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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1833474
Title:
Radom & frequent total crashes since upgrade to 19.04
Status in linux package in Ubuntu:
Incomplete
Bug description:
Hi,
I'm using an ASUS X751L laptop for several years with no (=a few
manageable) problem(s).
Two weeks ago, I switched to Xunbuntu 19.04, by:
- changing the lines in the /etc/sources.list
- running apt-get dist-upgrade
Since then, the computer randomly totally freezes ~twice a day. Even
after another dist-upgrade this morning...
When I say "totally freezes", I mean:
- Mouse is froozen, if there was sound playing (be it movie or music, played
either with mplayer or vlc), then the last 1/2 second loops indefinitely
- CTRL-ALT-Fn do not work
- There's nothing in the logs: kern.log, syslog, dmesg... appart some garbage
chars (like ^@^@^@...) that sometimes gets appended in syslog at crash time.
- Even when activated Magic SysReq (ALT-SysReq-RSEIUB) do not work
- Alt-SysReq 1 + Alt-SysReq t do not create anything in /var/crash (there are
some files for qemu & xfce4-panel, that I already reported)
- Following https://wiki.ubuntu.com/Kernel/CrashdumpRecipe , I installed
linux-crashdump, and verified it correctly sets the boot line option, but
nothing gets created in /var/crash when computer crashes (apart a kexec_cmd
file that simply lists the boot line args).
- Quick (2/3 sec) press on the power button does nothing
- Long (10 sec) press on the power button is the only way to regain control...
- I've tried to run Memtest86+ (even if I'm sure RAM is not the problem as it
started occurring only after dist-upgrade to 19.04), but the system is UEFI, so
option is not in the grub menu. I'll try to make a USB stick to test the RAM
FYI, the internal wifi card (rtl8723) has always caused troubles: HD
write slowdowns, audio device locks, etc (from what I guess, it
overfills some internal bus...). So I deactivate it at boot by
removing the module, and I use another external Wifi dongle
(rt2800usb)
$ uname -a
Linux gmuller-X751LAB 5.0.0-16-generic #17-Ubuntu SMP Wed May 15 10:52:21 UTC
2019 x86_64 x86_64 x86_64 GNU/Linux
# Note: crashes occurred also with 5.0.0-15
Does anyone has any hints/tips on how I could get more info & target
where the problem comes from? because as-is the computer is just
unusable...
In the attached log files, the crash occurred right before my manual
reboot at 15:17:24
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