| Message ID | 20200915035132.7731-1-hui.wang@canonical.com |
|---|---|
| Headers | show |
| Series | alsa/hdmi: the hdmi audio stops working from Ubuntu-4.4.0-155.182 | expand |
On 15.09.20 05:51, Hui Wang wrote: > BugLink: https://bugs.launchpad.net/bugs/1895603 > > [Impact] > We had a Dell machine, this machine was enabled with ubuntu 4.4 > kernel before, but recently the hdmi audio on this machine stopped > working with the latest ubuntu 4.4. kernel. The system can't detect > its plugging and can't output sound to it anymore. > > [Fix] > This is because we backported a patch from stable updates, and that > patch is for v5.2 kernel, if we backported it to 4.4 kernel, we need > to do some change, and also we need to backport one more patch from > stabe kernel. > > [Test Case] > Connect a monitor to the machine and boot up, after booting up, we > could see the hdmi audio is found, and play sound to the hdmi audio, > we could hear the sound from monitor. > > > [Regression Risk] > It is possible to make the hdmi audio fail to work after applying this > patchset, like the hdmi audio can't be detected after plugging a hdmi > monitor. But this possibility is very low, we tested the patchset on > many dell and lenovo machines, all worked well. > > Hui Wang (2): > ALSA: hda/hdmi - Read the pin sense from register when repolling > UBUNTU: SAUNCE: ALSA: hda/hdmi - Check pin_eld->monitor_present > > sound/pci/hda/patch_hdmi.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > Hi Hui, Have you sent this fixup for the linux-stable 4.4.y? There's a typo on patch 2/2, it should be "SAUCE". This can be fixed when applying. Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com> Thanks.
On 2020/9/15 下午6:03, Kleber Souza wrote: > On 15.09.20 05:51, Hui Wang wrote: >> BugLink: https://bugs.launchpad.net/bugs/1895603 >> >> [Impact] >> We had a Dell machine, this machine was enabled with ubuntu 4.4 >> kernel before, but recently the hdmi audio on this machine stopped >> working with the latest ubuntu 4.4. kernel. The system can't detect >> its plugging and can't output sound to it anymore. >> >> [Fix] >> This is because we backported a patch from stable updates, and that >> patch is for v5.2 kernel, if we backported it to 4.4 kernel, we need >> to do some change, and also we need to backport one more patch from >> stabe kernel. >> >> [Test Case] >> Connect a monitor to the machine and boot up, after booting up, we >> could see the hdmi audio is found, and play sound to the hdmi audio, >> we could hear the sound from monitor. >> >> >> [Regression Risk] >> It is possible to make the hdmi audio fail to work after applying this >> patchset, like the hdmi audio can't be detected after plugging a hdmi >> monitor. But this possibility is very low, we tested the patchset on >> many dell and lenovo machines, all worked well. >> >> Hui Wang (2): >> ALSA: hda/hdmi - Read the pin sense from register when repolling >> UBUNTU: SAUNCE: ALSA: hda/hdmi - Check pin_eld->monitor_present >> >> sound/pci/hda/patch_hdmi.c | 8 +++++++- >> 1 file changed, 7 insertions(+), 1 deletion(-) >> > Hi Hui, > > Have you sent this fixup for the linux-stable 4.4.y? OK, I will check linux-stable 4.4.y and send the patchset to it. > > > There's a typo on patch 2/2, it should be "SAUCE". This can be > fixed when applying. Thanks. > Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com> > > > Thanks.
On 15.09.20 05:51, Hui Wang wrote: > BugLink: https://bugs.launchpad.net/bugs/1895603 > > [Impact] > We had a Dell machine, this machine was enabled with ubuntu 4.4 > kernel before, but recently the hdmi audio on this machine stopped > working with the latest ubuntu 4.4. kernel. The system can't detect > its plugging and can't output sound to it anymore. > > [Fix] > This is because we backported a patch from stable updates, and that > patch is for v5.2 kernel, if we backported it to 4.4 kernel, we need > to do some change, and also we need to backport one more patch from > stabe kernel. > > [Test Case] > Connect a monitor to the machine and boot up, after booting up, we > could see the hdmi audio is found, and play sound to the hdmi audio, > we could hear the sound from monitor. > > > [Regression Risk] > It is possible to make the hdmi audio fail to work after applying this > patchset, like the hdmi audio can't be detected after plugging a hdmi > monitor. But this possibility is very low, we tested the patchset on > many dell and lenovo machines, all worked well. > > Hui Wang (2): > ALSA: hda/hdmi - Read the pin sense from register when repolling > UBUNTU: SAUNCE: ALSA: hda/hdmi - Check pin_eld->monitor_present > > sound/pci/hda/patch_hdmi.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > Acked-by: Stefan Bader <stefan.bader@canonical.com>
On Tue, Sep 15, 2020 at 11:51:30AM +0800, Hui Wang wrote: > BugLink: https://bugs.launchpad.net/bugs/1895603 > > [Impact] > We had a Dell machine, this machine was enabled with ubuntu 4.4 > kernel before, but recently the hdmi audio on this machine stopped > working with the latest ubuntu 4.4. kernel. The system can't detect > its plugging and can't output sound to it anymore. > > [Fix] > This is because we backported a patch from stable updates, and that > patch is for v5.2 kernel, if we backported it to 4.4 kernel, we need > to do some change, and also we need to backport one more patch from > stabe kernel. > > [Test Case] > Connect a monitor to the machine and boot up, after booting up, we > could see the hdmi audio is found, and play sound to the hdmi audio, > we could hear the sound from monitor. > > > [Regression Risk] > It is possible to make the hdmi audio fail to work after applying this > patchset, like the hdmi audio can't be detected after plugging a hdmi > monitor. But this possibility is very low, we tested the patchset on > many dell and lenovo machines, all worked well. > > Hui Wang (2): > ALSA: hda/hdmi - Read the pin sense from register when repolling > UBUNTU: SAUNCE: ALSA: hda/hdmi - Check pin_eld->monitor_present > > sound/pci/hda/patch_hdmi.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > -- > 2.17.1 Applied to Xenial with "SAUCE" typo fixed. William Breathitt Gray