On Thu, Feb 14, 2013 at 11:26 AM, Sedat Dilek <sedat.dilek at gmail.com> wrote: > On Wed, Feb 13, 2013 at 12:15 PM, Sedat Dilek <sedat.dilek at gmail.com> wrote: >> Hi, >> >> dunno if this is a problem of i915 or drm, seen with today's next plus >> drm-intel-nightly on top: >> >> $ dmesg | egrep -i 'vga|drm|i915|fbcon|fb0:|fb1:|frame buffer' >> [ 0.169185] vgaarb: device added: >> PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none >> [ 0.169192] vgaarb: loaded >> [ 0.169194] vgaarb: bridge control possible 0000:00:02.0 >> [ 10.753557] [drm] Initialized drm 1.1.0 20060810 >> [ 11.893511] [drm] Memory usable by graphics device = 2048M >> [ 11.893519] i915 0000:00:02.0: setting latency timer to 64 >> [ 11.932298] i915 0000:00:02.0: irq 49 for MSI/MSI-X >> [ 11.932314] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). >> [ 11.932316] [drm] Driver supports precise vblank timestamp query. >> [ 11.932388] vgaarb: device changed decodes: >> PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem >> [ 11.942391] [drm] Wrong MCH_SSKPD value: 0x16040307 >> [ 11.942395] [drm] This can cause pipe underruns and display issues. >> [ 11.942396] [drm] Please upgrade your BIOS to fix this. >> [ 11.958989] fbcon: inteldrmfb (fb0) is primary device >> [ 13.004539] Console: switching to colour frame buffer device 170x48 >> [ 13.007758] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device >> [ 13.007760] i915 0000:00:02.0: registered panic notifier >> [ 13.009289] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 >> [ 13.812079] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off >> [ 124.988792] i915 0000:00:02.0: setting latency timer to 64 >> [ 124.994748] [drm] Wrong MCH_SSKPD value: 0x16040307 >> [ 124.994749] [drm] This can cause pipe underruns and display issues. >> [ 124.994749] [drm] Please upgrade your BIOS to fix this. >> [ 126.654709] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off >> >> Please, have also a look at the attached files! >> > > Hmm, BROKEN BIOS here? > > [ 11.967307] [drm] Wrong MCH_SSKPD value: 0x16040307 > [ 11.967310] [drm] This can cause pipe underruns and display issues. > [ 11.967311] [drm] Please upgrade your BIOS to fix this > > Samsung notebooks seems not to be a good choice these days :-)? > > I have checked last Tuesday the latest available firmware after > upgrading win7 (MS patchday). > > Any other workaround I can do? Nope, and as long as you don't have any underrun display issues there's no need to do anything. This is pretty much just a note for us developers for when people report bugs. Might be we want to tune this down again. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch