sebruiz.net » nvidia http://www.sebruiz.net Thu, 09 Jul 2009 14:02:06 +0000 en hourly 1 A Use for NVidia http://www.sebruiz.net/340 http://www.sebruiz.net/340#comments Mon, 21 Jul 2008 08:14:04 +0000 Seb http://www.sebruiz.net/?p=340 The world has seen a significant amount of complaining about NVidia cards (the 8600 has had it’s fair share of whippings).

However, I’ve come to a great realisation:

with my exceptionally slow nvidia card I can see absolutely every draw that occurs on the screen. Great for debugging paint events, and no need to export QT_FLUSH_PAINT=1.

All you devs should go out and get one :)

]]> http://www.sebruiz.net/340/feed 7 nvidia performance problems (again) http://www.sebruiz.net/323 http://www.sebruiz.net/323#comments Mon, 14 Apr 2008 00:48:46 +0000 Seb http://www.sebruiz.net/?p=323 It’s that never ending story once again. Upgrade the video card, suffer extreme performance loss in the desktop:

  1. swap nvidia 7900 card for 8600 (a meager upgrade, but still)
  2. notice the desktop has dramatically slowed down (expected)
  3. recompile the newest nvidia kernel drivers
  4. reboot, and to no avail, no performance increase
  5. repeat steps 3 and 4, each time tweaking something else. xorg.conf, ubuntu restricted drivers etc

DRI is enabled:
seb@hammerhead:~$ glxinfo | grep "direct"
direct rendering: Yes

I know glxgears is no good benchmark, but at least it provides a slight indication to the performance of the card. 5000 fps is a rubbish result. Also, I’d expect to be able to run the desktop with compositing without an problems – which I can’t.

Can anybody provide a fool proof method of fixing this? I’m reaching out for the sake of my sanity!

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