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Old 09-01-2009, 08:25 AM   #1
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Registered: Jan 2007
Location: france
Distribution: Debian
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xorg radeonhd driver & 'unable to open display' with glxinfo

Please don't laugh...

I run glxinfo as root (instead of running it as a user) so that's why i get the message 'unable to open display'.... :/
Everything is ok !

Hi all,

I installed the xorg radeonhd driver on my Debian Sid for an ATI X1950 PRO.

And when I do glxinfo , I get this :

No protocol specified
Error: unable to open display :0.0

So I think dri is not enabled.
But, as you will see, in my Xorg.0.log, there is Direct rendering enabled...
So I don't know. Maybe I did something wrong.

I got no (EE) in my Xorg.0.log

I made a list of all the infos that I think it can be usefull for you to help me.
But tell me if you need other infos (maybe strace glxinfo).


Debian GNU/Linux squeeze/sid 
Linux 2.6.30-1-686 GNU/Linux


lspci -v | grep -i radeon

01:00.0 VGA compatible controller: ATI Technologies Inc RV570 [Radeon X1950 Pro] (prog-if 00 [VGA controller])
01:00.1 Display controller: ATI Technologies Inc RV570 [Radeon X1950 Pro] (secondary)


dpkg -l | grep -i xorg

ii  xorg                                 1:7.4+4                        X.Org X Window System
ii  xorg-docs                            1:1.4-5                        Miscellaneous documentation for the X 
ii  xorg-docs-core                       1:1.4-5                        Core documentation for the X Window Sy
ii  xserver-xorg                         1:7.4+4                        the X.Org X server
ii  xserver-xorg-core                    2:1.6.3-1+b1                   Xorg X server - core server
ii  xserver-xorg-input-all               1:7.4+4                        the X.Org X server -- input driver metapacka
ii  xserver-xorg-input-evdev             1:2.2.5-1                      X.Org X server -- evdev input driver
ii  xserver-xorg-input-kbd               1:1.3.2-4                      X.Org X server -- keyboard input driver
ii  xserver-xorg-input-mouse             1:1.4.0-4                      X.Org X server -- mouse input driver
ii  xserver-xorg-input-synaptics         1.1.2-1                        Synaptics TouchPad driver for X.Org server
ii  xserver-xorg-input-wacom                         X.Org X server -- Wacom input driver
ii  xserver-xorg-video-all               1:7.4+4                        the X.Org X server -- output driver metapack
ii  xserver-xorg-video-apm               1:1.2.1-2                      X.Org X server -- APM display driver
ii  xserver-xorg-video-ark               1:0.7.1-2                      X.Org X server -- ark display driver
ii  xserver-xorg-video-ati               1:6.12.2-3                     X.Org X server -- ATI display driver wrapper
ii  xserver-xorg-video-chips             1:1.2.1-3                      X.Org X server -- Chips display driver
ii  xserver-xorg-video-cirrus            1:1.3.1-1                      X.Org X server -- Cirrus display driver
ii  xserver-xorg-video-dummy             1:0.3.1-2                      X.Org X server -- dummy display driver
ii  xserver-xorg-video-fbdev             1:0.4.0-4                      X.Org X server -- fbdev display driver
ii  xserver-xorg-video-glint             1:1.2.3-1                      X.Org X server -- Glint display driver
ii  xserver-xorg-video-i128              1:1.3.2-1                      X.Org X server -- i128 display driver
ii  xserver-xorg-video-i740              1:1.3.0-1                      X.Org X server -- i740 display driver
ii  xserver-xorg-video-intel             2:2.8.1-1                      X.Org X server -- Intel i8xx, i9xx display d
ii  xserver-xorg-video-mach64            6.8.2-1                        X.Org X server -- ATI Mach64 display driver
ii  xserver-xorg-video-mga               1:1.4.11.dfsg-1                X.Org X server -- MGA display driver
ii  xserver-xorg-video-neomagic          1:1.2.3-1                      X.Org X server -- Neomagic display driver
ii  xserver-xorg-video-nv                1:2.1.14-2                     X.Org X server -- NV display driver
ii  xserver-xorg-video-openchrome        1:0.2.903+svn741-1+b1          X.Org X server -- VIA display driver
ii  xserver-xorg-video-r128              6.8.1-1                        X.Org X server -- ATI r128 display driver
ii  xserver-xorg-video-radeon            1:6.12.2-3                     X.Org X server -- ATI Radeon display driver
ii  xserver-xorg-video-radeonhd          1.2.5-1                        X.Org X server -- AMD/ATI r5xx, r6xx display
ii  xserver-xorg-video-rendition         1:4.2.1-1                      X.Org X server -- Rendition display driver
ii  xserver-xorg-video-s3                1:0.6.2-1                      X.Org X server -- legacy S3 display driver
ii  xserver-xorg-video-s3virge           1:1.10.2-2                     X.Org X server -- S3 ViRGE display driver
ii  xserver-xorg-video-savage            1:2.3.0-1                      X.Org X server -- Savage display driver
ii  xserver-xorg-video-siliconmotion     1:1.7.2-1                      X.Org X server -- SiliconMotion display driv
ii  xserver-xorg-video-sis               1:0.10.1-2                     X.Org X server -- SiS display driver
ii  xserver-xorg-video-sisusb            1:0.9.1-1                      X.Org X server -- SiS USB display driver
ii  xserver-xorg-video-tdfx              1:1.4.1-1                      X.Org X server -- tdfx display driver
ii  xserver-xorg-video-tga               1:1.2.0-1                      X.Org X server -- TGA display driver
ii  xserver-xorg-video-trident           1:1.3.1-1                      X.Org X server -- Trident display driver
ii  xserver-xorg-video-tseng             1:1.2.1-1                      X.Org X server -- Tseng display driver
ii  xserver-xorg-video-v4l               0.2.0-3                        X.Org X server -- Video 4 Linux display driv
ii  xserver-xorg-video-vesa              1:2.2.1-1                      X.Org X server -- VESA display driver
ii  xserver-xorg-video-vmware            1:10.16.7-1                    X.Org X server -- VMware display driver
ii  xserver-xorg-video-voodoo            1:1.2.2-1                      X.Org X server -- Voodoo display driver


modprobe -l | grep -i drm



modprobe -l | grep -i radeon


glxinfo 2>&1

No protocol specified
Error: unable to open display :0.0


cat /var/log/Xorg.0.log | grep "Direct rendering enabled"

(II) RADEONHD(0): Direct rendering enabled

### I didn't put everything for radeon. only those i thought important###
cat /var/log/Xorg.0.log | grep -i radeon

(**) |   |-->Device "Radeon_x1950_Pro[0]"                 
(--) PCI:*(0:1:0:0) 1002:7280:1462:0762 ATI Technologies Inc RV570 [Radeon X1950 Pro] rev 0, Mem @ 0xd0000000/268435456, 0xfbce0000/65536, I/O @ 0x0000c000/256, BIOS @ 0x????????/131072                                                                                                                                                                     
(II) LoadModule: "radeonhd"                                                                                                                                                    
(II) Loading /usr/lib/xorg/modules/drivers//                                                                                                                    
(II) Module radeonhd: vendor="AMD GPG"                                                                                                                                         


(II) RADEONHD(0): Unknown card detected: 0x7280:0x1462:0x0762.                                                                                                                 
        please contact to help rectify this.                                                                                                             
(--) RADEONHD(0): Detected an RV570 on an unidentified card                                                                                                                    
(II) RADEONHD(0): Mapped IO @ 0xfbce0000 to 0xb7b04000 (size 0x00010000)                                                                                                       
(II) RADEONHD(0): PCIE Card Detected                                                                                                                                           


cat /etc/X11/xorg.conf

Section "ServerLayout"
	Identifier     "Default Layout"
	Screen      0  "Samsung-Screen[0]" 0 0
	InputDevice    "Generic Keyboard"
	InputDevice    "Configured Mouse"
#	Option "AIGLX" "on" #->Enables Xorg's AIGLX rendering technic


Section "Module"
	Load  "dbe"
	Load  "i2c"
	Load  "bitmap"
	Load  "ddc"
	Load  "dri"
	Load  "extmod"
	Load  "freetype"
	Load  "glx"
	Load  "int10"
	Load  "vbe"

#                   Monitor(s)                   *
Section "Monitor"
        Identifier   "Samsung-Monitor[0]"
        Option      "VendorName" "ATI Proprietary Driver"
        Option      "ModelName" "Generic Autodetecting Monitor"
        Option      "DPMS" "true"

### MONITOR 2 ###
#Section "Monitor"
#        Identifier   "NFREN"
#        Option      "DPMS"

#               Device Sections                  *

### MAIN GC #
Section "Device"
        Identifier  "Radeon_x1950_Pro[0]"
#	Driver      "vesa"
        Driver      "radeonhd"
        Option      "XAANoOffscreenPixmaps" "true"
#       Option "HPD" "off"
#	BusID       "PCI:1:0:1"
#	BusID       "PCI:1:0:0"

#                   Screen(s)                    *

Section "Screen"
        Identifier "Samsung-Screen[0]"
        Device     "Radeon_x1950_Pro[0]"
        Monitor    "Samsung-Monitor[0]"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24

Section "DRI"
        Mode         0666

Section "Extensions"
        Option  "Composite" "Enable"
Thanks for help. And please pardon me for my english. I try to do my best.

Last edited by matal0; 09-01-2009 at 08:45 AM. Reason: I have found my error...
Old 09-02-2009, 08:42 AM   #2
LQ Guru
Registered: Oct 2005
Location: Northeast Ohio
Distribution: linuxdebian
Posts: 7,248
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Thanks for posting that you solved the issue, but it would be nice if you posted HOW you solved it. that way someone else may be able to benefit from your success..

Thanks !!
Old 09-02-2009, 08:51 AM   #3
the trooper
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Registered: Jun 2006
Location: England
Distribution: Debian Bullseye
Posts: 1,508

Rep: Reputation: Disabled

Please don't laugh...

I run glxinfo as root (instead of running it as a user) so that's why i get the message 'unable to open display'.... :/
Everything is ok !
I think op already has.........
Old 09-02-2009, 05:39 PM   #4
LQ Guru
Registered: Oct 2005
Location: Northeast Ohio
Distribution: linuxdebian
Posts: 7,248
Blog Entries: 5

Rep: Reputation: 191Reputation: 191
Gah I guess I missed it at the top of the post... :/
Old 09-04-2009, 07:45 PM   #5
Registered: May 2009
Posts: 147

Rep: Reputation: 18
interestingly, there was a xserver where there was an ability to run x programs as root.


display, dri, glxinfo, radeonhd, xorg

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