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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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1888088

Title:
  [Lenovo IdeaPad Flex 5 14ARE05] Display won't rotate, nor do
  fractional scaling

Status in xorg package in Ubuntu:
  New

Bug description:
  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

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