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October 2010
- 2 participants
- 130 discussions
[Bug 20593] New: radeonhd driver generates unaligned traps on Alpha
by bugzilla-daemon@freedesktop.org 16 May '11
by bugzilla-daemon@freedesktop.org 16 May '11
16 May '11
http://bugs.freedesktop.org/show_bug.cgi?id=20593
Summary: radeonhd driver generates unaligned traps on Alpha
Product: xorg
Version: git
Platform: Alpha
OS/Version: Linux (All)
Status: NEW
Severity: minor
Priority: low
Component: Driver/radeonhd
AssignedTo: lverhaegen(a)suse.de
ReportedBy: mcree(a)orcon.net.nz
QAContact: xorg-team(a)lists.x.org
CC: mcree(a)orcon.net.nz
The radeonhd driver generates unaligned traps on Alpha architecture. These are
not a show stopper, but do incur very inefficient memory accesses via kernel
traps, and pollute the kernel logs with annoying messages.
Using radeonhd at git df71658688e47614a3f660c28ac1dc77970eb491
But the version is irrelevant as the misaligned memory accesses have been there
for a long time - I have been too lazy to report them until now.
>From dmesg:
X(2015): unaligned trap at 0000020000903088: 000002000098c5d7 28 1
X(2015): unaligned trap at 0000020000903088: 000002000098c5df 28 1
X(2015): unaligned trap at 0000020000903088: 000002000098c5e7 28 1
X(2015): unaligned trap at 0000020000903088: 0000020000989771 28 1
Connecting gdb to the running X process reveals the culprit:
(gdb) list *0x0000020000903088
0x20000903088 is in GetParametersDirect32 (AtomBios/CD_Operations.c:441).
436 }
437
438 UINT32 GetParametersDirect32(PARSER_TEMP_DATA STACK_BASED *
pParserTempData)
439 {
440 pParserTempData->CD_Mask.SrcAlignment=alignmentDword;
441
pParserTempData->Index=*(UINT32*)pParserTempData->pWorkingTableData->IP;
442 pParserTempData->pWorkingTableData->IP+=sizeof(UINT32);
443 return pParserTempData->Index;
444 }
445
Line 441 is a 32bit (long word) access. The address dereferenced is not
aligned to a 32bit boundary for an unaligned trap to occur.
The ati driver is worse. It coughs up unaligned traps from
GetParametersDirect16() and GetParametersRegister() too, but I haven't seen
these from radeonhd.
Cheers
Michael.
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3
10
[Bug 25309] New: OpenGL corruption with radeonhd on HD 4850
by bugzilla-daemon@freedesktop.org 09 Mar '11
by bugzilla-daemon@freedesktop.org 09 Mar '11
09 Mar '11
http://bugs.freedesktop.org/show_bug.cgi?id=25309
Summary: OpenGL corruption with radeonhd on HD 4850
Product: xorg
Version: 7.5
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: Driver/radeonhd
AssignedTo: eich(a)pdx.freedesktop.org
ReportedBy: dawitbro(a)sbcglobal.net
QAContact: xorg-team(a)lists.x.org
Created an attachment (id=31493)
--> (http://bugs.freedesktop.org/attachment.cgi?id=31493)
xorg.conf
Overview: Enabling OpenGL support in apps while using combination of radeonhd
with RV770 GPU leads to massive screen corruption. It's likely that this is a
very hardware-specific issue -- see reference to fdo bug #24301 in "Additional
information" section below. Originally this bug was shared by radeon as well
as radeonhd, but has been fixed in xf86-video-ati by Alex Deucher (commit
5f84636...), so it now is present in radeonhd only.
Steps to reproduce: I've been using two apps to test OpenGL: 'prboom' and
'dosbox'. (I believe that running any app using OpenGL would result in the
same massive rendering corruption.)
prboom: running 'prboom -vidmode gl' enables OpenGL support, resulting in
corruption. (Running 'prboom' without "-vidmode gl" option disables OpenGL,
and rendering is fine.)
dosbox: graphics output mode is controlled by ~/.dosboxrc, in the section
called "[sdl]", and using the option "output=opengl" enables OpenGL support.
(Setting this to other output modes, such as "output=overlay", disables OpenGL
in DOSBox and results in perfect rendering.)
Actual results:
prboom: running prboom with OpenGL enabled results in massive screen
corruption. The game does not crash, but all surfaces and enemies are rendered
in a garbled fashion. Essentially unplayable, unless you want to take an "acid
trip" without the LSD.
dosbox: Running an old DOS game (I've been using Warlords 2) with OpenGL
enabled results in worse corruption than with 'prboom', and is totally
unusable. DOSBox is not crashed, and the game's keyboard shortcuts are
working, but you cannot see anything at all except the unchanging, corrupt
graphics.
Both test apps spam my dmesg and kern.log files with this message when running
with OpenGL enabled:
[drm:r600_cp_dispatch_texture] *ERROR* Invalid destination offset
Expected results: both apps should render the games without corrupting the
graphics and with all of the benefits OpenGL has to offer (acceleration,
superior rendering quality, etc.).
System info:
GPU:
GIGABYTE GV-R485MC-1GI Radeon HD 4850 (RV770)
1GB VRAM, 256-bit GDDR3
PCI Express 2.0 x16
Kernel + architecture: [uname -r -m]
2.6.32-rc8-0git091120.desktop.uvesafb x86_64
Linux distribution: Debian unstable
Machine: self-built
MSI 790FX-GD70 motherboard
socket AM3
AMD 790FX and SB750 Chipset
OCZ OCZ3P1600EB4GK 2x2GB DDR3 1600
AMD Phenom II X4 955
Software versions:
xf86-video-radeonhd: git commit 6387ab4..., dated 11-12-2009
Mesa-7.7-devel: git commit 37676b3..., dated 11-15-2009
libdrm: release 2.4.15 tarball
XOrg Server: 1.7.0 from Debian experimental, dated 10-04-2009
prboom: v2.5.0
DOSBox: v0.72
Additional versions:
radeonhd: initially was using 1.2.5 from Debian unstable; built radeon
1.3.0 from official release tarball in early November before upgrading to the
version mention above on Nov. 12
Mesa: initially using Mesa-7.7-devel from tarball, dated 11-05-2009
X Server: initially using 1.6.5 from Debian unstable
(Other software -- libdrm, prboom, and DOSBox -- remained unchanged.)
Symptoms with OpenGL enabled did not change (on radeonhd) with any of the
mentioned version changes.
Additional Information:
This problem was discovered in the process of experimenting with 2D/3D
acceration support for my RV770 GPU. Debian did not include support for Radeon
'r600' in their Mesa-7.6 packages, so I had to build upstream versions of
libdrm, Mesa-7.7-devel, and xf86-video-radeonhd to get the necessary support
for 'r600'.
I also have experimented with xf86-video-ati. The "xserver-xorg-video-radeon"
package in Debian unstable (from xf86-video-ati) was version 6.12.3 when I
began experimenting. It also produced the same graphics corruption I am seeing
with "radeonhd", including the "r600_cp_dispatch_texture" error spam in my
logs. However, it was discovered by Alex Deucher that a problem in the
"radeon" DDX driver having to do with large amounts of VRAM was the cause of
the problem with that driver. (See fdo bug #24301.) Matthias Hopf believes
that the root cause of this identical corruption (and log spam) I am
experiencing with "radeonhd" is not the same as for "radeon", however.
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[Bug 22114] New: monitor sometimes stays flashing black
by bugzilla-daemon@freedesktop.org 21 Jan '11
by bugzilla-daemon@freedesktop.org 21 Jan '11
21 Jan '11
http://bugs.freedesktop.org/show_bug.cgi?id=22114
Summary: monitor sometimes stays flashing black
Product: xorg
Version: 7.4
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/radeonhd
AssignedTo: lverhaegen(a)suse.de
ReportedBy: estellnb(a)gmail.com
QAContact: xorg-team(a)lists.x.org
Using the new xorg-x11-driver-video-radeonhd-1.2.5_20090506_4be5f71-3.1 driver
with kernel2.6.30-rc5-git1-master_20090515173431_9c6d4c14-default as
recommended a very strange error annoys me from time to time:
The screen suddenly turns black for about a second; then it continues to view
everything as usual. This happens multiple times in sequence and may not stop
at all; very annoying.
using a FS Scaleoview Q26W-1 1920x1200 monitor.
Singleton turn-blacks have occured with previous versions but they did not
annoy. Now they occur multiple times in sequence and may not stop at all. May
be related with bug 21896, since it sometimes occurs more often on scrolling.
Very likely related to the new radeonhd driver since the rest of the system has
stayed the same; i.e. I have not updated Xorg or any other relevant component
than the 2.6.30 kernel required for the new radeonhd.
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28
[Bug 29450] New: radeonhd driver makes color blending of X screen
by bugzilla-daemon@freedesktop.org 02 Dec '10
by bugzilla-daemon@freedesktop.org 02 Dec '10
02 Dec '10
https://bugs.freedesktop.org/show_bug.cgi?id=29450
Summary: radeonhd driver makes color blending of X screen
Product: xorg
Version: unspecified
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: critical
Priority: medium
Component: Driver/radeonhd
AssignedTo: eich(a)pdx.freedesktop.org
ReportedBy: alx333(a)gmail.com
QAContact: xorg-team(a)lists.x.org
With radeon driver works just fine. After switching to radeonhd driver, X
screen looks like color burst or color blending (see attached images). The
square on the images is mouse cursor and it is even moving by mouse. I have
successfully tried to login blindly to the KDE and have heard startup KDE
sound. But screen isn't change. Then I tried to start manually Xorg server on
:1 screen with the same result (logs and config are attached).
Software:
Gentoo Linux gbox 2.6.35-gentoo #8 SMP Sat Aug 7 17:41:56 EEST 2010 x86_64
Intel(R) Core(TM)2 Duo CPU T5800 @ 2.00GHz GenuineIntel GNU/Linux
x11-base/xorg-server-1.8.2
x11-base/xorg-drivers-1.8
x11-base/xorg-x11-7.4-r1
x11-drivers/xf86-video-radeonhd-1.3.0
Hardware:
ASUS F80S laptop,
ATI Radeon HD 3470,
Intel C2D 2 GHz, 2GB, 250GB
# lspci | grep VGA
01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3400
Series
# grep DRM /usr/src/linux/.config
CONFIG_DRM=y
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_TTM=m
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
CONFIG_DRM_RADEON=m
CONFIG_DRM_RADEON_KMS=y
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
Attached:
IMG_4409.JPG, IMG_4410.JPG - 2 photos of my screen.
Xorg.0.log, Xorg.1.log - logs of Xorg for :0 and :1 screens respectively.
xorg.conf - my xorg config.
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The problems I am seeing are that:
1. Flash performance is very slow (heh)
2. Compiz won't start
3. OpenGL work in Processing is at 4~6 fps
Great things:
GLXGears is several thousands of frames every 5 seconds
Attached is Xorg.0.log, xorg.conf, and output from GLXINFO
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4