Public bug reported:
System can show image in HDMI output during bootup. I don't know which
mode it is using during bootup. Anyway it can not show image in
1920x1080 mode when using the GUI. I am using Xubuntu 20.04. In my
system HDMI is just a Displayport connector with an adapter. xrandr
lists the video modes of the connected HDMI monitor, and it does not
show any error message or non-zero exit status when I enable 1920x1080
mode in the HDMI output; thereafter xrandr shows the mode is currently
used in the HDMI output, but my monitor/TV does not show such a video
mode. It can still work in 1920x1080i and lower resolution modes.
The bug occurs with linux-image-5.15.0-67-generic but not with linux-
image-5.15.0-60-generic.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.15.0-67-generic 5.15.0-67.74~20.04.1
ProcVersionSignature: Ubuntu 5.15.0-67.74~20.04.1-generic 5.15.85
Uname: Linux 5.15.0-67-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.25
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
Date: Wed Mar 8 07:51:31 2023
InstallationDate: Installed on 2019-12-05 (1188 days ago)
InstallationMedia: Xubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
SourcePackage: linux-signed-hwe-5.15
UpgradeStatus: Upgraded to focal on 2020-07-10 (970 days ago)
** Affects: linux-signed-hwe-5.15 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-signed-hwe-5.15 in Ubuntu.
https://bugs.launchpad.net/bugs/2009672
Title:
Unable to show 1920x1080 mode in HDMI output
Status in linux-signed-hwe-5.15 package in Ubuntu:
New
Bug description:
System can show image in HDMI output during bootup. I don't know which
mode it is using during bootup. Anyway it can not show image in
1920x1080 mode when using the GUI. I am using Xubuntu 20.04. In my
system HDMI is just a Displayport connector with an adapter. xrandr
lists the video modes of the connected HDMI monitor, and it does not
show any error message or non-zero exit status when I enable 1920x1080
mode in the HDMI output; thereafter xrandr shows the mode is currently
used in the HDMI output, but my monitor/TV does not show such a video
mode. It can still work in 1920x1080i and lower resolution modes.
The bug occurs with linux-image-5.15.0-67-generic but not with linux-
image-5.15.0-60-generic.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.15.0-67-generic 5.15.0-67.74~20.04.1
ProcVersionSignature: Ubuntu 5.15.0-67.74~20.04.1-generic 5.15.85
Uname: Linux 5.15.0-67-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.25
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
Date: Wed Mar 8 07:51:31 2023
InstallationDate: Installed on 2019-12-05 (1188 days ago)
InstallationMedia: Xubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
SourcePackage: linux-signed-hwe-5.15
UpgradeStatus: Upgraded to focal on 2020-07-10 (970 days ago)
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https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.15/+bug/2009672/+subscriptions
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