On Fri, Dec 21, 2012 at 10:52 AM, Aaron Plattner <aplatt...@nvidia.com> wrote: > On 12/21/12 06:29, Sven Berkvens-Matthijsse wrote: >> >> Hello, >> >> I can't seem to find an answer to my question anywhere on the web. >> Either my use case is weird, or I'm not searching correctly :-) >> >> I have X.org server 1.11.3 running on Ubuntu. I'm using the radeon >> driver with a Radeon HD6450. I have three monitors connected to the card >> (all three monitors have a DVI input), and I've set up the server to >> have all three monitors in one large desktop. This works brilliantly! >> >> Sometimes, I need to connect one of the monitors to another PC or other >> equipment with a HDMI or DVI output. My problem is that if I pull out >> one of the cables that is connected to the HD6450, that the card (and >> the X server) will detect that the monitor has been disconnected from >> the card. Consequently, the desktop size is modified and all my Gnome >> panels will be jumbled. If I reconnect the monitor, it comes back >> online, but the positioning of the windows and panels is not restored to >> what it used to be. > > > It's the X clients' job to effect that sort of policy. In your case, it's > probably gnome-settings-daemon. You could try killing it as an experiment > to see if the behavior goes away, or logging into a simpler desktop > environment like Fluxbox that doesn't have a monitor policy daemon. > > I don't know offhand if gnome-settings-daemon has an option to turn off > automatic reconfiguration of the screens. > > >> What I would like is to be able to tell the X server that I don't care >> whether monitors are disconnected or not, and that it should keep the >> desktop size fixed, no matter which monitors are connected. My X >> configuration file includes a full server layout section, and also >> contains the resolutions of the monitors. Therefor, it should be >> possible, I guess, I just don't know how. Perhaps the current software >> is not able to handle this specific situation. I can live with it if the >> monitors need to be connected at the time that the X server starts. As >> long as I can disconnect them later on without the server layout and >> desktop size changing. > > > The nvidia driver has a "UseHotplugEvents" option you can use to suppress > the RandR events that clients like gnome-settings-daemon listen for, to work > around this sort of problem. Maybe the radeon driver has something similar?
There's no runtime option, but you can disable udev support in the build with the --disable-udev configure option for xf86-video-ati. As Aaron said, it's preferable to disable that behavior in your desktop environment however. Alex _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: arch...@mail-archive.com
