Arch Linux

mahen

Member

From: France

Registered: 2007-02-05

Posts: 72

KDE : slow font rendering

Hi everyone !

I'm completely new to Arch (coming from Ubuntu) and was really amazed at how fast my system could get and how easy it was to set it up.

I only have one problem left (apart from the missing japanese fonts) :

When anti-aliasing is turned on (in KDE), fonts rendering gets really slow. It can be noticed when selecting a big chunk of text with the mouse, in Konqueror or Kate : you can feel it takes some time. Or when switching tabs in Konqueror. Those are definitely much faster in Opera and Firefox.

However, with anti-aliasing turned off, it is almost instant, as it should. But it looks really awful (in general, I have much trouble getting a good font rendering in linux. Probably because of my 19" LCD that only reached 1280x1024)

Do you have any idea ? My config is : nvidia geforce 6600, proprietary drivers, athlon 64 3200+. I tried some MS fonts and the DejaVu font.

Just in case, you may see my xorg.conf, below.

THANKS EVER SO MUCH for reading this far I think my problem may concern many other newbies like me

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildmeister@builder3)  Thu Nov  9 17:56:12 PST 2006

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    Screen      1  "Screen1" RightOf "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
    RgbPath         "/usr/lib/X11/rgb"
EndSection

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
EndSection

Section "ServerFlags"
    Option         "Xinerama" "0"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
    Option         "XkbLayout" "fr"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "LG L1915S"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Monitor"
    # HorizSync source: xconfig, VertRefresh source: xconfig
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "TV-0"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Videocard0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 6600"
    BusID          "PCI:2:0:0"
    Screen          0
EndSection

Section "Device"
    Identifier     "Videocard1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 6600"
    BusID          "PCI:2:0:0"
    Screen          1
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Videocard0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "metamodes" "CRT: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
        Modes      "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Videocard1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "metamodes" "TV: 800x600 +0+0"
    SubSection     "Display"
        Depth       24
        Modes      "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

mahen

Member

From: France

Registered: 2007-02-05

Posts: 72

Re: KDE : slow font rendering

Oh gees, it seems the culprit was the "sub-hinting" (halo de sous-pixellisation) option. I thought I had tried all possible combinations

However, I wonder if it is supposed to slow down the display that much...

Anyway... I would still be eager to find a solution to display japanese fonts

Thanks for listening to me

Last edited by mahen (2007-02-05 11:55:09)

lucke

Member

From: Poland

Registered: 2004-11-30

Posts: 4,019

Re: KDE : slow font rendering

I have installed ttf-kochi-substitute from AUR, then run qtconfig and set Kochi Mincho and Kochi Gothic as substitutes for Dejavu Sans (my default font).

mahen

Member

From: France

Registered: 2007-02-05

Posts: 72

Re: KDE : slow font rendering

lucke : that's perfect, thanks a lot

islamguide.com

Member

Registered: 2006-12-08

Posts: 98

Re: KDE : slow font rendering

Section 'Device'
    Option         "DPI" "96 x 96"

Try the above, instantly solves the greater part of my font problems.. Now fonts looks just like they should as in Windows..

I disabled antialiasing totally partly cos of this.

---

Thanks in advance!