OK, this sounds like a mutter bug... unless that weirdness in your Xrandr.txt is related:
eDP-1 connected (normal left inverted right x axis y axis) ... DP-1 connected primary 2560x1440+0+0 (0x152) normal (normal left inverted right x axis y axis) 600mm x 340mm This means the desktop is arranged primarily to fit your external monitor (DP-1) but the built-in screen (eDP-1) has no known position. So it may not update properly. This is too suspicious to ignore so would be the first thing for someone to look at. -- 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/1846201 Title: Rendering is delayed on laptop display (works in external display) Status in mesa package in Ubuntu: New Status in mutter package in Ubuntu: New Status in xorg-server package in Ubuntu: New Bug description: This is a very wierd behavior I get on the Lenovo Yoga S940 after upgrading to 19.10. This makes the laptop almost unusable with its own display. This happens only on the laptop display, not on the external display. The render of portions of the screen does not happen after some events (listed below) resulting in all or part of the screen not being re-rendered. The UX is that nothing happened, but it has. This happens after: * key-stroke while typing sometimes * alt-tab * shift-right to align window to the right * ctrl-pgup/down to switch tab in multi tabs apps. Please note that: * screenshots can't see the problem * also screenrecorder always seem ok, despite rendering being broken. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: xorg 1:7.7+19ubuntu12 ProcVersionSignature: Ubuntu 5.3.0-13.14-generic 5.3.0 Uname: Linux 5.3.0-13-generic x86_64 ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Oct 1 13:13:40 2019 DistUpgraded: 2019-09-21 10:16:26,647 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: eoan DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation UHD Graphics 620 (Whiskey Lake) [8086:3ea0] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Lenovo UHD Graphics 620 (Whiskey Lake) [17aa:3801] InstallationDate: Installed on 2019-09-12 (18 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) MachineType: LENOVO 81Q7 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-13-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to eoan on 2019-09-21 (10 days ago) dmi.bios.date: 06/12/2019 dmi.bios.vendor: LENOVO dmi.bios.version: AKCN34WW dmi.board.asset.tag: No Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Yoga S940-14IWL dmi.modalias: dmi:bvnLENOVO:bvrAKCN34WW:bd06/12/2019:svnLENOVO:pn81Q7:pvrLenovoYogaS940-14IWL:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoYogaS940-14IWL: dmi.product.family: Yoga S940-14IWL dmi.product.name: 81Q7 dmi.product.sku: LENOVO_MT_81Q7_BU_idea_FM_Yoga S940-14IWL dmi.product.version: Lenovo Yoga S940-14IWL dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.99-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 19.1.6-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20190820-0ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1846201/+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
