Alberto wrote: > > Please file a bug report against bbswitch. Hamish wrote: > submitted as launchpad bug #1338404
on that ticket, Peter Wu wrote: > bbswitch is a module for Optimus laptops, not desktops (except an > odd, single all-in-one). The i7-3770 is a desktop processor, so > bbswitch will not work here. and closed it as invalid. (fair enough) I guess the bbswitch package should be removed from this system which does not have the target hardware. (in that case nvidia-prime would need to be removed too since it's a dependency) `nvidia-settings` still fails with: """ ** Message: PRIME: Requires offloading ** Message: PRIME: is it supported? yes ERROR: """ any hints on what to try next? Or am I barking up the wrong tree here? Is PRIME solely meant for switching between video cards A and B for power/perfomance switching on a laptop, instead of having video cards A and B running at the same time as part of a multi-head desktop workstation setup like I'm trying to do? even if so, more than a blank error message would be nice to save us all some time. ah, perhaps a clue to my confusion: The X/Config/HybridGraphics page in the Ubuntu Wiki does not define what "hybrid" means, and indicates that nvidia-prime is the right thing to use for multihead workstations with both integrated and discrete video, at least by my reading of the introduction. (I'd also note the wiki is out of date with respect to the nvidia-common package, which has now been replaced and is just a wrapper package depending on the new package name) https://wiki.ubuntu.com/X/Config/HybridGraphics Digging deeper, an older wiki page is mentioning laptops specifically wrt "hybrid", so in that light makes some sense. https://help.ubuntu.com/community/HybridGraphics If this isn't the right venue, any tips on where I should go from here? Would I be best to follow up on this error from X.log.0? [ 18.653] (II) LoadModule: "nvidia" [ 18.653] (WW) Warning, couldn't open module nvidia [ 18.653] (II) UnloadModule: "nvidia" [ 18.653] (II) Unloading nvidia [ 18.653] (EE) Failed to load module "nvidia" (module does not exist, 0) thanks for all your help, Hamish -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1310023 Title: 14.04: Nvidia Prime is unable to switch to the Nvidia card Status in “nvidia-prime” package in Ubuntu: Fix Released Status in “ubuntu-drivers-common” package in Ubuntu: Fix Released Status in “ubuntu-drivers-common” source package in Trusty: Fix Committed Bug description: SRU Request On some systems bbswitch requires the "skip_optimus_dsm=1" option in order to load properly. So far we have dealt with this problem with system specific quirks based on DMI information. This some times gives us false positives or doesn't cover all systems (it's hard to quirk all systems). We should simply try with and without that option and use whatever works best for the system. This should cover all cases with no need for additional quirks. [Impact] * Loading bbswitch with the wrong option causes the module to fail from loading which, in turn, prevents hybrid graphics from working properly. [Test Case] * Install the nvidia binary driver, reboot, and check that the NVIDIA GPU is enabled (attach your /var/log/gpu-manager.log) - Expected: the NVIDIA GPU is enabled. - Bad behavior: the system switches back to the intel driver and the NVIDIA GPU is not used. [Regression Potential] * Low. Systems that currently work will keep working as usual, the ones that currently fail should finally work. [Other Info] * N/A -- I did a fresh install of 14.04 the day it was released. I use a XPS 15z laptop form Dell with hybrid graphics (Intel HD 3000 (probably) and Nvidia Geforce GT 525M). Booting doesn't work out of the box, but by setting GRUB_CMDLINE_LINUX_DEFAULT="acpi_backlight=vendor dell_laptop.backlight=0 quiet splash" in /etc/default/grub it works. acpi=off when installing, removed that from the grub file when installed. I expected that the Prime feature introduced in kernel 3.12 (kernel 3.13.x here) would let me switch between the Intel and Nvidia cards as i like, instead of using Bumblebee, which doesn't work properly with everything. I've installed and tried both the nvidia-331 and nvidia-304 drivers. Exactly the same result from both. Attempting to switch to the Nvidia card in nvidia-settings (tried on almost all of the drivers available, including 331.38) resulted in an error message, in a new window, with no text. prime-switch in terminal gives this output: Segmentation fault (core dumped) Sudoing the process gives no output at all. No graphical performance boost either, still the Intel card... sudo prime-select nvidia gives this output: Error: alternatives are not set up properly Error: nvidia mode can't be enabled I've also tried Bumblebee (not PPA) a few times, but it's also unable to switch. I'm able to use the Intel card temporary, but I would really like to be able to use the full power of my computer... ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: nvidia-prime 0.6.2 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 CurrentDesktop: Unity Date: Sat Apr 19 20:52:42 2014 InstallationDate: Installed on 2014-04-17 (1 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) SourcePackage: nvidia-prime UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1310023/+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
