Hi! hPutStrLn is needed here to send the current window title to xmobar (you have the current window title displayed in your bottom bar, and that's how it gets it). So removing it from xmprocB will result in no window title being displayed. Can you still unfreeze your system by killing the xmobar? If yes, then which one do you need to kill - top or bottom? Best regards, Platon Pronko On 2021-09-20 23:03, Björn Kessler wrote:

Sorry, back again.

Seems like I celebrated to early. It happened again. But to me it seems as if it was much later then normally. I never understood, what the hPutStrLn is for. Would it be worth a try to remove it from xmprocB too?

With kind regards,

Bjoern

Am Mo., 20. Sept. 2021 um 21:39 Uhr schrieb Björn Kessler < bjoern.lindig@gmail.com>:

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Hey Platon,

this is really great! It seems you've hit the nail to its head. The system runs every test safe and easy. I forgot how comfortable it is to have a reliable system! Seriously! This is just wonderful!

Thank you so much!

Best Bjoern

Am Mo., 20. Sept. 2021 um 19:48 Uhr schrieb Platon Pronko < platon7pronko@gmail.com>:

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Hi!

Just a stab in the dark, but can you try removing `hPutStrLn xmprocT` from ppOutput? I suspect that without StdinReader your top xmobar just never reads its stdin, but Xmonad continues to send it the output until it hits the pipe limit, and after that everything blocks.

Best regards, Platon Pronko

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Hey Platon,

thanks for the hint. Somehow it didn't come to my mind to try that. Actually I was fiddling around a lot on my Xmonad config because I wanted to have both a bar on top and on the bottom of the screen. And as it turns out you where right. If I violently kill xmobar after the issue occurs, everything works fine again.

Hm, so what did I do wrong?

I've created a pastie with my config in case someone is having the time to check it. It would be awesome!

https://pastie.iem.at/view/d4d44ce1 --> xmonad.hs https://pastie.iem.at/view/9374a807 --> xmobar-top.hs https://pastie.iem.at/view/189e5014 --> xmobar-buttom.hs

Best,

Bjoern

Am So., 19. Sept. 2021 um 18:46 Uhr schrieb Platon Pronko < platon7pronko@gmail.com>:

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Hi!

I'm not an expert in this by any means, but I'll try giving some

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in case you haven't explored them already.

Have you looked at the `top` output to see what process is consuming CPU or disk resources? Since you say that only X is affected, then ttys should be available on Ctrl-Alt-F2 (3,4,etc) and you can run top there.

How complex is your Xmonad config? Have you tried removing most customizations and running the simplest config possible?

I doubt that rotated monitor is relevant here, but you can easily check that - just run non-rotated monitor for a while, after the first time it freezes again you will be sure that rotated monitor wasn't the issue.

Best regards, Platon Pronko

On 2021-09-18 14:35, Björn Kessler wrote:

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Hi there,

I'm new to the list and poppin in with a question. But before getting to that, I would like to send out a big "thank you" to the community,

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is

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providing this greatest windowmanager ever! I'm using it since more

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5

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years now and never had an issue...

... up to now: My xmonad is freezing again and again and I don't really know how to figure out what causes the issue. It happens when I use programs like musescore or radium. I don't know, maybe because they

On 2021-09-20 20:32, Björn Kessler wrote: pointers that than put

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heavy load on graphics or something!? Anyway, when it happens, some functionalities of the program stay functional, but changing the screen in xmonad or starting new programms via dmenu is impossible then.

I'm on archlinux and xmonad.errors doesn't show anything, as far as I can see. I'm using xorg and I'm launching it with startx from the command prompt.

In my Xorg.0.log I get the following error:

> [ 6588.014] (EE) event6 - LITE-ON Technology USB NetVista Full Width Keyboard.: client bug: event processing lagging behind by 13ms, your system is too slow

The slowest device in my setup is the harddrive. I now it needs replacement soon. Can it be, that X freezes because of a slow harddrive?

I'm also using a rotated monitor. Can it be that the issue is concerned with the portrait view?

Here is my script that I use to do the rotation > xrandr --output VGA-1 --off --output DP-1 --off --output HDMI-1 --off --output DP-2 --mode 1680x1050 --pos 0x0 --rotate left --output HDMI-2 --off

If someone is having any idea on how to narrow this down, I'd be very thankfull. Even only to figure out whether it is concerned with xmonad or not, would help a lot. I'm suspecting xmonad, because after killing it and restarting X everything works fine again, but I know that by killing xmonad I'm also stopping a whole lot of other processes too...

With kind regards,

Bjroern

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