With my new Thinkpad (6th gen), I can hear CPU load as noise in the headphones. (Like, if I do something like "find /", the noise directly corresponds to the work being done.)
I found this over on the Arch forums https://bbs.archlinux.org/viewtopic.php?pid=1824636#p1824636
sudo hda-verb /dev/snd/hwC0D0 0x1d SET_PIN_WIDGET_CONTROL 0x0
and, indeed, that fixes the issue until next boot.
I'd like to file a bug but I'm not actually sure where to file it (kernel? something in alsa?). And I'm also not sure if the above is really a fix or just a kludge. Suggestions?
On Wed, Feb 13, 2019 at 5:29 PM Matthew Miller mattdm@fedoraproject.org wrote:
With my new Thinkpad (6th gen), I can hear CPU load as noise in the headphones. (Like, if I do something like "find /", the noise directly corresponds to the work being done.)
I found this over on the Arch forums https://bbs.archlinux.org/viewtopic.php?pid=1824636#p1824636
sudo hda-verb /dev/snd/hwC0D0 0x1d SET_PIN_WIDGET_CONTROL 0x0
and, indeed, that fixes the issue until next boot.
I'd like to file a bug but I'm not actually sure where to file it (kernel? something in alsa?). And I'm also not sure if the above is really a fix or just a kludge. Suggestions?
Based on a previous issue, where I had to retask pins in order to get the microphone to work, I'd say the kernel.
On Wed, Feb 13, 2019 at 4:29 PM Matthew Miller mattdm@fedoraproject.org wrote:
With my new Thinkpad (6th gen), I can hear CPU load as noise in the headphones. (Like, if I do something like "find /", the noise directly corresponds to the work being done.)
I found this over on the Arch forums https://bbs.archlinux.org/viewtopic.php?pid=1824636#p1824636
sudo hda-verb /dev/snd/hwC0D0 0x1d SET_PIN_WIDGET_CONTROL 0x0
and, indeed, that fixes the issue until next boot.
I'd like to file a bug but I'm not actually sure where to file it (kernel? something in alsa?). And I'm also not sure if the above is really a fix or just a kludge. Suggestions?
I bet it's a quirk that needs to be set for a driver or codec in the kernel.
P
On 2/13/19 11:27 AM, Matthew Miller wrote:
With my new Thinkpad (6th gen), I can hear CPU load as noise in the headphones. (Like, if I do something like "find /", the noise directly corresponds to the work being done.)
I found this over on the Arch forums https://bbs.archlinux.org/viewtopic.php?pid=1824636#p1824636
sudo hda-verb /dev/snd/hwC0D0 0x1d SET_PIN_WIDGET_CONTROL 0x0
and, indeed, that fixes the issue until next boot.
I'd like to file a bug but I'm not actually sure where to file it (kernel? something in alsa?). And I'm also not sure if the above is really a fix or just a kludge. Suggestions?
Sounds like (heh) https://bugzilla.redhat.com/show_bug.cgi?id=1660581 perhaps? It also looks like there's a proposed patch on the Ubuntu bug, but I don't see it submitted upstream. I'll do some more digging and post whatever I find on that bug.
On Wed, Feb 13, 2019 at 05:55:15PM +0000, Jeremy Cline wrote:
sudo hda-verb /dev/snd/hwC0D0 0x1d SET_PIN_WIDGET_CONTROL 0x0
Sounds like (heh) https://bugzilla.redhat.com/show_bug.cgi?id=1660581 perhaps? It also looks like there's a proposed patch on the Ubuntu bug, but I don't see it submitted upstream. I'll do some more digging and post whatever I find on that bug.
Thanks! I'll post the above work-around to the bug and follow for any progress.
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