This bug also appears on Acer Aspire E15 Laptops (E5-511-P7AT) and (E5-511-P01P) on 14.04.3 Trusty with kernel 3.19.0-28.
If dw_dmac and dw_dmac_core are not blacklisted, everytime on Shut Down or Reboot comes a black screen and the fan starts spinning like crazy every +-20 seconds, but the machine doesn't shut down or reboot. I hope this issue will be fixed for the next LTS 16.04 ? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1501580 Title: Workaround for dw_dmac causing random hang when booting Status in HWE Next: New Status in linux package in Ubuntu: Incomplete Status in linux source package in Vivid: Fix Released Bug description: On HP X360, we've found dw_dmac hangs system when booting with very high fail rate (~80%). System can not turn power off when shutting down either if dw_dmac is loaded. The maintainer from Intel is proposing a patch to fix this issue, but won't be available until 4.3 or 4.4, and there're users already hit this problem[1], so we proposed a temporarily workaround to skip probing in dw_dmac by returning -ENODEV directly if DMI_PRODUCT_NAME matches HP X360 before the fix is ready. [1]: https://bugzilla.kernel.org/show_bug.cgi?id=101271 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1501580/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
