I have the same problem on natty64 with VGA video projectors. I tested it with two computers with two different drivers (xf86-video-ati, xf86-video-nouveau). I tested it with three different video projector. I tested it with three different VGA cables. I tested it with kernels 2.6.35, 2.6.37, 2.6.38 I tested it with libdrm(i.e. libkms) 2.4.21, 2.4.23 (remark here i didn't reboot)
And it always flickered (with exception 3. projector see below). Remark with two of three projectors I used addmode since the drivers didn't recognize the native resolution of the beamer. Everything always worked well if I used my old Gentoo (2.6.33 - but with KMS,ati and with addmode) With the 3. projector in natty it worked properly because it recognized the native resolution. But if I added an other resolution to it and changed to that it flickered again. so it's possible It has some thing to do with --addmode I think this worked on Maverik but I'm not sure since I didn't use --addmode much Did any of the others here use addmode? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727979 Title: Screen flicker approx. every 30 seconds -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs