[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
*** This bug is a duplicate of bug 1871959 *** https://bugs.launchpad.net/bugs/1871959 Mesa is the core graphics library. Everything uses it and you can't remove it. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
*** This bug is a duplicate of bug 1871959 *** https://bugs.launchpad.net/bugs/1871959 Hi, Ok thanks. In bug 1871959 you ask to report to mesa, what's "mesa"? I don't think I have installed myself this. If it cause the bug, is it possible to remove it? Thanks, -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
*** This bug is a duplicate of bug 1871959 *** https://bugs.launchpad.net/bugs/1871959 Great, thanks! That's a duplicate of bug 1871959 which has useful debug symbols. Unless/until any evidence can be found that this bug is not the same, I will mark it as a duplicate of bug 1871959. ** This bug has been marked a duplicate of bug 1871959 Xorg crashed with SIGABRT in _iris_batch_flush.cold() from iris_fence_flush() from st_glFlush() -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
Well if I couldn't use ubuntu bug, I could use that, hope it'll help : apport-cli -c /var/crash/_usr_lib_xorg_Xorg.1000.crash It then create this bug entry : https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1915375 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
Oh I forgot, Yes, i have installed dbgsym : $ dpkg -l| grep dbgsym ii libgl1-mesa-dri-dbgsym:amd64 20.2.6-0ubuntu0.20.04.1 amd64 debug symbols for libgl1-mesa-dri ii xserver-xorg-core-dbgsym 2:1.20.9-2ubuntu1.2~20.04.1 amd64 debug symbols for xserver-xorg-core -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
Hi, Ok, if there's nothing here about xorg crash, how may I provide you more information about that : ppaquin@PORTABLE-PPAQUIN:/var/crash$ ls -alrt . -rw-r- 1 username whoopsie 17322105 févr. 10 14:15 _usr_lib_xorg_Xorg.1000.crash It seems I have some informations on my system about crash. but the following command doesn't work. I have a message with some "internal error" : sudo ubuntu-bug _usr_lib_xorg_Xorg.1000.crash Thanks, -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
Thanks, but it looks the same :( (EE) Backtrace: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x13c) [0x557db676a59c] (EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x60) [0x7fbec831b41f] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (gsignal+0xcb) [0x7fbec815818b] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (abort+0x12b) [0x7fbec8137859] (EE) unw_get_proc_name failed: no unwind info found [-10] (EE) 4: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (?+0x0) [0x7fbec62a8aec] (EE) 5: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (nouveau_drm_screen_create+0x25c8ec) [0x7fbec6ffac9c] (EE) 6: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (__driDriverGetExtensions_zink+0x2561d) If you already have libgl1-mesa-dri- dbgsym_20.2.6-0ubuntu0.20.04.1_amd64.ddeb installed then it seems the problem right now is that Xorg doesn't know how to load debug symbols. https://errors.ubuntu.com/ is also not showing me any Xorg crashes from your system since January. So I think we need to do one of two things: * Attach a debugger to the Xorg process before it crashes; or * Configure Xorg to dump core properly and not try to catch its own crashes. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
Hi, one more crash for me, you'll find iris_dri error at 14:15:47 time ** Attachment added: "prevboot.txt" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1907142/+attachment/5462347/+files/prevboot.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
Alternatively, you might like to try using 'Ubuntu on Wayland' instead. If you then encounter any crashes in gnome-shell, please report them as new bugs and mention the bug IDs here. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1907142] Re: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink
The DisplayLink engineer I asked no longer works for DisplayLink :( The next step for anyone affected would be to try and get a better quality stack trace because we need to find out what part of iris_dri.so is really crashing. If you're on Ubuntu 20.04 then please install: https://launchpad.net/ubuntu/+archive/primary/+files/libgl1-mesa-dri- dbgsym_20.2.6-0ubuntu0.20.04.1_amd64.ddeb and then send us the system logs (journalctl output) from the crash next time it happens. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907142 Title: [DisplayLink] [evdi] [i915] Xorg crashes with abort in iris_dri.so when using DisplayLink Status in evdi package in Ubuntu: Confirmed Status in mesa package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: Since my upgrade from 18.04 to 20.04 I experience rather frequent crashes of the X server. Nothing specific of applications running, presumably at videos (VLC, Youtube in a browser tab ...). If not yet attached, I'll attach the *.old log with the most recent trace. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xserver-xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73 Uname: Linux 5.4.0-56-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: KDE Date: Mon Dec 7 22:15:34 2020 DistUpgraded: 2020-11-30 17:56:17,036 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (660 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-56-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to focal on 2020-11-30 (7 days ago) dmi.bios.date: 03/24/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETB2W (2.12 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETB2W(2.12):bd03/24/2020:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.sku: LENOVO_MT_20CH_BU_Think_FM_ThinkPad Helix 2nd dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.8-0ubuntu1~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.6 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/ubuntu/+source/evdi/+bug/1907142/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
