You are welcome, any reason why you did the Kernel upgrade? Also what IGP are you using btw?
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Has anyone tried this on an Intel D945GCLF board? I had already updated to the latest stable Xorg drivers when I came across this guide. I don't think that would have had any bearing on the problems I ran across but I figured I'd mention it.
I added the lines to my xorg.conf and did the workaround for the MTRR bug. I did a warm boot and made it to the greeter. After entering my login info the screen flickered a bit then I was back to the greeter. Another login attempt yielded the same result. So I logged in via a terminal and commented out the first of the new lines in xorg.conf. After that I was able to login successfully. I then started up FF and Deluge then left the machine otherwise idle for about an hour.
When I returned to the machine to do some troubleshooting, I noticed that the screen was intermittently 'fuzzy' after a few minutes of activity. Then the NB fan started spinning faster than I had ever heard it before. I disabled all the xorg.conf changes then restarted X, but the fuzziness remained. So I removed the MTRR workaround and did a warm boot. The fuzziness was still there after a restart, but eventually went away. My best guess is that the NB/VPU was starting to overheat.
If anything, the MTRR workaround should reduce CPU usage (and therefore heat). It's likely that UXA acceleration was causing problems for your chipset. Keep the AccelMethod to exa, but keep the other tweaks, as they will most likely improve EXA performance.
You can monitor your temperatures with sensors-applet, if you wish to test your hypothesis.
I have D945GCLF, using xorg-edgers ppa and kde 4.2.3
Works actually very good if u have <10 windows.Code:Section "Device"
Identifier "Configured Video Device"
Option "AccelMethod" "exa"
Option "EXAOptimizeMigration" "true"
Option "MigrationHeuristic" "greedy"
Option "Tiling" "true"
EndSection
I hope performance will increase much more otherwise this motherboard is going to be used for network storage and video surveilance. :p
Im not saying that performance is bad though, because i personally started to track performance of xorg-edgers about 1.5 months ago and it improved about 3x no more glitches and lockups. There is some text corruption though i dont know why. This was tested on GMA 950 and X3100. (X3100 and KDE 4.2.3 wow even on 1680x1050)
i upgraded because i think its good thing having the last stable kernel and also i did it to have better 3d operation (my only problem) and the xorg version is 1:7.4~5ubuntu18 and if for IGP u intend which hardware i use , is Intel Graphics media Accelerator X3100 thanks again
The performance of the Intel drivers also depend on the kernel version you're using (due to the kernel-side drm/i915 changes). For my hardware, the stable 2.6.29.3 works best at the moment.
Also, note that the xorg-edgers drivers aren't necessarily the fastest (hint: I gave the "Optimal" configuration its name for a reason).
People who are experiencing freezes and hard-boots can try this method so that data loss is minimal.
Start with the Ctrl + SysRq + R key combo. Wait a few seconds and press the Ctrl + SysRq + E key combo. Continue with the remaining I , S , U and B keys making sure to wait a few seconds between each key combo. These key combinations stand for:
Raw (take control of keyboard back from X)
tErminate (send SIGTERM to all processes, terminate gracefully)
kIll (send SIGKILL to all processes, terminate immediately)
Sync (flush data to disk)
Unmount (remount all filesystems read-only)
reBoot
(taken from http://tazbuntu.blogspot.com/2008/05...sysrq-key.html)