*** This bug is a duplicate of bug 1674838 ***
https://bugs.launchpad.net/bugs/1674838
Hello
First, I'd like to suggest that this is NOT a duplicate of bug #1674838.
That one seems related to CPU usage, which this is decidedly not.
I think I too have a problem with the i915 drivers. It is hard to
verify, as the computer freezes completely with no traces in any logs I
can find.
Typically, right before the freeze there are other various messages in
/var/log/syslog. So I have spent quite some time looking up those before
I realized that they can't have anything to do with my problem.
These crashes apparently kill the system HARD. I can not ssh into the
rig when it hangs. I cannot switch to terminal.
I suspect i915 because when my PC freezes the screen goes corrupt. A
checkered pattern of rectangles mess up the display, and stays there
until I reboot. I shall try to come up with a photo the next time it
occurs.
It happens randomly between 2 minutes and 2 weeks from boot, and doesn't
seem to have any correlation to what software I run. Though most of the
times, VLC has been on, paused in some movie, sometimes for many hours
before it happens. Though it can be like that for days and weeks without
crashing. It could be that statistically, that is the most common state
this HTPC is in, so VLC may not have anything to do with it.
At one point, it crashed mid-movie, and the sound made a terrible
screeching racket. That is the only time it has caused a sound as well,
other times it just gets a silent anaeurysm.
The only 3D it sees is some Java Minecraft that my daughter sometimes
plays, but it never crashed when that was on.
It is an Intel Pentium G3258 - not overclocked. In fact, I tried
underclocking it to see if it was a power/heat problem. That did not
change the crash freqency or behaviour in any discernible manner. Temps
are mostly 35-45°C (95-115°F).
There is no discrete graphics card, I use the integrated. Connected to a
TV via HDMI. Mobo is an MSI H81I mini-ITX thing.
RAM is 2x2 GB quality stuff, I ran the error checks, no problems.
It has one SSD and two 2.5" SATA HDDs, and should not use more than tops
2/3rd of the 110 W that the Antec ISK110 PSU (external brick) can
deliver. I haven't found a Linux tool to monitor the voltage of the
rails, those that are said to do it don't answer anything about
voltages, but the PSU is not that old and ought to be fine. Also, if the
power was the problem I would expect it to fail more under heavy load,
which it doesn't.
I have had this problem intermittently since at least Ubuntu 16.04,
though I have not kept track of the frequency, and this particular
hardware has seen every Ubuntu version since - through upgrades, failed
upgrades, and clean installs. Never ran Windows on it.
It could be even older than 16.04, I don't quite remember. Mobo has the
latest BIOS from March 2015, CPU is from 2014.
So what steps do I take to pin down this cause? Shall I upload a bunch
of log files even though I suspect they are useless? Make some changes
first? Are there any programs I can run that monitor things in real-time
so that something worthwhile can be caught when the rig croaks?
Friendly,
/M
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https://bugs.launchpad.net/bugs/1687901
Title:
i915 driver makes linux crash
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