On Sat, 2016-11-19 at 16:02 +0800, Toni Mueller wrote: > > Hi Adrian, > > > On Sun, Oct 23, 2016 at 10:41:57AM +0300, Adrian Bunk wrote: > > Control: reassign -1 src:linux > > > > On Sun, Oct 23, 2016 at 06:57:53AM +0800, Toni Mueller wrote: > > > Package: upgrade-reports > > > Severity: important > > > > > recently, I felt the need to upgrade my XPS 13 laptop (2013 model?) from > > > Jessie to Stretch, but have not had any sound ever since. > > > > > > To be more precise, I had no sound ever after trying the 4.7 backported > > > kernel on Jessie, which was what originally prompted me to upgrade to > > > Stretch. > > > ... > > > > thanks for your report. > > > > This sounds like a bug in the kernel, I'm moving it there. > > in the meantime, the problem was resolved. Short story: After booting > the 4.x kernel for the first time, sound disappeared. I recently did a > factory reset in the BIOS, and sound re-appeared. > > So yes, at this point, I also suspect that there is some problem with > the kernel, but why this seemingly happens only on upgrade, I don't > know. Perhaps it depends on whether you reboot or start from power-off? Ben. -- Ben Hutchings Any sufficiently advanced bug is indistinguishable from a feature.
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