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Bug #2923

kernel module i915 leads to frozen screen on 15" macbookpro6,2

Added by peeter 9 months ago. Updated 9 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
07/06/2016
Due date:
% Done:

0%


Description

uname:

DragonFly 4.5.0.1285.gb3a17-DEVELOPMENT x86_64

There are two video cards:

---
1. Intel HD graphics: GPU: built-in

Vendor: Intel (0x8086)
Device ID: 0x0046
Revision ID: 0x0018
Bus: builtin
Color LCD:
Display type: LCD
Resolution: 1680x1050
Pixel depth: 32-bit color (ARGB8888)

2. NVIDIA GeForce GT 330M: GPU: PCIe

Bus: PCIe
Revision:
Vendor:
VRAM: 256 MB
---

# pciconf -lv | grep vga

vgapci1@pci0:0:2:0: class=0x030000 card=0x00000000 chip=0x00468086 rev=0x18 hdr=0x00
vgapci0@pci0:1:0:0: class=0x030000 card=0x00c7106b chip=0x0a2910de rev=0xa2 hdr=0x00

---

# kldload i915

gives output about loading:

. . .
[drm] Initialized drm 1.1.0 20060810
[drm] pdev: vendor=0x8086 device=0x0046 rev=0x1
[drm] svendor=0x0000 sdevice=0x0000 irq=16
[drm] Memory usable by graphics device = 2048M
[drm] Supports vblank timestamp caching Rev 2 (21.10.2013)
[drm] Driver supports precise vblank timestamp query.
[drm] failed to find VBIOS tables
tunable drm.video.VGA-1 is not set
. . .
drm1: taking over the fictitious range 0xb0000000-0xc0000000
<6>[drm] GMBUS [gmbus bus panel] timed out, falling back to bit banging on pin 2

<3>EDID block is all zeroes
drm1: warning: VGA-1: EDID block 0 invalid.
kernel: [drm] GMBUS [gmbus bus panel] timed out, falling back to banging on pin 2
kernel: EDID block is all zeroes
drm1: info: No connectors reported connected with modes
<6>[drm] Cannot find any crtc or sizes - going 1024x768
---

After this the system becomes stuck: the keyboard seems to work (ie capslock light responds), but the screen is frozen and cannot get to another vty or type anything anymore. Might be able to ssh to the machine.

History

#1 Updated by peeter 9 months ago

  • Subject changed from kernel module i915 leads to frozen screen 15" macbookpro6,2 to kernel module i915 leads to frozen screen on 15" macbookpro6,2

#2 Updated by peeter 9 months ago

Connecting an external keyboard and hitting Ctrl-Alt-Del restarts the machine.

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