On 05/11/2015 01:26 PM, Dominik Brodowski wrote:
Hi, (CC'ing sound experts) indeed, commit b1ef29725865 causes a severe regression -- actually, it causes sound to be totally unusuable on the Dell XPS 13 (2015) on Debian jessie, while it works fine in 4.0 / with b1ef29725865 reverted. According to an off-list discussion, the sound breakage (and not just some jack detection issue) seems to be caused due to alsa-lib being too old. The matter is further complicated by the issue that the driver asks for some firmware blob intel/IntcPP01.bin which (at least) I cannot find anywhere. Under the no-regression rule, this means that either b1ef29725865 needs to be reverted or we need to find another solution to this matter, such as an override. And I think it is needed for longer than just for 4.1, as it will continue to be cause regressions on quite recent userspace. Best, Dominik PS/OT: Probably I'm preaching to the choir, but @Mario: it's a pity the XPS (or some versions of it) with pre-installed Ubuntu actually ships with a Wifi adapter which seems to be unsupported by upstream Linux...
Dominik, Yes I've noticed it's acting much worse for me too with 4.1-rc2 on Ubuntu 15.04 userspace (which is quite new indeed). I really think the right solution is some sort of quirk against the XPS 13 on the _REV behavior until this is reasonably mature. OT: Yes, this feedback has been taken to heart by the team. We're working on adding more variants with alternate adapters. :) -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
