Have the same problem with my msi ge 600 laptop. Driver issue likely because I can adjast brightness switching to another video card.
lshw -c video *-display VGA compatible controller Madison [Mobility Radeon HD 5000 Series] Hynix Semiconductor (Hyundai Electronics) ID: 0 bus info: pci@0000:01:00.0 version: 00 64 bits 33MHz pm pciexpress msi vga_controller bus_master cap_list rom driver=fglrx_pci latency=0 IRQ:46 memory:e0000000-efffffff memory:f0020000-f003ffff ioport:d000(size=256) memory:f0000000-f001ffff
Have the same problem with my msi ge 600 laptop. Driver issue likely because I can adjast brightness switching to another video card.
lshw -c video
driver= fglrx_pci latency=0 e0000000- efffffff memory: f0020000- f003ffff ioport: d000(size= 256) memory: f0000000- f001ffff
*-display
VGA compatible controller
Madison [Mobility Radeon HD 5000 Series]
Hynix Semiconductor (Hyundai Electronics)
ID: 0
bus info: pci@0000:01:00.0
version: 00
64 bits
33MHz
pm pciexpress msi vga_controller bus_master cap_list rom
IRQ:46 memory: