https://bugs.freedesktop.org/show_bug.cgi?id=31984
Summary: [radeon] Commit 3455a3 Introduces Display Correction
on Portrait Orientation on Evergreen
Product: xorg
Version: git
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Hardware: Radeon HD 5770
Displays: 2x Dell 2209W via DVI outputs
Kernel: 2.6.36.1
Xorg Server: 1.9.2
Mesa: 7.9
Using Kernel Mode Setting
The following commit
commit 3455a3b58532ea3ad901a317126968ab6cbb21b7
Author: Alex Deucher <[email protected]>
Date: Wed Nov 17 17:32:41 2010 -0500
radeon/kms: fix buffer base alignment for tiling
On r6xx+, 2D tiling can require larger than 4k base alignment.
causes display corruption when the displays are placed in portrait orientation.
There're no differences between the `dmesg | grep drm` and `Xorg.0.log` files
between working versions before this commit and the broken ones including and
after this one.
Display corruption occurs when the portrait orientation is set via either
`xorg.conf` or `xrandr` after X is started in landscape mode.
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