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Old 03-11-08, 12:39 AM   #169
evanlec
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Join Date: Dec 2007
Posts: 5
Default Re: Slow AA text rendering in KDE

Quote:
Originally Posted by hyfans
in technical way, you can check by issuing this command:

nvidia-settings --query all | more

it will display all the options infos, including their attibutes.
alright well running that command indeed shows that GlyphCache is set to 1

I have that and the initialpixmapplacement set in my .xinitrc file as follows:
Code:
sudo nvidia-settings -a InitialPixmapPlacement=2 &
sudo nvidia-settings -a GlyphCache=1 &
sleep 1
sudo nvidia-settings --load-config-only &
will these settings take effect immediately? even if set after the X server is already running?
is there a way to make these settings more permanent? (.nvidia-settings-rc maybe?)

I'm just not sure because I've not really noticed much difference, then again I am using urxvt as my terminal with sub-pixel (and AA) fonts... so the problem may lie in urxvt and not with the nvidia drivers
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Old 03-11-08, 01:58 AM   #170
energyman76b
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Location: Clausthal/Germany
Posts: 1,104
Default Re: Slow AA text rendering in KDE

why sudo?

why not nvidia-settings -a InitialPixmapPlacement=2 -a GlyphCache=1
?

how about loading config first?

and the &? I am not sure that it is really needed.
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Old 03-11-08, 05:06 AM   #171
hyfans
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Posts: 75
Default Re: Slow AA text rendering in KDE

i agree with what #170 said. you don't need sudo stuff.

just nvidia-setting directly, and yes, it will take effect right after that command.


Quote:
Originally Posted by evanlec
alright well running that command indeed shows that GlyphCache is set to 1

I have that and the initialpixmapplacement set in my .xinitrc file as follows:
Code:
sudo nvidia-settings -a InitialPixmapPlacement=2 &
sudo nvidia-settings -a GlyphCache=1 &
sleep 1
sudo nvidia-settings --load-config-only &
will these settings take effect immediately? even if set after the X server is already running?
is there a way to make these settings more permanent? (.nvidia-settings-rc maybe?)

I'm just not sure because I've not really noticed much difference, then again I am using urxvt as my terminal with sub-pixel (and AA) fonts... so the problem may lie in urxvt and not with the nvidia drivers
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Old 03-14-08, 10:50 PM   #172
_john_i_
gtx260/8200M G/DIY Linux
 
Join Date: Aug 2004
Location: Austin, TX USA
Posts: 137
Default Re: Slow AA text rendering in KDE

Quote:
Originally Posted by _john_i_
Even with the GlyphCache and InitialPixmapPlacement settings, scrolling a web site in konqueror on KDE4 is jerky on my 8600GT.
I'm going to retract that statement. Today it seems much better! The jerkiness has gone away, and it is working pretty well. I wonder if it needed time to "cache some glyphs"
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Old 03-14-08, 10:58 PM   #173
txf
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Posts: 272
Default Re: Slow AA text rendering in KDE

Quote:
Originally Posted by _john_i_
I'm going to retract that statement. Today it seems much better! The jerkiness has gone away, and it is working pretty well. I wonder if it needed time to "cache some glyphs"
how about the rest of kde4? How well does it work for you? Window resizing, terminal scrolling, tearing off menu's etc... I'm curious because I find that it generally crawls for me.
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Old 03-16-08, 02:19 PM   #174
_john_i_
gtx260/8200M G/DIY Linux
 
Join Date: Aug 2004
Location: Austin, TX USA
Posts: 137
Default Re: Slow AA text rendering in KDE

Quote:
Originally Posted by txf
how about the rest of kde4? How well does it work for you? Window resizing, terminal scrolling, tearing off menu's etc... I'm curious because I find that it generally crawls for me.
All of these actions are fairly smooth now.
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Old 03-25-08, 03:04 PM   #175
capthookb
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Posts: 22
Default Re: Slow AA text rendering in KDE

I wonder if there are any plans by nvidia in accelerating text AA in legacy drivers as well. I'm using them.

By the way, does anyone know any way to benchmark different fonts? Do you think that different fonts need different resources?
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Old 04-06-08, 08:42 AM   #176
Linuxhippy
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Posts: 585
Default Re: Slow AA text rendering in KDE

Quote:
By the way, does anyone know any way to benchmark different fonts? Do you think that different fonts need different resources?
No, its all pretty much the same. The single glyphs (a single letter of a font rendered) are cached in VRAM, so to the GPU all fonts look the same, they are just small pictures. What the pictures contain is not relevant for accaleration at all.

lg Clemens
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