This sounds like an HDMI connection/signalling problem. Please check to
see if a direct connection (no receiver), and even a new cable, exhibits
the same problem.
** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu)
** Summary changed:
- Screen "disconnects" when updating screen buffer
+ [i915] Screen "disconnects" when updating screen buffer
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Changed in: xorg-server (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1926032
Title:
[i915] Screen "disconnects" when updating screen buffer
Status in linux package in Ubuntu:
Incomplete
Status in xorg-server package in Ubuntu:
Incomplete
Bug description:
I have a problem in which the screen will behave as if I pulled the
HDMI or turned the computer off (no source) for a few seconds until
the screen comes back on again. This happens a lot when I open a new
window, moves the mouse after it has been still for a while or I open
a new window or move the current window.
I can watch a whole movie without this problem but as soon as I pause
or touch the controls of VLC or move the mouse the problem reocurr. It
seems to be after a certain idle period most of the time, but not
always. Sometimes it happens many times in a row.
The setup is my home built media PC with intel integrated graphics
(i5-9400) connected to a philips 55" TV (55POS901F) through a Pioneer
AV receiver.
I have tried probably every possible resolution and screen update
frequency and the problem is still there.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-66.74-generic 5.4.86
Uname: Linux 5.4.0-66-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat Apr 24 21:57:54 2021
DistUpgraded: 2020-12-01 07:11:08,428 DEBUG Running PostInstallScript:
'./xorg_fix_proprietary.py'
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation UHD Graphics 630 (Desktop 9 Series) [8086:3e98] (rev 02)
(prog-if 00 [VGA controller])
Subsystem: ASRock Incorporation UHD Graphics 630 (Desktop 9 Series)
[1849:3e98]
InstallationDate: Installed on 2020-12-01 (144 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64
(20190210)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0aa7 Intel Corp.
Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-66-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to focal on 2020-12-01 (144 days ago)
dmi.bios.date: 05/14/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P4.10
dmi.board.name: H310CM-ITX/ac
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP4.10:bd05/14/2019:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH310CM-ITX/ac:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
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