Forgot to Cc the list, sorry.
Am 18.07.2014 18:25, schrieb Daniel Vetter:
On Fri, Jul 18, 2014 at 4:49 PM, Jan Niggemann <j...@hz6.de> wrote:
Am 18.07.2014 15:27, schrieb Daniel Vetter:
On Thu, Jul 17, 2014 at 10:31:30PM +0200, Jan Niggemann wrote:
I'm experiencing an issue with 3.15.5 on my Lenovo T400:
Since 3.15 (or 3.14, can't say for sure), the boot starts
normally, but
the
first mode change doesn't occur, resulting in a black screen with
backlight
on. The system is entirely unresponsive and I can only press the
power
button until to switch it off.
I think the only way to move forward here is to double-check that
3.14
works and 3.15 is broken by recompiling with the same .config
(occasionally config changes cause regressions). And then do a full
git
bisect to find the offending commit.
thank you for the feedback.
I still have all my custom built kernels, I will test 3.14.0 through
3.14.8
to make sure those were OK and report back.
You only need to test 3.14.0, since the backported fixes only contain
a very small subset of all patches for 3.15. So it's more efficient
to
then switch to git bisect between 3.14 and 3.15 directly (after
you've
confirmed that 3.15.0 is indeed busted).
I now booted my custom 3.14.1 some 30 times, the issue didn't show
once. It seems that it is indeed the 3.15 line that's borked.
I uploaded my custom 3.14.1 and 3.15.1 config files here:
http://files.hz6.de/kernel-configs-jn.tgz
May this be related to this mail
http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg42432.html
"fix freeze with blank screen booting highmem" by Hugh Dickins?
Kind regards
jan
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