I can confirm that the problem is present with both the intel and the modesetting driver on Braswell systems. The exact symptoms differ for each, but in both cases it is triggered when the mouse touches the left limit of the screen. With modesetting, it seems to "stick" until you move the mouse away from the left side. With intel, touching the left side starts a flickering that persists even after you move the mouse away. Mainly, just the mouse cursor flickers, but the whole screen will flicker when doing graphics intensive tasks like fullscreen video or gaming. Sometimes, the mouse flicker can be so bad it becomes nearly invisible.
I have made full report on the bug report thread opened by Salvatore. The good news is I found a workaround, you can use xrandr to scale the display to 0.9999x0.9999 and this prevents the issues in both intel and modesetting. This can be done in your .xprofile in your home directory to take effect at login. It does come with a slight performance penalty, but it's preferable to the glitching that happens otherwise (at least until someone fixes the regression). xrandr --output HDMI-3 --mode 1920x1080 --scale 0.9999x0.9999 Replace "HDMI-3" with the name of your display (can be found by running xrandr with no options). -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1767654 Title: [Intel Braswell] Cursor gets stuck on left side of the screen Status in Linux: New Status in gnome-shell package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in mutter package in Ubuntu: Confirmed Bug description: When moving the cursor to the left side of the screen, it stops close to the edge. The cursor still moves over in the area but invisible until I move it out of the area. When it doesn't do this, glitching occurs on the screen where the cursor is until I log out. And on screen cast it shows the cursor going to the side of the screen and moving. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Sat Apr 28 09:49:51 2018 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [8086:22b1] (rev 21) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [8086:2060] InstallationDate: Installed on 2018-04-27 (0 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 8087:0a2a Intel Corp. Bus 001 Device 003: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 001 Device 002: ID 046d:c534 Logitech, Inc. Unifying Receiver Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: \\boot\vmlinuz-4.15.0-20-generic root=UUID=c6f92850-287a-4747-ac0d-3af593994183 ro quiet splash vt.handoff=1 initrd=boot\initrd.img-4.15.0-20-generic SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/08/2017 dmi.bios.vendor: Intel Corp. dmi.bios.version: PYBSWCEL.86A.0062.2017.0308.1328 dmi.board.name: NUC5CPYB dmi.board.vendor: Intel Corporation dmi.board.version: H61145-408 dmi.chassis.type: 3 dmi.modalias: dmi:bvnIntelCorp.:bvrPYBSWCEL.86A.0062.2017.0308.1328:bd03/08/2017:svn:pn:pvr:rvnIntelCorporation:rnNUC5CPYB:rvrH61145-408:cvn:ct3:cvr: version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.91-2 version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc5-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc5-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1767654/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
