How do I figure out how what acceleration method is currently being used? Is there some kind of command I can issue? I just want to be able to make sure I have my xorg options set correctly
Looking at /var/log/Xorg.0.log might give some clues about that, too.
Latest intel driver in arch linux has sna support (if you do the xorg.conf change), so I enabled it on my ironlake machine to test. Can't say I've noticed much difference in real world usage yet, but it didn't break anything either so I guess there's that
Does anyone know what kind of "real world" usage would show sna's improvements?
Last edited by bwat47; 07-31-2012 at 06:31 PM.
Well SNA enabled triggers more often the xserver crash with debian wheezy when kde 4 effects are turned off/on. As i still need that to get teerfree video i would like to know what patches are needed for the xserver - best force em to be added to the debian wheezy xserver...
Ok, I definitely notice firefox seems a lot snappier with sna enabled
So for the first time after a long while, I used my Ironlake machine full-time today. And I had this weird feeling all the time as if the display is out of focus. In trying to figure it out, I switched from SNA back to UXA. And what do you know, the feeling was gone immediately. So I took some screenshots.
Here a toolbar button with UXA:
The same toolbar button with SNA:
Note in particular the right edge. You might think that the difference is very small, but it's enough to give me the weird feeling.
Versions of relevant packages are xf86-video-intel-2.20.3, cairo-1.12.2, gtk2-2.24.11, the theme being rendered is Clearlooks. Such a tiny thing, but you know what, I'll stick with UXA for the time being. I'm very sensitive to such things. For example, I use the lcdlegacy freetype filter for fonts, because what the lcddefault filter renders is way too blurry for my eyes.