Created attachment 191301 [details] dmesg i915.preliminary_hw_support=1 4.3-rc7 Hi, i'am trying to make my brand new computer to work with Fedora22 and latest kernel. I've install latest intel graphic firmware from 01.org dmesg show a lot of i915 errors (see attached file). To make the graphical desktop working i have to configure my bios as follow: IGD (Internal Graphic Display) / 256Mo And to boot with kernel parameter i915.preliminary_hw_support=1 I have tried to set the bios to PEG/Multi Monitor (which works but also freeze sometimes with fedora kernel kernel-4.1.10-200.fc22.x86_64 kernel-4.2.3-200.fc22.x86_64). This bios configuration doesn't work (system hang on GDM) with 4.3-rc5/6/7 When the system is frozen, i couldn't switch to any VT (eg ctrl-alt F3), even the reset button wired to my motherboard doesn't work. When the system "work" with new firwmare i can switch to VT (whereas without it it was not possible). I provide you some info and the output of dmesg, tell me if you need more. I'll try to also add dmesg output with drm.debug=14 # uname -a Linux spinabox64.home 4.3.0-rc7 #1 SMP Tue Oct 27 00:24:52 CET 2015 x86_64 x86_64 x86_64 GNU/Linux # dmidecode -q -t 2 |grep -v ^"#" Base Board Information Manufacturer: MSI Product Name: B150M PRO-VDH D3 (MS-7982) Version: 2.0 Serial Number: F916218906 Asset Tag: Default string Features: Board is a hosting board Board is replaceable Location In Chassis: Default string Type: Motherboard # grep "model name" /proc/cpuinfo |uniq model name : Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz # lspci -v |grep -A16 VGA 00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 06) (prog-if 00 [VGA controller]) DeviceName: Onboard IGD Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7982 Flags: bus master, fast devsel, latency 0, IRQ 123 Memory at de000000 (64-bit, non-prefetchable) [size=16M] Memory at c0000000 (64-bit, prefetchable) [size=256M] I/O ports at f000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: [40] Vendor Specific Information: Len=0c <?> Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Capabilities: [100] #1b Capabilities: [200] Address Translation Service (ATS) Capabilities: [300] #13 Kernel driver in use: i915 Kernel modules: i915 # dmesg |grep -i "warning\|failed" |head -3 [ 0.147042] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM [ 7.380582] [drm] failed to retrieve link info, disabling eDP [ 7.543323] WARNING: CPU: 1 PID: 149 at drivers/gpu/drm/i915/intel_pm.c:3668 skl_update_other_pipe_wm+0x1de/0x1f0 [i915]()
Some corrections: i checked my bios, it's set on IGD/128Mo (share memory) Display is also "working" without the i915.preliminary_hw_support=1. I'am using a DualHead Display (xrandr output below, using VGA Sub-d and DVI port). I attached 2 additional dmesg with and without drm.debug=14 kernel argument. $ xrandr Screen 0: minimum 8 x 8, current 3840 x 1200, maximum 32767 x 32767 DP1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm 1920x1200 59.95*+ 1600x1200 60.00 1680x1050 59.95 1280x1024 75.02 72.05 60.02 1440x900 74.98 59.89 1152x864 75.00 1024x768 75.08 70.07 60.00 832x624 74.55 800x600 72.19 75.00 60.32 640x480 75.00 72.81 66.67 60.00 720x400 70.08 HDMI1 disconnected (normal left inverted right x axis y axis) HDMI2 connected primary 1920x1200+1920+0 (normal left inverted right x axis y axis) 518mm x 324mm 1920x1200 59.95*+ 1600x1200 60.00 1680x1050 59.88 1280x1024 75.02 60.02 1280x960 75.04 1024x768 75.08 60.00 800x600 75.00 60.32 640x480 75.00 60.00 720x400 70.08 HDMI3 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis)
Created attachment 191311 [details] dmesg 20151027-20h40.12 Without i915.preliminary_hw_support
Created attachment 191321 [details] dmesg 20151027-20h42.55 Without i915.preliminary_hw_support and with drm.debug=14
Sorry for the delay in response, please file new i915 bugs at the freedesktop.org bugzilla: https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel Please attach the dmesgs in plain text.