* Re: udev vs nvidia
2004-02-16 20:20 udev vs nvidia Daniel Drake
@ 2004-02-16 20:33 ` Daniel Drake
2004-02-16 20:36 ` claude
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Daniel Drake @ 2004-02-16 20:33 UTC (permalink / raw)
To: linux-hotplug
claude wrote:
> Is :
>
> alias char-major-195* nvidia
>
> present in your /etc/modules.conf ?
>
Yes, well, almost. Here's the relevant parts:
### modules-update: start processing /etc/modules.d/nvidia
# Nvidia drivers support
alias char-major-195 nvidia
alias /dev/nvidiactl char-major-195
# Old nvidia support ...
alias char-major-195 NVdriver
alias /dev/nvidiactl char-major-195
Is the * on char-major-195* important here?
thanks.
Daniel
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: udev vs nvidia
2004-02-16 20:20 udev vs nvidia Daniel Drake
2004-02-16 20:33 ` Daniel Drake
@ 2004-02-16 20:36 ` claude
2004-02-25 21:27 ` Daniel Drake
2004-02-26 16:25 ` MALET JL
3 siblings, 0 replies; 5+ messages in thread
From: claude @ 2004-02-16 20:36 UTC (permalink / raw)
To: linux-hotplug
Daniel Drake wrote:
> Hi,
>
Hi,
> Since switching to udev, I have had problems when starting X relating to
> nvidia drivers. I know this is a tricky situation, with the nvidia
> drivers being closed-source, nobody really knows how they work. If it
> seems likely that this problem is not udev-related, then please tell me,
> and I will go to nvidia instead.
>
> I'm not sure if this is even anything to do with udev. The only reason I
> suspect udev might be involved, is because of the existance of /dev
> nodes seems to play a part.
>
>
> I am running nvidia drivers version 5336 with Martin Schlemmer's patch
> applied to make them export info into sysfs.
> If I manually "modprobe nvidia", then I can see that the /dev/nvidia0
> and /dev/nvidiactl nodes are created. So at this stage it seems to be
> loaded.
>
>
>
> My theory is that X loads the "nvidia" module, and then immediately
> tries to initialize the display and whatever else. But as the nvidia*
> nodes arent in place, it dies.
>
> I am running udev017 on linux 2.6.3-rc2-mm1
>
> Any ideas?
>
Is :
alias char-major-195* nvidia
present in your /etc/modules.conf ?
> cheers,
>
> Daniel
>
>
> -------------------------------------------------------
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> https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel
>
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: udev vs nvidia
2004-02-16 20:20 udev vs nvidia Daniel Drake
2004-02-16 20:33 ` Daniel Drake
2004-02-16 20:36 ` claude
@ 2004-02-25 21:27 ` Daniel Drake
2004-02-26 16:25 ` MALET JL
3 siblings, 0 replies; 5+ messages in thread
From: Daniel Drake @ 2004-02-25 21:27 UTC (permalink / raw)
To: linux-hotplug
If anyone is interested, I have solved the below issue. It turns out that you
are supposed to load the module before starting X (even nvidia say so), and
devfs did this automatically on bootup. So, the nvidia module should be added
to an autoload list, and this issue is not a fault of udev/hotplug.
Daniel
Daniel Drake wrote:
> Hi,
>
> Since switching to udev, I have had problems when starting X relating to
> nvidia drivers. I know this is a tricky situation, with the nvidia
> drivers being closed-source, nobody really knows how they work. If it
> seems likely that this problem is not udev-related, then please tell me,
> and I will go to nvidia instead.
>
> I'm not sure if this is even anything to do with udev. The only reason I
> suspect udev might be involved, is because of the existance of /dev
> nodes seems to play a part.
>
>
> I am running nvidia drivers version 5336 with Martin Schlemmer's patch
> applied to make them export info into sysfs.
> If I manually "modprobe nvidia", then I can see that the /dev/nvidia0
> and /dev/nvidiactl nodes are created. So at this stage it seems to be
> loaded.
>
>
> Ignoring the above situation, on a normal bootup, the nvidia module is
> not loaded at the point where I "startx":
>
> # ls /dev/nvidia*
> no such file or directory
>
> # startx
> XFree86 Version 4.3.0
> Release Date: 27 February 2003
> [snip]
> (=) Using config file: "/etc/X11/XF86Config"
> Using vt 7
> (EE) NVIDIA(0): Failed to initialize the NVIDIA kernel module!
> (EE) NVIDIA(0): *** Aborting ***
> (EE) Screen(s) found, but none have a usable configuration.
>
> Fatal server error:
> no screens found
>
> If I mknod the /dev/nvidia* nodes first, then X is able to start as
> normal. Also, strangely, if I "modprobe nvidia", and then "startx" then
> X starts as normal.
>
> I believe that this problem comes around because the /dev nodes are not
> created quickly enough.
>
> # modprobe nvidia && ls -l /dev/nv*
> ls: /dev/nv*: No such file or directory
>
> # rmmod nvidia
>
> # modprobe nvidia && sleep 2 && ls -l /dev/nv*
> crw-rw-rw- 1 root video 195, 0 Feb 16 19:47 /dev/nvidia0
> crw-rw-rw- 1 root video 195, 255 Feb 16 19:47 /dev/nvidiactl
>
>
> My theory is that X loads the "nvidia" module, and then immediately
> tries to initialize the display and whatever else. But as the nvidia*
> nodes arent in place, it dies.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: udev vs nvidia
2004-02-16 20:20 udev vs nvidia Daniel Drake
` (2 preceding siblings ...)
2004-02-25 21:27 ` Daniel Drake
@ 2004-02-26 16:25 ` MALET JL
3 siblings, 0 replies; 5+ messages in thread
From: MALET JL @ 2004-02-26 16:25 UTC (permalink / raw)
To: linux-hotplug
[-- Attachment #1: Type: text/plain, Size: 3803 bytes --]
Daniel Drake a écrit :
> If anyone is interested, I have solved the below issue. It turns out
> that you are supposed to load the module before starting X (even
> nvidia say so), and devfs did this automatically on bootup. So, the
> nvidia module should be added to an autoload list, and this issue is
> not a fault of udev/hotplug.
>
> Daniel
>
> Daniel Drake wrote:
>
>> Hi,
>>
>> Since switching to udev, I have had problems when starting X relating
>> to nvidia drivers. I know this is a tricky situation, with the nvidia
>> drivers being closed-source, nobody really knows how they work. If it
>> seems likely that this problem is not udev-related, then please tell
>> me, and I will go to nvidia instead.
>>
>> I'm not sure if this is even anything to do with udev. The only
>> reason I suspect udev might be involved, is because of the existance
>> of /dev nodes seems to play a part.
>>
>>
>> I am running nvidia drivers version 5336 with Martin Schlemmer's
>> patch applied to make them export info into sysfs.
>> If I manually "modprobe nvidia", then I can see that the /dev/nvidia0
>> and /dev/nvidiactl nodes are created. So at this stage it seems to be
>> loaded.
>>
>>
>> Ignoring the above situation, on a normal bootup, the nvidia module
>> is not loaded at the point where I "startx":
>>
>> # ls /dev/nvidia*
>> no such file or directory
>>
>> # startx
>> XFree86 Version 4.3.0
>> Release Date: 27 February 2003
>> [snip]
>> (==) Using config file: "/etc/X11/XF86Config"
>> Using vt 7
>> (EE) NVIDIA(0): Failed to initialize the NVIDIA kernel module!
>> (EE) NVIDIA(0): *** Aborting ***
>> (EE) Screen(s) found, but none have a usable configuration.
>>
>> Fatal server error:
>> no screens found
>>
>> If I mknod the /dev/nvidia* nodes first, then X is able to start as
>> normal. Also, strangely, if I "modprobe nvidia", and then "startx"
>> then X starts as normal.
>>
>> I believe that this problem comes around because the /dev nodes are
>> not created quickly enough.
>>
>> # modprobe nvidia && ls -l /dev/nv*
>> ls: /dev/nv*: No such file or directory
>>
>> # rmmod nvidia
>>
>> # modprobe nvidia && sleep 2 && ls -l /dev/nv*
>> crw-rw-rw- 1 root video 195, 0 Feb 16 19:47 /dev/nvidia0
>> crw-rw-rw- 1 root video 195, 255 Feb 16 19:47 /dev/nvidiactl
>>
>>
>> My theory is that X loads the "nvidia" module, and then immediately
>> tries to initialize the display and whatever else. But as the nvidia*
>> nodes arent in place, it dies.
>
>
>
> -------------------------------------------------------
> SF.Net is sponsored by: Speed Start Your Linux Apps Now.
> Build and deploy apps & Web services for Linux with
> a free DVD software kit from IBM. Click Now!
> http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click
> _______________________________________________
> Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net
> Linux-hotplug-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel
here is a solution :
jlm@Sorcerer:~$ cat /etc/udev/nvidia.sh
#!/bin/sh
mknod /dev/nvidia0 c 195 0 -m a+rw
mknod /dev/nvidia1 c 195 1 -m a+rw
mknod /dev/nvidia2 c 195 2 -m a+rw
mknod /dev/nvidia3 c 195 3 -m a+rw
mknod /dev/nvidia4 c 195 4 -m a+rw
mknod /dev/nvidia5 c 195 5 -m a+rw
mknod /dev/nvidia6 c 195 6 -m a+rw
mknod /dev/nvidia7 c 195 7 -m a+rw
mknod /dev/nvidiactl c 195 255 -m a+rw
jlm@Sorcerer:~$ cat /etc/modprobe.conf
install ppp_generic mknod /dev/ppp c 108 0 -m 0666 && modprobe
--ignore-install ppp_generic;
install nvidia /etc/udev/nvidia.sh && modprobe
--ignore-install nvidia;
[...]
note that the same issue occurs with pppd
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^ permalink raw reply [flat|nested] 5+ messages in thread