[Ubuntu-x-swat] [Bug 1892136] Re: reverse prime produces corrupted output on specific resolutions
Fixed in upstream 1.20 https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/539 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1892136 Title: reverse prime produces corrupted output on specific resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1892136/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1892136] Re: reverse prime produces corrupted output on specific resolutions
Fixed in upstream master https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/529 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1892136 Title: reverse prime produces corrupted output on specific resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1892136/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1892136] Re: reverse prime produces corrupted output on specific resolutions
@vanvugt is there any chance this gets merged? Preferably on Xorg's end, if you can give me a hint on whom to tag there it would be most appreciated. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1892136 Title: reverse prime produces corrupted output on specific resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1892136/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1892136] Re: reverse prime produces corrupted output on specific resolutions
Managed to reproduce on fresh download 20.10, too. OTOH, I remember seeing that gone in some cases on 20.04. I wonder what the exact cases are, as apparently this seems more complicated than "reproduces always". ** Tags added: groovy -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1892136 Title: reverse prime produces corrupted output on specific resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1892136/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1892136] Re: reverse prime produces corrupted output on specific resolutions
Just reproduced on 20.04. xserver-xorg-core: Installed: 2:1.20.8-2ubuntu2.2 Candidate: 2:1.20.8-2ubuntu2.2 No reproduction on 20.10 build, but it was tested on a different machine and issue might be hw-dependent. Te be confirmed on the same computer soon. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1892136 Title: reverse prime produces corrupted output on specific resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1892136/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1892136] [NEW] reverse prime produces corrupted output on specific resolutions
Public bug reported: The issue has initially been discovered for resolution 1366x768 on a DisplayLink (evdi)-backed device, but applies also to UDL, as well as reverse prime setups (rendering on Intel, output through NVidia). The issue manifests with 1366x768 and several other resolutions only, due to the fact that the GPU seems to use 64-aligned framebuffer stride. This is "accidentally" fine with the most popular VGA resolutions (e.g. assuming 32bits/4bytes per pixel and FullHD, the stride would be 1920*4 -> 7680, which is divisible by 64 w/o a remainder, yet 1366*4=5464, 5464/64 = 85.375). The proposed fix is to update the stride with the GPU-provided value instead of the Xorg-calculated one at the stage of sharing the pixmap between GPUs. Doing that at earlier stage would probably require distinguishing between allocation of a FB and a generic pixmap, which is the same for Xorg. Issue for sure was seen on 18.04 and 19.04, probably still there for 20.04. Upstream report: https://gitlab.freedesktop.org/xorg/xserver/-/issues/889 And posted (not yet integrated) fix: https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/496 ** Affects: xorg-server (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1892136 Title: reverse prime produces corrupted output on specific resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1892136/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1875015] Re: Ubuntu 20.04 and Displaylink is extremely slow
Assigning to xserver. Upstream bug report is here: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1028 ** Bug watch added: gitlab.freedesktop.org/xorg/xserver/-/issues #1028 https://gitlab.freedesktop.org/xorg/xserver/-/issues/1028 ** Package changed: ubuntu => xorg-server (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1875015 Title: Ubuntu 20.04 and Displaylink is extremely slow To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1875015/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1870512] Re: forced software cursor with PageFlip enabled triggers artifacts on screen
Fix in Xorg: https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/447#note_515426 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1870512 Title: forced software cursor with PageFlip enabled triggers artifacts on screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1870512/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1870512] Re: forced software cursor with PageFlip enabled triggers artifacts on screen
Adding movie depicting the problem. And it happens without actually moving the mouse, after dragging the window. ** Attachment added: "IMG_1245.MOV" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1870512/+attachment/5375562/+files/IMG_1245.MOV -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1870512 Title: forced software cursor with PageFlip enabled triggers artifacts on screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1870512/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1870512] Re: forced software cursor with PageFlip enabled triggers artifacts on screen
Fair point, but question is if it's software cursor from Xserver's perspective. NVidia driver might be blending the cursor in, while "emulating HW cursor" on the Xorg's end, right? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1870512 Title: forced software cursor with PageFlip enabled triggers artifacts on screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1870512/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1870512] Re: forced software cursor with PageFlip enabled triggers artifacts on screen
A recording would preferably be better, a screenshot might not give the full picture. Anyway, sure, I shall post it. The case I'm describing is more extreme, the squares are way bigger and flickering constantly, most of the time effectively preventing usage of the machine, such messy it gets. Plus, is the other user also using SW cursor? In the case described here it's related purely to that. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1870512 Title: forced software cursor with PageFlip enabled triggers artifacts on screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1870512/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1870512] Re: forced software cursor with PageFlip enabled triggers artifacts on screen
I guess the bug on Xorg's end is pretty self-explanatory: https://gitlab.freedesktop.org/xorg/xserver/-/issues/828 The fix for Xorg's has been smoked-tested recently, seems to be working fine. ** Bug watch added: gitlab.freedesktop.org/xorg/xserver/-/issues #828 https://gitlab.freedesktop.org/xorg/xserver/-/issues/828 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1870512 Title: forced software cursor with PageFlip enabled triggers artifacts on screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1870512/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1873401] [NEW] xorg lock-up on GPU hotplug
Public bug reported: Discovered when testing EVDI-backed screen (https://github.com/DisplayLink/evdi). While adding new device /dev/dri/cardX xorg locks, it can be observed by the cursors that stop blinking or menus not responding. Sometimes it is just a short (1-2 sec.) pause, but sometimes (hard to state the exact reproduction rate, rather rarely) the screen stops completely. Interestingly enough, if using HW cursor, it moves fine. Keyboard is at least partially functional, as it's possible to "bail out" to tty with C-A-Fx and kill the session. Anything else is difficult to check, as nothing really happens on the screen, it just remains frozen. When adding 4 GPUs at once (e.g. via config in /etc/modprobe.d according to https://support.displaylink.com/knowledgebase/articles/1843660-screen-freezes-after-opening-an-application-only). Haven't checked other numbers yet, to be done soon. The problem occurs, when adding the devices, not enabling their associated screens/reading EDID or anything like that. Also, to be checked with UDL, similar behaviour is expected, but due to the fact that it adds only a single device at a time reproducing "complete" freeze might be difficult. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg-core 2:1.20.8-2ubuntu2 ProcVersionSignature: Ubuntu 5.4.0-24.28-generic 5.4.30 Uname: Linux 5.4.0-24-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Fri Apr 17 09:24:35 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Dell 4th Gen Core Processor Integrated Graphics Controller [1028:060d] Subsystem: Dell GK107GLM [Quadro K1100M] [1028:060d] InstallationDate: Installed on 2020-04-16 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200415) MachineType: Dell Inc. Dell Precision M3800 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-24-generic root=UUID=e0a7aba8-1c09-4367-9d6b-c74b73017fb4 ro quiet splash vt.handoff=7 SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/25/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: Dell Precision M3800 dmi.board.vendor: Dell Inc. dmi.board.version: A12 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA12:bd05/25/2018:svnDellInc.:pnDellPrecisionM3800:pvrA12:rvnDellInc.:rnDellPrecisionM3800:rvrA12:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Dell Precision M3800 dmi.product.sku: Dell Precision M3800 dmi.product.version: A12 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2 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-server (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal ubuntu -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1873401 Title: xorg lock-up on GPU hotplug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1873401/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1870524] Re: fallback to SW cursor on GPU hotplug
Reported, issue ID 1008: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1008 ** Bug watch added: gitlab.freedesktop.org/xorg/xserver/-/issues #1008 https://gitlab.freedesktop.org/xorg/xserver/-/issues/1008 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1870524 Title: fallback to SW cursor on GPU hotplug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1870524/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1870524] [NEW] fallback to SW cursor on GPU hotplug
Public bug reported: I guess the title is pretty much self-explanatory. The issue has been discovered while connecting EVDI-backed device (https://github.com/DisplayLink/evdi) with a running Xorg session and led to filing of https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1870512 However, fixing the issue with SW cursor is only a partial solution in that case, as sticking to SW cursor can potentially hinder performance. I am aware of this (dix/dispatch.c): update_desktop_dimensions(); /* * We cannot register the Screen PRIVATE_CURSOR key if cursors are already * created, because dix/privates.c does not have relocation code for * PRIVATE_CURSOR. Once this is fixed the if() can be removed and we can * register the Screen PRIVATE_CURSOR key unconditionally. */ if (!dixPrivatesCreated(PRIVATE_CURSOR)) dixRegisterScreenPrivateKey(, pScreen, PRIVATE_CURSOR, 0); return i; } as well as several other similar places in Xorg's code. Question is: how big effort would it be to actually fix this? Should this be reported/consulted with the upstream directly maybe? ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg-core 2:1.20.7-2ubuntu2 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu21 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Fri Apr 3 12:45:07 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Dell 4th Gen Core Processor Integrated Graphics Controller [1028:060d] Subsystem: Dell GK107GLM [Quadro K1100M] [1028:060d] InstallationDate: Installed on 2020-03-30 (4 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200329) MachineType: Dell Inc. Dell Precision M3800 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic root=UUID=1b7a03b4-95ff-4d1b-9897-848a0dc6f8b9 ro quiet splash vt.handoff=7 SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/25/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: Dell Precision M3800 dmi.board.vendor: Dell Inc. dmi.board.version: A12 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA12:bd05/25/2018:svnDellInc.:pnDellPrecisionM3800:pvrA12:rvnDellInc.:rnDellPrecisionM3800:rvrA12:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Dell Precision M3800 dmi.product.sku: Dell Precision M3800 dmi.product.version: A12 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.100-4 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.2-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2 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+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 ** Affects: xorg-server (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal ubuntu -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1870524 Title: fallback to SW cursor on GPU hotplug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1870524/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 1870512] [NEW] forced software cursor with PageFlip enabled triggers artifacts on screen
Public bug reported: The following Xorg configuration triggers faulty behaviour, like blinking cursor, corrupt graphics around it etc.: 1 Section "Device" 2 Identifier "graphicsdriver" 3 Driver "modesetting" 4 Option "SWCursor" "true" 5 #Option "PageFlip" "off" 6 #Option "AccelMethod" "none" 7 EndSection Either switching SWCursor to false or uncommenting line 5 or 6 makes the issue disappear. Disabling accelleration is naturally the least recommended way of resolving the issue. As far as I've analyzed Xorg's source code shipped with 20.04, I can see that https://gitlab.freedesktop.org/xorg/xserver/commit/0aaac8d783e78c040a70a55ba8d67809abd7e625 which should probably automatically handle the issue (haven't tried to build with those changes yet) is not included. If it ever should be in (as it looks like a workaround only), reamains an open question. I am not entirely sure which package to attach this bug to, Xorg seems the most viable at the moment. My reason for the uncertainty originates from the fact, that I have also tested other distros, e.g. SuSE tumbleweed (build from this week, exact versions to be added if needed) with KDE plasma, which happens to reproduce the bug only with OpenGL set as compositor's backend; XRender operates perfectly fine there; hence it is a bit unclear to me which compoment is the "owning interface" and which one is actually buggy, be it Xorg, mesa or compositor; please reassign the bug accordingly if needed. My plan for the nearest future is to verify whether the aforementioned change actually circumvents the issue. If anything else should be looked at to fix the problem, I am open for suggestions. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg-core 2:1.20.7-2ubuntu2 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu21 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Fri Apr 3 09:41:57 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Dell 4th Gen Core Processor Integrated Graphics Controller [1028:060d] Subsystem: Dell GK107GLM [Quadro K1100M] [1028:060d] InstallationDate: Installed on 2020-03-30 (4 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200329) MachineType: Dell Inc. Dell Precision M3800 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic root=UUID=1b7a03b4-95ff-4d1b-9897-848a0dc6f8b9 ro quiet splash vt.handoff=7 SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/25/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: Dell Precision M3800 dmi.board.vendor: Dell Inc. dmi.board.version: A12 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA12:bd05/25/2018:svnDellInc.:pnDellPrecisionM3800:pvrA12:rvnDellInc.:rnDellPrecisionM3800:rvrA12:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Dell Precision M3800 dmi.product.sku: Dell Precision M3800 dmi.product.version: A12 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.100-4 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.2-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2 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+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 ** Affects: xorg-server (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal ubuntu -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1870512 Title: forced software cursor with PageFlip enabled triggers artifacts on screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1870512/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp