Hello Aaron, Alex, Alex Deucher schreef op 2012-12-21 17:10: > 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 tried stopping the gnome-settings-daemon, and that indeed stopped the unwanted behavior. I thought it was the X server that actually took the display out of the server layout, but that is not the case, as I can see now. I also checked with xrandr: the disconnected display is marked as such, but the total configured resolution does not change. >> I don't know offhand if gnome-settings-daemon has an option to turn off >> automatic reconfiguration of the screens. I have not been able to find such a setting. But I will look further now that I know the behavior results from Gnome itself. >>> 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. Agreed. I'll try to find out how to stop Gnome from reconfiguring my screen layout. > Alex Thank you for your kind and swift responses, Sven _______________________________________________ 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
