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https://bugs.launchpad.net/bugs/1944752
Title:
AER PCIe Bus Error for Asus X541UVK
Status in linux package in Ubuntu:
Incomplete
Bug description:
I already posted this on the Ubuntu Forums and I'm revisiting it now
with more information and accuracy.
Whenever I try to install any flavor of *buntu, I always run into this
problem; a process taking up all of my CPU and after a while, it
crashes the system and the whole screen goes black with text spamming.
It shows some PCI errors non-stop, and following some guides online i
tried to fix it but never actually succeeded.
The distro I was trying to install this time was the default 20.04.2
Ubuntu.
My PC is a laptop, it's an ASUS X541UVK with an i7 7500U and Geforce
920MX. At first I thought that there was a problem with the Nvidia GPU
but it appears to be with the Realtek BT card. I went to follow this
guide:
https://forums.linuxmint.com/viewtopic.php?t=305970
(since using pci=nomsi once solved the issue some time ago)
And the reproduced steps from the guide above are here (from the live usb):
https://imgur.com/a/enq5UCt
However this still doesn't solve my problems. I submitted my
information at the time on this bug:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1521173
But now I made a duplicate of the bug since my pc has slightly
different hardware. Also, I have a little bit more free time now. So,
this time, I tried again with Ubuntu 20.04.3 and the results were
pretty much the same; after booting up Ubuntu reported an "internal
error" and I just managed to open the Gnome System Monitor (and sort
the processes by CPU usage) just before the entire pc froze. Here are
some pictures:
https://imgur.com/a/Sd7TO4y
Then, as suggested in the original bug report (
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1521173/comments/139
), I tried booting using the "pci=noaer" option, and the desktop at
first booted fine, much quicker than before also, but for a few
seconds the screen went black and these appeared on screen:
https://imgur.com/a/Ppq2D0W
Then after that it just went back to normal, and I didn't notice any
anomaly. Also here (again, as suggested in the other bug report) I
copy-pasted the results of "lspci -nn" and "dmesg":
https://pastebin.com/HMvdhvnz
https://pastebin.com/pnjPNcWr
I really hope this helps towards finding the issue :) for anything
else for me to try, feel free to suggest and I'll try it and report
the results.
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