQt?

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antony

Member

Registered: 2011-07-14

Posts: 43

Re: [SOLVED] Poor (aliased?) image and font rendering with KDE plasma

kwrite doesn't have any problems (text looks good).  Neither yakuake nor systemsettings are affected under LXQt.
I have a vanilla driver from xf86-video-intel.  The contents of /etc/X11/xorg.conf.d/* are

# Read and parsed by systemd-localed. It's probably wise not to edit this file
# manually too freely.
Section "InputClass"
        Identifier "system-keyboard"
        MatchIsKeyboard "on"
        Option "XkbLayout" "fr,us"
        Option "XkbModel" "terminate:ctrl_alt_bksp"
EndSection
Section "InputClass"
    Identifier "Natural scroll"
    Option "VertScrollDelta" "-50"
    Option "HorizScrollDelta" "-50"
EndSection
Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "AccelMethod"  "sna"
EndSection

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,566

Re: [SOLVED] Poor (aliased?) image and font rendering with KDE plasma

> Neither yakuake nor systemsettings are affected under LXQt.
This could imply a conflict w/ the compositor, suspend if (SHIFT+Alt+F12) and start the otherwise problematic application.

If not, try uxa instead of sna resp. uninstall xf86-video-intel (which will get you the modesetting driver).

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

antony

Member

Registered: 2011-07-14

Posts: 43

Re: [SOLVED] Poor (aliased?) image and font rendering with KDE plasma

Suspending the compositor or switching to uxa did not help.  Uninstalling xf86-video-intel did solve the issue, and I see it's recommended by many people independently of this specific problem... thanks!