[Ubuntu-x-swat] [Bug 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Patch removed: "re-rolled debdiff for focal" https://bugs.launchpad.net/xorg-server/+bug/1776447/+attachment/5323646/+files/xorg-server_1.20.6-1ubuntu2.debdiff ** Description changed: [Impact] * IGLX is a way for an opengl application sending the 3D drawing GLX commands to the Xorg server for rendering instead of using the DRI infrastructure it is commonplace for High Performance Compute and Scientific institutions to use this feature of the Xorg server. (ref: https://www.phoronix.com/scan.php?page=news_item=Xorg-IGLX-Potential- Bye-Bye) * The feature is completely broken, currently, and any attempt to use it will cause the Xorg server to crash. This feature has been broken since a commit upstream in 2016. * The attached patch is from the revert commit entered into the upstream repository on 28 Jan 2020 following a git bisect of the bug discovering the offending commit. [Test Case] * Create a new file at /etc/X11/xorg.conf.d/99-IGLX.conf with the following contents: ``` Section "ServerFlags" Option "IndirectGLX" "on" EndSection ``` * Log out of your Xorg session * Switch to a VT (Ctrl+Alt+F2) and login * Run `sudo systemctl restart gdm` to restart Xorg * Login to the graphical session * If you do not have mesa-utils installed, then install it with the terminal command `sudo apt install mesa-utils` * Open a terminal and execute `LIBGL_ALWAYS_INDIRECT=1 glxgears` * If the fix is successful then glxgears should start and remain active without the Xorg server or glxgears crashing/segfaulting [Regression Potential] * This change is within DRI-related functionality and so might break all 3D accelerated applications. * There is a potential that the change is insufficient to fix the IGLX feature and so attempts to use it may still have undesirable and undefined results. * Upstream has run the patch through their CI system, which passed with no errors. This does not necessarily mean the patch will achieve the desired results, but at least indicates that the code does compile cleanly and can start an Xvfb headless instance. [Other Info] - * This bug affects Ubuntu releases all the way back to, and including, - Xenial 16.04. + * This bug affects Ubuntu releases all the way back to, and including, + Bionic 18.04. Original Bug Report Follows There's already an upstream bug report here: https://bugs.freedesktop.org/show_bug.cgi?id=99555 Basically, with Option "IndirectGLX" "True" and LIBGL_ALWAYS_INDIRECT=1 I get immediate crashes e.g. with glxgear: steved@xubuntu:~$ LIBGL_ALWAYS_INDIRECT=true glxgears Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. X Error of failed request: 255 Major opcode of failed request: 155 (GLX) Minor opcode of failed request: 1 (X_GLXRender) Serial number of failed request: 42 Current serial number in output stream: 936 I am trying to run what is effectively a traditional X Terminal, but as the hardware I am using has a 3D accelerated chipset it seems sensible to try to use it.. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xserver-xorg-core 2:1.19.6-1ubuntu4 ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 Uname: Linux 4.15.0-22-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.1 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' Date: Tue Jun 12 10:09:30 2018 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu DkmsStatus: rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-22-generic, x86_64: installed rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-23-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Device [8086:5a85] (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation Device [8086:2212] InstallationDate: Installed on 2018-05-31 (11 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: AZW S I ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-22-generic root=/dev/mapper/xubuntu--vg-root ro noresume SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/18/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 00.12 dmi.board.asset.tag: Default string dmi.board.name: AB1 dmi.board.vendor: IP3 Tech dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 35 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias:
[Ubuntu-x-swat] [Bug 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Patch added: "debdiff for focal" https://bugs.launchpad.net/xorg-server/+bug/1776447/+attachment/5323651/+files/xorg-server_1.20.6-1ubuntu2.debdiff -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Patch added: "debdiff for eoan" https://bugs.launchpad.net/xorg-server/+bug/1776447/+attachment/5323650/+files/xorg-server_1.20.5+git20191008-0ubuntu2.debdiff -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Attachment added: "debdiff for eoan" https://bugs.launchpad.net/xorg-server/+bug/1776447/+attachment/5323647/+files/xorg-server_1.20.5+git20191008-0ubuntu1.dsc -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Attachment removed: "debdiff for eoan" https://bugs.launchpad.net/xorg-server/+bug/1776447/+attachment/5323647/+files/xorg-server_1.20.5+git20191008-0ubuntu1.dsc -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Patch removed: "debdiff for focal" https://bugs.launchpad.net/xorg-server/+bug/1776447/+attachment/5323645/+files/xorg-server_1.20.6-1ubuntu2.debdiff ** Patch added: "re-rolled debdiff for focal" https://bugs.launchpad.net/xorg-server/+bug/1776447/+attachment/5323646/+files/xorg-server_1.20.6-1ubuntu2.debdiff -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Patch added: "debdiff for focal" https://bugs.launchpad.net/xorg-server/+bug/1776447/+attachment/5323645/+files/xorg-server_1.20.6-1ubuntu2.debdiff -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Description changed: + [Impact] + + * IGLX is a way for an opengl application sending the 3D drawing GLX + commands to the Xorg server for rendering instead of using the DRI + infrastructure it is commonplace for High Performance Compute and + Scientific institutions to use this feature of the Xorg server. (ref: + https://www.phoronix.com/scan.php?page=news_item=Xorg-IGLX-Potential- + Bye-Bye) + + * The feature is completely broken, currently, and any attempt to use + it will cause the Xorg server to crash. This feature has been broken + since a commit upstream in 2016. + + * The attached patch is from the revert commit entered into the + upstream repository on 28 Jan 2020 following a git bisect of the bug + discovering the offending commit. + + [Test Case] + + * Create a new file at /etc/X11/xorg.conf.d/99-IGLX.conf with the + following contents: + + ``` + Section "ServerFlags" + Option "IndirectGLX" "on" + EndSection + ``` + + * Log out of your Xorg session + * Switch to a VT (Ctrl+Alt+F2) and login + * Run `sudo systemctl restart gdm` to restart Xorg + * Login to the graphical session + * If you do not have mesa-utils installed, then install it with the terminal command `sudo apt install mesa-utils` + * Open a terminal and execute `LIBGL_ALWAYS_INDIRECT=1 glxgears` + * If the fix is successful then glxgears should start and remain active without the Xorg server or glxgears crashing/segfaulting + + [Regression Potential] + + * This change is within DRI-related functionality and so might break + all 3D accelerated applications. + + * There is a potential that the change is insufficient to fix the IGLX + feature and so attempts to use it may still have undesirable and + undefined results. + + * Upstream has run the patch through their CI system, which passed with no errors. This does not necessarily mean the patch will achieve the desired results, but at least indicates that the code does compile cleanly and can start an Xvfb headless instance. + + [Other Info] + + Original Bug Report Follows + There's already an upstream bug report here: https://bugs.freedesktop.org/show_bug.cgi?id=99555 Basically, with Option "IndirectGLX" "True" and LIBGL_ALWAYS_INDIRECT=1 I get immediate crashes e.g. with glxgear: - steved@xubuntu:~$ LIBGL_ALWAYS_INDIRECT=true glxgears + steved@xubuntu:~$ LIBGL_ALWAYS_INDIRECT=true glxgears Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. X Error of failed request: 255 - Major opcode of failed request: 155 (GLX) - Minor opcode of failed request: 1 (X_GLXRender) - Serial number of failed request: 42 - Current serial number in output stream: 936 + Major opcode of failed request: 155 (GLX) + Minor opcode of failed request: 1 (X_GLXRender) + Serial number of failed request: 42 + Current serial number in output stream: 936 I am trying to run what is effectively a traditional X Terminal, but as the hardware I am using has a 3D accelerated chipset it seems sensible to try to use it.. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xserver-xorg-core 2:1.19.6-1ubuntu4 ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 Uname: Linux 4.15.0-22-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.1 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' Date: Tue Jun 12 10:09:30 2018 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu DkmsStatus: - rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-22-generic, x86_64: installed - rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-23-generic, x86_64: installed + rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-22-generic, x86_64: installed + rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-23-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: - Intel Corporation Device [8086:5a85] (rev 0b) (prog-if 00 [VGA controller]) -Subsystem: Intel Corporation Device [8086:2212] + Intel Corporation Device [8086:5a85] (rev 0b) (prog-if 00 [VGA controller]) + Subsystem: Intel Corporation Device [8086:2212] InstallationDate: Installed on 2018-05-31 (11 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: AZW S I ProcEnviron: - TERM=xterm - PATH=(custom, no user) - XDG_RUNTIME_DIR= - LANG=en_GB.UTF-8 - SHELL=/bin/bash + TERM=xterm + PATH=(custom, no user) + XDG_RUNTIME_DIR= + LANG=en_GB.UTF-8 + SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-22-generic root=/dev/mapper/xubuntu--vg-root ro noresume SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/18/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 00.12 dmi.board.asset.tag: Default string dmi.board.name: AB1 dmi.board.vendor: IP3 Tech dmi.board.version:
[Ubuntu-x-swat] [Bug 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
The attachment "xorg-server-iglx.diff" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team. [This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.] ** Tags added: patch -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
That would be excellent - thanks! IGLX is one of those things probably not many people use, but those of us who do kind of really need it. It also seems to be a thing in HPC / research circles: https://www.phoronix.com/scan.php?page=news_item=Xorg-IGLX-Potential- Bye-Bye FWIW, I'm now (finally) using bionic everywhere.. -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
This is the upstream patch. It changes the return from __glXDRIcontextWait from hardcoded -1 to noClientException which will either be -1 or nothing. This is the pre-2016 behaviour that is being restored. ** Patch added: "xorg-server-iglx.diff" https://bugs.launchpad.net/xorg-server/+bug/1776447/+attachment/5323631/+files/xorg-server-iglx.diff -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
A fix has now landed upstream. I think this could be a candidate for an SRU cherry-pick for every supported release back to Xenial. The upstream commit is https://gitlab.freedesktop.org/xorg/xserver/commit/e1fa3beb2fe2519e69f859f0acdc68e5a770de27. It's a very simple one-line change and is merely a revert of a prior upstream commit. -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Changed in: xorg-server Status: Unknown => 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Tags added: disco eoan -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Bug watch added: gitlab.freedesktop.org/xorg/xserver/issues #211 https://gitlab.freedesktop.org/xorg/xserver/issues/211 ** Changed in: xorg-server Importance: Medium => Unknown ** Changed in: xorg-server Remote watch: freedesktop.org Bugzilla #99555 => gitlab.freedesktop.org/xorg/xserver/issues #211 ** Tags added: focal -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Changed in: xorg-server Status: Confirmed => Unknown -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
** Changed in: xorg-server (Ubuntu) Status: New => Confirmed -- 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/1776447 Title: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1776447/+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 1776447] Re: Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to crash
Launchpad has imported 8 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=99555. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2017-01-26T20:40:44+00:00 Diplosarus wrote: LIBGL_ALWAYS_INDIRECT=1 glxgears fails on latest git on r600 with: X Error of failed request: 255 Major opcode of failed request: 155 (GLX) Minor opcode of failed request: 1 (X_GLXRender) Serial number of failed request: 42 Current serial number in output stream: 164 After rendering one frame. this is on a ATI HD5850. This is 100% repeatable and occures with every opengl app. Direct Rendering works fine. Indirect rendering works with the vesa x11 driver and llvmpipe. xf86 -video-ati versus xf86-video-modestetting both fail. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1776447/comments/0 On 2017-01-27T08:23:43+00:00 Michel Dänzer wrote: This code in __glXForceCurrent: if (cx->wait && (*cx->wait) (cx, cl, error)) return NULL; calls DRI2WaitSwap, which returns TRUE because there is a pending swap. I suspect something to deal with this went missing at a higher level at some point. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1776447/comments/1 On 2017-01-29T23:35:31+00:00 Diplosarus wrote: Xorg 1.18.3 and below works fine, xorg 1.18.4 fails. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1776447/comments/2 On 2017-01-29T23:42:57+00:00 Diplosarus wrote: Looking at the commits between 1.18.3 and 1.18.4 this commit seams pertain to the case: https://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.18-branch=54ba95861e5ae54051d3963e5e7ced7d69a6de7b Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1776447/comments/3 On 2017-01-30T01:04:20+00:00 Michel Dänzer wrote: (In reply to diplosarus from comment #3) > Looking at the commits between 1.18.3 and 1.18.4 this commit seams pertain > to the case: > https://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.18- > branch=54ba95861e5ae54051d3963e5e7ced7d69a6de7b Does reverting that commit fix it? Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1776447/comments/4 On 2017-03-20T11:18:34+00:00 Diplosarus wrote: (In reply to Michel Dänzer from comment #4) > Does reverting that commit fix it? No sadly not. Also this bug Persists in 1.19.3 Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1776447/comments/5 On 2017-03-22T09:18:00+00:00 Michel Dänzer wrote: Can you bisect between 1.18.3 and 1.18.4? Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1776447/comments/6 On 2018-02-09T13:31:48+00:00 Kusanagi Kouichi wrote: I tested with xf86-video-ati-7.10.0-23-g733f606d. xorg-server-1.18.4 is good and xorg-server-1.19.0 is bad. Bisected and the result is: 7d33ab0f8c7958b205076f71e4b47c24aace77fd is the first bad commit commit 7d33ab0f8c7958b205076f71e4b47c24aace77fd Author: Adam Jackson Date: Tue Jun 28 15:54:44 2016 -0400 dri2: Don't make reference to noClientException noClientException is now never filled in with a meaningful value, it's always -1. The sole caller of this function disregards the error value in any case. Reviewed-by: Eric Anholt Signed-off-by: Adam Jackson :04 04 50ecf07fd43345192f937697193acbc91086e975 6d6494a0a06aed80c78491b758f7e35bf3059389 M glx Without 7d33ab0f8c7958b205076f71e4b47c24aace77fd, xorg-server-1.19.0 works but xorg-server-1.19.0-587-gbebcc8477 doesn't work. No X error but the following errors in dmesg: [1654246.207734] radeon :00:01.0: bo 90626cd73000 don't has a mapping in vm 90624f11d200 [1654246.212430] radeon :00:01.0: bo 90626cd73000 don't has a mapping in vm 90624f11d200 [1654246.220569] radeon :00:01.0: bo 90626cd73000 don't has a mapping in vm 90624f11d200 [1654246.220790] radeon :00:01.0: bo 90626cd73000 don't has a mapping in vm 90624f11d200 [1654246.220880] radeon :00:01.0: bo 90626cd73000 don't has a mapping in vm 90624f11d200 [1654246.236924] radeon :00:01.0: bo 90626cd73000 don't has a mapping in vm 90624f11d200 [1654246.237176] radeon
