Re: [PATCH v3] PCI: Reprogram bridge prefetch registers on resume

Thomas Martitz
2018-10-01T14:25:06Z

Am 01.10.18 um 06:57 schrieb Daniel Drake:
> On Sun, Sep 30, 2018 at 5:07 AM Thomas Martitz <kugel@rockbox.org> wrote:
>> The latest iteration does not work on my HP system. The GPU fails to
>> power up just like the unpatched kernel.
>
> That's weird, I would not expect a behaviour change in the latest
> patch. pci_restore_config_dword() has some debug messages, could you
> please make them visible and show logs again?
> Also remind us of the PCI device address of the parent bridge (lspci -vt)
>

I'll follow up with more the requested information on bugzilla
(Link: https://bugzilla.kernel.org/show_bug.cgi?id=201069).

On a quick re-check, it seems to depend on if I used the eGPU before
the initial suspend. If I run glxgears (with DRI_PRIME=1) before suspend
it seems fine.

Best regards.