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Are you sure? yes no
Screen not turned on in kernel 2.6.35
Ad
Hi, when I use kernel 2.6.35 my screen (connected via DVI) is not turned on. Everything else works fine so I can ssh into the machine and safely shut it down. This did not happen with 2.6.34. However I know that the issue is caused by that commit http://git.kernel.org/?p=linux/kernel/git/tor... If I revert that patch everything works as expected. My graphics card is 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) The interesting dmesg part is i915 0000:00:02.0: BAR 6: can't assign [??? 0x00000000 flags 0x0] (bogus alignment) [drm] failed to find VBIOS tables [drm] initialized overlay support No connectors reported connected with modes [drm] Cannot find any crtc or sizes - going 1024x768 Console: switching to colour frame buffer device 128x48 and xrandr shows Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096 VGA1 disconnected (normal left inverted right x axis y axis) DVI1 disconnected (normal left inverted right x axis y axis)
On Sat, 7 Aug 2010 20:09:32 +0200 Paul Neumann wrote: > Hi, > > when I use kernel 2.6.35 my screen (connected via DVI) is not turned on. Everything else works fine so I can ssh into the machine and safely shut it down. This did not happen with 2.6.34. However I know that the issue is caused by that commit > > http://git.kernel.org/?p=linux/kernel/git/tor... > > If I revert that patch everything works as expected. > > My graphics card is > > 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) > > The interesting dmesg part is > > i915 0000:00:02.0: BAR 6: can't assign [??? 0x00000000 flags 0x0] (bogus alignment) > [drm] failed to find VBIOS tables > [drm] initialized overlay support > No connectors reported connected with modes > [drm] Cannot find any crtc or sizes - going 1024x768 > Console: switching to colour frame buffer device 128x48 > > and xrandr shows > > Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096 > VGA1 disconnected (normal left inverted right x axis y axis) > DVI1 disconnected (normal left inverted right x axis y axis)Can you file a bug for this at bugs.freedesktop.org so it doesn't get lost? Adam's commit looks ok in general, but maybe your VBIOS is lying to us in this case?
On Mon, 2010-08-09 at 09:39 -0700, Jesse Barnes wrote:
> On Sat, 7 Aug 2010 20:09:32 +0200 Paul Neumann wrote:
> > i915 0000:00:02.0: BAR 6: can't assign [??? 0x00000000 flags 0x0] (bogus alignment)
> > [drm] failed to find VBIOS tables
> > [drm] initialized overlay support
> > No connectors reported connected with modes
> > [drm] Cannot find any crtc or sizes - going 1024x768
> > Console: switching to colour frame buffer device 128x48
> >
> > and xrandr shows
> >
> > Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
> > VGA1 disconnected (normal left inverted right x axis y axis)
> > DVI1 disconnected (normal left inverted right x axis y axis)
>
> Can you file a bug for this at bugs.freedesktop.org so it doesn't get
> lost?
>
> Adam's commit looks ok in general, but maybe your VBIOS is lying to us
> in this case?It's not that it's lying, it's that we don't _have_ one. The "BAR 6"
message is the PCI layer telling us there's no space for the VBIOS.
- ajax
On Mon, 09 Aug 2010 14:08:59 -0400 Adam Jackson wrote: > On Mon, 2010-08-09 at 09:39 -0700, Jesse Barnes wrote: > > On Sat, 7 Aug 2010 20:09:32 +0200 Paul Neumann wrote: > > > i915 0000:00:02.0: BAR 6: can't assign [??? 0x00000000 flags 0x0] (bogus alignment) > > > [drm] failed to find VBIOS tables > > > [drm] initialized overlay support > > > No connectors reported connected with modes > > > [drm] Cannot find any crtc or sizes - going 1024x768 > > > Console: switching to colour frame buffer device 128x48 > > > > > > and xrandr shows > > > > > > Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096 > > > VGA1 disconnected (normal left inverted right x axis y axis) > > > DVI1 disconnected (normal left inverted right x axis y axis) > > > > Can you file a bug for this at bugs.freedesktop.org so it doesn't get > > lost? > > > > Adam's commit looks ok in general, but maybe your VBIOS is lying to us > > in this case? > > It's not that it's lying, it's that we don't _have_ one. The "BAR 6" > message is the PCI layer telling us there's no space for the VBIOS.Oops missed that, yeah it would cause problems unless we could get at the shadow at 0xc0000.
On Mon, Aug 09, 2010 at 11:19:43AM -0700, Jesse Barnes wrote: > On Mon, 09 Aug 2010 14:08:59 -0400 > Adam Jackson wrote: > > > On Mon, 2010-08-09 at 09:39 -0700, Jesse Barnes wrote: > > > On Sat, 7 Aug 2010 20:09:32 +0200 Paul Neumann wrote: > > > > i915 0000:00:02.0: BAR 6: can't assign [??? 0x00000000 flags 0x0] (bogus alignment) > > > > [drm] failed to find VBIOS tables > > > > [drm] initialized overlay support > > > > No connectors reported connected with modes > > > > [drm] Cannot find any crtc or sizes - going 1024x768 > > > > Console: switching to colour frame buffer device 128x48 > > > > > > > > and xrandr shows > > > > > > > > Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096 > > > > VGA1 disconnected (normal left inverted right x axis y axis) > > > > DVI1 disconnected (normal left inverted right x axis y axis) > > > > > > Can you file a bug for this at bugs.freedesktop.org so it doesn't get > > > lost? > > > > > > Adam's commit looks ok in general, but maybe your VBIOS is lying to us > > > in this case? > > > > It's not that it's lying, it's that we don't _have_ one. The "BAR 6" > > message is the PCI layer telling us there's no space for the VBIOS. > > Oops missed that, yeah it would cause problems unless we could get at > the shadow at 0xc0000. > > -- > Jesse Barnes, Intel Open Source Technology CenterAlright I have filed a bug (https://bugs.freedesktop.org/show_bug.cgi?id=...), please let me know if I missed something.