Scientific Linux Forum.org



  Reply to this topicStart new topicStart Poll

> Kernel 3.3.0 & bumblebee
hdd
 Posted: Apr 3 2012, 02:02 PM
Quote Post


SLF Rookie
*

Group: Members
Posts: 20
Member No.: 1375
Joined: 14-March 12









Hi all ,
With a bit of surprise I've discovered that the kernel 3.3.0 available on ELRepo Kernel repo , finally fixes all the issues I was having with my touchpad (Inspiron N5110).

I'd like now to have up and running bumblebee as well (which works fine under 2.X series).
I've already tried to uninstall/install kmod-bbswitch , kmod-nvidia without any success......

Any idea ?
Thanks!
L.

P.s
I'm on SL 6.2
PM
^
toracat
 Posted: Apr 3 2012, 02:58 PM
Quote Post


SLF Geek
****

Group: Members
Posts: 302
Member No.: 11
Joined: 10-April 11









The kmod packages offered by ELRepo are compatible with EL kernels. kernel-ml is not kABI-compatible with EL kernels, so kmods would not work there.

Also, I would like to note that kernel-ml is not for production use. It is provided for hardware testing purpose. ELRepo (Alan Bartlett actually) has been doing quite well to keep kernel-ml up to date. However, security updates are not always guaranteed. In fact, kernel-ml for EL5 are all obsolete now because those kernel versions are no longer maintained at kernel.org.

What I'd like you to do is to provide feedback to ELRepo. Then it might be possible that the drivers that enabled your hardware get backported to work with EL kernels and kmods created.

--------------------
ELRepo: repository specializing in hardware support for EL
PMUsers Website
^
hdd
 Posted: Apr 3 2012, 07:00 PM
Quote Post


SLF Rookie
*

Group: Members
Posts: 20
Member No.: 1375
Joined: 14-March 12









Thanks toracat,
I've opened a bug report (request) about it http://elrepo.org/bugs/view.php?id=250
I'll kepp the finger crossed....
Cheers.
L.
PM
^
toracat
 Posted: Apr 3 2012, 07:06 PM
Quote Post


SLF Geek
****

Group: Members
Posts: 302
Member No.: 11
Joined: 10-April 11









Good. I'll make sure it gets assigned to someone. smile.gif

By the way, kernel-ml 3.3.0 is now obsolete. 3.3.1 has been announced here.

--------------------
ELRepo: repository specializing in hardware support for EL
PMUsers Website
^
hdd
 Posted: Apr 4 2012, 08:50 AM
Quote Post


SLF Rookie
*

Group: Members
Posts: 20
Member No.: 1375
Joined: 14-March 12









Cool I'll give it a try this evening wink.gif
Thanks for pushing for it , It would be so nice to have the touchpad working with the graphic card tongue.gif
L.
PM
^
hdd
 Posted: Apr 4 2012, 06:47 PM
Quote Post


SLF Rookie
*

Group: Members
Posts: 20
Member No.: 1375
Joined: 14-March 12









Just found this for gentoo , could it help on porting the alps driver on 2.6 ?

http://sources.gentoo.org/cgi-bin/viewvc.cgi/linux-patches?view=revision&sortby=author&revision=2047
PM
^
tux99
 Posted: Apr 4 2012, 06:58 PM
Quote Post


SLF Moderator
********

Group: Moderators
Posts: 1276
Member No.: 224
Joined: 28-May 11









QUOTE (hdd @ Apr 4 2012, 07:47 PM)
Just found this for gentoo , could it help on porting the alps driver on 2.6 ?

http://sources.gentoo.org/cgi-bin/viewvc.cgi/linux-patches?view=revision&sortby=author&revision=2047


Could be, try that patch with the dkms build you tried previously and see if it works.

--------------------
My personal SL6 repository, specialized in audio/video software: http://pkgrepo.linuxtech.net/el6/
(can be used together with EPEL and ELRepo repositories) - repository mirror: http://linuxsoft.cern.ch/linuxtech/el6/
PM
^
hdd
 Posted: Apr 4 2012, 07:40 PM
Quote Post


SLF Rookie
*

Group: Members
Posts: 20
Member No.: 1375
Joined: 14-March 12









I'd like , but it seems I can't just replace that driver , as it's compiled into the kernel....
PM
^
tux99
 Posted: Apr 4 2012, 09:24 PM
Quote Post


SLF Moderator
********

Group: Moderators
Posts: 1276
Member No.: 224
Joined: 28-May 11









QUOTE (hdd @ Apr 4 2012, 08:40 PM)
I'd like , but it seems I can't just replace that driver , as it's compiled into the kernel....


What do you mean? Sure you can replace (almost) any driver, that's one of the things dkms does automatically if the driver provided with a dkms package matches an existing kernel package driver.
Or are you saying it's not a kernel module but actually in the vmlinuz kernel file?

Edit: ok I see what you mean:

/boot/config-2.6.32-220.7.1.el6.x86_64:
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y

There is not much you can do then other than using a custom kernel package. One thing you could try is report this in redhat's bugzilla pointing them to the gentoo patch. Maybe they add it in the next kernel update.

http://bugzilla.redhat.com (just create yourself an account there, anyone can do that, not just RHEL customers)

--------------------
My personal SL6 repository, specialized in audio/video software: http://pkgrepo.linuxtech.net/el6/
(can be used together with EPEL and ELRepo repositories) - repository mirror: http://linuxsoft.cern.ch/linuxtech/el6/
PM
^
hdd
 Posted: Apr 5 2012, 08:54 AM
Quote Post


SLF Rookie
*

Group: Members
Posts: 20
Member No.: 1375
Joined: 14-March 12









I guess it doesn't make sense to try to compile a kAbi compatible kernel ... is it right ?
The only thing is trying to apply the patch to "a kernel" and then submit it to the bug tracking o ELRepo.
But I've to admit , even if I'm a kind of developer , trying to back port a driver doesn't seems easy at all (not quite my field tho).
L.
PM
^
0 User(s) are reading this topic (0 Guests and 0 Anonymous Users)
0 Members:

Topic Options Reply to this topicStart new topicStart Poll