[SOLVED]Strange problem with Optimus in HP dv4-5113tx

Question

Hi all.
I have arch64 installed in my new laptop with Optimus.
And the graphics drivers installation part strictly follows http://www.pavanky.com/archlinux-cuda-o … ge-kepler/
Although using bumblebee I can use `optirun` to run applications via nVIDIA GPU.
But I still can not work if I don't load the kernel with 'nomodeset' parameter.
If 'nomodeset' is not presented. The screen would be off after 'Waiting for uDEV events'.
Or if I compiled 'i915' module into initramfs the screen would be off immediately after the initramfs is loaded.
Even when blackscreen occurs X launches normally. I can check the log and I found nothing inproper there.
Here is my device info when vesa driver is used.
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
    Subsystem: Hewlett-Packard Company Device [103c:189a]
    Flags: fast devsel, IRQ 16
    Memory at d1000000 (64-bit, non-prefetchable) [size=4M]
    Memory at c0000000 (64-bit, prefetchable) [size=256M]
    I/O ports at 4000 [size=64]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
    Capabilities: [d0] Power Management version 2
    Capabilities: [a4] PCI Advanced Features
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK107 [GeForce GT 650M] [10de:0fd1] (rev a1) (prog-if 00 [VGA controller])
    Subsystem: Hewlett-Packard Company Device [103c:189a]
    Flags: bus master, fast devsel, latency 0, IRQ 16
    Memory at d0000000 (32-bit, non-prefetchable) [size=16M]
    Memory at a0000000 (64-bit, prefetchable) [size=256M]
    Memory at b0000000 (64-bit, prefetchable) [size=32M]
    I/O ports at 3000 [size=128]
    Expansion ROM at b2000000 [disabled] [size=512K]
    Capabilities: [60] Power Management version 3
    Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
    Capabilities: [78] Express Endpoint, MSI 00
    Capabilities: [b4] Vendor Specific Information: Len=14 <?>
    Capabilities: [100] Virtual Channel
    Capabilities: [128] Power Budgeting <?>
    Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
    Capabilities: [900] #19
Last edited by mrain (2012-09-16 02:07:10)

Answer 1

I've done a experiment.
First I boot the kernel with nomodeset parameter.
Then I use these commands to manually load intel drivers.
sudo modprobe -r i915
sudo modprobe i915 modeset=1
After that I get a black screen.