Messages in this thread |  | | From | Jani Nikula <> | | Subject | Re: Linux 7.1-rc2 | | Date | Mon, 04 May 2026 13:59:59 +0300 |
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On Mon, 04 May 2026, Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote: > On Mon, May 04, 2026 at 06:52:02AM +0200, Luna Jernberg wrote: >> Hey! >> >> Having the same backlight problem as in rc1 > > I think you can try to find a time and bisect [1] to the problematic commit. > Note, using `ccache` (your distro should have that) may speed up a lot the > build process, hence drastically decrease the time needed to find the culprit. > Taking into account the amount of changes in the kernel it usually takes less > than 14 steps (basically amount of how many times you need to build a kernel).
The bisect is likely the quickest way to root cause this.
But if that's too much to ask, please file a bug as described at [1], with the full dmesg attached, with the proper drm.debugs enabled.
I've seen [2] but it's not the full dmesg, and it doesn't have the appropriate drm.debugs enabled (it's a bit mask).
The replies to Linus' -rc mails give an air of urgency, but there's just not enough actionable information here. There's not going to be a fix in -rc3 either if we don't know what the problem is!
BR, Jani.
[1] https://drm.pages.freedesktop.org/intel-docs/how-to-file-i915-bugs.html [2] https://lore.kernel.org/r/CADo9pHiFE6fX_XxYWL+0UEqDLsXQYGzfvnFF5NK_NWbvMsz25Q@mail.gmail.com
> >> Den sön 3 maj 2026 kl 23:41 skrev Linus Torvalds >> <torvalds@linux-foundation.org>: >> > >> > I bring you tidings of another regular rc release - 7.1-rc2 is out, >> > and looks fairly normal. >> > >> > Now, the raw diffstat doesn't _look_ normal, with half of the diff >> > being to the kvm selftests, but that's pretty much entirely due to >> > just renaming in the selftests to have the same naming conventions as >> > the kernel code has (wrt both variable and type names), so it all >> > looks big and strange, but you should just ignore that oddity. >> > >> > And when that part is masked out, the rest looks very normal - about >> > half various driver fixes (gpu and networking dominating as usual), >> > with the rest being spread all over the place. >> > >> > It's not small, and while it's a bit early to say for sure, I do >> > suspect we're seeing the same continued pattern of more patches than >> > usual - probably due to AI tooling - that we saw in 7.0. >> > >> > Let's keep testing, > > [1]: > https://docs.kernel.org/admin-guide/bug-bisect.html > https://wiki.ubuntu.com/Kernel/KernelBisection > https://wiki.gentoo.org/wiki/Kernel_git-bisect
-- Jani Nikula, Intel
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