Subject: v4.18-rc2 on droid4: screen turns red

From: [email-masked] (Pavel Machek)
Date: Wed, 11 Jul 2018 12:26:55 +0200

Hi!

> After longer inactivity, attempt to wake up the screen results in
> screen being completely red. Not too useful. I can still connect over
> ssh.

Still there in -rc4 :-(. But happens only once in a few days for me...

When X is shut down, text console works ok.
      	       	    	     	     	       	    	Pavel
> 
> This happens all the time:
> 
> Jun 30 11:34:08 devuan kernel: [  143.605499] ------------[ cut here
> ]------------
> Jun 30 11:34:08 devuan kernel: [  143.610168] WARNING: CPU: 1 PID:
> 2220 at drivers/gpu/drm/omapdrm/
> dss/hdmi4.c:667 hdmi_audio_stop+0x5c/0x68
> Jun 30 11:34:08 devuan kernel: [  143.619873] Modules linked in:
> Jun 30 11:34:08 devuan kernel: [  143.622955] CPU: 1 PID: 2220 Comm:
> pulseaudio Not tainted 4.18.0-
> rc2-88315-g3452793-dirty #756
> Jun 30 11:34:08 devuan kernel: [  143.631591] Hardware name: Generic
> OMAP4 (Flattened Device Tree)
> Jun 30 11:34:08 devuan kernel: [  143.637634] [<c010f6cc>]
> (unwind_backtrace) from [<c010ba50>] (sh
> ow_stack+0x10/0x14)
> Jun 30 11:34:08 devuan kernel: [  143.645446] [<c010ba50>]
> (show_stack) from [<c086d7ec>] (dump_sta
> ck+0x8c/0xac)
> Jun 30 11:34:08 devuan kernel: [  143.652740] [<c086d7ec>]
> (dump_stack) from [<c012d364>] (__warn+0
> xe8/0x114)
> Jun 30 11:34:08 devuan kernel: [  143.659729] [<c012d364>] (__warn)
> from [<c012d3cc>] (warn_slowpath_null+0x3c/0x48)
> Jun 30 11:34:08 devuan kernel: [  143.667358] [<c012d3cc>]
> (warn_slowpath_null) from [<c047b7dc>] (hdmi_audio_stop+0x5c/0x68)
> Jun 30 11:34:08 devuan kernel: [  143.675750] [<c047b7dc>]
> (hdmi_audio_stop) from [<c06a9824>] (hdmi_dai_trigger+0x6c/0x88)
> Jun 30 11:34:08 devuan kernel: [  143.683990] [<c06a9824>]
> (hdmi_dai_trigger) from [<c06990d0>] (soc_pcm_trigger+0xf0/0x130)
> Jun 30 11:34:08 devuan kernel: [  143.692291] [<c06990d0>]
> (soc_pcm_trigger) from [<c067a9f4>] (snd_pcm_do_stop+0x54/0x58)
> Jun 30 11:34:08 devuan kernel: [  143.700439] [<c067a9f4>]
> (snd_pcm_do_stop) from [<c067a7a4>] (snd_pcm_action_single+0x38/0x78)
> Jun 30 11:34:08 devuan kernel: [  143.709075] [<c067a7a4>]
> (snd_pcm_action_single) from [<c067c468>] (snd_pcm_drop+0x48/0x94)
> Jun 30 11:34:08 devuan kernel: [  143.717468] [<c067c468>]
> (snd_pcm_drop) from [<c067d508>] (snd_pcm_ioctl+0x870/0x1180)
> Jun 30 11:34:08 devuan kernel: [  143.725433] [<c067d508>]
> (snd_pcm_ioctl) from [<c0215944>] (do_vfs_ioctl+0x80/0x960)
> Jun 30 11:34:08 devuan kernel: [  143.733215] [<c0215944>]
> (do_vfs_ioctl) from [<c0216280>] (ksys_ioctl+0x5c/0x80)
> Jun 30 11:34:08 devuan kernel: [  143.740661] [<c0216280>]
> (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x54)
> Jun 30 11:34:08 devuan kernel: [  143.748352] Exception
> stack(0xeb8fffa8 to 0xeb8ffff0)
> Jun 30 11:34:08 devuan kernel: [  143.753448] ffa0:
> 005129b0 b1971394 00000015 00004143 00000000 00512960
> 
> 
> This is probably unrelated:
> 
> [13215.125732] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host
> [13245.205535] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host
> [13252.969940] power_supply battery: driver failed to report
> `power_now' property: -22
> [13275.285369] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host
> [13291.993652] Charging, 4350000 uV, 532000 uA
> [13292.001708] Charging, 4350000 uV, 532000 uA
> [13305.364837] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host
> [13335.445037] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host
> [13365.524291] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host
> [13372.940093] power_supply battery: driver failed to report
> `power_now' property: -22
> [13383.554412] g_ether gadget: packet filter 0e
> [13383.558715] g_ether gadget: ecm req21.43 v000e i0000 l0
> [13383.580261] g_ether gadget: notify connect true
> [13383.612243] g_ether gadget: notify speed 425984000
> [13387.213256] cpcap_adc cpcap_adc.0: error reading ADC: -110
> [13387.218780] cpcap_battery cpcap_battery.0:
> cpcap_battery_get_voltage failed: -110
> [13387.523254] cpcap_adc cpcap_adc.0: error reading ADC: -110
> [13387.528778] cpcap_battery cpcap_battery.0:
> cpcap_battery_get_current failed: -110
> 
> Ideas welcome.
> 
> Best regards,
> 							Pavel
> 

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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