Hey
I have the same laptop and have the same problem when i updated the
Kernel.
I've been running 2.6.35.22 which has no problems.
I initially updated to 2.6.38-8 which i thought at first had failed, but
noticed the screen was only usable (and i use that word very lightly) in
direct sunlight.
I've now updated to 2.6.38-10 which has the same problem as 2.6.38-8, no
back light on the monitor.
I'm currently viewing the laptop on 2.6.38-10 through an external
monitor so i can try to resolve the problem and can run any diagnostic
commands you require.
My onboard graphics card is the same and as follows with [sudo lshw -c
display]
*-display:0
description: VGA compatible controller
product: Mobile 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:46 memory:d0000000-d03fffff memory:c0000000-cfffffff
ioport:50f0(size=8)
*-display:1 UNCLAIMED
description: Display controller
product: Mobile 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2.1
bus info: pci@0000:00:02.1
version: 09
width: 64 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: latency=0
resources: memory:d3400000-d34fffff
Thanks,
Gary
** Tags added: apport-collected natty running-unity
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https://bugs.launchpad.net/bugs/740893
Title:
Kernel 2.6.38-7 completely dims screen on Intel GMA 4500M
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