#0 0x000055befa524260 in execute_cfa_program (fde=0x621000f84c90, http://www-look-4.com/technology/peugeot-208/ insn_ptr=0x7fab8d86da86 <error: Cannot access memory at address 0x7fab8d86da86>, http://the-hunters.org/category/tech/ insn_end=0x7fab8d86da90 <error: Cannot access memory at address 0x7fab8d86da90>, gdbarch=0x621000be3d10, https://komiya-dental.com/computers/huawei-technology/ pc=0xffffffff81b3318e, fs=0x7ffe0a288d10, text_offset=0x0) at /home/smarchi/src/binutils-gdb/gdb/dwarf2/frame.c:367 http://www.iu-bloomington.com/crypto/china-affect-on-crypto/ #1 0x000055befa52bf02 in dwarf2_frame_cache (this_frame=0x6210006cfde0, this_cache=0x6210006cfdf8) https://waytowhatsnext.com/crypto/cryptocurrency-taxes/ at /home/smarchi/src/binutils-gdb/gdb/dwarf2/frame.c:1025 #2 0x00 http://fishingnewsletters.co.uk/category/property/ 0055befa52ea38 in dwarf2_frame_this_id (this_frame=0x6210006cfde0, http://www.wearelondonmade.com/services/car-repair-services/ this_cache=0x6210006cfdf8, this_id=0x6210006cfe40) at /home/smarchi/src/binutils-gdb/gdb/dwarf2/frame.c:1226 http://www.jopspeech.com/property/slim-pen-2/ #3 0x000055befa8dde95 in compute_frame_id (fi=0x6210006cfde0) at /home/smarchi/src/binutils-gdb/gdb/frame.c:588 http://joerg.li/tech/cars-comparison/ #4 0x000055befa8de53e in get_frame_id (fi=0x6210006cfde0) at /home/smarchi/src/binutils-gdb/gdb/frame.c:636 http://connstr.net/tech/mars-surface/ #5 0x000055befa8ecf33 in get_prev_frame (this_frame=0x6210006cfde0) http://www.go-mk-websites.co.uk/category/property/ at /home/smarchi/src/binutils-gdb/gdb/frame.c:2504 http://embermanchester.uk/property/chat-themes/ #6 0x000055befb1ff582 in frame_info_to_frame_object (frame=0x6210006cfde0) http://www.mconstantine.co.uk/category/property/ at /home/smarchi/src/binutils-gdb/gdb/python/py-frame.c:364 http://www.slipstone.co.uk/computers/isofix/ #7 0x000055befb201016 in gdbpy_newest_frame (self=0x7fabbcb11a40, args=0x0) at /home/smarchi/src/binutils-gdb/gdb/python/py-frame.c:599 #8 0x00007fabc25f01aa in cfunction_vectorcall_NOARGS (func=0x7fabbca78d60, args=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/methodobject.c:459 http://www.logoarts.co.uk/tech/drone-cameras/ #9 0x00007fabc2405d6d in _PyObject_Vectorcall (kwnames=<optimized out>, nargsf=<optimized out>, args=<optimized out>, callable=<optimized out>) at ../Include/cpython/abstract.h:127 http://www.acpirateradio.co.uk/property/applications/ #10 call_function (tstate=0x612000009940, pp_stack=0x7ffe0a289370, oparg=<optimized out>, kwnames=0x0) at ../Python/ceval.c:4963 http://www.compilatori.com/health/premium-subscription/ #11 0x00007fabc240def6 in _PyEval_EvalFrameDefault (f=<optimized out>, throwflag=<optimized out>) at ../Python/ceval.c:3469 https://www.webb-dev.co.uk/shopping/shopping-during-corona/ #12 0x00007fabc241106b in function_code_fastcall (co=<optimized out>, args=<optimized out>, nargs=1, globals=<optimized out>) at ../Objects/call.c:283
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/1873895 Title: Regression: block staircase display with side-by-side monitors of different pixel widths Status in xf86-video-amd: Unknown Status in Xfwm4: Unknown Status in xfwm4 package in Ubuntu: Fix Released Status in xserver-xorg-video-amdgpu package in Ubuntu: Triaged Status in xfwm4 source package in Focal: In Progress Status in xserver-xorg-video-amdgpu source package in Focal: Triaged Status in xfwm4 source package in Groovy: Fix Released Status in xserver-xorg-video-amdgpu source package in Groovy: Won't Fix Bug description: [Impact] * This issue affects AMD graphics on Xfwm4 4.14.1. * Windows are displayed staggered with a multi-window layout [Test Plan] * Use AMD graphics drivers * Connect a second display at a different resolution * Open multiple windows * While the issue is present, the windows and desktop will appeared staggered * Once fixed, they display normally. [Where problems could occur] * Regression potential should be relatively low, as the release between 4.14.1 and 4.14.5 are bug releases. * With window managers, some changes could lead to different behavior and other broken displays. Non-AMD graphics users should also test for regressions. [Other Info] * Please see the Xfwm4 release notes for changes between 4.14.1 and 4.14.5: https://gitlab.xfce.org/xfce/xfwm4/-/blob/xfce-4.14/NEWS#L7-44 [Original Report] Update based on further research. This only happens when the secondary external display is operating at a different pixel width to the internal. In this case eDP is 1920x1080 whereas the external HDMI-A-0 is natively 1680x1050. It is caused by xfwm4's recent switch from using glx to xpresent for AMD GPUs. The underlying bug is in the AMD driver. I was able to reproduce on an external 1920x1200 display only when it was set to a non-native 1680x1050 resolution. --- Two identical Lenovo E495 laptops with 20.04 installed. The problem occurred initially on the laptop that is having package upgrades applied regularly. With dual monitors and the external monitor placed left or right the display has a blocked staircase effect shown in the attached photograph, and seems related to https://gitlab.freedesktop.org/xorg/driver/xf86-video- amdgpu/-/issues/10 More detailed investigation suggests it only happens when the X coordinate of the two monitors is different. The symptom looks like an off-by-one error because it appears as if the display is divided into, say, 10 rows and 15 columns but the first row has 16 'columns' worth of blocks on it and so wraps to the beginning of the 2nd row, and so on. On the laptop without package upgrades being applied this didn't happen. So I upgraded it (314 packages) and restarted and it too sees the same problem. I suspected libxcomposite1 and downgraded it to 1:0.4.5-0ubuntu1 but that didn't solve it. I now suspect libxcb but so far haven't been able to prove it. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: XFCE DistUpgraded: Fresh install DistroCodename: focal DistroRelease: Ubuntu 20.04 DistroVariant: ubuntu GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Picasso [1002:15d8] (rev c1) (prog-if 00 [VGA controller]) Subsystem: Lenovo ThinkPad E595 [17aa:5124] InstallationDate: Installed on 2020-04-08 (11 days ago) InstallationMedia: Xubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200408) MachineType: LENOVO 20NECTO1WW Package: xserver-xorg-video-amdgpu 19.1.0-1 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-21-generic root=/dev/mapper/ELLOE000-rootfs ro acpi_osi=! "acpi_osi=Windows 2016" quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Tags: focal ubuntu ubuntu Uname: Linux 5.4.0-21-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip libvirt lp lpadmin lxd plugdev sambashare sudo users _MarkForUpload: True dmi.bios.date: 12/23/2019 dmi.bios.vendor: LENOVO dmi.bios.version: R11ET32W (1.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20NECTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrR11ET32W(1.12):bd12/23/2019:svnLENOVO:pn20NECTO1WW:pvrThinkPadE495:rvnLENOVO:rn20NECTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad E495 dmi.product.name: 20NECTO1WW dmi.product.sku: LENOVO_MT_20NE_BU_Think_FM_ThinkPad E495 dmi.product.version: ThinkPad E495 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1 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 To manage notifications about this bug go to: https://bugs.launchpad.net/xf86-video-amd/+bug/1873895/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
