Gutsy Upgrade causing extremely slow screen draw in X

[jeremyrain]

I upgraded last night with a:

# sudo update-manager -d

The upgrade went though without too much trouble. There were several configuration files that I had customized that needed to be replaced, which was expected. I replaced them all.

Now the problem is screen draw seems to be extremely slow. typing this post I can literally type out two or three sentences and have to wait to watch them slowly crawl out all the letters I typed in. Worse is that web pages seem to draw a LOT slower than in feisty. Also, when applications start, they take longer to start and they leave expanding outlines behind on the screen until the application is fully running.

I checked the xorg.conf and it hasn't changed. did the version of X change? perhaps the XGL is different somehow? Everything else in Gutsy seems nice, and I've already noticed some major nags that are fixed. But this slow screen-draw is so annoying that I will be forced to revert as typing out anything takes tooo long.

I'm running this on an HP Pavilion zv5000, with a Radeon Mobility 9100. I've gotten Beryl and Compiz to work just fine on this machine in the past. this slowness does not make sense based on the hardware I have .

[rmx.dave]

I am having the same exact problem. Mine doesnt seem as slow as yours, letters are keeping up with my typing of this post, but dragging windows and doing anything at all its VERY slow. Also, if I open the appearance window, system monitor tells me that its using 4 GIGS OF MEMORY! I don't think thats right since I only have 1.5 but something is definitely wrong.

Sony Vaio FJ170 laptop with i810 driver.

[RAOF]

Neither of you need to be using Xgl to get Compiz working - the old Radeons and all Intel cards have good, open source drivers that provide all the gegaws that Compiz needs to run.

You're right, Xgl has some strange performance problems on Intel and older ATI. I'm not sure why. Thankfully it doesn't matter too much; you can just uninstall Xgl (or create a file named ~/.config/xserver-xgl/disable if you don't want to uninstall it)

[BungaMan]

If that doesn't help then also check your cpu speed. There is a bug in the kernel so that there is no cpu scaling for the Pentium M sonoma edition. This makes the cpu run at the lowest speed.

I had both problems and each fix made X go faster.