Re: some kernel issues

Re: some kernel issues

[Werner LEMBERG]

[kernel 2.6.30-rc4-14-vanilla from openSuSE factory on top of
openSuSE 11.1]


With my 945GM intel graphics card, I don't get TTYs which I could
switch to with Ctrl-Alt-Shift-F1, for example, after X has started.
Only F7 to switch back to graphics mode works fine.  In particular, I
don't see any boot messages at start-up.  This has worked fine with a
previous kernel like 2.6.27.21.

Are there new boot parameters to add or is this a bug?  It seems that
`vga=0x31a' fails (which openSuSE's yast installer provides) since
without it I can see boot messages.

BTW, for `vga=0x31a' I get

  Console: colour dummy device 80x25

in the log file, while without this parameter I get

  Console: colour VGA+ 80x25


    Werner

Re: some kernel issues

[Werner LEMBERG]

> [kernel 2.6.30-rc4-14-vanilla from openSuSE factory on top of
> openSuSE 11.1]
> 
> 
> With my 945GM intel graphics card, I don't get TTYs which I could
> switch to with Ctrl-Alt-Shift-F1, for example, after X has started.
> Only F7 to switch back to graphics mode works fine.  In particular,
> I don't see any boot messages at start-up.  This has worked fine
> with a previous kernel like 2.6.27.21.

I've filed a bug report.

  http://bugzilla.kernel.org/show_bug.cgi?id=13249


     Werner

Re: some kernel issues

[Dave Airlie]

On Tue, May 5, 2009 at 2:26 AM, Werner LEMBERG <wl@gnu.org> wrote:
>
> [kernel 2.6.30-rc4-14-vanilla from openSuSE factory on top of
> openSuSE 11.1]
>
>
> With my 945GM intel graphics card, I don't get TTYs which I could
> switch to with Ctrl-Alt-Shift-F1, for example, after X has started.
> Only F7 to switch back to graphics mode works fine.  In particular, I
> don't see any boot messages at start-up.  This has worked fine with a
> previous kernel like 2.6.27.21.
>
> Are there new boot parameters to add or is this a bug?  It seems that
> `vga=0x31a' fails (which openSuSE's yast installer provides) since
> without it I can see boot messages.
>
> BTW, for `vga=0x31a' I get
>
>  Console: colour dummy device 80x25
>
> in the log file, while without this parameter I get
>
>  Console: colour VGA+ 80x25

Make sure you haven't enabled kernel mode setting.

CONFIG_DRM_I915_KMS

Dave.

>
>
>    Werner
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
>

Re: some kernel issues

[Werner LEMBERG]

From: Dave Airlie <airlied@gmail.com>
Subject: Re: some kernel issues
Date: Tue, 5 May 2009 20:44:18 +1000

>> With my 945GM intel graphics card, I don't get TTYs which I could
>> switch to with Ctrl-Alt-Shift-F1, for example, after X has started.
>> Only F7 to switch back to graphics mode works fine.  In particular,
>> I don't see any boot messages at start-up.  This has worked fine
>> with a previous kernel like 2.6.27.21.
> 
> Make sure you haven't enabled kernel mode setting.
> 
> CONFIG_DRM_I915_KMS

Uuuuh, completely undocumented.  Thanks!  Will check soon.


    Werner

Re: some kernel issues

[Dave Airlie]

On Tue, May 5, 2009 at 9:02 PM, Werner LEMBERG <wl@gnu.org> wrote:
> From: Dave Airlie <airlied@gmail.com>
> Subject: Re: some kernel issues
> Date: Tue, 5 May 2009 20:44:18 +1000
>
>>> With my 945GM intel graphics card, I don't get TTYs which I could
>>> switch to with Ctrl-Alt-Shift-F1, for example, after X has started.
>>> Only F7 to switch back to graphics mode works fine.  In particular,
>>> I don't see any boot messages at start-up.  This has worked fine
>>> with a previous kernel like 2.6.27.21.
>>
>> Make sure you haven't enabled kernel mode setting.
>>
>> CONFIG_DRM_I915_KMS
>
> Uuuuh, completely undocumented.  Thanks!  Will check soon.
>

Huh?

 Choose this option if you want kernel modesetting enabled by default,
 and you have a new enough userspace to support this. Running old
 userspaces with this enabled will cause pain.  Note that this causes
 the driver to bind to PCI devices, which precludes loading things
 like intelfb.

But as you don't have it, it doesn't seem like that is the issue

Dave.

Re: some kernel issues

[Werner LEMBERG]

>>> CONFIG_DRM_I915_KMS
>>
>> Uuuuh, completely undocumented.  Thanks!  Will check soon.
>>
> 
> Huh?
> 
>  Choose this option if you want kernel modesetting enabled by
>  default, and you have a new enough userspace to support this.
>  Running old userspaces with this enabled will cause pain.  Note
>  that this causes the driver to bind to PCI devices, which precludes
>  loading things like intelfb.

Mea culpa, sorry.  I did a grep for `CONFIG_DRM_I915_KMS'.  Now I know
that I have to omit the `CONFIG_' part.


    Werner

Re: some kernel issues

[Werner LEMBERG]

>> With my 945GM intel graphics card, I don't get TTYs which I could
>> switch to with Ctrl-Alt-Shift-F1, for example, after X has started.
>> Only F7 to switch back to graphics mode works fine.  In particular,
>> I don't see any boot messages at start-up.  This has worked fine
>> with a previous kernel like 2.6.27.21.
> 
> Make sure you haven't enabled kernel mode setting.
> 
> CONFIG_DRM_I915_KMS

It's not set.  BTW, CONFIG_DRM_I915 is set to `m'.


    Werner