First here is some detail on my system:
Asus M2N-MX-SE Plus motherboard with AMD AM2 Athlon64 X2 5200+ and 2 gigs DDR2
ATI HD 3840 video card
Creative X-Fi Xtrememusic sound card
Linux Mint Gloria 7
I've done a few searches on this but have come up empty so I'm hoping someone may be able to shed some light on this for me. Essentially what's happening is that when I installed Gloria I was presented with a resolution that was within my monitors range but far to high for the size of the monitor (in excess of 1280x1024) I opened up the menu and clicked on "Display" to change the resolution and was presented with a blank window and a series of black bands that flickered at the bottom, middle and then top of my monitor in a cycle.
The computer ground to a snails pace at this point so I poppe open the system monitor to check and see if a process had started consuming my CPU, nothing showed as greater than 10% drain on the CPU. I switched to the processors tab and noticed that my cores were performing an interesting cycle. One core would be at rest (around ~3% usage) and the other would be at 100% usage and then they would swap.
I killed the Display panel to alleviate the CPU usage but it didn't help. Eventually the system stabilized again and began running normally, although I was still unable to change the resolution. A couple of times when I've tried to open the display panel I would see a cycle of the black bands and then they would stop and the Display panel would populate and I would be able to change the resolution which either resulted in the black bands coming back or the option to accept and close being presented.
After some searching I've begun to think that the ATI driver that Gloria recommended I download and install, was not the correct one and I've read on here that other users have had success using the EnvyNG program to install the correct driver. I've yet to try this but will do so when I get home from the office and update this thread with the result.
This is not a critical problem as I have learned I can change the resolution manually through the monitors.xml file. What concerns me is how whatever is causing this issue may impact other applications such as video playback or Wine game performance. I have noticed that I cannot enable the desktop effects, while this isn't a problem perse it does seem to be related and does seem to indicate a graphics driver problem.
If anyone has any input or suggestions that might help me figure this out they would be greatly appreciated. If I manage to solve this I will record my steps here for anyone else with a similar issue.
This issue has been resolved by installing the latest AMD/ATI drivers as per the directions on this page --> http://forum.compiz-fusion.org/showthread.php?t=6794
And disabling Randr1.2 as per the instructions on this page --> http://forum.compiz-fusion.org/showthre ... 94&page=79
The specific code in question is
- Code: Select all
sudo aticonfig --set-pcs-str="DDX,EnableRandr12,FALSE"
This alleviated all symptoms and improved all around system performance, including boot time.
I hope this information is useful to someone else.