I have the same problem. I have a Radeon 3850. One 19' 1440x900 LCD, and one 19' 1152x864 CRT. The GNOME panels are on the LCD, so I suppose that's the primary. I started with the ati driver, which works perfectly. Using the Preferences --> Display applet, I de-mirrored the displays, and set the above resolutions. I then switched to fglrx using Jockey. The resolutions carried over.
With fglrx active: GDM is mirrored. While loading into GNOME, the loading process takes quite a bit longer that when using the ati driver, and the CRT flickers repeatedly. As soon as the panels load, the flickering stops, and the panel contents then load quite quickly. When I start the Display applet, I run into the same flicker+slow X+grey square problem as above. The only way out of the situation is to log out, which takes a while, as the panels are fairly unresponsive. I also get the flickering when just loading up Totem, but strangely, not Banshee. When playing videos, the audio is fine, but the video is quite choppy. I've tried opengl overlay with video overlay off, and I've also tried opengl on + textured video on. I've tried adding these options with both aticonfig, and just manually, with gedit. I don't know if this is relevant, but with fglrx and compiz active, windows maximize across both monitors, rather than just one. Also, maximizing takes about 2 seconds. Minimizing is a fraction of a second, as usual. With fglrx active, glxinfo reports direct rendering active, and glxgears gets ~10000 fps. I've switched back to the ati driver, because a working desktop is more important to me than a pretty one :), but I'm happy to switch back to try things out, if anyone has any ideas, or wants more information. I'll be keeping an eye on this page. Thanks for your time, Ryder -- Xorg high processor usage and flickering screen with fglx/dual screens https://bugs.launchpad.net/bugs/365311 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
