[Mesa-dev] [Bug 98502] Delay when starting firefox, thunderbird or chromium and dmesg spam

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98502

--- Comment #23 from Emil Velikov <emil.l.velikov at gmail.com> ---
(In reply to Eugene Shalygin from comment #22)

> I don't quite understand the situation too. I observe two opposite
> behaviours with the same kernel version (4.9): lspci wakes up dGPU on
> ArchLinux or not (Gentoo). Which one is bugged?

As I said earlier - first, you want to ensure that the dGPU is powered off in
_both_ cases (Arch vs Gentoo). Assuming you're OK with building your own kernel
a couple of printfs is all you need.

If the state is not the same - check you can the conditions under which the
device should be powered-off - powertop toggles, something using your dGPU,
etc.

If they are - check with the lspci/other version and thus code used on both
systems.

In either case all this sounds unrelated to this bug, so I'd suggest keeping it
separate.

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