Issue 502 in xmonad: Multihead trouble docs update -- xrandr required for proper display
Status: New Owner: ---- New issue 502 by unpan...@gmail.com: Multihead trouble docs update -- xrandr required for proper display http://code.google.com/p/xmonad/issues/detail?id=502 What steps will reproduce the problem? 1. Clean FreeBSD install. 2. Install the following ports: - x11/hs-X11 - x11/hs-xmonad - x11/xorg-minimal - x11/xterm - x11/nvidia-xconfig - x11/nvidia-settings 3. Configure! - Use a vanilla `defaultConfig` - Use default config from nvidia-xconfig - Set up the second monitor using nvidia-settings, check Xinerama - Start the engines. What is the expected output? What do you see instead? Should see a working multihead xmonad running. The result is one workspace stretched over both monitors. Going through the current troubleshooting FAQ doesn't lead to any answers. You'll get the following output: $ ghc -e Graphics.X11.Xinerama.compiledWithXinerama True $ ghc -e "Graphics.X11.openDisplay [] >>= Graphics.X11.Xinerama.getScreenInfo" [Rectangle {..snip..},Rectangle {..snip..}] It should mention to make sure you've got xrandr installed. I dunno how obvious that is, but it *is* the troubleshooting section! What version of the product are you using? On what operating system? $ uname -a FreeBSD 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan 3 07:46:30 UTC 2012 root@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 $ ghc --version The Glorious Glasgow Haskell Compilation System, version 7.0.4 $ xmonad --version xmonad 0.10 Are you using an xmonad.hs? Please attach it and the output of "xmonad --recompile". main = xmonad defaultConfig{terminal = "/usr/local/bin/xterm"} :P Please provide any additional information below. Might make more sense to just make the xmonad port depend on X11 and xrandr, so they're guaranteed to get pulled in. I'm going to email the maintainer.
Comment #1 on issue 502 by MathStuf@gmail.com: Multihead trouble docs update -- xrandr required for proper display http://code.google.com/p/xmonad/issues/detail?id=502 The X11 package will require Xrandr starting with version 1.6.0 (though the only code above there that expects it is the newest xmobar which is still in git yet and a module I made that is only in darcs; I don't know what might care in xmonad's core). As an aside, since when does the binary nvidia driver support Xrandr?
Comment #2 on issue 502 by unpan...@gmail.com: Multihead trouble docs update -- xrandr required for proper display http://code.google.com/p/xmonad/issues/detail?id=502 I'm honestly not too sure what xrandr does (anything related to X11 scares me; I just need my xterms and web browser) -- but the internet suggests it's been compatible with the nvidia blobs for awhile. Anecdotally, it's been working for at least 9 months. That said, having xrandr *installed* seems to be enough, for some reason. It doesn't appear to be loaded into X11: $ xrandr RandR extension missing :|
Comment #3 on issue 502 by MathStuf@gmail.com: Multihead trouble docs update -- xrandr required for proper display http://code.google.com/p/xmonad/issues/detail?id=502 "randr" is a contraction of "Resize and Rotate" which allows you to switch up your monitor configuration at runtime (it's outside drivers so that every driver doesn't need something like the nvidia-settings GUI). This link[1] might be of interest to you. The driver is probably seeing one screen after the driver maps the two displays together. Does your nvidia card have two GPUs? There also seems to be indications that the nvidia driver might act weird when Xinerama and Xrandr are enabled. [1]https://wiki.archlinux.org/index.php/NVIDIA#Enable_screen_rotation_through_X...
Comment #4 on issue 502 by unpan...@gmail.com: Multihead trouble docs update -- xrandr required for proper display http://code.google.com/p/xmonad/issues/detail?id=502 Nah, it's a single-GPU GTX 560 Ti. I have Xinerama enabled in my xorg.conf, but not Xrandr. It seems just having it installed is enough to make the configuration work; that's enough to make me happy. I just wanted to post my troubles/solution somewhere (and maybe get them into the official troubleshooting docs) to save the next guy a few hours :)
Comment #5 on issue 502 by MathStuf@gmail.com: Multihead trouble docs update -- xrandr required for proper display http://code.google.com/p/xmonad/issues/detail?id=502 Ah, this might also be worth it to put on the wiki then.
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