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Date: Sun, 21 Nov 2010 10:23:44 +0000 From: Chris Vine <chris@...ne.freeserve.co.uk> To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: kernel 2.6.37-rc2 breaks i915 graphics Hi, With kernel 2.6.37-rc2, i915 graphics usually fails on boot-up after modesetting with my Lenovo S12 netbook which uses the Intel 945GME Express Integrated Graphics Controller. It displays up to the point at which modesetting takes place and then usually goes blank. There may be some kind of race at work here: first, sometimes (maybe 1 times in 4) graphics comes up correctly on a first cold boot, but I have never managed to get it to come up on a warm reboot. Secondly, graphics can be restored when I know (but cannot see) that boot-up has concluded, simply by suspending the laptop and then resuming. Resuming the laptop after a suspend always brings up the graphics correctly. I have not tested against 2.6.37-rc1, so I cannot say whether the problem is there as well. lspci -v gives this: 00:00.0 Host bridge: Intel Corporation Mobile 945GME Express Memory Controller Hub (rev 03) Subsystem: Lenovo Device 386f Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information <?> Kernel driver in use: agpgart-intel Kernel modules: intel-agp 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device 3870 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at fc000000 (32-bit, non-prefetchable) [size=512K] I/O ports at 1800 [size=8] Memory at d0000000 (32-bit, prefetchable) [size=256M] Memory at fc100000 (32-bit, non-prefetchable) [size=256K] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Kernel driver in use: i915 Kernel modules: i915 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03) Subsystem: Lenovo Device 3870 Flags: bus master, fast devsel, latency 0 Memory at fc080000 (32-bit, non-prefetchable) [size=512K] Capabilities: [d0] Power Management version 2 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02) Subsystem: Lenovo Device 3be9 Flags: bus master, fast devsel, latency 0, IRQ 22 Memory at fc140000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel <?> Capabilities: [130] Root Complex Link <?> Kernel driver in use: HDA Intel Kernel modules: snd-hda-intel 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 00002000-00002fff Memory behind bridge: f6000000-f7ffffff Prefetchable memory behind bridge: 00000000f0000000-00000000f1ffffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Lenovo Device 3bea Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel <?> Capabilities: [180] Root Complex Link <?> 00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 I/O behind bridge: 00003000-00003fff Memory behind bridge: f8000000-f9ffffff Prefetchable memory behind bridge: 00000000f2000000-00000000f3ffffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Lenovo Device 3cb4 Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel <?> Capabilities: [180] Root Complex Link <?> 00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=04, subordinate=04, sec-latency=0 I/O behind bridge: 00005000-00005fff Memory behind bridge: 40000000-401fffff Prefetchable memory behind bridge: 0000000040200000-00000000403fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Lenovo Device 3beb Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel <?> Capabilities: [180] Root Complex Link <?> 00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=05, subordinate=05, sec-latency=0 I/O behind bridge: 00004000-00004fff Memory behind bridge: fa000000-fbffffff Prefetchable memory behind bridge: 00000000f4000000-00000000f5ffffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Lenovo Device 3cb6 Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel <?> Capabilities: [180] Root Complex Link <?> 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02) (prog-if 00 [UHCI]) Subsystem: Lenovo Device 3bec Flags: bus master, medium devsel, latency 0, IRQ 23 I/O ports at 1820 [size=32] Kernel driver in use: uhci_hcd 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02) (prog-if 00 [UHCI]) Subsystem: Lenovo Device 3bcd Flags: bus master, medium devsel, latency 0, IRQ 19 I/O ports at 1840 [size=32] Kernel driver in use: uhci_hcd 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02) (prog-if 00 [UHCI]) Subsystem: Lenovo Device 3bee Flags: bus master, medium devsel, latency 0, IRQ 18 I/O ports at 1860 [size=32] Kernel driver in use: uhci_hcd 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02) (prog-if 00 [UHCI]) Subsystem: Lenovo Device 3bef Flags: bus master, medium devsel, latency 0, IRQ 16 I/O ports at 1880 [size=32] Kernel driver in use: uhci_hcd 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02) (prog-if 20 [EHCI]) Subsystem: Lenovo Device 3bf0 Flags: bus master, medium devsel, latency 0, IRQ 23 Memory at fc344000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Kernel driver in use: ehci_hcd 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) (prog-if 01 [Subtractive decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=0a, subordinate=0a, sec-latency=32 Capabilities: [50] Subsystem: Lenovo Device 3bf1 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02) Subsystem: Lenovo Device 3bf2 Flags: bus master, medium devsel, latency 0 Capabilities: [e0] Vendor Specific Information <?> Kernel modules: leds-ss4200, intel-rng 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02) (prog-if 8a [Master SecP PriP]) Subsystem: Lenovo Device 3bf3 Flags: bus master, medium devsel, latency 0, IRQ 19 I/O ports at 01f0 [size=8] I/O ports at 03f4 [size=1] I/O ports at 0170 [size=8] I/O ports at 0374 [size=1] I/O ports at 1810 [size=16] Kernel driver in use: ata_piix 00:1f.2 SATA controller: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA AHCI Controller (rev 02) (prog-if 01 [AHCI 1.0]) Subsystem: Lenovo Device 3bf4 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 19 I/O ports at 18c8 [size=8] I/O ports at 18c0 [size=4] I/O ports at 18a8 [size=8] I/O ports at 180c [size=4] I/O ports at 18b0 [size=16] Memory at fc344400 (32-bit, non-prefetchable) [size=1K] Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [70] Power Management version 2 Kernel driver in use: ahci 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02) Subsystem: Lenovo Device 3bf5 Flags: medium devsel, IRQ 19 I/O ports at 18e0 [size=32] Kernel modules: i2c-i801 02:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02) Subsystem: Lenovo Device 3a2a Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at f6000000 (64-bit, non-prefetchable) [size=64K] Expansion ROM at <ignored> [disabled] Capabilities: [48] Power Management version 3 Capabilities: [50] Vital Product Data Capabilities: [58] Vendor Specific Information <?> Capabilities: [e8] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [d0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel <?> Capabilities: [160] Device Serial Number 00-1f-16-ff-fe-1f-85-a4 Kernel driver in use: tg3 Kernel modules: tg3 03:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01) Subsystem: Broadcom Corporation Device 04b5 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at f8000000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [58] Vendor Specific Information <?> Capabilities: [e8] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [d0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel <?> Capabilities: [160] Device Serial Number 97-ac-00-ff-ff-f4-00-21 Capabilities: [16c] Power Budgeting <?> Kernel driver in use: wl Kernel modules: wl, ssb Chris -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to 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