Xorg changes? Nouveaux prefered over NV? How can I tell?
Alan Chandler
mythtv backend/frontend combination.
Yesterday, after a long overdue aptitude update, I noticed the video
playing rather slow.
I had previously configured the nvidia kernel module to run because it
seem to perform better with mythtv
Looking at my Xorg.0.log file, it appears that the nv driver is being
loaded, but then unloaded and glx also fails to load. the nouveau
driver also appears to be loaded (I can see it starting up and I don't
see it failing - although the vesa driver also seems to start up.
(==) Matched nouveau as autoconfigured driver 0
(==) Matched nv as autoconfigured driver 1
(==) Matched vesa as autoconfigured driver 2
(==) Matched fbdev as autoconfigured driver 3
(==) Assigned the driver to the xf86ConfigLayout
(II) LoadModule: "nouveau"
(II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
(II) Module nouveau: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 0.0.15
Module class: X.Org Video Driver
ABI class: X.Org Video Driver, version 6.0
(II) LoadModule: "nv"
(II) Loading /usr/lib/xorg/modules/drivers/nv_drv.so
(II) Module nv: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 2.1.17
Module class: X.Org Video Driver
ABI class: X.Org Video Driver, version 6.0
...
further down the file, and with no warning as to why
(II) UnloadModule: "nv"
(II) Unloading /usr/lib/xorg/modules/drivers/nv_drv.so
...
(EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not
found)
I have the following in /etc/modprobe.d/nvidia-kernel-common.conf
alias char-major-195* nvidia
options nvidia NVreg_DeviceFileUID=0 NVreg_DeviceFileGID=44
NVreg_DeviceFileMode=0660
# To enable FastWrites and Sidebus addressing, uncomment these lines
# options nvidia NVreg_EnableAGPSBA=1
# options nvidia NVreg_EnableAGPFW=1
# see #580894
blacklist nouveau
Which I seem to remember was a previous attempt to ensure the nouveau
driver didn't load. However an lsmod definitely shows it to be there.
Anyone any ideas as to what could be wrong.
--
Alan Chandler
http://www.chandlerfamily.org.uk
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Sven Joachim
> I have a sqeeze system running as (amongst lots of other things) a
> mythtv backend/frontend combination.
>
> Yesterday, after a long overdue aptitude update, I noticed the video
> playing rather slow.
>
> I had previously configured the nvidia kernel module to run because it
> seem to perform better with mythtv
Was there an upgrade of nvidia-glx or the kernel? Also, do you use the
nvidia-* packages from non-free, or have you run Nvidia's installer?
This is pretty normal, although you should specify the nvidia driver in
/etc/X11/xorg.conf, preventing all the probing of other drivers in the
first place. Do you even have an xorg.conf?
> (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver
> not found)
You will not be able to run OpenGL programs.
> I have the following in /etc/modprobe.d/nvidia-kernel-common.conf
>
> alias char-major-195* nvidia
> options nvidia NVreg_DeviceFileUID=0 NVreg_DeviceFileGID=44
> NVreg_DeviceFileMode=0660
> # To enable FastWrites and Sidebus addressing, uncomment these lines
> # options nvidia NVreg_EnableAGPSBA=1
> # options nvidia NVreg_EnableAGPFW=1
>
> # see #580894
> blacklist nouveau
>
>
> Which I seem to remember was a previous attempt to ensure the nouveau
> driver didn't load. However an lsmod definitely shows it to be there.
Blacklisting a kernel module only ensures that udev won't load it
(because it runs modprobe with the "-b" switch). It does not prevent
loading the module by other means (such as by the X server, who runs
modprobe _without_ the "-b" switch).
Sven
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Alan Chandler
> On 2010-12-20 18:58 +0100, Alan Chandler wrote:
>> I had previously configured the nvidia kernel module to run because it
>> seem to perform better with mythtv
>
> Was there an upgrade of nvidia-glx or the kernel? Also, do you use the
> nvidia-* packages from non-free, or have you run Nvidia's installer?
Its the nvidia-* packages from non-free
>
>> Looking at my Xorg.0.log file, it appears that the nv driver is being
...
>>
>> further down the file, and with no warning as to why
>> (II) UnloadModule: "nv"
>> (II) Unloading /usr/lib/xorg/modules/drivers/nv_drv.so
>> ...
>
> This is pretty normal, although you should specify the nvidia driver in
> /etc/X11/xorg.conf, preventing all the probing of other drivers in the
> first place. Do you even have an xorg.conf?
No xorg.conf, so its doing it automatically.
I am not worried about all the probing etc - unless it gets the wrong
answer. This is in essence a headless server which runs 24/7 so hardly
ever restarts. I have gdm3 start up and automatically start and restart
if it exits) mythwelcome, which just sits there on the "console" - which
effectively acts as my local TV screen. Its only used to run
mythtv-frontend.
>
>> (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver
>> not found)
>
> You will not be able to run OpenGL programs.
No matter - although I don't think it failed before.
>
>> I have the following in /etc/modprobe.d/nvidia-kernel-common.conf
>>
>> alias char-major-195* nvidia
>> options nvidia NVreg_DeviceFileUID=0 NVreg_DeviceFileGID=44
>> NVreg_DeviceFileMode=0660
>> # To enable FastWrites and Sidebus addressing, uncomment these lines
>> # options nvidia NVreg_EnableAGPSBA=1
>> # options nvidia NVreg_EnableAGPFW=1
>>
>> # see #580894
>> blacklist nouveau
>>
>>
>> Which I seem to remember was a previous attempt to ensure the nouveau
>> driver didn't load. However an lsmod definitely shows it to be there.
>
> Blacklisting a kernel module only ensures that udev won't load it
> (because it runs modprobe with the "-b" switch). It does not prevent
> loading the module by other means (such as by the X server, who runs
> modprobe _without_ the "-b" switch).
Does this mean that I really ought to make an xorg.conf ?
--
Alan Chandler
http://www.chandlerfamily.org.uk
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Sven Joachim
> On 20/12/10 18:37, Sven Joachim wrote:
>> This is pretty normal, although you should specify the nvidia driver in
>> /etc/X11/xorg.conf, preventing all the probing of other drivers in the
>> first place. Do you even have an xorg.conf?
>
> No xorg.conf, so its doing it automatically.
I wonder how (or rather if) this ever worked.
>> Blacklisting a kernel module only ensures that udev won't load it
>> (because it runs modprobe with the "-b" switch). It does not prevent
>> loading the module by other means (such as by the X server, who runs
>> modprobe _without_ the "-b" switch).
>
> Does this mean that I really ought to make an xorg.conf ?
If nouveau does not suite you and you want the proprietary driver, this
is indeed necessary, X will not probe non-free drivers for you. The
file only needs to be four lines long:
--8<---------------cut here---------------start------------->8---
Section "Device"
Identifier "NVidia Card"
Driver "nvidia"
EndSection
--8<---------------cut here---------------end--------------->8---
Sven
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Alan Chandler
?
>
> If nouveau does not suite you and you want the proprietary driver, this
> is indeed necessary, X will not probe non-free drivers for you. The
> file only needs to be four lines long:
>
> --8<---------------cut here---------------start------------->8---
> Section "Device"
> Identifier "NVidia Card"
> Driver "nvidia"
> EndSection
> --8<---------------cut here---------------end--------------->8---
>
Unfortunately the nouveau driver seems to be too slow to display the TV
video. But I added this above to an xorg.conf and it works great. Thanks
--
Alan Chandler
http://www.chandlerfamily.org.uk
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