On Fri, Jul 15, 2016 at 9:12 AM, Peter Wu <peter@xxxxxxxxxxxxx> wrote: > Hi, > > Here are two patches to fix an issue reported on kernel bugzilla (infinite loop > due to unchecked function) and a more important fix to fix hanging Optimus > machines when runtime PM is enabled (with pm/pci patches). > > These are the final patches targeting v4.8. Changes compared to v2[1]: > collected R-b from Hans and Mika and fixed a minor comment style issue. > > I recommend it to be merged before the pci/pm patches[2], otherwise there is a > window where newer Nvidia Optimus laptops might fail to runtime resume and/or > lock up. Once the pci/pm branch is merged I will propose another patch to > improve reliability[3]. > > Known issue with patch 4: when a Nvidia HDMI audio function is present, the > bridge will not suspend and hence the Nvidia card will still be powered. Fixing That's basically all optimus gpu's, right? Anything GT21x+ has a HDMI audio subfunction, and prior to that, the nvidia gpu tended to be the only gpu, or hard-muxed. If that's the case, that's pretty much a non-starter, IMO. -ilia -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
