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Old 08-11-2008, 03:29 PM
Nick Lidakis
Default Nvidia's Poor 2D performance. Was: Slow video

Ron Johnson wrote:

On 08/11/08 01:01, Nick Lidakis wrote:

Ron Johnson wrote:

On 07/12/08 02:00, Nick Lidakis wrote:

Ron Johnson wrote:

The "inner" scroll region? No sluggishness or slowdown. Noticeable
CPU usage by /usr/bin/X11/X when I rapidly jerk the scroll bar up
and down, but that's normal.

Are ya

the NV or Nvidia driver?

Sorry. The nvidia driver.

I forgot to ask if you were running a high resolution monitor, perhaps
1600x1200 or greater? Are you running any of the 3d accelerated

or regular 2d window manager?

A y2k-vintage Gateway VX1120 (Hitachi Diamondtron flat-screen CRT)
at 1280x1024 with GNOME & Metacity. (I see no reason to waste
resources on eye candy.)

Tonight I tried the sluggish website I mentioned in an earlier post
(http://www.tempus-vivit.net/taverne/thema/935), but at a 1280x1024
resolution. Better, still sluggish, but not the molasses that
1600x1200 was. Dropping down to 1024x768, things were very snappy and
the sluggishness was completely gone.

I'm giving up on the Nvdia cards. Seems I'm not the only one having
serious issues with 2D support with their latest driver series. I'm
glad to say that I on;y paid $12 USD for the Quadro card on eBay.

What color depth?
My card is an air-cooled

*Arrowing* down that page definitely isn't as fast as arrowing down a
Slashdot page, but I'd attribute that to the page's extra complexity and
the page down or grab the slider bar and not think a 2nd thought about it.

While Googling and reading, I found this app:

Here are my results:
$ gtkperf -c 1000
GtkPerf 0.40 - Starting testing: Mon Aug 11 03:26:13 2008

GtkEntry - time: 0.85
GtkComboBox - time: 17.38
GtkComboBoxEntry - time: 16.19
GtkSpinButton - time: 3.29
GtkProgressBar - time: 1.05
GtkToggleButton - time: 6.07
GtkCheckButton - time: 5.89
GtkRadioButton - time: 7.17
GtkTextView - Add text - time: 35.38
GtkTextView - Scroll - time: 21.56
GtkDrawingArea - Lines - time: 4.51
GtkDrawingArea - Circles - time: 5.38
GtkDrawingArea - Text - time: 6.89
GtkDrawingArea - Pixbufs - time: 2.07
Total time: 133.68

Athlon 64 X2 4000+ 2GB RAM
GeForce 7300SE (G72) 128MB, 1280x1024x16

X.org 1:7.3
Nvidia 173.14.05
libgtk2.0-0 2.12.11-3
gnome-core 2.22.2~4
metacity 1:2.22.0-1

Note this screen print from 3.5 years ago. Even factoring in that it
did an order of magnitude fewer test cycles, it still seems faster than
my card.


I picked up a lower end ATI 3650 after doing some reading online.
Didn't realize AMD/ATI were releasing specs to the open source
developers, with Novell even writing drivers on AMD's behalf.

I'm loyal to the company that supported Linux when no other video card
did. But their newer cards just don't seem to do so well under Linux.

There's a good possibility that my next card will be ATI.

Thanks for that link. I downloaded the deb.

ASUS A8n-SLI Premium w/ X2 4800+
2GB Ram
Quadro NVS 285 PCIe 1600x1200
eVga 7800GTX 512 PCIe 1600x1200

Debian Sid
libgtk2.0-0 2.12.11-3
Debian's Nvidia 173.14.09 built w/ module assistant
Xorg 7.3

I normally run 1600x1200 at 24 bit color depth. I ran several tests.

Gtkperf at 1600x1200 and 16 bit color depth:

GtkPerf 0.40 - Starting testing: Mon Aug 11 10:44:47 2008

GtkEntry - time: 0.66
GtkComboBox - time: 15.16
GtkComboBoxEntry - time: 12.89
GtkSpinButton - time: 2.65
GtkProgressBar - time: 1.57
GtkToggleButton - time: 6.21
GtkCheckButton - time: 5.00
GtkRadioButton - time: 6.43
GtkTextView - Add text - time: 24.04
GtkTextView - Scroll - time: 19.70
GtkDrawingArea - Lines - time: 3.62
GtkDrawingArea - Circles - time: 3.07
GtkDrawingArea - Text - time: 5.22
GtkDrawingArea - Pixbufs - time: 3.60
Total time: 109.83

Gtkperf at 1600x1200 and 24 bit color depth:

GtkPerf 0.40 - Starting testing: Mon Aug 11 11:10:52 2008

GtkEntry - time: 0.44
GtkComboBox - time: 14.57
GtkComboBoxEntry - time: 14.14
GtkSpinButton - time: 2.19
GtkProgressBar - time: 1.76
GtkToggleButton - time: 6.07
GtkCheckButton - time: 5.01
GtkRadioButton - time: 6.53
GtkTextView - Add text - time: 24.20
GtkTextView - Scroll - time: 19.43
GtkDrawingArea - Lines - time: 3.74
GtkDrawingArea - Circles - time: 3.26
GtkDrawingArea - Text - time: 4.32
GtkDrawingArea - Pixbufs - time: 3.60
Total time: 109.28

I also had to stop using Xfce-Terminal. Resizing the terminal window
took at least 3-4 seconds and made X slow to a crawl. No such issues on
the the Thinkpad with GMA graphics.

I also tried a fresh install of Debian Sid on a spare hard disk, built
the NVIDIA driver with module assistant, and kept things to a graphical
minimum, i.e, solid colored root window, simple default GTK theme. Same
issues. I even took out the Quadro and put in an older Evga 7800GTX 512
card that I had sitting on a shelf. 2D was actually slightly worse on
this higher end card.

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