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Re: kern/53795: i915drmkms causes crash on boot with Atom N270/945GSE netbook
The following reply was made to PR kern/53795; it has been noted by GNATS.
From: Elliott Shue <elliott1787%gmail.com@localhost>
Subject: Re: kern/53795: i915drmkms causes crash on boot with Atom N270/945GSE netbook
Date: Tue, 18 Dec 2018 12:01:00 -0500
Forgot to switch to plain-text, sorry.
On Tue, Dec 18, 2018 at 11:52 AM Elliott Shue <elliott1787%gmail.com@localhost> wrote:
> >I have an LG X110 that has the same CPU/GPU combo in it. I haven't
> >encountered this particular problem with it, curiously.
> I have an Asus EeePC 901 with the same CPU/GPU, it boots fine with the stock kernel as well.
> It is a slightly weird netbook, but shouldn't be too far from the basic Atom N270 system from the time.
> > Hopefully you'll get better results with it.
> Definitely a different result. Still garbage on the screen, but the system actually boots.
> Before the HD activity light would stop and any key press would cause a beep.
> Now I've got ssh access and can maybe provide more useful information.
> [ 6.8815928] kern.module.path=/stand/i386/8.99.27/modules
> [ 6.8815928] kern info: [drm] Memory usable by graphics device = 256M
> [ 6.8815928] kern info: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [ 6.8815928] kern info: [drm] Driver supports precise vblank timestamp query.
> [ 6.8815928] kern info: [drm] failed to find VBIOS tables
> [ 6.8815928] i915drmkms0: interrupting at ioapic0 pin 16 (i915drmkms0)
> [ 6.9116124] kern info: [drm] initialized overlay support
> [ 6.9816621] kern info: [drm] GMBUS [i915 gmbus vga] timed out, falling back to bit banging on pin 2
> [ 7.2418458] intelfb0 at i915drmkms0
> [ 7.2418458] intelfb0: framebuffer at 0xdc167000, size 640x480, depth 32, stride 2560
> [ 7.9723633] kern error: [drm:(/usr/src/sys/external/bsd/drm2/dist/drm/i915/intel_display.c:12659)intel_pipe_config_compare] *ERROR* mismatch in base.adjusted_mode.flags(DRM_MODE_FLAG_PHSYNC) (expected 0, found 1)
> [ 7.9723633] kern error: [drm:(/usr/src/sys/external/bsd/drm2/dist/drm/i915/intel_display.c:12663)intel_pipe_config_compare] *ERROR* mismatch in base.adjusted_mode.flags(DRM_MODE_FLAG_PVSYNC) (expected 0, found 4)
> [ 7.9723633] warning: /usr/src/sys/external/bsd/drm2/dist/drm/i915/intel_display.c:12899: pipe state doesn't match!
> [ 8.0123934] wsdisplay0 at intelfb0 kbdmux 1: console (default, vt100 emulation), using wskbd0
> [ 8.0338052] wsmux1: connecting to wsdisplay0
> Complete dmesg here:
> Any other information I could provide?
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