SurfaceFlinger crashs when LCD monitor not plugged

[Jian Wu]

Hi Everybody, 

I plan to run android-x86 on pc that LCD monitor unplugged , and surfaceflinger crashed 

Hardware is gigabyte mini-pc GB-BXI7-4770R, this is a hdmi and displayport on it. 

Software is Android-x86 Lollipop.

It crashed during hwcomposere initialization , 

    mHwc = new HWComposer(this,

                *static_cast<HWComposer::EventHandler *>(this));

I see errors 'GRALLOC-KMS( 2138): failed to find a valid crtc/connector/mode combination' , 'E/SurfaceFlinger( 2138): ERROR: failed to open framebuffer (Invalid argument), aborting'.  It seems hwc counts on at least one lcd connected but there is none.  

Any comments?  Thanks in advance.

-----------------LOG--------------------------------------------------------------------------------

D/GRALLOC-KMS( 2138): supported drm planes and formats

D/GRALLOC-KMS( 2138): plane id 21

D/GRALLOC-KMS( 2138):     format XB24

D/GRALLOC-KMS( 2138):     format XR24

D/GRALLOC-KMS( 2138):     format YUYV

D/GRALLOC-KMS( 2138):     format YVYU

D/GRALLOC-KMS( 2138):     format UYVY

D/GRALLOC-KMS( 2138):     format VYUY

D/GRALLOC-KMS( 2138): plane id 25

D/GRALLOC-KMS( 2138):     format XB24

D/GRALLOC-KMS( 2138):     format XR24

D/GRALLOC-KMS( 2138):     format YUYV

D/GRALLOC-KMS( 2138):     format YVYU

D/GRALLOC-KMS( 2138):     format UYVY

D/GRALLOC-KMS( 2138):     format VYUY

D/GRALLOC-KMS( 2138): plane id 29

D/GRALLOC-KMS( 2138):     format XB24

D/GRALLOC-KMS( 2138):     format XR24

D/GRALLOC-KMS( 2138):     format YUYV

D/GRALLOC-KMS( 2138):     format YVYU

D/GRALLOC-KMS( 2138):     format UYVY

D/GRALLOC-KMS( 2138):     format VYUY

E/GRALLOC-KMS( 2138): failed to find a valid crtc/connector/mode combination

D/GRALLOC-KMS( 2138): supported drm planes and formats

D/GRALLOC-KMS( 2138): plane id 21

D/GRALLOC-KMS( 2138):     format XB24

D/GRALLOC-KMS( 2138):     format XR24

D/GRALLOC-KMS( 2138):     format YUYV

D/GRALLOC-KMS( 2138):     format YVYU

D/GRALLOC-KMS( 2138):     format UYVY

D/GRALLOC-KMS( 2138):     format VYUY

D/GRALLOC-KMS( 2138): plane id 25

D/GRALLOC-KMS( 2138):     format XB24

D/GRALLOC-KMS( 2138):     format XR24

D/GRALLOC-KMS( 2138):     format YUYV

D/GRALLOC-KMS( 2138):     format YVYU

D/GRALLOC-KMS( 2138):     format UYVY

D/GRALLOC-KMS( 2138):     format VYUY

D/GRALLOC-KMS( 2138): plane id 29

D/GRALLOC-KMS( 2138):     format XB24

D/GRALLOC-KMS( 2138):     format XR24

D/GRALLOC-KMS( 2138):     format YUYV

D/GRALLOC-KMS( 2138):     format YVYU

D/GRALLOC-KMS( 2138):     format UYVY

D/GRALLOC-KMS( 2138):     format VYUY

E/GRALLOC-KMS( 2138): failed to find a valid crtc/connector/mode combination

E/hwcomposer( 2138): framebuffer_open failed (Invalid argument)

W/hwcomposer( 2138): getting VSYNC period from thin air: 16666666

D/hwcomposer( 2138): Intel hwcomposer module

E/SurfaceFlinger( 2138): ERROR: failed to open framebuffer (Invalid argument), aborting

--------- beginning of crash

F/libc    ( 2138): Fatal signal 6 (SIGABRT), code -6 in tid 2138 (surfaceflinger)

I/DEBUG   ( 1829): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***

I/DEBUG   ( 1829): Build fingerprint: 'Android-x86/android_x86/x86:5.1.1/LMY48Z/user04252152:eng/test-keys'

I/DEBUG   ( 1829): Revision: '0'

I/DEBUG   ( 1829): ABI: 'x86'

I/DEBUG   ( 1829): pid: 2138, tid: 2138, name: surfaceflinger  >>> /system/bin/surfaceflinger <<<

I/DEBUG   ( 1829): signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------

I/DEBUG   ( 1829):     eax 00000000  ebx 0000085a  ecx 0000085a  edx 00000006

I/DEBUG   ( 1829):     esi f77dec48  edi 00000000

I/DEBUG   ( 1829):     xcs 00000023  xds 0000002b  xes 0000002b  xfs 00000003  xss 0000002b

I/DEBUG   ( 1829):     eip f76ff9d6  ebp 0000085a  esp ffde88b0  flags 00000286

I/DEBUG   ( 1829): 

I/DEBUG   ( 1829): backtrace:

I/DEBUG   ( 1829):     #00 pc 0007c9d6  /system/lib/libc.so (tgkill+22)

I/DEBUG   ( 1829):     #01 pc 00023125  /system/lib/libc.so (pthread_kill+117)

I/DEBUG   ( 1829):     #02 pc 00024d1a  /system/lib/libc.so (raise+42)

I/DEBUG   ( 1829):     #03 pc 0001c4c4  /system/lib/libc.so (abort+84)

I/DEBUG   ( 1829):     #04 pc 00032dd5  /system/lib/libsurfaceflinger.so

I/DEBUG   ( 1829):     #05 pc 0002143b  /system/lib/libsurfaceflinger.so (android::SurfaceFlinger::init()+251)

I/DEBUG   ( 1829):     #06 pc 00000c01  /system/bin/surfaceflinger

I/DEBUG   ( 1829):     #07 pc 0001365a  /system/lib/libc.so (__libc_init+106)

I/DEBUG   ( 1829):     #08 pc 00000da8  /system/bin/surfaceflinger

I/DEBUG   ( 1829): 

I/DEBUG   ( 1829): Tombstone written to: /data/tombstones/tombstone_02

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