System: Asus Pro36 or U36, "Nvidia Optimus" hybrid graphics with a gpu in the core i5 processor and a dedicated nvidia geforce 310m graphics card. Software: Next Ubuntu Release (11.04; Natty) with Xorg 7.6, nouveau ddx driver 1:0.0.16+git20110107+b795ca6e-0ubuntu6, libdrm-nouveau1a 2.4.23-1ubuntu5, Kernel 2.6.38-7-generic In 2 out of 3 times, my laptop boots very early to a black screen. When using "nomodeset" it works fine, so it might be a kms-related problem. The laptop is using hybrid graphics. When looking into the dmesg-logs afterwards, I found out, that when the nouveau-driver initialises normally, the boot fails and if the nouveau driver fails, the boot works fine. Yes, this way round! I guess, when nouveau fails (interestingly with "chipset not supported reason" that does not appear the other times), the intel chipset is used. Dmesg-logs when boot fails: [ 2.011009] VGA switcheroo: detected DSM switching method \_SB_.PCI0.PEG1.GFX0 handle [ 2.011083] nouveau 0000:01:00.0: power state changed by ACPI to D0 [ 2.011089] nouveau 0000:01:00.0: power state changed by ACPI to D0 [ 2.011094] nouveau 0000:01:00.0: enabling device (0000 -> 0003) [ 2.011105] nouveau 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 2.011111] nouveau 0000:01:00.0: setting latency timer to 64 [ 2.068960] i915 0000:00:02.0: irq 43 for MSI/MSI-X [ 2.068966] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 2.068971] [drm] Driver supports precise vblank timestamp query. [ 2.200079] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=none:owns=io+mem [ 2.200087] vgaarb: transferring owner from PCI:0000:00:02.0 to PCI:0000:01:00.0 [ 2.349958] Console: switching to colour frame buffer device 170x48 [ 2.352403] fb0: inteldrmfb frame buffer device [ 2.352423] drm: registered panic notifier [ 2.359734] [drm] nouveau 0000:01:00.0: Unsupported chipset 0xffffffff [ 2.360842] nouveau 0000:01:00.0: PCI INT A disabled [ 2.360907] nouveau: probe of 0000:01:00.0 failed with error -22 dmesg-logs when boots fine: [ 2.615806] VGA switcheroo: detected DSM switching method \_SB_.PCI0.PEG1.GFX0 handle [ 2.617276] nouveau 0000:01:00.0: power state changed by ACPI to D0 [ 2.618659] nouveau 0000:01:00.0: power state changed by ACPI to D0 [ 2.620022] nouveau 0000:01:00.0: enabling device (0000 -> 0003) [ 2.621403] nouveau 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 2.622778] nouveau 0000:01:00.0: setting latency timer to 64 [ 2.626107] [drm] nouveau 0000:01:00.0: Detected an NV50 generation card (0x0a8800b1) [ 2.634129] vga_switcheroo: enabled [ 2.635601] [drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PRAMIN [ 2.637066] [drm] nouveau 0000:01:00.0: ... BIOS signature not found [ 2.638520] [drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PROM [ 2.639980] [drm] nouveau 0000:01:00.0: ... BIOS signature not found [ 2.641428] [drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PCIROM [ 2.643010] nouveau 0000:01:00.0: Invalid ROM contents [ 2.644512] [drm] nouveau 0000:01:00.0: ... BIOS signature not found [ 2.645973] [drm] nouveau 0000:01:00.0: Attempting to load BIOS image from ACPI [ 2.890941] [drm] nouveau 0000:01:00.0: ... appears to be valid [ 2.892343] [drm] nouveau 0000:01:00.0: BIT BIOS found [ 2.893732] [drm] nouveau 0000:01:00.0: Bios version 70.18.66.00 [ 2.895112] [drm] nouveau 0000:01:00.0: Pointer to BIT loadval table invalid [ 2.896483] [drm] nouveau 0000:01:00.0: TMDS table version 2.0 [ 2.897844] [drm] nouveau 0000:01:00.0: Found Display Configuration Block version 4.0 [ 2.899205] [drm] nouveau 0000:01:00.0: Raw DCB entry 0: 02014300 00000000 [ 2.900571] [drm] nouveau 0000:01:00.0: Raw DCB entry 1: 02022362 00020010 [ 2.901918] [drm] nouveau 0000:01:00.0: Raw DCB entry 2: 0000000e 00000000 [ 2.903269] [drm] nouveau 0000:01:00.0: DCB connector table: VHER 0x40 5 16 4 [ 2.904607] [drm] nouveau 0000:01:00.0: 0: 0x00000040: type 0x40 idx 0 tag 0xff [ 2.905927] [drm] nouveau 0000:01:00.0: 1: 0x00410146: type 0x46 idx 1 tag 0x51 [ 2.907240] [drm] nouveau 0000:01:00.0: 2: 0x00002261: type 0x61 idx 2 tag 0x08 [ 2.908552] [drm] nouveau 0000:01:00.0: 3: 0x00001330: type 0x30 idx 3 tag 0x07 [ 2.909846] [drm] nouveau 0000:01:00.0: 4: 0x00000400: type 0x00 idx 4 tag 0xff [ 2.911123] [drm] nouveau 0000:01:00.0: 5: 0x00000560: type 0x60 idx 5 tag 0xff [ 2.912394] [drm] nouveau 0000:01:00.0: Adaptor not initialised, running VBIOS init tables. [ 2.913671] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 0 at offset 0xDDBB [ 2.939260] [drm] nouveau 0000:01:00.0: 0xDD22: i2c wr fail: -6 [ 2.962750] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 1 at offset 0xE26E [ 3.072704] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 2 at offset 0xEF2B [ 3.074009] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 3 at offset 0xEF44 [ 3.092760] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 4 at offset 0xF02B [ 3.093950] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table at offset 0xF090 [ 3.141533] [drm] nouveau 0000:01:00.0: 3 available performance level(s) [ 3.142614] [drm] nouveau 0000:01:00.0: 0: memory 135MHz core 135MHz shader 270MHz voltage 850mV [ 3.143698] [drm] nouveau 0000:01:00.0: 1: memory 405MHz core 405MHz shader 810MHz voltage 850mV [ 3.144770] [drm] nouveau 0000:01:00.0: 3: memory 667MHz core 606MHz shader 1468MHz voltage 1000mV [ 3.145856] [drm] nouveau 0000:01:00.0: c: memory 950MHz core 550MHz shader 200MHz voltage 1000mV [ 3.147152] [TTM] Zone kernel: Available graphics memory: 1921146 kiB. [ 3.148321] [TTM] Initializing pool allocator. [ 3.149445] [drm] nouveau 0000:01:00.0: Detected 1024MiB VRAM [ 3.187176] [drm] nouveau 0000:01:00.0: 512 MiB GART (aperture) [ 3.252928] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 3.254017] [drm] No driver support for vblank timestamp query. [ 3.266257] [drm] nouveau 0000:01:00.0: ACPI backlight interface available, not registering our own [ 3.322868] [drm] nouveau 0000:01:00.0: allocated 1024x768 fb: 0x60000000, bo ffff880139461000 [ 3.324049] fb1: nouveaufb frame buffer device [ 3.325169] [drm] Initialized nouveau 0.0.16 20090420 for 0000:01:00.0 on minor 1
the dmesg logs are the other way round: the upper one is when it boots and the other when it doesn't!
This looks like a race between ACPI power-up and nouveau kicking in to detect your card and additionally to that it seems to choose the wrong chip when nouveau loads correctly. Dave, could you please take a look at this? I'm not an expert with optimus.
It appears that this bug report has laid dormant for quite a while. Sorry we haven't gotten to it. Since we fix bugs all the time, chances are pretty good that your issue has been fixed with the latest software. Please give it a shot. (Linux kernel 3.10.7, xf86-video-nouveau 1.0.9, mesa 9.1.6, or their git versions.) If upgrading to the latest isn't an option for you, your distro's bugzilla is probably the right destination for your bug report. In an effort to clean up our bug list, we're pre-emptively closing all bugs that haven't seen updates since 2011. If the original issue remains, please make sure to provide fresh info, see http://nouveau.freedesktop.org/wiki/Bugs/ for what we need to see, and re-open this one. Thanks, The Nouveau Team
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