From: Ekaitz Zarraga <ekaitz@elenq.tech>
To: "André A. Gomes" <andremegafone@gmail.com>
Cc: Help Guix <help-guix@gnu.org>
Subject: Re: help: screen tearing in guix
Date: Wed, 27 Oct 2021 10:03:26 +0000 [thread overview]
Message-ID: <Dw5M1Ax8IlZlNOB9UaNIuK1xfjY33lkSqGmFj_mWZ-fSV5T-VNqMMbIvNXkz5Fe6w3MLLbOgeHOXG_ZNt_zmVnoGVlcprZvTQTLFrc34OEo=@elenq.tech> (raw)
In-Reply-To: <87ilxmi7k7.fsf@gmail.com>
Hi Andre
> I've noticed that on my laptop's built-in screen there's some kind of
> weird "delay" going on. For instance, the cursor lags behind after
> hitting Space. On my external monitor, there are no issues at all. If
> that matters, the built-in screen native resolution is almost 4K. I've
> tried to play with the ModeLine settings in the past, but I wasn't able
> to solve it.
>
> I'm wondering if this "TearFree" option sounds like it could solve my
> issue. Regardless, I'll give it a try.
In my laptop it didn't resolve tearing totally but it reduced it (I think,
I made the change recently and I was trained to ignore it :S)
> I also took a look at your config, and I noticed the last section
> relative to ModemManager.
>
> I've been playing with DIY keyboards (as you know) and I'm just curious
> why exactly ModemManager interferes with USB devices.
>
> For now I've solved the issue by adding the following udev rule:
>
> --8<---------------cut here---------------start------------->8---
> SUBSYSTEMS=="usb", ATTRS{idVendor}=="1b4f", ATTRS{idProduct}=="9205",
> TAG+="uaccess", ENV{ID_MM_DEVICE_IGNORE}="1"
> --8<---------------cut here---------------end--------------->8---
>
> My understand is that MM from "ID_MM_DEVICE_IGNORE" stands for
> ModemManager. I'd like to get a deeper understanding of what's going
> on. If you can share some pointers, I'd appreciate it.
The modem manager basically tries to know if anything you connected
is a modem so it sends AT commands to the serial devices right when
they are connected. That may interfere with your work.
The udev rule you added id more than enough I think. I'm a radical guy
so I just removed the modem manager service :)
prev parent reply other threads:[~2021-10-27 10:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-22 2:31 help: screen tearing in guix dikasetyaprayogi--- via
2021-10-22 6:16 ` Daniel Meißner
2021-10-22 10:54 ` Julien Lepiller
2021-10-22 14:33 ` dikasetyaprayogi--- via
2021-10-23 20:50 ` Ekaitz Zarraga
2021-10-23 22:18 ` dikasetyaprayogi--- via
2021-10-24 10:48 ` Ekaitz Zarraga
2021-10-24 10:54 ` Pascal Lorenz
2021-10-24 11:00 ` Ekaitz Zarraga
2021-10-24 18:55 ` André A. Gomes
2021-10-24 18:47 ` André A. Gomes
2021-10-27 10:03 ` Ekaitz Zarraga [this message]
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