From 48d04ec7bec1079f5025b00dd8cd9873f539af35 Mon Sep 17 00:00:00 2001 From: Kévin Le Gouguec Date: Mon, 9 Nov 2020 13:34:47 +0100 Subject: Note down issues with kernel 5.8 on Dell laptop --- guides/setups/operating-systems/debian.org | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'guides/setups') diff --git a/guides/setups/operating-systems/debian.org b/guides/setups/operating-systems/debian.org index cc7bf0e..dc7f5c5 100644 --- a/guides/setups/operating-systems/debian.org +++ b/guides/setups/operating-systems/debian.org @@ -394,6 +394,36 @@ had left an error marker somewhere?]. Steps taken: (which eventually just writes ~run_im none~ in =~/.xinputrc=). 3. Eventually, maybe I should just uninstall im-config. +**** random lag +***** DONE diagnosing +Since… a few days? weeks? one month? everything randomly becomes +"choppy": + +- typing (Emacs, Terminator, Firefox): I can type in a bunch of words, + sit back, wait a few seconds, then watch the words finally write + themselves letter by letter. +- launching programs: ~while time $aprogram ; do sleep 0.5 ; done~, + where ~aprogram~ just starts then exits, shows wildly varying times. +- scrolling a PDF with the touchpad (Evince): the pages stay stuck for + a few seconds, then the reader jumps to the new location; the mouse + pointer does change during this delay, as text and whitespace + (invisibly) scroll by. + +I can't remember changing anything recently, nor seeing any scary +update passing by. journalctl, htop and dmesg do not show any obvious +suspects. Some things I considered: + +- Disabling some services e.g. tor or speech-dispatcher ⇒ no effect. +- Uninstalling xserver-xorg-video-intel ⇒ no effect. +- Upgrading systemd from backports ⇒ no effect. +- htop sometimes shows pulseaudio acting up despite no application + playing or recording sound? +- Maybe I should try reinstalling Debian's stable kernel? + - Luckily 5.7 was not uninstalled when upgrading to 5.8; booting on + 5.7 solves all of the "choppiness" issues listed above. + +Now to pinpoint what's wrong with 5.8… +***** TODO fixing * Someday ** fix xfce4-terminal opening links with firefox-esr ** fix Thunar opening images with Firefox instead of Ristretto -- cgit v1.2.3