[Issue][Miracast][CM11] Screen Mirroring broken or not working

sugarfoot1001 · Jan 6, 2014

I would like to find out if anyone else has been having problems getting the miracast casting to work on CyanogenMOD 11 (i.e. any official CM11 build for Nexus 4).

I would like to report that though mirroring works perfectly on the Kitkat Stock (even after you do a basic root), , when I do a clean flash of CM11 (including wiping all data), and try to cast, the phone seems to reset the established connection almost as soon as it is established; and then the access-point / SSID of the miracast device momentarily disappears from the list [ i.e. the list under Setting > Display (& Lighting) > Casting ].

By the way, I am using the Nexus 4 with Rocketfish's Miracast device (see here). Haven't tested this issue on any other phone/miracast-model combination. However, I did test all of the above on one other nexus 4 device and experienced the same issues.

I thought I'd post this issue up here to possibly expose it to someone (who knows someone... ) on the CM dev team, because I'm not sure what the channels of communication are to let them know directly (e.g. I believe we are not allowed to post issues for CM11 nightlies).

Thanks a Tonne in Advance!!

mariod84 · Jan 6, 2014

I also have the same problems with CM11 official on my Nexus 4 and my LG Smart TV 39LN575S: Miracast try to connect but not works.
I tried with Kitkat stock and it works.

Anyone can help us?

Thanks

elderap · Jan 7, 2014

Does not work on any custom ROM kk, unfortunately, must be some bug in Google because no developer could solve.

Enviado de meu Nexus 4 usando Tapatalk

sugarfoot1001 · Jan 7, 2014

elderap said:
Does not work on any custom ROM kk, unfortunately, must be some bug in Google because no developer could solve.

have they been able to at least narrow down what part of the ROM customization process breaks it?
E.g. deodexing, busybox some intefering apps/services

Also, is Miracast working fine on custom pre-Android4.4 roms such as CM10.. Each time I try to flash to CM10.x ("stable") to test this (even after a complete data wipe), It breaks my wifi [which I obviously need for miracast]?

elderap · Jan 7, 2014

sugarfoot1001 said:
have they been able to at least narrow down what part of the ROM customization process breaks it?
E.g. deodexing, busybox some intefering apps/services

Also, is Miracast working fine on custom pre-Android4.4 roms such as CM10.. Each time I try to flash to CM10.x ("stable") to test this (even after a complete data wipe), It breaks my wifi [which I obviously need for miracast]?

Over other versions of android, works 100% on all custom. The problem you're having with wifi is broken because of the baseband, you should is with a baseband kk, and they do not work in the previous version, change to 0.84, for example, that wifi will function normally.

sugarfoot1001 · Jan 7, 2014

elderap said:
Over other versions of android, works 100% on all custom. The problem you're having with wifi is broken because of the baseband, you should is with a baseband kk, and they do not work in the previous version, change to 0.84, for example, that wifi will function normally.

great that's very helpful!
Hopefully google is working to resolve this issue.

Seems to me that overall, not alot of attention is paid to miracast technology ever since it's integration onto the android platform.

mariod84 · Jan 8, 2014

I have basaband .98 and with last CM11 nightly Miracast don't works, instead with the same baseband and KK 4.4.2 stock it works.
I like much CM but I don't want lose a feature of my Nexus 4

sugarfoot1001 · Jan 8, 2014

mariod84 said:
I have basaband .98 and with last CM11 nightly Miracast don't works, instead with the same baseband and KK 4.4.2 stock it works.
I like much CM but I don't want lose a feature of my Nexus 4

I think what he means is changing the baseband only works on custom roms such as CM10, which are prior to android 4.4

s107ken · Jan 9, 2014

I'm tested cm-11-20140108-NIGHTLY-mako.zip.
adb logcat said,

E/DxHDCPModule(194): Opening HDCP library failed: dlopen failed: library "libDxHdcp.so" not found

pull "libDxHdcp.so" from KOT49H factory image, push "libDxHdcp.so" to CM11, but didn't solved this.

so I developed add a few Miracast options for AOSP including HDCP skipping, this morining build for CM11, tilapia and mako Miracast working on CM11.

attached 20140110_mira02_CM11_tilapia-update-signed.zip on next thread.
http://xdaforums.com/showpost.php?p=49265142&postcount=118
build target is tilapia(Nexus 7 2012 3G), but working on Nexus 4.

flash cm-11-20140108-NIGHTLY-mako.zip & 20140110_mira02_CM11_tilapia-update-signed.zip,
lauch Mira4U app, check Skip HDCP, goto Cast screen, *maybe* working :cyclops:

if Miracast worked on N4 after applied this patch, Netflix or other HDCP required contents maybe black screen.

mariod84 · Jan 11, 2014

s107ken said:
I'm tested cm-11-20140108-NIGHTLY-mako.zip.
adb logcat said,

pull "libDxHdcp.so" from KOT49H factory image, push "libDxHdcp.so" to CM11, but didn't solved this.

so I developed add a few Miracast options for AOSP including HDCP skipping, this morining build for CM11, tilapia and mako Miracast working on CM11.

attached 20140110_mira02_CM11_tilapia-update-signed.zip on next thread.
http://xdaforums.com/showpost.php?p=49265142&postcount=118
build target is tilapia(Nexus 7 2012 3G), but working on Nexus 4.

flash cm-11-20140108-NIGHTLY-mako.zip & 20140110_mira02_CM11_tilapia-update-signed.zip,
lauch Mira4U app, check Skip HDCP, goto Cast screen, *maybe* working :cyclops:

if Miracast worked on N4 after applied this patch, Netflix or other HDCP required contents maybe black screen.

Thanks!!! Now it works

sugarfoot1001 · Jan 13, 2014

mariod84 said:
Thanks!!! Now it works

I was unable to get this to work.

I got force closes and then when i wiped data. The rom worked but it's miracast still didn't work. Was there something I was supposed to do in addition, in order to get it all working??

Would you mind explaining the steps you took to get it to work on Nexus 4, since there's just too much information at the provided link that doesn't necessarily relate to nexus 4.

s107ken · Jan 14, 2014

sugarfoot1001 said:
I was unable to get this to work.

I got force closes and then when i wiped data. The rom worked but it's miracast still didn't work. Was there something I was supposed to do in addition, in order to get it all working??

Would you mind explaining the steps you took to get it to work on Nexus 4, since there's just too much information at the provided link that doesn't necessarily relate to nexus 4.

required
1) Nexus 4 CM11
2) 20140110_mira02_CM11_tilapia-update-signed.zip - applied to N4 using custom recovery
3) launch Mira4U app, check Skip HDCP
after this, standard way how to use miracast,
4) Settings -> Display -> Cast screen

BigMatza · Jan 15, 2014

s107ken said:
required
1) Nexus 4 CM11
2) 20140110_mira02_CM11_tilapia-update-signed.zip - applied to N4 using custom recovery
3) launch Mira4U app, check Skip HDCP
after this, standard way how to use miracast,
4) Settings -> Display -> Cast screen

Cheers s107ken. Have you been in touch with CM about including your fix in their source code? If so, please post an update here when you catch wind of the first CM11 nightly that includes it.

i8890321 · Feb 1, 2014

s107ken said:
required
1) Nexus 4 CM11
2) 20140110_mira02_CM11_tilapia-update-signed.zip - applied to N4 using custom recovery
3) launch Mira4U app, check Skip HDCP
after this, standard way how to use miracast,
4) Settings -> Display -> Cast screen

Does it work on other CM11 on other devices?
I am using Cm11 on Desire HD

erwinsie · Jul 27, 2014

i want to have cast screen on my note 2, can i flash your zip? thanks im with latest nightly CM11

Vioner · Nov 26, 2014

s107ken said:
I'm tested cm-11-20140108-NIGHTLY-mako.zip.
adb logcat said,

pull "libDxHdcp.so" from KOT49H factory image, push "libDxHdcp.so" to CM11, but didn't solved this.

so I developed add a few Miracast options for AOSP including HDCP skipping, this morining build for CM11, tilapia and mako Miracast working on CM11.

attached 20140110_mira02_CM11_tilapia-update-signed.zip on next thread.
http://xdaforums.com/showpost.php?p=49265142&postcount=118
build target is tilapia(Nexus 7 2012 3G), but working on Nexus 4.

flash cm-11-20140108-NIGHTLY-mako.zip & 20140110_mira02_CM11_tilapia-update-signed.zip,
lauch Mira4U app, check Skip HDCP, goto Cast screen, *maybe* working :cyclops:

if Miracast worked on N4 after applied this patch, Netflix or other HDCP required contents maybe black screen.

Would this work with N4@Lollipop? Please reply

Xenosis · Dec 12, 2014

Would this work on HTC One [m7]? I am also getting the same exact black screen issues when trying to cast netflix.

Xenosis · Dec 15, 2014

This wifi display helper pro did not work. I couldn't check either box to apply the patch.

Vioner · Dec 15, 2014

@up

I'm signing up under this.

Vioner · Dec 16, 2014

mariod84 said:
Thanks!!! Now it works

@mariod84,

Could you please share your logcat from the moment of tapping the chosen screen to cast on, to the moment when u r connected?
Please share it with us, so that we could compare it to ours.

[Issue][Miracast][CM11] Screen Mirroring broken or not working

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