On Thu, Jul 5, 2018 at 5:37 PM, Jani Nikula <jani.nikula@xxxxxxxxx> wrote: > On Thu, 05 Jul 2018, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: >> Quoting Jani Nikula (2018-07-05 09:58:57) >>> On Thu, 05 Jul 2018, Chris Chiu <chiu@xxxxxxxxxxxx> wrote: >>> > Hi, >>> > We have few ASUS laptops X705FD (The new WiskyLake), X560UD (intel >>> > i5-8250U), X530UN (intel i7-8550U) share the same problem, which is >>> > the HDMI connector status stays connected even the HDMI cable has been >>> > unplugged. Look into the "/sys/class/drm/card0-HDMI-A-1/status" for >>> > checking the status while plug/unplug the HDMI, it shows >>> > "disconnected" before plug in HDMI cable, then switch to "connected" >>> > after plugin, and still stay "connected" after unplug. This would >>> > cause the audio output path cannot correctly switch from HDMI to >>> > internal speaker after unplugging the HDMI. >>> > >>> > I then try to verify with the latest kernel 4.18.0-rc3+, the bug still >>> > present. The full "dmesg" log is here. >>> > https://gist.github.com/mschiu77/d761d7c5cf191b7868d4d7788ae087f1 >>> > >>> > The HDMI cable is plugged in at ~26th second. >>> > "[ 26.214371] [drm:drm_detect_monitor_audio [drm]] Monitor has basic >>> > audio support" >>> > then unplug the HDMI at ~73th second. >>> > "[ 73.328361] [drm:drm_detect_monitor_audio [drm]] Monitor has basic >>> > audio support" >>> > >>> > Please advise what I can do to fix this. Thanks >>> >>> Seems rather odd. Please file a bug report at [1]. Attach the dmesg on >>> the bug. Please attach 'xrandr --verbose' output before and after >>> unplugging on the bug. >> >> Note that 'xrandr --verbose' will trigger a reprobe of the devices, >> papering over any missed probe following hotplug. I would suggest >> preceding with 'xrandr --current --verbose'. >> >> If all you are doing is checking status, you need to 'echo detect > >> status' to trigger a reprobe after hotplug. It's interesting that reprobe triggered by 'xrandr --verbose' after unplug will get the status back to "disconnected". But if I just do 'xrandr --current --verbose' before and after unplugging the cable, the output shows the same status 'connected'. Here's the output of 'xrandr --verbose' before unplugging HDMI https://gist.github.com/mschiu77/ea2e843078297f344596243418dcdaf7 And the output of 'xrandr --current --verbose' after unplugging the cable https://gist.github.com/mschiu77/55756c0801046d49cd9bc3f87712b079 Then do 'xrandr --current --verbose' to trigger reprobe, the ouput https://gist.github.com/mschiu77/72e6ab5438cbe64443300fc4fd71770c It means that the HDMI unplug not detected by the driver? Chris > > I was curious about the logs seemingly indicating that we can read the > EDID even after the user says they've unplugged the cable. The updating > of sysfs status attribute is another matter. > > BR, > Jani. > > > -- > Jani Nikula, Intel Open Source Graphics Center _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
