Comment 1 for bug 295593

More about this bug:

http://www.nvnews.net/vbulletin/showthread.php?t=118479

Resume:

I recently switched from the stable driver (173.14.12) to 177.68, applied the tweads in the sticky thread to my xorg.conf, and performance in general improved a lot. Smoother scoll in firefox, my X server not completely hanging for some seconds every time firefox tries to load an image, etc.

However, performance in terminal applications seems to be worse. With the stable driver, sometimes performance when scrolling in konsole or when using emacs in a terminal, was awful, but for some reason after executing "nvidia-settings -g" it got fixed for some time, maybe two hours as average, so I ended up having a loop in background calling nvidia-settings -g every 30 minutes. Powermizer was always in mode 2 (maximum performance), before and after executing nvidia-settings -g.

With this beta driver, performance in the terminal seems to be always bad, and it doesn't improve executing nvidia-settings -g. Furthermore, sometimes serious glitches appear when scrolling in less or emacs, as some lines don't get refreshed as expected, ending up with an awful mix of old and new lines. In the stable driver usually scrolling down was ok, but scrolling up didn't refresh the last line of the output, sometimes the last two or three lines. Sometimes, there were lines in the middle not being refreshed, but resetting the terminal seemed to fix the issue. Now it's usually worse.

This happened in the stable driver but less frecuently, and always happened in opera 9.52 when scrolling on any long website (well, I just tried to reproduce it with the beta driver and it seems much better, but scrolling is not as smooth as in firefox)

It may be related to the refresh problem that appears in firefox when loading an image: if you're loading an image and its bigger than the firefox window, it'll be resized to fit the window, but with the latest driver, every time you load a resized image it'll appear almost black (see: http://img28.picoodle.com/data/img28...gm_d33afc7.png). When you click on the image to get the full size, it shows ok, and if you click to resize it again it's still fine. This only happens if you have focused the tab of the image while the image is loading. If you wait for it to load in a background tab, when switching to the image tab the image will appear fine right away.

Scrolling in xterm was and keeps being perfect.