Mouse pointer doesn't reach left edge of screen

[Kenneth Ruby]

In the live-boot USB stick of Ubuntu Desktop 20.04 LTS:

My mouse pointer does not visually reach the left edge of the screen. Logically the pointer functionality does reach the left edge, in the sense that it can select and copy text that extends to the left edge, but the pointer cannot be viewed performing this action; the displayed pointer stops (appears frozen) about two millimeters from the left edge.

The pointer reaches the upper, lower, and right edges of the screen without any problem.

My mouse and screen are brand new. My computer is 5 years old (launch 2016, purchase 2019).

I have the same problem with my Linux Mint (Cinnamon and Mate desktops), which is based on Ubuntu. I perform regular updates to the system. The file /var/log/Xorg.0.log does not show any errors or warnings related to the mouse.

The problem in Linux Mint persists even if I change:

- Screen resolution
- Theme
- Windows settings (Focus mode)
- General settings (VSync method, Compositing)
- Mouse acceleration and sensitivity
- Disabling of all Effects

Note that there is no problem with the mouse pointer with a live-boot USB stick containing Linux EndeavourOS.

Following are the parameters of my computer:

Machine:
  Type: Desktop Mobo: GIGABYTE model: MZBSWMP-00 v: 1.x serial: <filter>
  UEFI: American Megatrends v: F3 date: 12/21/2016
CPU:
  Topology: Quad Core model: Intel Celeron J3160 bits: 64 type: MCP
  arch: Airmont rev: 4 L2 cache: 1024 KiB
  flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 12800
  Speed: 552 MHz min/max: 480/2240 MHz Core speeds (MHz): 1: 650 2: 571
  3: 1718 4: 1002
Graphics:
  Device-1: Intel Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx
  Integrated Graphics
  vendor: Gigabyte driver: i915 v: kernel bus ID: 00:02.0
  Display: x11 server: X.Org 1.20.11 driver: modesetting
  unloaded: fbdev,vesa resolution: 1600x900~60Hz
  OpenGL: renderer: Mesa DRI Intel HD Graphics 400 (BSW) v: 4.6 Mesa 21.0.3
  direct render: Yes
Drives:
  Local Storage: total: 1.82 TiB used: 532.74 GiB (28.6%)
  ID-1: /dev/sda vendor: Samsung model: SSD 860 EVO 1TB size: 931.51 GiB
 Partition:
  ID-1: / size: 915.40 GiB used: 270.82 GiB (29.6%) fs: ext4 dev: /dev/sda2
Sensors:
  System Temperatures: cpu: 47.0 C mobo: N/A
  Fan Speeds (RPM): N/A
Info:
  Processes: 189 Uptime: 7m Memory: 7.56 GiB used: 731.8 MiB (9.4%)
  Init: systemd runlevel: 5 Compilers: gcc: 9.3.0 Shell: bash v: 5.0.17
  inxi: 3.0.38

[Paul White (paulw2u)]

Kenneth, raising bug reports against the Ubuntu project will seldom attract the attention of an Ubuntu developer that can assist in helping with the issue that you are experiencing. To ensure that the right people see a bug report, *every* report should identify the software package related to the bug.

I'm moving this bug report to the (somewhat default) 'xorg' package so that a member of the Desktop team will review your bug report and will reassign to package which is appropriate for the issue that you have experienced.

[Daniel van Vugt (vanvugt)]

It's a common problem with the GPUs in Intel Braswell chips.

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1767654, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.