On 12/12/11 11:00, Thomas Renninger wrote:
On Monday, December 12, 2011 02:50:49 AM Cristian Rodríguez wrote:
On 11/12/11 22:46, Thomas Renninger wrote:
commit c1c0cfd66da3cd5dd779d0fb24384fa497488ea7 Author: Thomas Renninger<trenn@suse.de> Date: Mon Dec 12 02:34:32 2011 +0100
x86, x2apic: Enable the bios request for x2apic optout. Thomas
Ok, thank you :-) but after some extra testing, only when either noapic or acpi=noirq is used the machine *works* reliable, it boots correctly with nox2apic but after a few minutes the wifi adapter hangs with backtrace posted earlier.
Quick googling revealed: New Dell XPS 15z (L511z) Wireless Card Issues http://en.community.dell.com/support-forums/laptop/f/3518/p/19382502/2000021...
Yes, I hitted this as well :-| however, there is a practical workaround, when on baterry iwconfig power off fixes it, the curious thing is that I cannot reproduce it all the time, it happends "sometimes".
and: https://wiki.ubuntu.com/HardwareSupport/Machines/Laptops/Dell/XPS/15z#Wirele... there they state wireless working, maybe it's the additional pcie_aspm param: pcie_aspm=force acpi=noirq i915.semaphores=1
The problem on using pci_aspm=force is that it has no effect: [ 0.514920] _SB_.PCI0:_OSC invalid UUID [ 0.514921] _OSC request data:1 1f 1f [ 0.514924] pci0000:00: Requesting ACPI _OSC control (0x1d) [ 0.514962] _SB_.PCI0:_OSC invalid UUID [ 0.514963] _OSC request data:1 0 1d [ 0.514966] pci0000:00: ACPI _OSC request failed (AE_ERROR), returned control mask: 0x1d [ 0.514969] ACPI _OSC control for PCIe not granted, disabling ASPM -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org