I can confirm this exact same behaviour. White static on a 1920x1200 resolution, doesn't happen in 1680x1050, 1600x1200 or below. Doesn't happen either on Intrepid + fglrx, or Windows XP. Since I also have the "flickering" bug (sometimes, screen switches off for one second), I tested if the CPU frequency changes anything, but it doesn't. Flickering is not noticeable on a white background, and barely noticeable on a black one. Also, it isn't a heat problem, since it also happens right after a cold boot.
jMax's description of this phenomenon as "static" is quite good. It consists of lines that are always horizontal and seem to be one pixel in width and varying between ~5 to ~50 pixels in length. They are white, although some seem to be reddish. It is a little hard to make out, since they disappear almost instantly. They are not related to any windows or other area of the screen. My Xorg.0.log contains the same warnings as jMax's, but not the error. Hardware + system information: Laptop: Dell Latitude D610 Graphics card: ATI Mobility Radeon X300 128 MB [RV 370] Monitor: VideoSeven D24W33 24" wide screen, 1920x1200, connected via DVI output on the docking station to HDMI input on monitor Ubuntu Version: Jaunty with "radeon" driver Composite: switched off in xfwm4 If you need further information, please ask. ** Attachment added: "lspci.vvnn.log" http://launchpadlibrarian.net/26819840/lspci.vvnn.log -- [RV530] Screen "static noise" using high resolutions https://bugs.launchpad.net/bugs/366651 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
