#linux-amlogic on 2020-07-20 — irc logs at freenode.irclog.whitequark.org

2018-08-07 06:55 narmstrong changed the topic of #linux-amlogic to: Amlogic mainline kernel development discussion - our wiki http://linux-meson.com/ - ml linux-amlogic@lists.infradead.org - Publicly Logged on https://irclog.whitequark.org/linux-amlogic

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07:45 <armoon> chewitt hello

07:46 <chewitt> Hello Anand

07:49 <armoon> Yes I tried to your audio series on my odroid C2 and odroid c4

07:49 <armoon> on odroid c2

07:49 <armoon> [alarm@archl-c2s ~]$ dmesg | grep gx-sound-card

07:49 <armoon> sound failed with error -22

07:50 <chewitt> which kernel, and can you share the full dmesg

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07:51 <armoon> ok

07:51 <armoon> just give me some time

07:51 <chewitt> If using 5.7 .. this needs reverting https://github.com/chewitt/linux/commit/6b950b0b14bcc7a70286e5be242011743610350a

07:52 <armoon> ok cool thanks for this update

07:53 <armoon> I am using 5.8.0-rc5

07:53 <chewitt> I'm still mostly working in 5.7

07:54 <chewitt> but most of my 5.7 branch is stuff backported from 5.8

07:59 <armoon> ok I will give this a try on 5.7.x stable branch as well

08:01 <armoon> On C4 I was not able to get audio out of HDMI port

08:01 <armoon> [ 6.971780] axg-sound-card sound: snd-soc-dummy-dai <-> ff6601c0.audio-controller mapping ok

08:01 <armoon> mapping ok

08:01 <armoon> ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

08:01 <armoon> device 1: fe.dai-link-1 (*) []

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08:09 <chewitt> I did a quick look through the commits in the branch

08:09 <chewitt> there's a couple of things I picked from jbrunet for G12 but nothing harmless

08:09 <chewitt> s/harmless/meaningful

08:10 <chewitt> for all devices you'll need to set mixer properties

08:11 <chewitt> and alsa confs

08:11 <chewitt> https://github.com/chewitt/alsa-lib/commit/438595ec2740093592e1a2d61b4a48a608708542

08:11 <chewitt> https://github.com/chewitt/alsa-lib/commit/f0a36d757274c750832a24c418ccedfa1cea5133

08:11 <chewitt> https://github.com/chewitt/alsa-lib/commit/1192b91c7ddde1d56f2c0e7e7c877bcfb82480fe

08:12 <chewitt> and https://github.com/chewitt/LibreELEC.tv/blob/amlogic/packages/audio/alsa-utils/scripts/soundconfig#L131

08:14 <armoon> ok thanks for this inputs

08:17 <armoon> so I have to build alsa-lib package on my system

09:02 <chewitt> no, the alsa-lib changes are just text files so on a distro with conventional packaging you can just edit/add the files as needed and reboot

09:02 <chewitt> only on a fixed-function OS like LE you'd need to compile things in

09:12 <chewitt> and the alsa-utils bit is just mixer settings, you can apply them from the console

09:15 <armoon> ok I have archlinux setup at my end so I will have to check this out. Thanks for your inputs

09:24 <narmstrong> Tonymac32: can you get a picture of the green line of your screen and the hdmi more you’re using ?

09:48 <chewitt> narmstrong pick an image https://chewitt.libreelec.tv/testing/9.80/ they all have the issue

09:49 <narmstrong> chewitt: I never saw the green line, so it must appear only on some TVs/monitors and specific HDMI modes

09:50 <chewitt> I see it on the 10" LCD that I use for testing .. this is 1080p60

09:50 <chewitt> I don't see it on the 4K LG .. but I can't guarantee this is just off-screen

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15:01 <l-as> is there supposed to be a /dev/video0 or something for hardware video decoding?

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15:49 <Tonymac32> chewitt: so I'm not going crazy then. narmstrong: same experience, I get it on 1080p60, at 4K my display does not seem to suffer.

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17:23 <chewitt> some months back Jernej Skrabec posted some v1 patches to the media tree which accidentally fixed it

17:24 <chewitt> but some rework was requested and the v2 patches un-fixed it

17:24 <chewitt> and now I can't spot the patches

17:25 <chewitt> and LE Slack is on the free plan so past convo is beyond the 100k messages visible buffer

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19:02 <narmstrong> Tonymac32: chewitt: it’s not unusual since TVs eats some pixels on borders unlike monitors

19:02 <narmstrong> chewitt: it’s really weird something on media fixed it...

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