[+cc linux-pci] On Sat, Aug 2, 2014 at 10:02 AM, Shawn Starr <shawn.starr@xxxxxxxxxx> wrote: > Hello devs, > > There are two issues I am encountering with the PCIe Hotplug driver on my Lenovo Laptop (W500). I note this goes back further than 3.15. > > It is noted here: > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f244d8b623dae7a7bc695b0336f67729b95a9736 > https://bugzilla.kernel.org/show_bug.cgi?id=79701 > > And my open bug here: > https://bugzilla.kernel.org/show_bug.cgi?id=77261 > > 1) If I enable the device to use both the integrated and discrete GPU, pciehp will decide to force unload radeon because it puts itself into a power saving state, fails back to the Intel integrated GPU in this case unless I tell radeon.ko to runpm=0 (no power management, then pciehp wont touch it). > > 2) If the Radeon GPU resets and you use pci_reset=1 for kernel module option, pciehp decides to force unload radeon even though the GPU is trying to setup after failing. > > Kernel I am using right now: 3.16.0-0.rc7.git3.1.fc21.x86_64 (about to boot into snapshot kernel-core-3.16.0-0.rc7.git4.1.fc21.x86_64) Hi Shawn, Thanks for the report and sorry that it got dropped. But I see you're cc'd on https://bugzilla.kernel.org/show_bug.cgi?id=79701, so you've probably seen the work there. If you can try out the patches I just posted, that would be great. Bjorn -- 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
