From: Matthew Hodgson <hidden> Date: 2007-02-13 01:07:31
Hi,
I have an obscure Pentium M motherboard with 855GME graphics
(http://www.ibase-i.com.tw/mb890.htm) which I'm trying to use with a DVI
monitor for video playback. On compiling intelfb into 2.6.20, the fb
fails to load with a boot option of video=intelfb:1024x768-24@75 with
intelfb: intelfb_init
intelfb: Framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM chipsets
intelfb: Version 0.9.4
intelfb: intelfb_setup
intelfb: options: 1024x768-24@75
intelfb: intelfb_pci_register
intelfb: fb aperture: 0xd8000000/0x8000000, MMIO region: 0xec080000/0x80000
intelfb: 00:02.0: Intel(R) 855GME, aperture size 128MB, stolen memory 32636kB
intelfb: fb: 0xd8000000(+ 0x0)/0x1fdf000 (0xde980000)
intelfb: MMIO: 0xec080000/0x80000 (0xe3980000)
intelfb: ring buffer: 0xdb001000/0x10000 (0xe1981000)
intelfb: HW cursor: 0x0/0x0 (0x00000000) (offset 0x0) (phys 0x0)
intelfb: options: vram = 4, accel = 1, hwcursor = 0, fixed = 0, noinit = 0
intelfb: options: mode = "1024x768-24@75"
intelfb: Non-CRT device is enabled ( DVO port C ). Disabling mode switching.
intelfb: Video mode must be programmed at boot time.
intelfb: cleanup
I'm confused: I thought that I /was/ trying to program the video mode at
boot time by specifying the video= boot option. Or is this trying to tell
me that there's actually no support of Non-CRT at all? Specifying vga=
options in lilo.conf and disabling/enabling vesafb doesn't seem to alter
the behaviour.
Should this work?
thanks,
Matthew.
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I have an obscure Pentium M motherboard with 855GME graphics
(http://www.ibase-i.com.tw/mb890.htm) which I'm trying to use with a DVI
monitor for video playback. On compiling intelfb into 2.6.20, the fb
fails to load with a boot option of video=intelfb:1024x768-24@75 with
intelfb: intelfb_init
intelfb: Framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM chipsets
intelfb: Version 0.9.4
intelfb: intelfb_setup
intelfb: options: 1024x768-24@75
intelfb: intelfb_pci_register
intelfb: fb aperture: 0xd8000000/0x8000000, MMIO region: 0xec080000/0x80000
intelfb: 00:02.0: Intel(R) 855GME, aperture size 128MB, stolen memory 32636kB
intelfb: fb: 0xd8000000(+ 0x0)/0x1fdf000 (0xde980000)
intelfb: MMIO: 0xec080000/0x80000 (0xe3980000)
intelfb: ring buffer: 0xdb001000/0x10000 (0xe1981000)
intelfb: HW cursor: 0x0/0x0 (0x00000000) (offset 0x0) (phys 0x0)
intelfb: options: vram = 4, accel = 1, hwcursor = 0, fixed = 0, noinit = 0
intelfb: options: mode = "1024x768-24@75"
intelfb: Non-CRT device is enabled ( DVO port C ). Disabling mode switching.
intelfb: Video mode must be programmed at boot time.
intelfb: cleanup
I'm confused: I thought that I /was/ trying to program the video mode at
boot time by specifying the video= boot option. Or is this trying to tell
me that there's actually no support of Non-CRT at all? Specifying vga=
options in lilo.conf and disabling/enabling vesafb doesn't seem to alter
the behaviour.
Should this work?
No, there is no support for non-crt devices in intelfb...
Dave.
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From: Marcus Better <hidden> Date: 2007-02-13 09:04:25
Dave Airlie wrote:
No, there is no support for non-crt devices in intelfb...
Does that mean that a laptop display (Thinkpad) won't work either?
Marcus
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From: Alex Deucher <hidden> Date: 2007-02-13 14:29:15
On 2/13/07, Marcus Better [off-list ref] wrote:
Dave Airlie wrote:
quoted
No, there is no support for non-crt devices in intelfb...
Does that mean that a laptop display (Thinkpad) won't work either?
correct.
Alex
Marcus
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From: Marcus Better <hidden> Date: 2007-02-13 17:41:48
Alex Deucher wrote:
quoted
Does that mean that a laptop display (Thinkpad) won't work either?
correct.
Well, that explains my problems then. :-)
Shouldn't this be documented somewhere (like in Kconfig or
Documentation/fb/intelfb.txt), or am I missing something obvious?
And didn't the i810fb driver work with laptops?
Marcus
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Does that mean that a laptop display (Thinkpad) won't work either?
correct.
Well, that explains my problems then. :-)
Shouldn't this be documented somewhere (like in Kconfig or
Documentation/fb/intelfb.txt), or am I missing something obvious?
And didn't the i810fb driver work with laptops?
No idea, I doubt it somehow, as there is no code to control the
external devices in either codebase, maybe i810 worked for some
reason,
maybe it should be documented, it does print it out when you boot that
it can't change the mode on non-CRT hardware..
Dave.
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