[Bug 107520] Segmentation fault in Gnome Shell when resuming from blank screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107520

--- Comment #8 from Denis <denys.kostin at globallogic.com> ---
Interesting, I reproduced crash, but it doesn't look like yours.
Steps:
1. Turn off built-in display
2. Connect 4k display via display port and set 200%
3. Follow your steps (put PC into sleep mode)
4. Wake up by "Enter" button
Result: appears on login screen. Both screens are turned on (built-in and 4k).
Reproducibility: 2 times from 5 tries for now. Continue investigation




[11419.667456] gnome-shell[7093]: segfault at 1c ip 00007f9caa2cd7f0 sp
00007fff838c6c28 error 4 in libmutter-2.so.0.0.0[7f9caa2b7000+c0000]
[11419.691017] rfkill: input handler enabled
[11420.127671] wlp2s0: deauthenticating from 20:a6:cd:d3:89:50 by local choice
(Reason: 3=DEAUTH_LEAVING)
[11420.138715] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[11431.909028] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[11433.397711] wlp2s0: authenticate with 20:a6:cd:d3:89:50
[11433.402293] wlp2s0: send auth to 20:a6:cd:d3:89:50 (try 1/3)
[11433.404083] wlp2s0: authenticated
[11433.407310] wlp2s0: associate with 20:a6:cd:d3:89:50 (try 1/3)
[11433.408502] wlp2s0: RX AssocResp from 20:a6:cd:d3:89:50 (capab=0x1411
status=0 aid=7)
[11433.409910] wlp2s0: associated
[11433.435356] wlp2s0: Limiting TX power to 33 (33 - 0) dBm as advertised by
20:a6:cd:d3:89:50
[11433.575183] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[11434.341799] rfkill: input handler disabled
[11435.442383] [drm] Reducing the compressed framebuffer size. This may lead to
less power savings than a non-reduced-size. Try to increase stolen memory size
if available in BIOS.
[11555.060700] [drm] Reducing the compressed framebuffer size. This may lead to
less power savings than a non-reduced-size. Try to increase stolen memory size
if available in BIOS.
[11556.442206] gnome-shell[7613]: segfault at 1c ip 00007f8f0a0b27f0 sp
00007ffe1d185dc8 error 4 in libmutter-2.so.0.0.0[7f8f0a09c000+c0000]
[11556.482070] rfkill: input handler enabled
[11556.868104] wlp2s0: deauthenticating from 20:a6:cd:d3:89:50 by local choice
(Reason: 3=DEAUTH_LEAVING)
[11556.878860] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[11564.855046] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
[11566.355255] wlp2s0: authenticate with 20:a6:cd:d3:89:50
[11566.361166] wlp2s0: send auth to 20:a6:cd:d3:89:50 (try 1/3)
[11566.363045] wlp2s0: authenticated
[11566.365002] wlp2s0: associate with 20:a6:cd:d3:89:50 (try 1/3)
[11566.366224] wlp2s0: RX AssocResp from 20:a6:cd:d3:89:50 (capab=0x1411
status=0 aid=7)
[11566.367681] wlp2s0: associated
[11566.453582] wlp2s0: Limiting TX power to 33 (33 - 0) dBm as advertised by
20:a6:cd:d3:89:50
[11566.526028] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[11567.397441] rfkill: input handler disabled
[11568.531937] [drm] Reducing the compressed framebuffer size. This may lead to
less power savings than a non-reduced-size. Try to increase stolen memory size
if available in BIOS.

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