Logs: liberachat/#xmonad
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| 2026-02-16 12:35:13 | <liskin> | ghormoon: what kind of hardware do you have? have you heard of https://github.com/felixdoerre/primus_vk ? |
| 2026-02-16 12:37:42 | <liskin> | That being said, my setup (dotfiles on github) does have support for running a separate X session on the dGPU and it worked relatively well. But it's been years since I last used it - no point even trying these days as that nvidia is so old it won't run any games anyway. |
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| 2026-02-16 20:20:23 | <ghormoon> | liskin: igpu in i9-13900hx, dgpu 4070, dell g16 7630 (should have mux switch) |
| 2026-02-16 20:21:56 | <ghormoon> | looking on the link, that would work for most of my linux gaming usecases i think ... the performance hit of that instead of mux should be pretty low. but in the end, i'd be kinda insterested if i could much it manually, so i cah also have gaming windows vm and use somo hotkey to mux/demux into it and keep it runinng, but that's way offtopic here :) |
| 2026-02-16 20:24:36 | <ghormoon> | did you use oss or proprietary nvidia drivers? |
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| 2026-02-16 21:46:01 | <liskin> | ghormoon: oh, I see - I never had a laptop with an actual mux so my experience is limited |
| 2026-02-16 21:46:32 | <liskin> | Suppose you could pass the whole dGPU to qemu if there's a hardware mux |
| 2026-02-16 21:47:20 | <liskin> | I used proprietary because that was the only thing that worked back then. Nouveau was useless and there was nothing else |
| 2026-02-16 22:20:42 | <ghormoon> | yeah i tried proprietary and it gets kernel panics every 10min or so even when i use igpu :D just by being loaded :D |
| 2026-02-16 22:21:15 | <ghormoon> | but yeah that's the general idea. the question is, if i'll manage to control the mux somehow to only switch display and not turn off the gpu |
| 2026-02-16 22:21:25 | <ghormoon> | but that's a task for another day |
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| 2026-02-17 01:13:46 | <beastwick> | hello, not sure if this is a bug, but I am simply swapping screens with XMonad.Actions.CycleWS swapNextScreen. On one monitor I have tabbed layout, so multiple windows with tabs at the top. When I swap, the workspaces correctly switch, but the tab bar appears over the other workspace and can only be removed if I restart xmonad in place. |
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| 2026-02-17 01:15:53 | <beastwick> | oh wait, now it isn't happening not sure why |
| 2026-02-17 01:16:04 | <beastwick> | weird |
| 2026-02-17 01:23:11 | <geekosaur> | known bug, some layout modifier you're using isn't passing on the Hide message to Tabbed |
| 2026-02-17 01:23:34 | <beastwick> | oh :(, can I pass it along, or modify the function? |
| 2026-02-17 01:23:36 | <geekosaur> | sadly a lot of layout modifiers don't pass on the Hide or ReleaseResources messages |
| 2026-02-17 01:28:51 | <geekosaur> | you'd have to bisect to find the layout modifier that isn't passing them on and make a local copy of it (in ~/.xmonad/lib/XMonad/Layout/whatever.hs) with the handleMessage logic added (see for example https://github.com/xmonad/xmonad-contrib/pull/813/changes#diff-39a8849b1ce55ed5ed86080ca98a422374c884b9691c05f001aa5baa3d453f6aR89) |
| 2026-02-17 01:29:14 | <beastwick> | thanks, this is what I am going to do |
| 2026-02-17 01:29:20 | <beastwick> | I already have some other modified classes |
| 2026-02-17 01:29:36 | <geekosaur> | if a layout modifier uses the XMonad.Layout.LayoutModifier framework, that already handles them for it |
| 2026-02-17 01:30:33 | <beastwick> | oh so, cyclews swapNextScreen can't ensure this, I have to fix the layout modifier itself? |
| 2026-02-17 01:31:00 | <geekosaur> | (also if you scroll up on that link, you'll find the old version which actually has the bug in question; note that its handleMess deals only with its own message. I should probably fix that before liskin gets around to reviewing the whole thing) |
| 2026-02-17 01:34:14 | <geekosaur> | swapNextScreen itself doesn't process messages, but xmonad sends Hide to the workspace being swapped and then when it's redrawn on its new screen the tabs are recreated |
| 2026-02-17 01:34:26 | <geekosaur> | something in the layout stack isn't passing on Hide to Tabbed |
| 2026-02-17 01:34:40 | <geekosaur> | so the tabs stay where they were drawn on the old screen |
| 2026-02-17 01:35:16 | <geekosaur> | Tabbed itself handles these correctly (well, Decoration handles them for it) but it has to receive them |
| 2026-02-17 01:36:26 | <geekosaur> | so you need to take a look at your layoutHook and in particular any modifiers before the actual layouts; usually these are modifier1 $ modifier 2 $ … $ (layout ||| layout ||| …) |
| 2026-02-17 01:42:11 | <geekosaur> | sorry, it actually sends ReleaseResources so the windows are removed and later recreated |
| 2026-02-17 01:42:30 | <geekosaur> | but generally people don't handle either in layout modifiers 😦 |
| 2026-02-17 01:56:02 | <beastwick> | much thanks, so is it an issue in the library itself, or perhaps something I can pass via my layout modifier hook? |
| 2026-02-17 01:56:24 | <beastwick> | or well, you are saying that tabbed layout might not handle messages? |
| 2026-02-17 02:13:34 | <geekosaur> | you can't pass it via your layoutHook, and Tabbed is already doing the right thing. something *leading to* Tabbed isn't doing the right thing, and you can't just wire around it without losing that layout modifier completely |
| 2026-02-17 02:14:28 | <geekosaur> | you meed to find out which layout modifier is swallowing the message and make a local copy modified to pass the message on, and file an issue about it so we can fix it here (or open a PR with your modified copy) |
| 2026-02-17 02:15:55 | <geekosaur> | https://github.com/xmonad/xmonad-contrib/blob/master/XMonad/Layout/PerScreen.hs#L70-L72 this is a layout modifier that swallows messages instead of passing them on (for which I already have a fix in a PR) |
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| 2026-02-17 02:28:26 | <geekosaur> | one of the things I would really like to do but don't see a good way to do with the way we currently do layout messages is message tracing |
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