Public bug reported: It would be great to implement something like feature request bumblebee#978 (https://github.com/Bumblebee- Project/Bumblebee/issues/978), because bbswitch doesn't work with later kernels unless you disable pci power management at boot with pcie_port_pm=off added to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub (see https://github.com/Bumblebee- Project/bbswitch/issues/140 for more details) and in fact later kernels automatically activate and suspend the card as required, replacing the functionality of bbswitch.
To confirm this, I tried modifying the Ubuntu bumblebee source package, but it fails to build in Cosmic on my laptop with a number of reference errors like so (even though I do have libkmod2 installed): /usr/bin/ld: src/module.o: in function `module_is_loaded': /home/rocko/src/bumblebee-3.2.1/src/module.c:46: undefined reference to `kmod_module_new_from_name' So I modified the bumblebee develop branch from git (https://github.com /Bumblebee-Project/Bumblebee/tree/develop) with the attached patch and built it to confirm that bumblebee works when allowing the kernel to manage power management. The most relevant part of the patch is this: @@ -227,8 +228,12 @@ static void switch_and_unload(void) char driver[BUFFER_SIZE]; if (bb_config.pm_method == PM_DISABLED && bb_status.runmode != BB_RUN_EXIT) { - /* do not disable the card if PM is disabled unless exiting */ - return; + /* RR: unload the driver loaded by the graphics card */ + bb_log(LOG_INFO, "PM disabled, unloading nvidia drivers anyway\n"); + if (pci_get_driver(driver, pci_bus_id_discrete, sizeof driver)) { + module_unload(driver); + } + return; } //if card is on and can be switched, switch it off but I have also included changing configuration defaults like PM_METHOD=none and setting up the Ubuntu library paths for nvidia and primus in Ubuntu 18.04/18.10 (see https://bugs.launchpad.net/ubuntu/+source/bumblebee/+bug/1758243 for why). Then I configured and built it with: autoreconf -f ./configure CONF_DRIVER=nvidia CONF_DRIVER_MODULE_NVIDIA=nvidia CONF_PM_METHOD=none \ CONF_LDPATH_NVIDIA=/usr/lib/x86_64-linux-gnu:/usr/lib/i386-linux-gnu \ CONF_MODPATH_NVIDIA=/usr/lib/x86_64-linux-gnu/nvidia/xorg,/usr/lib/xorg/modules,/usr/lib/xorg/modules/input \ --prefix=/usr --sysconfdir=/etc make clean make && sudo make install I disabled bbswitch via /etc/modprobe.d/bbswitch: blacklist bbswitch and then on reboot, optirun seems to be working fine: $ optirun glxinfo|grep NVIDIA server glx vendor string: NVIDIA Corporation OpenGL vendor string: NVIDIA Corporation OpenGL core profile version string: 4.6.0 NVIDIA 396.54 OpenGL core profile shading language version string: 4.60 NVIDIA OpenGL version string: 4.6.0 NVIDIA 396.54 OpenGL shading language version string: 4.60 NVIDIA and afterwards, the nvidia card is turned off: $ cat /sys/bus/pci/devices/0000\:01\:00.0/power/runtime_status suspended This works even after a suspend/resume cycle. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: bumblebee 3.2.1-17 [modified: usr/bin/bumblebee-bugreport usr/bin/optirun usr/sbin/bumblebeed usr/share/doc/bumblebee/README.markdown] Uname: Linux 4.19.0-041900rc3-generic x86_64 ApportVersion: 2.20.10-0ubuntu9 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Sep 11 13:30:22 2018 InstallationDate: Installed on 2017-08-16 (390 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) SourcePackage: bumblebee UpgradeStatus: Upgraded to cosmic on 2018-08-15 (26 days ago) mtime.conffile..etc.bumblebee.bumblebee.conf: 2018-09-10T12:33:56.368908 mtime.conffile..etc.bumblebee.xorg.conf.nvidia: 2018-09-10T12:33:56.368908 ** Affects: bumblebee (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug cosmic ** Patch added: "bumblebee-git-develop.diff" https://bugs.launchpad.net/bugs/1791883/+attachment/5187396/+files/bumblebee-git-develop.diff ** Description changed: It would be great to implement something like feature request - bumblebee#140 (https://github.com/Bumblebee- + bumblebee#978 (https://github.com/Bumblebee- Project/Bumblebee/issues/978), because bbswitch doesn't work with later kernels unless you disable pci power management at boot with pcie_port_pm=off added to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub (see https://github.com/Bumblebee- Project/bbswitch/issues/140 for more details) and in fact later kernels automatically activate and suspend the card as required, replacing the functionality of bbswitch. To confirm this, I tried modifying the Ubuntu bumblebee source package, but it fails to build in Cosmic on my laptop with a number of reference errors like so (even though I do have libkmod2 installed): /usr/bin/ld: src/module.o: in function `module_is_loaded': /home/rocko/src/bumblebee-3.2.1/src/module.c:46: undefined reference to `kmod_module_new_from_name' So I modified the bumblebee develop branch from git (https://github.com /Bumblebee-Project/Bumblebee/tree/develop) with the attached patch and built it to confirm that bumblebee works when allowing the kernel to manage power management. The most relevant part of the patch is this: @@ -227,8 +228,12 @@ static void switch_and_unload(void) - char driver[BUFFER_SIZE]; - - if (bb_config.pm_method == PM_DISABLED && bb_status.runmode != BB_RUN_EXIT) { + char driver[BUFFER_SIZE]; + + if (bb_config.pm_method == PM_DISABLED && bb_status.runmode != BB_RUN_EXIT) { - /* do not disable the card if PM is disabled unless exiting */ - return; + /* RR: unload the driver loaded by the graphics card */ + bb_log(LOG_INFO, "PM disabled, unloading nvidia drivers anyway\n"); + if (pci_get_driver(driver, pci_bus_id_discrete, sizeof driver)) { + module_unload(driver); + } + return; - } - - //if card is on and can be switched, switch it off + } + + //if card is on and can be switched, switch it off but I have also included changing configuration defaults like PM_METHOD=none and setting up the Ubuntu library paths for nvidia and primus in Ubuntu 18.04/18.10 (see https://bugs.launchpad.net/ubuntu/+source/bumblebee/+bug/1758243 for why). Then I configured and built it with: autoreconf -f ./configure CONF_DRIVER=nvidia CONF_DRIVER_MODULE_NVIDIA=nvidia CONF_PM_METHOD=none \ - CONF_LDPATH_NVIDIA=/usr/lib/x86_64-linux-gnu:/usr/lib/i386-linux-gnu \ - CONF_MODPATH_NVIDIA=/usr/lib/x86_64-linux-gnu/nvidia/xorg,/usr/lib/xorg/modules,/usr/lib/xorg/modules/input \ - --prefix=/usr --sysconfdir=/etc + CONF_LDPATH_NVIDIA=/usr/lib/x86_64-linux-gnu:/usr/lib/i386-linux-gnu \ + CONF_MODPATH_NVIDIA=/usr/lib/x86_64-linux-gnu/nvidia/xorg,/usr/lib/xorg/modules,/usr/lib/xorg/modules/input \ + --prefix=/usr --sysconfdir=/etc make clean make && sudo make install I disabled bbswitch via /etc/modprobe.d/bbswitch: blacklist bbswitch and then on reboot, optirun seems to be working fine: $ optirun glxinfo|grep NVIDIA server glx vendor string: NVIDIA Corporation OpenGL vendor string: NVIDIA Corporation OpenGL core profile version string: 4.6.0 NVIDIA 396.54 OpenGL core profile shading language version string: 4.60 NVIDIA OpenGL version string: 4.6.0 NVIDIA 396.54 OpenGL shading language version string: 4.60 NVIDIA and afterwards, the nvidia card is turned off: $ cat /sys/bus/pci/devices/0000\:01\:00.0/power/runtime_status suspended This works even after a suspend/resume cycle. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: bumblebee 3.2.1-17 [modified: usr/bin/bumblebee-bugreport usr/bin/optirun usr/sbin/bumblebeed usr/share/doc/bumblebee/README.markdown] Uname: Linux 4.19.0-041900rc3-generic x86_64 ApportVersion: 2.20.10-0ubuntu9 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Sep 11 13:30:22 2018 InstallationDate: Installed on 2017-08-16 (390 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) SourcePackage: bumblebee UpgradeStatus: Upgraded to cosmic on 2018-08-15 (26 days ago) mtime.conffile..etc.bumblebee.bumblebee.conf: 2018-09-10T12:33:56.368908 mtime.conffile..etc.bumblebee.xorg.conf.nvidia: 2018-09-10T12:33:56.368908 -- You received this bug notification because you are a member of Bumblebee Project, which is subscribed to bumblebee in Ubuntu. Matching subscriptions: Bumblebee Team https://bugs.launchpad.net/bugs/1791883 Title: Feature request: modify bumblebee to unload nvidia modules if power management is done by the kernel Status in bumblebee package in Ubuntu: New Bug description: It would be great to implement something like feature request bumblebee#978 (https://github.com/Bumblebee- Project/Bumblebee/issues/978), because bbswitch doesn't work with later kernels unless you disable pci power management at boot with pcie_port_pm=off added to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub (see https://github.com/Bumblebee- Project/bbswitch/issues/140 for more details) and in fact later kernels automatically activate and suspend the card as required, replacing the functionality of bbswitch. To confirm this, I tried modifying the Ubuntu bumblebee source package, but it fails to build in Cosmic on my laptop with a number of reference errors like so (even though I do have libkmod2 installed): /usr/bin/ld: src/module.o: in function `module_is_loaded': /home/rocko/src/bumblebee-3.2.1/src/module.c:46: undefined reference to `kmod_module_new_from_name' So I modified the bumblebee develop branch from git (https://github.com/Bumblebee-Project/Bumblebee/tree/develop) with the attached patch and built it to confirm that bumblebee works when allowing the kernel to manage power management. The most relevant part of the patch is this: @@ -227,8 +228,12 @@ static void switch_and_unload(void) char driver[BUFFER_SIZE]; if (bb_config.pm_method == PM_DISABLED && bb_status.runmode != BB_RUN_EXIT) { - /* do not disable the card if PM is disabled unless exiting */ - return; + /* RR: unload the driver loaded by the graphics card */ + bb_log(LOG_INFO, "PM disabled, unloading nvidia drivers anyway\n"); + if (pci_get_driver(driver, pci_bus_id_discrete, sizeof driver)) { + module_unload(driver); + } + return; } //if card is on and can be switched, switch it off but I have also included changing configuration defaults like PM_METHOD=none and setting up the Ubuntu library paths for nvidia and primus in Ubuntu 18.04/18.10 (see https://bugs.launchpad.net/ubuntu/+source/bumblebee/+bug/1758243 for why). Then I configured and built it with: autoreconf -f ./configure CONF_DRIVER=nvidia CONF_DRIVER_MODULE_NVIDIA=nvidia CONF_PM_METHOD=none \ CONF_LDPATH_NVIDIA=/usr/lib/x86_64-linux-gnu:/usr/lib/i386-linux-gnu \ CONF_MODPATH_NVIDIA=/usr/lib/x86_64-linux-gnu/nvidia/xorg,/usr/lib/xorg/modules,/usr/lib/xorg/modules/input \ --prefix=/usr --sysconfdir=/etc make clean make && sudo make install I disabled bbswitch via /etc/modprobe.d/bbswitch: blacklist bbswitch and then on reboot, optirun seems to be working fine: $ optirun glxinfo|grep NVIDIA server glx vendor string: NVIDIA Corporation OpenGL vendor string: NVIDIA Corporation OpenGL core profile version string: 4.6.0 NVIDIA 396.54 OpenGL core profile shading language version string: 4.60 NVIDIA OpenGL version string: 4.6.0 NVIDIA 396.54 OpenGL shading language version string: 4.60 NVIDIA and afterwards, the nvidia card is turned off: $ cat /sys/bus/pci/devices/0000\:01\:00.0/power/runtime_status suspended This works even after a suspend/resume cycle. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: bumblebee 3.2.1-17 [modified: usr/bin/bumblebee-bugreport usr/bin/optirun usr/sbin/bumblebeed usr/share/doc/bumblebee/README.markdown] Uname: Linux 4.19.0-041900rc3-generic x86_64 ApportVersion: 2.20.10-0ubuntu9 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Sep 11 13:30:22 2018 InstallationDate: Installed on 2017-08-16 (390 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) SourcePackage: bumblebee UpgradeStatus: Upgraded to cosmic on 2018-08-15 (26 days ago) mtime.conffile..etc.bumblebee.bumblebee.conf: 2018-09-10T12:33:56.368908 mtime.conffile..etc.bumblebee.xorg.conf.nvidia: 2018-09-10T12:33:56.368908 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bumblebee/+bug/1791883/+subscriptions -- Mailing list: https://launchpad.net/~bumblebee Post to : bumblebee@lists.launchpad.net Unsubscribe : https://launchpad.net/~bumblebee More help : https://help.launchpad.net/ListHelp
