This is a note to let you know that I've just added the patch titled
drm/nouveau/acpi: allow non-optimus setups to load vbios from acpi
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-nouveau-acpi-allow-non-optimus-setups-to-load-vbios-from-acpi.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a3d0b1218d351c6e6f3cea36abe22236a08cb246 Mon Sep 17 00:00:00 2001
From: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
Date: Wed, 26 Mar 2014 19:37:21 -0400
Subject: drm/nouveau/acpi: allow non-optimus setups to load vbios from acpi
From: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
commit a3d0b1218d351c6e6f3cea36abe22236a08cb246 upstream.
There appear to be a crop of new hardware where the vbios is not
available from PROM/PRAMIN, but there is a valid _ROM method in ACPI.
The data read from PCIROM almost invariably contains invalid
instructions (still has the x86 opcodes), which makes this a low-risk
way to try to obtain a valid vbios image.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76475
Signed-off-by: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_acpi.c | 3 ---
1 file changed, 3 deletions(-)
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -375,9 +375,6 @@ bool nouveau_acpi_rom_supported(struct p
acpi_status status;
acpi_handle dhandle, rom_handle;
- if (!nouveau_dsm_priv.dsm_detected && !nouveau_dsm_priv.optimus_detected)
- return false;
-
dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
if (!dhandle)
return false;
Patches currently in stable-queue which might be from imirkin@xxxxxxxxxxxx are
queue-3.4/drm-nouveau-acpi-allow-non-optimus-setups-to-load-vbios-from-acpi.patch
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