On 11/07/2012 09:36 AM, Takashi Iwai wrote: > At Wed, 7 Nov 2012 09:22:33 +0100, > David Henningsson wrote: >> >> On some of the PantherPoint HDMI machines we currently enable, we're seeing >> trouble with unsol events, i e detecting monitor presence, especially when >> on battery and after suspend/resume. >> >> BugLink: https://bugs.launchpad.net/bugs/1075882 >> Tested-by: Cyrus Lien <cyrus.l...@canonical.com> >> Signed-off-by: David Henningsson <david.hennings...@canonical.com> >> --- >> sound/pci/hda/patch_hdmi.c | 8 ++++++-- >> 1 file changed, 6 insertions(+), 2 deletions(-) >> >> So far this is the workaround we have found to be working. Sometimes, it also >> seems that "cat /proc/asound/cardx/codec#x" can also make the HDMI unsol >> event >> trigger, so that the problem fixes itself. >> >> We have not run any battery life tests to see if this causes more power >> consumption. > > Looks safe at least, so I applied to for-next branch to give more > testing. If you find a better solution, let me know.
Jesse has now done a battery life test, both for idle machine and S3 machine, and both with HDMI connected and HDMI unconnected. All differences in power consumption were within error margins. Given that, should we consider sending this patch to stable? -- David Henningsson, Canonical Ltd. https://launchpad.net/~diwic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1075882 Title: PantherPoint HDMI - jack detection broken after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1075882/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
