Attachment 99427 Details for Bug 75917 – possible fix v2

[patch] possible fix v2

0001-vgaswitcheroo-switch-the-mux-to-the-igp-on-power-dow.patch (text/plain), 1.11 KB, created by Alex Deucher on 2014-05-20 15:44:20 UTC

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Creator: Alex Deucher

Created: 2014-05-20 15:44:20 UTC

Size: 1.11 KB

patch

obsolete

>From 6e214bff1fae15574f6913dd2b322d89c432ab96 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Mon, 19 May 2014 14:04:43 -0400
>Subject: [PATCH] vgaswitcheroo: switch the mux to the igp on power down when
> runpm is enabled (v2)
>
>Avoids blank screens on muxed systems when runpm is active.
>
>v2: switch the mux before suspending the dGPU to avoid turning
>the backlight off uncessarily.
>
>bug:
>https://bugs.freedesktop.org/show_bug.cgi?id=75917
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org
>---
> drivers/gpu/vga/vga_switcheroo.c | 3 +++
> 1 file changed, 3 insertions(+)
>
>diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
>index ec0ae2d..eeee98e 100644
>--- a/drivers/gpu/vga/vga_switcheroo.c
>+++ b/drivers/gpu/vga/vga_switcheroo.c
>@@ -620,6 +620,9 @@ static int vga_switcheroo_runtime_suspend(struct device *dev)
> 	struct pci_dev *pdev = to_pci_dev(dev);
> 	int ret;
> 
>+	if (vgasr_priv.handler->switchto)
>+		vgasr_priv.handler->switchto(VGA_SWITCHEROO_IGD);
>+
> 	ret = dev->bus->pm->runtime_suspend(dev);
> 	if (ret)
> 		return ret;
>-- 
>1.8.3.1
>

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Attachments on bug 75917: 99349 | 99424 | 99427

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