On Mon, 19 Sep 2016 16:53:22 +0200, Edward wrote in message <CAKENem7t9DwL=ggqrjwtkhpeup8pl_ozyfcklqoyfqwzwo9...@mail.gmail.com>:
> Hi, > > If DNG administrators consider this email not appropriate for the > list, please delete it. > > A kernel error is requesting me to upgrade my HP Probook 4540s UEFI. ..me, I'd try another and pristine kernel, from https://www.kernel.org/ loooooong before messing with boot firmware etc from the SystemD gang, as in "Cui Bono?" from bricking your laptop. ..good _old_ build recipe: https://www.howtoforge.com/kernel_compilation_debian_etch Note the age. ;o) > The error involves the i915 graphics driver. On another laptop, the > one on which I coded simple-netaid, i915 failed to turn on the > backlight for a whole year. However, at that time I found a workaround > using a kernel parameter. I wish I find another kernel parameter that > prevents the current error. Since DNG is read by many who may have > used kernel parameters to override sloppy firmware implementations, I > am posting here for some help. > > The kernel "complains" as follows: > << > [ 7.471266] [drm] Wrong MCH_SSKPD value: 0x16040307 > [ 7.471269] [drm] This can cause pipe underruns and display issues. > [ 7.471270] [drm] Please upgrade your BIOS to fix this. > [ 7.489912] fbcon: inteldrmfb (fb0) is primary device > [ 7.598128] EFI Variables Facility v0.08 2004-May-17 > [ 7.724203] hp_accel: laptop model unknown, using default axes > configuration [ 7.729494] jmb38x_ms 0000:02:00.3: enabling device > (0000 -> 0002) [ 7.757025] [drm:ilk_display_irq_handler] *ERROR* > Pipe A FIFO underrun [ 7.759849] > [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo > underrun on pch transcoder A [ 7.759851] > [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun > >> > > Thanks. > -- ..med vennlig hilsen = with Kind Regards from Arnt Karlsen ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng