Syncing task from Mir.
** Changed in: mir (Ubuntu)
Importance: Undecided => Medium
** Changed in: mir (Ubuntu)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/1353887
Title:
Nexus 4: Resuming with multiple system compositors running leads one
of them to crash ("error during hwc prepare()")
Status in Mir:
Triaged
Status in mir package in Ubuntu:
Triaged
Bug description:
Nexus 4: Mir server crashes on resume ("error during hwc prepare()")
Test case:
1. mir_demo_server_shell
2. mir_demo_client_egltriangle
3. Press the power button to sleep
4. Press the power button again to wake up
Expected: Rendering continues on screen after wakeup
Observed:
ERROR:
/home/dan/bzr/mir/dev/src/platform/graphics/android/real_hwc_wrapper.cpp(60):
Throw in function virtual void
mir::graphics::android::RealHwcWrapper::set(hwc_display_contents_1_t&) const
Dynamic exception type:
N5boost16exception_detail10clone_implINS0_19error_info_injectorISt13runtime_errorEEEE
std::exception::what: error during hwc prepare(). rc = ffffffff
Update: I just found this is happening because unity-system-compositor
is still running. If I freeze USC (kill -STOP) then the problem goes
away.
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