Zakhar, thank you for reporting this and helping make Ubuntu better.
Please execute the following command only once, as it will automatically gather
debugging information, in a terminal:
apport-collect 1774845
** Package changed: linux-signed (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1774845
Title:
TV-out timeouts in i965 driver (since recent kernels ~4.4)
Status in linux package in Ubuntu:
Incomplete
Bug description:
This is the automated ubuntu-bug linux
as requested per ticket
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682921
From the original bug where I posted (1731784) and the ticket I opened
upstream, this has been identified by Intel engineers as a regression
in the DRI i965 since kernels around 4.4 (where it was working).
The regression produces timeouts (10 seconds) when the graphic driver
looks whether there is a TV out in the hardware. These timeouts are
repeated several times during the boot process, which makes the
machine very sluggish.
Depending on the hardware, there is a simple workaround which is
adding a parameter on the boot command to instruct the graphic driver
not to look at TV-out.
This workaround is perfect as far as I am concerned, because since the
hardware I use does not have TV-out, I am not losing any feature and
the bug is not triggered any more.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-22-generic 4.15.0-22.24
ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
Uname: Linux 4.15.0-22-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.1
Architecture: amd64
Date: Sun Jun 3 09:18:54 2018
InstallationDate: Installed on 2018-05-07 (26 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=fr_FR.UTF-8
SHELL=/bin/bash
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)
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