f6f30065b430ef670e5a163577634941c20f8855 is the first bad commit
commit f6f30065b430ef670e5a163577634941c20f8855
Author: Ville Syrj�l� <ville.syrj...@linux.intel.com>
Date: Thu May 6 17:44:00 2021 +0200
drm/i915: Try to use fast+narrow link on eDP again and fall back to the old
max strategy on failure
BugLink: https://bugs.launchpad.net/bugs/1925685
Some new eDP panels don't like to operate at the max parameters, and
instead we need to go for an optimal confiugration. That unfortunately
doesn't work with older eDP panels which are generally only guaranteed
to work at the max parameters.
To solve these two conflicting requirements let's start with the optimal
setup, and if that fails we start again with the max parameters. The
downside is probably an extra modeset when we switch strategies but
I don't see a good way to avoid that.
For a bit of history we first tried to go for the fast+narrow in
commit 7769db588384 ("drm/i915/dp: optimize eDP 1.4+ link config
fast and narrow"). but that had to be reverted due to regression
on older panels in commit f11cb1c19ad0 ("drm/i915/dp: revert back
to max link rate and lane count on eDP"). So now we try to get
the best of both worlds by using both strategies.
v2: Deal with output_bpp and uapi vs. hw state split
Reword some comments
v3: Rebase
Cc: Jani Nikula <jani.nik...@intel.com>
Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
Cc: Albert Astals Cid <aa...@kde.org> # v5.0 backport
Cc: Emanuele Panigati <ilpan...@gmail.com> # v5.0 backport
Cc: Matteo Iervasi <matteoierv...@gmail.com> # v5.0 backport
Cc: Timo Aaltonen <tjaal...@ubuntu.com>
Cc: Kai-Heng Feng <kai.heng.f...@canonical.com>
Reviewed-by: Manasi Navare <manasi.d.nav...@intel.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=105267
References: https://bugs.freedesktop.org/show_bug.cgi?id=109959
References: https://gitlab.freedesktop.org/drm/intel/issues/272
Signed-off-by: Ville Syrj�l� <ville.syrj...@linux.intel.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/20210107182026.24848-1-ville.syrj...@linux.intel.com
(cherry picked from commit 2bbd6dba84d44219387df051a1c799b7bac46099)
Signed-off-by: Kai-Heng Feng <kai.heng.f...@canonical.com>
Acked-by: Tim Gardner <tim.gard...@canonical.com>
Acked-by: Stefan Bader <stefan.ba...@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.so...@canonical.com>
drivers/gpu/drm/i915/display/intel_display_types.h | 1 +
drivers/gpu/drm/i915/display/intel_dp.c | 75 +++++++++++++++++++---
2 files changed, 67 insertions(+), 9 deletions(-)
** Bug watch added: freedesktop.org Bugzilla #105267
https://bugs.freedesktop.org/show_bug.cgi?id=105267
** Bug watch added: freedesktop.org Bugzilla #109959
https://bugs.freedesktop.org/show_bug.cgi?id=109959
** Bug watch added: gitlab.freedesktop.org/drm/intel/issues #272
https://gitlab.freedesktop.org/drm/intel/issues/272
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1933716
Title:
Black screen on boot after stable update
Status in linux package in Ubuntu:
Confirmed
Bug description:
After kernel update from 5.11.0-18-generic to 5.11.0-22-generic system
boots into black screen.
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: linux-image-5.11.0-18-generic 5.11.0-18.19
ProcVersionSignature: Ubuntu 5.11.0-18.19-generic 5.11.17
Uname: Linux 5.11.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: marcin 1374 F.... pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Jun 26 11:55:00 2021
InstallationDate: Installed on 2021-05-02 (55 days ago)
InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
MachineType: HP HP Pavilion Laptop 15-eg0xxx
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-18-generic
root=UUID=9625a19f-eeea-4a92-ab4b-1549d4950f3b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.11.0-18-generic N/A
linux-backports-modules-5.11.0-18-generic N/A
linux-firmware 1.197
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/17/2021
dmi.bios.release: 15.12
dmi.bios.vendor: Insyde
dmi.bios.version: F.12
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 87CB
dmi.board.vendor: HP
dmi.board.version: 34.27
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 34.27
dmi.modalias:
dmi:bvnInsyde:bvrF.12:bd03/17/2021:br15.12:efr34.27:svnHP:pnHPPavilionLaptop15-eg0xxx:pvrType1ProductConfigId:rvnHP:rn87CB:rvr34.27:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP Pavilion
dmi.product.name: HP Pavilion Laptop 15-eg0xxx
dmi.product.sku: 2Q2T4EA#AKD
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
To manage notifications about this bug go to:
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