** Tags added: precise -- 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/1282796
Title: prime-xconfig can write an invalid BusID string Status in “nvidia-prime” package in Ubuntu: Fix Released Status in “nvidia-prime” source package in Precise: In Progress Bug description: SRU request: Please accept nvidia-prime (0.5~hybrid0.0.3) into precise-proposed. [Rationale] The fix . [Impact] Without this work, X will fail to start in some cases (see the "Full Explanation" section) on systems with hybrid graphics (Intel/NVIDIA). [Test Case] 1) Install the update on a hybrid system with Intel/NVIDIA GPUs 2) Make sure that the system can boot and that X doesn't fail. [Regression Potential] Low. Thanks to this fix, the xorg.conf, if anything, will have greater chances to work. [Full Explanation] The BusID string created by prime-xconfig could be incorrect in any of the following cases: a) Any numeric component of the bus ID is greater than 9: prime-xconfig will write a hexadecimal value, but X will parse it as decimal. b) The system has more than one PCI domain: `lspci -n` will show the PCI domain, which is normally hidden on systems with a single PCI domain. This breaks the formatting assumptions made by nv_get_id() about which fields are in which position. Besides the potential correctness issues, the generated BusID string is missing the following recommended (but optional) information: a) Bus type. According to xorg.conf(5) this should be "PCI:" b) PCI domain: omission of this field could lead to problems on systems with multiple PCI domains A patch against nvidia-prime 0.5.5 from Trusty is attached. The version on github seems to be behind that version by quite a bit. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1282796/+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
