[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 #13 from Mauro Santos <registo.mailling at gmail.com> ---
(In reply to Tobias Droste from comment #12)
> (In reply to Eugene Shalygin from comment #11)
> > I have the same problem: Qt5 wakes up dGPU on launch [1]. However, I believe
> > that this is a kernel problem: the dGPU wakes up when a program tries to
> > read from /sys/bus/pci/devices/<bus id>/config. This was not happening with
> > 4.7 and when I use Arch's current LTS kernel (4.4) it also works fine [2].
> 
> As soon as all the patches landed (from comment #10) there's no need to
> check /sys/bus/pci/devices/<bus id>/config anymore, because there's a new
> API to get that info that doesn't need to wake up the device and the problem
> goes away. But right now the mesa patches are not applied as far as I can
> tell.
> 

Aren't most patches in mesa and libdrm by now? At least the versions provided
by Arch already seem to have the patches (or at least some of them).

The only missing piece seems to be the kernel patch which should land once
kernel 4.10 leaves testing.

However 4.9 does not have the patch and as it an LTS release it will stick
around for a while, it would be nice if the sysfs patch was also included in
4.9.

> > 
> > I can't believe that this is intentional [...]
> 
> It's not :-)

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/mesa-dev/attachments/20170227/6e7fbbb5/attachment.html>