You have been subscribed to a public bug:
I installed ubuntu 18.04 than upgraded to 19.04 and everything was
fine(resolution 1920x1080 on a samsung TV) for a few weeks than suddenly it
dropped to 1024x768.
I'm running a AMD HD7670 video card with a display port to HDMI cable to the
tv
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: xorg 1:7.7+19ubuntu12
ProcVersionSignature: Ubuntu 5.0.0-15.16-generic 5.0.6
Uname: Linux 5.0.0-15-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue May 21 21:25:49 2019
DistUpgraded: 2019-05-20 01:35:47,157 ERROR got error from PostInstallScript
./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process
“./xorg_fix_proprietary.py” (No such file or directory) (8))
DistroCodename: disco
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Caicos XT [Radeon HD 7470/8470 / R5
235/310 OEM] [1002:6778] (prog-if 00 [VGA controller])
Subsystem: Dell Radeon HD 7470 [1028:2120]
InstallationDate: Installed on 2019-05-19 (1 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
MachineType: Dell Inc. OptiPlex 755
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-15-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
SourcePackage: xorg
UpgradeStatus: Upgraded to disco on 2019-05-19 (1 days ago)
dmi.bios.date: 06/11/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A22
dmi.board.name: 0PU052
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA22:bd06/11/2012:svnDellInc.:pnOptiPlex755:pvr:rvnDellInc.:rn0PU052:rvr:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 755
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.98+git1905161830.922d92~oibaf~d
version.libgl1-mesa-dri: libgl1-mesa-dri 19.2~git1905190730.4689e9~oibaf~d
version.libgl1-mesa-glx: libgl1-mesa-glx 19.2~git1905190730.4689e9~oibaf~d
version.xserver-xorg-core: xserver-xorg-core 2:1.20.4-1ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20180925-2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug disco third-party-packages ubuntu
--
Radeon issue
https://bugs.launchpad.net/bugs/1829915
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