Re: stuck in boot with i915drmkms on DVI

Same issue on FreeBSD before:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230032
The i915drm of 13.2 detects DVI well on this main board.

Should I send-pr?

-rxg

On Sun, Apr 07, 2024 at 02:31:17PM +0800, Rui-Xiang Guo wrote:
> Hi,
> It happened on amd64 10.0, not yet tested on i386. No matter what I set display
> output as "Auto" or "DVI" only in the BIOS, they had the same symptoms.
> Here was the debug output:
> 21294224+783272+1313880 [939539+1397208+1023446]=0x1b350c0
> [   1.0000000] WARNING: system needs entropy for security; see entropy(7)
> [   1.0000000] fatal breakpoint trap in supervisor mode
> [   1.0000000] trap type 1 code 0 rip 0xffffffff80235385 cs 0x8 rflags 0x202 cr2 0 ilevel 0x8 rsp 0xffffffff81d3ceb0
> [   1.0000000] curlwp 0xffffffff8188ac80 pid 0.0 lowest kstack 0xffffffff81d372c0
> Stopped in pid 0.0 (system) at  netbsd:breakpoint+0x5:  leave
> breakpoint() at netbsd:breakpoint+0x5
> init_x86_64() at netbsd:init_x86_64+0x579
> ds          24f0
> es          2f
> fs          1c0
> gs          1000
> rdi         8
> rsi         2
> rbp         ffffffff81d3ceb0
> rbx         1f
> rdx         0
> rcx         8000000001d8e021
> rax         0
> r8          0
> r9          8
> r10         ffffffff80201590    Xintr_legacy15
> r11         1551d8
> r12         ffffd580000011f0
> r13         ffffd58000001000
> r14         ffffffff81d37000
> r15         0
> rip         ffffffff80235385    breakpoint+0x5
> cs          8
> rflags      202
> rsp         ffffffff81d3ceb0
> ss          10
> netbsd:breakpoint+0x5:  leave
> 
> The main board uses 945GME chipset and works well with VGA.
> The display related dmesg is listed as below:
> [     1.000765] pci0 at mainbus0 bus 0: configuration mode 1
> [     1.000765] pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
> [     1.000765] pchb0 at pci0 dev 0 function 0: Intel 82945GME Host Bridge (rev. 0x03)
> [     1.000765] agp0 at pchb0: i915-family chipset
> [     1.000765] agp0: detected 7932k stolen memory
> [     1.000765] agp0: aperture at 0xd0000000, size 0x10000000
> [     1.000765] i915drmkms0 at pci0 dev 2 function 0: Intel 82945GME Integrated Graphics Device (rev. 0x03)
> [     1.000765] Intel 82945GM/PM/GMS Integrated Graphics Device (miscellaneous display, revision 0x03) at pci0 dev 2 function 1 not configured
> [     5.928802] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [     5.928802] [drm] Driver supports precise vblank timestamp query.
> [     5.928802] [drm] Failed to find VBIOS tables (VBT)
> [     5.928802] i915drmkms0: interrupting at ioapic0 pin 16 (i915drmkms0)
> [     5.928802] WARNING: NVRAM century is 12 but RTC year is 2024
> [     5.938833] [drm] Initialized overlay support.
> [     5.938833] [drm] Initialized i915 1.6.0 20200114 for i915drmkms0 on minor 0
> [     6.049288] intelfb0 at i915drmkms0
> [     6.049288] [drm] DRM_I915_DEBUG enabled
> [     6.049288] [drm] DRM_I915_DEBUG_GEM enabled
> [     6.049288] intelfb0: framebuffer at 0xd0009000, size 1920x1080, depth 32, stride 7680
> [     6.469692] wsdisplay0 at intelfb0 kbdmux 1: console (default, vt100 emulation), using wskbd0
> [     6.509723] wsmux1: connecting to wsdisplay0
> 
> Any ideas?
> 
> -rxg