I installed CentOS 6 to Acer 7750 laptop, which has Intel Sandybridge CPU ( i5-2410M) with integrated Intel HD Graphics 3000.
By default X won't use intel driver for graphics, but vesa instead, which limits the resolution to 1024x768. I tried to force the use of intel driver by writing a xorg.cof file, but then X doesn't start at all.
I updated libdrm and xorg-x11-drv-intel from elrepo. This intel driver 2.15 is newer than in Fedora 15 Live CD, and with it the graphics work properly.
The problem seems to be related with i915 kernel module:
(==) Using config file: "/etc/X11/xorg.conf" FATAL: Error inserting i915 (/lib/modules/2.6.32-71.29.1.el6.x86_64/kernel/drivers/gpu/drm/i915/i915.ko): No such device (EE) No devices detected.
I've tried kernels from CentOS Base repo, and CentOS-Plus repo too, no difference.
I found a similar old bugzilla entry: https://bugzilla.redhat.com/show_bug.cgi?id=495524
Somewhere (don't find the source any more) I saw that i915 would need intel_agp module, and that would be the problem. This goes a little bit beyond my knowledge level.
Maybe this has been fixed somewhere about a year ago: https://patchwork.kernel.org/patch/120293/ But is this patch something that is still missing from latest CentOS kernels?
If someone has a solution for this, please advice.
Regards, Timo
On 30/07/11 14:40, Timo Neuvonen wrote:
I installed CentOS 6 to Acer 7750 laptop, which has Intel Sandybridge CPU ( i5-2410M) with integrated Intel HD Graphics 3000.
By default X won't use intel driver for graphics, but vesa instead, which limits the resolution to 1024x768. I tried to force the use of intel driver by writing a xorg.cof file, but then X doesn't start at all.
I updated libdrm and xorg-x11-drv-intel from elrepo. This intel driver 2.15 is newer than in Fedora 15 Live CD, and with it the graphics work properly.
The problem seems to be related with i915 kernel module:
(==) Using config file: "/etc/X11/xorg.conf" FATAL: Error inserting i915 (/lib/modules/2.6.32-71.29.1.el6.x86_64/kernel/drivers/gpu/drm/i915/i915.ko): No such device (EE) No devices detected.
That looks to me like the kernel driver also needs updating to support your hardware.
The problem is that isn't trivial due to the dependencies that module has:
$ modinfo i915 | grep depends depends: drm,drm_kms_helper,i2c-core,video,i2c-algo-bit
So you'd also need to update those modules and their dependencies, and modules that depend on those modules might then break. As I said, not trivial. IMHO really you need to be running a newer kernel and/or distro with native support.
On Saturday 30 July 2011 16:40:45 Timo Neuvonen wrote:
(==) Using config file: "/etc/X11/xorg.conf" FATAL: Error inserting i915 (/lib/modules/2.6.32-71.29.1.el6.x86_64/kernel/drivers/gpu/drm/i915/i915.ko): No such device (EE) No devices detected.
You need at least a 2.6.38 kernel.
On Sun, Jul 31, 2011 at 12:29:59PM +0200, Marc Deop wrote:
On Saturday 30 July 2011 16:40:45 Timo Neuvonen wrote:
(==) Using config file: "/etc/X11/xorg.conf" FATAL: Error inserting i915 (/lib/modules/2.6.32-71.29.1.el6.x86_64/kernel/drivers/gpu/drm/i915/i915.ko): No such device (EE) No devices detected.
You need at least a 2.6.38 kernel.
And in case of CentOS it means Redhat needs to backport the driver to el6 2.6.32 kernel.
-- Pasi
"Pasi Kärkkäinen" pasik@iki.fi kirjoitti viestissä news:20110731184737.GP32373@reaktio.net...
On Sun, Jul 31, 2011 at 12:29:59PM +0200, Marc Deop wrote:
On Saturday 30 July 2011 16:40:45 Timo Neuvonen wrote:
(==) Using config file: "/etc/X11/xorg.conf" FATAL: Error inserting i915 (/lib/modules/2.6.32-71.29.1.el6.x86_64/kernel/drivers/gpu/drm/i915/i915.ko): No such device (EE) No devices detected.
You need at least a 2.6.38 kernel.
And in case of CentOS it means Redhat needs to backport the driver to el6 2.6.32 kernel.
I admit that my secret dream is that RH already would have done that for RHEL 6.1 kernels, otherwise it will take rather long time. AFAIK, they backport things like that only for new minor versions, so if it's not in 6.1 in the beginning, it won't be there before 6.2?
As a quick workaround I set up a dirty bomb: installed 2.6.38 from Fedora 15 updates repo -so far it seems to work, and I wanted to have a very CentOS-like system for testing certain things in a portable hardware (easy to carry my virtual test machine farm to home in the evening). This is just a preliminary tester, not a production system, so it won't be a big problem if it crashes some day.
-- TiN
On Sun, 31 Jul 2011, Timo Neuvonen wrote:
You need at least a 2.6.38 kernel.
And in case of CentOS it means Redhat needs to backport the driver to el6 2.6.32 kernel.
I admit that my secret dream is that RH already would have done that for RHEL 6.1 kernels, otherwise it will take rather long time. AFAIK, they backport things like that only for new minor versions, so if it's not in 6.1 in the beginning, it won't be there before 6.2?
Is this good at all?
http://en.wikipedia.org/wiki/Dynamic_Kernel_Module_Support
Dynamic Kernel Module Support (DKMS) is a framework used to generate Linux kernel modules whose sources do not generally reside in the Linux kernel source tree. DKMS enables kernel device drivers to be automatically rebuilt when a new kernel is installed.
An essential feature of DKMS is that it automatically recompiles all DKMS modules if a new kernel version is installed. This allows drivers and devices outside of the mainline kernel to continue working after a Linux kernel upgrade.
Another benefit of DKMS is that it allows one to install a new driver on an existing system, running an arbitrary kernel version, without any need for manual compilation or precompiled packages provided by the vendor.
I have DKMS installed on Centos 5.6, but have not actually got round to reading all the docs for it yet. I must have thought I needed it at one time for something.
Installed Packages Name : dkms Arch : noarch Version : 2.1.1.2 Release : 1.el5.rf Size : 232 k Repo : installed Summary : Dynamic Kernel Module Support Framework URL : http://linux.dell.com/dkms/ License : GPL
Kind Regards,
Keith
----------------------------------------------------------------- Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk
All email addresses are challenge-response protected with TMDA [http://tmda.net] -----------------------------------------------------------------
On Sun, Jul 31, 2011 at 11:28:12PM +0300, Timo Neuvonen wrote:
"Pasi Kärkkäinen" pasik@iki.fi kirjoitti viestissä news:20110731184737.GP32373@reaktio.net...
On Sun, Jul 31, 2011 at 12:29:59PM +0200, Marc Deop wrote:
On Saturday 30 July 2011 16:40:45 Timo Neuvonen wrote:
(==) Using config file: "/etc/X11/xorg.conf" FATAL: Error inserting i915 (/lib/modules/2.6.32-71.29.1.el6.x86_64/kernel/drivers/gpu/drm/i915/i915.ko): No such device (EE) No devices detected.
You need at least a 2.6.38 kernel.
And in case of CentOS it means Redhat needs to backport the driver to el6 2.6.32 kernel.
I admit that my secret dream is that RH already would have done that for RHEL 6.1 kernels, otherwise it will take rather long time. AFAIK, they backport things like that only for new minor versions, so if it's not in 6.1 in the beginning, it won't be there before 6.2?
Correct.
You could grab the el6.1 kernel src.rpm from ftp.redhat.com and read the changelog.. (if redhat still lists all the changes in the changelog, now when they don't ship separate patches anymore..)
As a quick workaround I set up a dirty bomb: installed 2.6.38 from Fedora 15 updates repo -so far it seems to work, and I wanted to have a very CentOS-like system for testing certain things in a portable hardware (easy to carry my virtual test machine farm to home in the evening). This is just a preliminary tester, not a production system, so it won't be a big problem if it crashes some day.
-- Pasi
You need at least a 2.6.38 kernel.
And in case of CentOS it means Redhat needs to backport the driver to el6 2.6.32 kernel.
I admit that my secret dream is that RH already would have done that for RHEL 6.1 kernels, otherwise it will take rather long time. AFAIK, they backport things like that only for new minor versions, so if it's not in 6.1 in the beginning, it won't be there before 6.2?
Correct.
You could grab the el6.1 kernel src.rpm from ftp.redhat.com and read the changelog.. (if redhat still lists all the changes in the changelog, now when they don't ship separate patches anymore..)
Looks like it's included in RHEL 6.1: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.1_Releas...
-- TiN
-
Keith Roberts -
Marc Deop -
Ned Slider -
Pasi Kärkkäinen -
Timo Neuvonen