November 2018 - xmonad

Re: [xmonad] Suspend Keybinding Temporarily
by Brandon Allbery 03 Dec '18

03 Dec '18

Er. What version of ghc? That sounds like either a ghc runtime bug, or a system configuration issue. In particular, xmonad creates no threads itself, so that would be the ghc runtime's IO manager thread. On Fri, Nov 30, 2018 at 3:07 PM Dmitriy Matrosov <sgf.dma(a)gmail.com> wrote: > On 11/30/2018 12:11 AM, Brandon Allbery wrote: > > Yes. More specifically, it's ultimately using the execve() syscall, via > > one of the wrappers which propagates the environment (which one depends > > on whether it's asked to do $PATH search or not). > > So.. here is version using environment: > > import XMonad > import XMonad.Operations > import XMonad.Util.EZConfig > > import System.Environment > import Control.Exception > > main :: IO () > main = do > let xcf = def > { modMask = mod4Mask > , handleExtraArgs = disableKeysE > } > `additionalKeys` > [ ((mod4Mask, xK_d), disableKeysOn) ] > xmonad xcf > > disableKeysOn :: X () > disableKeysOn = do > trace "Preparing to disable keys and restarting.." > io $ setEnv "XMONAD_DISABLE_KEYS" "1" > restart "xmonad" True > > disableKeysE :: [String] -> XConfig Layout -> IO (XConfig Layout) > disableKeysE _ xcf = do > me <- lookupEnv "XMONAD_DISABLE_KEYS" > case me of > Just _ -> do > trace "Disabling all keys." > unsetEnv "XMONAD_DISABLE_KEYS" > return (xcf {keys = \_ -> mempty}) > Nothing -> return xcf > > It also restarts xmonad on key press (when disabling keys) and all > works fine, but.. xmonad frequently crashes with > > xmonad: failed to create OS thread: Resource temporarily > unavailable > > I don't think this crash relates somehow to using environment, and it > happened from time to time before too, but still.. Can you advise, > how to fix it? > > > On Thu, Nov 29, 2018 at 4:07 PM Dmitriy Matrosov <sgf.dma(a)gmail.com > > <mailto:sgf.dma@gmail.com>> wrote: > > > > On 11/29/2018 09:50 PM, Brandon Allbery wrote: > > > You were talking about restart, between the running xmonad and > its > > > replacement via executeFile. There, you can use the environment. > > There > > > is no way to pass information between an invoked "xmonad > > --restart" and > > > the running xmonad. > > > > You mean, `executeFile` preserves environment? So, i may change > it from > > running xmonad (by e.g. keybinding) and then restart it? > > > > > On Thu, Nov 29, 2018 at 6:01 AM Dmitriy Matrosov > > <sgf.dma(a)gmail.com <mailto:sgf.dma@gmail.com> > > > <mailto:sgf.dma@gmail.com <mailto:sgf.dma@gmail.com>>> wrote: > > > > > > > > > > > > On November 28, 2018 9:25:00 PM GMT+03:00, Brandon Allbery > > > <allbery.b(a)gmail.com <mailto:allbery.b@gmail.com> > > <mailto:allbery.b@gmail.com <mailto:allbery.b@gmail.com>>> wrote: > > > >Not by default; there's already a bug ( > > > >https://github.com/xmonad/xmonad/issues/78) about our not > > obeying the > > > >ICCCM > > > >replace protocol unless started by replacing some other WM. > > > > > > > >There's a few other places you can hide extra parameters; > > starting > > > that > > > >early, the environment is probably the easiest to use, > provided > > > they're > > > >not > > > >too large (see why there's a state file now). > > > > > > Hm, i don't understand how to use environment. I need to pass > > > something to running xmonad process (to which i send > > > XMONAD_RESTART). As far as i know, i can't change > environment of > > > another process.. > > > > > > > > > >On Wed, Nov 28, 2018 at 1:20 PM Dmitriy Matrosov > > > <sgf.dma(a)gmail.com <mailto:sgf.dma@gmail.com> > > <mailto:sgf.dma@gmail.com <mailto:sgf.dma@gmail.com>>> > > > >wrote: > > > > > > > >> Hi. > > > >> > > > >> On 11/21/2018 09:49 PM, Eyal Erez wrote: > > > >> > Hi, > > > >> > > > > >> > I'm getting some collisions between my xmonad > > keybindings and an > > > >> > application I'm running (it's a game that is suppose to > > run full > > > >screen > > > >> > but in reality just uses a large window). I was > > wondering if I > > > >could > > > >> > suspend or change some keybindings from a script that I > > can run > > > >before > > > >> > the app launches and then restore later. > > > >> > > > > >> > Is this at all possible? Happy to entertain other > options. > > > >> > > > >> Here is proof of concept: > > > >> > > > >> > > > >> import XMonad > > > >> import XMonad.Hooks.EwmhDesktops > > > >> > > > >> import System.Directory > > > >> import System.FilePath > > > >> > > > >> > > > >> main :: IO () > > > >> main = do > > > >> let xcf = ewmh $ def > > > >> { modMask = mod4Mask > > > >> , handleExtraArgs = > disableKeys > > > >> } > > > >> xmonad xcf > > > >> > > > >> disableKeys :: [String] -> XConfig Layout -> IO > > (XConfig > > > >Layout) > > > >> disableKeys _ xcf = do > > > >> xd <- getXMonadDir > > > >> let disableFn = xd </> "disable_keys" > > > >> b <- doesFileExist disableFn > > > >> if b > > > >> then do > > > >> trace "Disabling all keys." > > > >> removeFile disableFn > > > >> return (xcf {keys = \_ -> mempty}) > > > >> else return xcf > > > >> > > > >> > > > >> To disable all keys create file `~/.xmonad/disable_keys` > > and then > > > >> restart xmonad with `xmonad --restart`. All keys will be > > disabled > > > >> _and_ file deleted (to avoid locking yourself), thus next > > restart > > > >will > > > >> restore all keys back. > > > >> > > > >> As far as i understand, xmonad grabs keys in > > `X.Main.launch` before > > > >> entering main loop. Thus, the one way to change key grab > > is to > > > >restart > > > >> xmonad. I need to modify `XConfig` before calling > > > X.Main.launch`, and > > > >> this may be done by `handleExtraArgs` (called in > `launch'` in > > > >> `X.Main.xmonad`). Unfortunately, it seems, that xmonad > > does not > > > allow > > > >> to pass extra cmd arguments during restart > > (`X.Operations.restart` > > > >> always starts xmonad with name `xmonad` and no > > arguments). Also, i > > > >> can't use extensible state in `handleExtraArgs`, because > > it runs in > > > >> `IO` (`X` context is not yet built at that time). Thus, > > to pass > > > >> something to it, i may use either file or (probably) > > > `--replace`. The > > > >> above version uses file. And i have no luck with > > `--replace`: it > > > >> seems, `xmonad` can't replace itself?.. > > > >> _______________________________________________ > > > >> xmonad mailing list > > > >> xmonad(a)haskell.org <mailto:xmonad@haskell.org> > > <mailto:xmonad@haskell.org <mailto:xmonad@haskell.org>> > > > >> http://mail.haskell.org/cgi-bin/mailman/listinfo/xmonad > > > >> > > > _______________________________________________ > > > xmonad mailing list > > > xmonad(a)haskell.org <mailto:xmonad@haskell.org> > > <mailto:xmonad@haskell.org <mailto:xmonad@haskell.org>> > > > http://mail.haskell.org/cgi-bin/mailman/listinfo/xmonad > > > > > > > > > > > > -- > > > brandon s allbery kf8nh > > > allbery.b(a)gmail.com <mailto:allbery.b@gmail.com> > > <mailto:allbery.b@gmail.com <mailto:allbery.b@gmail.com>> > > > > _______________________________________________ > > xmonad mailing list > > xmonad(a)haskell.org <mailto:xmonad@haskell.org> > > http://mail.haskell.org/cgi-bin/mailman/listinfo/xmonad > > > > > > > > -- > > brandon s allbery kf8nh > > allbery.b(a)gmail.com <mailto:allbery.b@gmail.com> > > -- brandon s allbery kf8nh allbery.b(a)gmail.com

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Fwd: Re: Suspend Keybinding Temporarily
by Dmitriy Matrosov 30 Nov '18

30 Nov '18

Sorry, i've sent mail privately instead of sending it to the list. -------- Forwarded Message -------- Subject: Re: [xmonad] Suspend Keybinding Temporarily Date: Fri, 30 Nov 2018 23:07:01 +0300 From: Dmitriy Matrosov <sgf.dma(a)gmail.com> To: Brandon Allbery <allbery.b(a)gmail.com> On 11/30/2018 12:11 AM, Brandon Allbery wrote: > Yes. More specifically, it's ultimately using the execve() syscall, via > one of the wrappers which propagates the environment (which one depends > on whether it's asked to do $PATH search or not). So.. here is version using environment: import XMonad import XMonad.Operations import XMonad.Util.EZConfig import System.Environment import Control.Exception main :: IO () main = do let xcf = def { modMask = mod4Mask , handleExtraArgs = disableKeysE } `additionalKeys` [ ((mod4Mask, xK_d), disableKeysOn) ] xmonad xcf disableKeysOn :: X () disableKeysOn = do trace "Preparing to disable keys and restarting.." io $ setEnv "XMONAD_DISABLE_KEYS" "1" restart "xmonad" True disableKeysE :: [String] -> XConfig Layout -> IO (XConfig Layout) disableKeysE _ xcf = do me <- lookupEnv "XMONAD_DISABLE_KEYS" case me of Just _ -> do trace "Disabling all keys." unsetEnv "XMONAD_DISABLE_KEYS" return (xcf {keys = \_ -> mempty}) Nothing -> return xcf It also restarts xmonad on key press (when disabling keys) and all works fine, but.. xmonad frequently crashes with xmonad: failed to create OS thread: Resource temporarily unavailable I don't think this crash relates somehow to using environment, and it happened from time to time before too, but still.. Can you advise, how to fix it? > On Thu, Nov 29, 2018 at 4:07 PM Dmitriy Matrosov <sgf.dma(a)gmail.com > <mailto:sgf.dma@gmail.com>> wrote: > > On 11/29/2018 09:50 PM, Brandon Allbery wrote: > > You were talking about restart, between the running xmonad and its > > replacement via executeFile. There, you can use the environment. > There > > is no way to pass information between an invoked "xmonad > --restart" and > > the running xmonad. > > You mean, `executeFile` preserves environment? So, i may change it from > running xmonad (by e.g. keybinding) and then restart it? > > > On Thu, Nov 29, 2018 at 6:01 AM Dmitriy Matrosov > <sgf.dma(a)gmail.com <mailto:sgf.dma@gmail.com> > > <mailto:sgf.dma@gmail.com <mailto:sgf.dma@gmail.com>>> wrote: > > > > > > > > On November 28, 2018 9:25:00 PM GMT+03:00, Brandon Allbery > > <allbery.b(a)gmail.com <mailto:allbery.b@gmail.com> > <mailto:allbery.b@gmail.com <mailto:allbery.b@gmail.com>>> wrote: > > >Not by default; there's already a bug ( > > >https://github.com/xmonad/xmonad/issues/78) about our not > obeying the > > >ICCCM > > >replace protocol unless started by replacing some other WM. > > > > > >There's a few other places you can hide extra parameters; > starting > > that > > >early, the environment is probably the easiest to use, provided > > they're > > >not > > >too large (see why there's a state file now). > > > > Hm, i don't understand how to use environment. I need to pass > > something to running xmonad process (to which i send > > XMONAD_RESTART). As far as i know, i can't change environment of > > another process.. > > > > > > >On Wed, Nov 28, 2018 at 1:20 PM Dmitriy Matrosov > > <sgf.dma(a)gmail.com <mailto:sgf.dma@gmail.com> > <mailto:sgf.dma@gmail.com <mailto:sgf.dma@gmail.com>>> > > >wrote: > > > > > >> Hi. > > >> > > >> On 11/21/2018 09:49 PM, Eyal Erez wrote: > > >> > Hi, > > >> > > > >> > I'm getting some collisions between my xmonad > keybindings and an > > >> > application I'm running (it's a game that is suppose to > run full > > >screen > > >> > but in reality just uses a large window). I was > wondering if I > > >could > > >> > suspend or change some keybindings from a script that I > can run > > >before > > >> > the app launches and then restore later. > > >> > > > >> > Is this at all possible? Happy to entertain other options. > > >> > > >> Here is proof of concept: > > >> > > >> > > >> import XMonad > > >> import XMonad.Hooks.EwmhDesktops > > >> > > >> import System.Directory > > >> import System.FilePath > > >> > > >> > > >> main :: IO () > > >> main = do > > >> let xcf = ewmh $ def > > >> { modMask = mod4Mask > > >> , handleExtraArgs = disableKeys > > >> } > > >> xmonad xcf > > >> > > >> disableKeys :: [String] -> XConfig Layout -> IO > (XConfig > > >Layout) > > >> disableKeys _ xcf = do > > >> xd <- getXMonadDir > > >> let disableFn = xd </> "disable_keys" > > >> b <- doesFileExist disableFn > > >> if b > > >> then do > > >> trace "Disabling all keys." > > >> removeFile disableFn > > >> return (xcf {keys = \_ -> mempty}) > > >> else return xcf > > >> > > >> > > >> To disable all keys create file `~/.xmonad/disable_keys` > and then > > >> restart xmonad with `xmonad --restart`. All keys will be > disabled > > >> _and_ file deleted (to avoid locking yourself), thus next > restart > > >will > > >> restore all keys back. > > >> > > >> As far as i understand, xmonad grabs keys in > `X.Main.launch` before > > >> entering main loop. Thus, the one way to change key grab > is to > > >restart > > >> xmonad. I need to modify `XConfig` before calling > > X.Main.launch`, and > > >> this may be done by `handleExtraArgs` (called in `launch'` in > > >> `X.Main.xmonad`). Unfortunately, it seems, that xmonad > does not > > allow > > >> to pass extra cmd arguments during restart > (`X.Operations.restart` > > >> always starts xmonad with name `xmonad` and no > arguments). Also, i > > >> can't use extensible state in `handleExtraArgs`, because > it runs in > > >> `IO` (`X` context is not yet built at that time). Thus, > to pass > > >> something to it, i may use either file or (probably) > > `--replace`. The > > >> above version uses file. And i have no luck with > `--replace`: it > > >> seems, `xmonad` can't replace itself?.. > > >> _______________________________________________ > > >> xmonad mailing list > > >> xmonad(a)haskell.org <mailto:xmonad@haskell.org> > <mailto:xmonad@haskell.org <mailto:xmonad@haskell.org>> > > >> http://mail.haskell.org/cgi-bin/mailman/listinfo/xmonad > > >> > > _______________________________________________ > > xmonad mailing list > > xmonad(a)haskell.org <mailto:xmonad@haskell.org> > <mailto:xmonad@haskell.org <mailto:xmonad@haskell.org>> > > http://mail.haskell.org/cgi-bin/mailman/listinfo/xmonad > > > > > > > > -- > > brandon s allbery kf8nh > > allbery.b(a)gmail.com <mailto:allbery.b@gmail.com> > <mailto:allbery.b@gmail.com <mailto:allbery.b@gmail.com>> > > _______________________________________________ > xmonad mailing list > xmonad(a)haskell.org <mailto:xmonad@haskell.org> > http://mail.haskell.org/cgi-bin/mailman/listinfo/xmonad > > > > -- > brandon s allbery kf8nh > allbery.b(a)gmail.com <mailto:allbery.b@gmail.com>

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Suspend Keybinding Temporarily
by Eyal Erez 29 Nov '18

29 Nov '18

Hi, I'm getting some collisions between my xmonad keybindings and an application I'm running (it's a game that is suppose to run full screen but in reality just uses a large window). I was wondering if I could suspend or change some keybindings from a script that I can run before the app launches and then restore later. Is this at all possible? Happy to entertain other options. -- *Eyal Erez <**oneself(a)gmail.com* <oneself(a)gmail.com>*>* There are 10 types of people, those who know binary and those who don't.

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Shift Spotify to the right workspace
by Eyal Erez 27 Nov '18

27 Nov '18

Hi, I have a workspace called "music" and I'm trying to shift the Spotify linux client there. I put this as part of my manage hook, but it doesn't seem to work. Spotify starts up in whatever workspace I happen to be (this works fine for many other apps). , className =? "Spotify" --> doShift "music" , className =? "spotify" --> doShift "music" , title =? "spotify" --> doShift "music" Looking at xprop, I see the following: _NET_WM_ICON(CARDINAL) = WM_CLASS(STRING) = "spotify", "Spotify" WM_NAME(STRING) = "Spotify" _NET_WM_NAME(UTF8_STRING) = "Spotify" _NET_WM_DESKTOP(CARDINAL) = 2 WM_STATE(WM_STATE): window state: Normal icon window: 0x0 XdndProxy(WINDOW): window id # 0x4c00002 WM_NORMAL_HINTS(WM_SIZE_HINTS): program specified location: 0, 0 window gravity: Static _NET_WM_PID(CARDINAL) = 8317 WM_LOCALE_NAME(STRING) = "en_US.UTF-8" WM_CLIENT_MACHINE(STRING) = "eyal" WM_PROTOCOLS(ATOM): protocols WM_DELETE_WINDOW, _NET_WM_PING Is Spotify not setting something right or not at the right time? -- *Eyal Erez <**oneself(a)gmail.com* <oneself(a)gmail.com>*>* There are 10 types of people, those who know binary and those who don't.

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Can't lock screen with light-locker-command
by Thomas Järvstrand 24 Nov '18

24 Nov '18

Hi! I just moved back to xmonad after having used qtile for a few years and I'm having trouble locking my screen using light-locker-command. When calling "light-locker-command -l" from the command line, I get the this back: "Received error message from the locker: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.ScreenSaver was not provided by any .service files" I'm running Ubuntu's mini.iso, lightdm, and a simple session file that just calls /etc/X11/Xsession. My .xsession only adds "~/.cabal/bin" to the PATH and execs xmonad. xmonad version is 0.15 but I get the same behaviour when installing xmonad via apt and running the package's session. I have tried purging and reinstalling both lightdm and light-locker. The curious thing is that the same lock command works fine if I run qtile from my .xsession instead of xmonad. Any pointers would be greatly appreciated! Thanks! Thomas

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