Public bug reported:
Opening Settings -> Display and selecting an orientation other than Landscape
doesn't work.
Similarly, selecting Fractional Scaling and then picking a scale factor has no
effect.
This is a recently installed Ubuntu 20.04, fully updated, on a recently
released laptop/tablet that uses an AMD Ryzen 4500U integrated CPU/GPU.
It is possible that the GPU is not being detected by Ubuntu and that is
the root cause of the problem. I couldn't find an easy explanation
online about how to tell whether a GPU was detected or is in use. I did
try running "tlp-stat -g" to get graphics status, but it returns without
printing anything except its version number (1.3.1).
When I choose an orientation, such as Portrait Right, the setting
changes and an "Apply" button appears in the top of the Settings window.
When I press it, up pops up a dialog asking whether I want to "Keep
these display settings?" with two options, keep or revert. The rest of
the screen goes grey behind the dialog box, but I can already see that
the "Orientation" setting back in the Settings->Display window has been
reverted to "Landscape" without me doing anything. Whether I choose
keep or revert, or merely let it time out after 20 seconds, the result
remains the same -- the display stays in Landscape mode and the setting
that I had made is reverted.
Regarding scaling, I can set the display scale to 100% (default) or
200%, successfully. When I turn on the "Fractional Scaling" slider, the
graphics around the edge of the screen increase in size (the icons in
the left-hand dock, the text in the top bar), but the Scale settings do
not change (they remain "100%" and "200%"). However, if I switch to a
different setting (for example, "Mouse & Touchpad") and then back to
"Displays", the Scale settings have changed. I have included three
screenshots (original screen, Fractional Scaling on, and after switching
to and from Displays.
When I attempt to set a fractional scale such as 125%, the "Apply"
button appears in the upper right corner. When I press that, the
display does not scale, a pop-up asks if I want to keep or revert the
setting, but looking back at the Displays settings, the Scale has
already reverted to 100% (as above with the Orientation).
The display has been rock-solid before this, but now it started showing
artifacts, such as
previous copies of the Displays window. I've enclosed a screen shot. Merely
taking a screen shot also wiped out parts of the display to white; I took
another shot to show that.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
BootLog:
CasperMD5CheckResult: skip
CompositorRunning: None
Date: Sat Jul 18 14:00:38 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Renoir [1002:1636] (rev c3) (prog-if 00
[VGA controller])
Subsystem: Lenovo Renoir [17aa:3f1a]
InstallationDate: Installed on 2020-07-16 (1 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: LENOVO 81X2
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-40-generic
root=/dev/mapper/vgubuntu-root ro quiet splash acpi_enforce_resources=lax
vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/08/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: EECN20WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40700 WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 31
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad Flex 5 14ARE05
dmi.modalias:
dmi:bvnLENOVO:bvrEECN20WW:bd04/08/2020:svnLENOVO:pn81X2:pvrIdeaPadFlex514ARE05:rvnLENOVO:rnLNVNB161216:rvrSDK0J40700WIN:cvnLENOVO:ct31:cvrIdeaPadFlex514ARE05:
dmi.product.family: IdeaPad Flex 5 14ARE05
dmi.product.name: 81X2
dmi.product.sku: LENOVO_MT_81X2_BU_idea_FM_IdeaPad Flex 5 14ARE05
dmi.product.version: IdeaPad Flex 5 14ARE05
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.2
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
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal ubuntu
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1888088
Title:
[Lenovo IdeaPad Flex 5 14ARE05] Display won't rotate, nor do
fractional scaling
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