Hello, Was messing around further in debug mode and got a backtrace. IIRC this is when the "white window" is left on the screen.
$ chromium --debug # Env: # LD_LIBRARY_PATH= # PATH=/usr/local/bin:/usr/bin:/bin:/usr/games # GTK_PATH= # CHROMIUM_FLAGS= --show-component-extension-options --enable-gpu-rasterization --no-default-browser-check --disable-pings --media-router=0 --enable-remote-extensions --load-extension= /usr/bin/gdb /usr/lib/chromium/chromium -x /tmp/chromiumargs.ytuFCe GNU gdb (Debian 8.2.1-2+b3) 8.2.1 Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/lib/chromium/chromium...(no debugging symbols found)...done. (gdb) run Starting program: /usr/lib/chromium/chromium --show-component-extension-options --enable-gpu-rasterization --no-default-browser-check --disable-pings --media-router=0 --enable-remote-extensions --load-extension= --single-process [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffea9e1700 (LWP 26371)] [Detaching after fork from child process 26372] [New Thread 0x7fffea1e0700 (LWP 26376)] [New Thread 0x7fffe3fff700 (LWP 26377)] [New Thread 0x7fffe37fe700 (LWP 26378)] [New Thread 0x7fffe2ffd700 (LWP 26379)] [New Thread 0x7fffe27fc700 (LWP 26380)] [New Thread 0x7fffe1ffb700 (LWP 26381)] [New Thread 0x7fffe17fa700 (LWP 26382)] [New Thread 0x7fffe0ff9700 (LWP 26383)] [New Thread 0x7fffbffff700 (LWP 26384)] [New Thread 0x7fffe847b700 (LWP 26385)] [New Thread 0x7fffbf7fe700 (LWP 26386)] [New Thread 0x7fffbeffd700 (LWP 26387)] [New Thread 0x7fffbe7fc700 (LWP 26388)] [New Thread 0x7fffbd7fa700 (LWP 26390)] [New Thread 0x7fffbdffb700 (LWP 26389)] [New Thread 0x7fffbcff9700 (LWP 26391)] [New Thread 0x7fff9bfff700 (LWP 26392)] [New Thread 0x7fff9b7fe700 (LWP 26393)] [New Thread 0x7fff99ffb700 (LWP 26396)] [New Thread 0x7fff9affd700 (LWP 26394)] [New Thread 0x7fff9a7fc700 (LWP 26395)] [26367:26367:0122/103103.760571:ERROR:system_network_context_manager.cc(726)] Cannot use V8 Proxy resolver in single process mode. [New Thread 0x7fff997fa700 (LWP 26397)] [New Thread 0x7fff98ff9700 (LWP 26398)] [26367:26367:0122/103103.812257:ERROR:system_network_context_manager.cc(726)] Cannot use V8 Proxy resolver in single process mode. [New Thread 0x7fff7ffff700 (LWP 26399)] [New Thread 0x7fff7f7fe700 (LWP 26400)] [New Thread 0x7fff7effd700 (LWP 26401)] [Thread 0x7fff7effd700 (LWP 26401) exited] [New Thread 0x7fff7e7fc700 (LWP 26402)] libGL error: failed to authenticate magic 1 libGL error: failed to load driver: radeonsi [New Thread 0x7fff7d233700 (LWP 26403)] [New Thread 0x7fff7ca32700 (LWP 26404)] [New Thread 0x7fff63fff700 (LWP 26405)] [New Thread 0x7fff637fe700 (LWP 26406)] [New Thread 0x7fff62ffd700 (LWP 26407)] [New Thread 0x7fff627fc700 (LWP 26408)] [New Thread 0x7fff61ffb700 (LWP 26409)] [New Thread 0x7fff617fa700 (LWP 26410)] [New Thread 0x7fff60ff9700 (LWP 26411)] Thread 18 "CompositorTileW" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffbcff9700 (LWP 26391)] 0x00005555595dafe8 in ?? () (gdb) bt #0 0x00005555595dafe8 in () #1 0x000055555668aea8 in () #2 0x000055555668b5f3 in () #3 0x00005555565e9460 in () #4 0x00005555565ed2d8 in () #5 0x000055555663c228 in () #6 0x000055555660b287 in () #7 0x000055555660b6ac in () #8 0x000055555660ba21 in () #9 0x000055555660c034 in () #10 0x00005555565da464 in () #11 0x00005555565f738e in () #12 0x00005555565f1188 in () #13 0x0000555556611dc4 in () #14 0x00005555599024fc in () #15 0x00005555599092cf in () #16 0x0000555559909c87 in () #17 0x0000555559909362 in () #18 0x00005555598f3576 in () #19 0x0000555559f46b83 in () #20 0x0000555559f47fe2 in () #21 0x0000555559f485ce in () #22 0x0000555559f40359 in () --Type <RET> for more, q to quit, c to continue without paging--c #23 0x0000555559f73b93 in () #24 0x0000555559f524d9 in () #25 0x0000555559f526c0 in () #26 0x000055555915aae5 in () #27 0x00007ffff7f88fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486 #28 0x00007ffff02f24cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 (gdb) quit A debugging session is active. Inferior 1 [process 26367] will be killed. Quit anyway? (y or n) y Karl <k...@karlpinc.com> Free Software: "You don't pay back, you pay forward." -- Robert A. Heinlein
