Re: Better workaround - switch KMS off, Was: debian/testing systems stopped to boot after upgrade between 20.02 and 22.02
On Tue, 23 Feb 2010 19:00:53 -0500 Celejar <celejar@gmail.com> shared
this with us all:
>On Tue, 23 Feb 2010 22:56:56 +0100
>wzab <wzab@ise.pw.edu.pl> wrote:
>
>> I have just found the real source of problem - it is the Kernel Mode
>> Switch (KMS).
>> As soon as I have edited /etc/modprobe.d/i915-kms.conf
>> replacing "options i915 modeset=1" with "options i915 modeset=0"
>> the problem disappeared on both machines.
>>
>> So it seems, that this feature may be dangerous (especially it allows
>> the userspace apps to lock the machine).
>
>I haven't been following this thread closely, and I think that your
>problem was not the same as mine, but I've also had to disable KMS on
>my Intel graphics machine:
>
>https://bugs.freedesktop.org/show_bug.cgi?id=25681
>
>I've already noted my problem on the KMS page of the Debian wiki; you
>might want to, too:
>
>http://wiki.debian.org/KernelModesetting
>
>Celejar
Thanks for the links Celejar, the last link would certainly have give me
a clue and two options to use, but I didn't know where to look for the
problem or what was causing it. Sjoerd did and recommended a fix which
I used and it did just that, fixed the problem. Now I know where to
look when it happens again.
Thank you,
Charlie
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