Similar situation:
When I use fglrx with default configuration it blanks the screen and hard locks
the system (VTs and network die). I have to disable AIGLX, Composite,
Accleration and DRI for it to work at all. If I change VTs it crashes.
I don't have a BIOS option for Memory Re-Mapping so I can't test turning
it on/off. I haven't yet tried removing/replacing a RAM stick.
Hardware:
Intel Core 2 Duo E8400 (45nm, 3.0GHz)
2x2GB = 4GB DDR2-800 Kingston
Gigabyte EP35-SD3R motherboard
Sapphire ATI Radeon HD 2400 PRO
[EMAIL PROTECTED]:~/src$ lsb_release -rd
Description: Ubuntu 8.04
Release: 8.04
[EMAIL PROTECTED]:~/src$ uname -a
Linux viridis 2.6.24-18-generic #1 SMP Wed May 28 19:28:38 UTC 2008 x86_64
GNU/Linux
[EMAIL PROTECTED]:~/src$ cat /proc/meminfo
MemTotal: 4053800 kB
MemFree: 3065532 kB
Buffers: 589464 kB
Cached: 217388 kB
SwapCached: 0 kB
Active: 173052 kB
Inactive: 731264 kB
SwapTotal: 1526132 kB
SwapFree: 1526132 kB
Dirty: 12 kB
Writeback: 0 kB
AnonPages: 97472 kB
Mapped: 32640 kB
Slab: 41824 kB
SReclaimable: 24392 kB
SUnreclaim: 17432 kB
PageTables: 7028 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 3553032 kB
Committed_AS: 330552 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 20608 kB
VmallocChunk: 34359717375 kB
[EMAIL PROTECTED]:~/src$ cat /proc/mtrr
reg00: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1
reg01: base=0xe0000000 (3584MB), size= 512MB: uncachable, count=1
reg02: base=0xd0000000 (3328MB), size= 256MB: uncachable, count=1
reg03: base=0x100000000 (4096MB), size=1024MB: write-back, count=1
reg04: base=0x130000000 (4864MB), size= 256MB: uncachable, count=1
reg05: base=0xcff00000 (3327MB), size= 1MB: uncachable, count=1
For the open-source radeonhd driver which sort-of works I got the
same/similar message as my current fglrx setup in the Xorg log:
(WW) fglrx(0): Failed to set up write-combining range
(0xd0000000,0x10000000)
I'm using fglrx from the ubuntu restricted drivers package:
[EMAIL PROTECTED]:~/src$ apt-cache show xorg-driver-fglrx
Package: xorg-driver-fglrx
...
Source: linux-restricted-modules-2.6.24 (2.6.24.13-19.42)
Version: 1:7.1.0-8-3+2.6.24.13-19.42
...
MD5sum: d25fed1486a3a70766969a54b24b7800
SHA1: bffc8ce322c7127cbbe443254e517fb3e7b8cf8b
SHA256: d54494b5003acc245c988dcd3573b67316a4f7a685380e3661ef847ff6e09ec3
/etc/X11/xorg.conf:
Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "aticonfig-Screen[0]" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
RgbPath "/etc/X11/rgb"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/X11/misc"
FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
FontPath "/usr/share/fonts/X11/75dpi/:unscaled"
FontPath "/usr/share/fonts/X11/Type1"
FontPath "/usr/share/fonts/X11/100dpi"
FontPath "/usr/share/fonts/X11/75dpi"
EndSection
Section "Module"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[0]"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]"
Driver "fglrx"
Option "NoAccel"
Option "NoDRI"
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]"
Device "aticonfig-Device[0]"
Monitor "aticonfig-Monitor[0]"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Extensions"
Option "Composite" "disable"
Option "AIGLX" "disable"
EndSection
--
MTRR is not properly setup on Intel Northbridge Chipset (P35, X38, X48) with
more than 3GB RAM and with Memory Remapping Enabled
https://bugs.launchpad.net/bugs/224404
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