This is a note to let you know that I've just added the patch titled
drm/radeon: fix regression on atom cards with hardcoded EDID record.
to the 2.6.38-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-radeon-fix-regression-on-atom-cards-with-hardcoded-edid-record.patch
and it can be found in the queue-2.6.38 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From eaa4f5e1d0b816291a59a47917e569c0384f2b6f Mon Sep 17 00:00:00 2001
From: Dave Airlie <[email protected]>
Date: Sun, 1 May 2011 20:16:30 +1000
Subject: drm/radeon: fix regression on atom cards with hardcoded EDID record.
From: Dave Airlie <[email protected]>
commit eaa4f5e1d0b816291a59a47917e569c0384f2b6f upstream.
Since fafcf94e2b5732d1e13b440291c53115d2b172e9 introduced an edid size, it
seems to have broken this path.
This manifest as oops on T500 Lenovo laptops with dual graphics primarily.
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=33812
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/radeon_atombios.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1599,9 +1599,10 @@ struct radeon_encoder_atom_dig *radeon_a
memcpy((u8 *)edid, (u8
*)&fake_edid_record->ucFakeEDIDString[0],
fake_edid_record->ucFakeEDIDLength);
- if
(drm_edid_is_valid(edid))
+ if
(drm_edid_is_valid(edid)) {
rdev->mode_info.bios_hardcoded_edid = edid;
- else
+
rdev->mode_info.bios_hardcoded_edid_size = edid_size;
+ } else
kfree(edid);
}
}
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.38/drm-radeon-fix-regression-on-atom-cards-with-hardcoded-edid-record.patch
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