From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 60791] New: Display corruption with Radeon driver during boot
and on desktop
Date: Sun, 25 Aug 2013 21:20:07 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=60791
Bug ID: 60791
Summary: Display corruption with Radeon driver during boot and
on desktop
Product: Drivers
Version: 2.5
Kernel Version: 3.10.5
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: hallbw@gmail.com
Regression: No
Created attachment 107302
--> https://bugzilla.kernel.org/attachment.cgi?id=107302&action=edit
showing the problem during boot
As of vanilla kernel 3.10.5, I am seeing green speckled display artifacts
during boot, and on my desktop. During boot and on solid backgrounds they take
the form of green arcs in multiple places; other times they take the form of
hashed green lines in small areas of the display (such as on the Phoronix
website rendered in Chromium). This corruption does NOT occur on kernels 3.10.4
and below, nor on 3.9 kernels (tested up to 3.9.11 vanilla). I think the
corruption is somehow happening AFTER the display buffer, because when I take a
screenshot, the green speckling is only visible when booted to a problematic
kernel- if I reboot into a kernel with the issue, when I display the screenshot
I previously took the corruption is not visible.
I have tried using "radeon.audio=0" on the kernel command line, but that had no
effect. I am not using HDMI video or audio, only DVI.
Since I couldn't take a screenshot, I took some pictures with a camera. Hard to
see due to focus and because the short green horizontal lines of the corruption
flicker madly.
System details:
x86_64 Solydx 2013.08.06 (Debian jessie/sid rolling base)
BIOSTAR A785GE with onboard Radeon HD4200 video
AMD Phenom II X4 940 CPU
4GB DDR2 memory
More details attached.
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