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Answer» Hi everyone,
This is about a Dell Inspiron 5160, with NVIDIA GeForce FX Go5200 graphics, installed with dual-boot Windows XP and Fedora 14.
When I press the power button, the screen backlight comes on, but the screen is blank. Nothing is visible of the BIOS startup display, or GRUB. (I can still select options in GRUB by remembering where they were; but the BIOS menus I have no idea about, so I can only boot from the operating systems already installed on the internal hard drive.)
If I tell it to boot Fedora, after a short time the display appears, with some error messages at the top which I think started at the same time as this problem.
After that, Fedora appears to work fine.
If I connect an external monitor, that also displays nothing at the start. It SWITCHES itself on at the same time as the text appears on the built-in screen, SHOWING the same text itself. Fedora then goes into two-monitor mode.
If I boot Windows and log in, I can hear the Windows chime, but nothing appears on the screen. For a while after the problem started, if I tried this, then about 30 seconds after login, the computer put a snowstorm pattern on the screen and then powered off. But that seems to have fixed itself for now...
If I connect an external monitor, that switches itself on with "Windows is starting up" just before the login screen, and allows Windows to be used.
I don't remember whether or not an external monitor displayed the BIOS information and GRUB before the problem started.
If nothing at all appeared on the built-in screen, I would count this as a simple hardware failure. The mystery is that Fedora still works. I tried a search about invalid EDID checksums, but other people's problems are happening in Linux, while in my case Linux is the only thing still working.
Any ideas of the most likely cause for this?
The error message in the photo repeats 8 times in dmesg, the last 4 of them corresponding to the timestamps in the photo.
Code: [Select][ 1.636045] [drm] Initialized drm 1.1.0 20060810
[ 1.687968] nouveau 0000:01:00.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[ 1.693100] [drm] nouveau 0000:01:00.0: Detected an NV30 generation card (0x034400b1)
[ 1.693371] [drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PRAMIN
[ 1.744018] [drm] nouveau 0000:01:00.0: ... BIOS checksum invalid
[ 1.744023] [drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PROM
[ 1.744028] [drm] nouveau 0000:01:00.0: ... BIOS signature not found
[ 1.744032] [drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PCIROM
[ 1.744165] [drm] nouveau 0000:01:00.0: ... appears to be valid
[ 1.744485] [drm] nouveau 0000:01:00.0: BMP BIOS found
[ 1.744489] [drm] nouveau 0000:01:00.0: BMP version 5.39
[ 1.744493] [drm] nouveau 0000:01:00.0: Bios version 04.34.20.34
[ 1.744497] [drm] nouveau 0000:01:00.0: Found Display Configuration Block version 2.2
[ 1.744502] [drm] nouveau 0000:01:00.0: Raw DCB entry 0: 01010300 000088b8
[ 1.744506] [drm] nouveau 0000:01:00.0: Raw DCB entry 1: 03000323 00000004
[ 1.744510] [drm] nouveau 0000:01:00.0: Raw DCB entry 2: 02030321 00000703
[ 1.744694] [drm] nouveau 0000:01:00.0: Loading NV17 power sequencing microcode
[ 1.744700] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 0 at offset 0xED28
[ 1.748046] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 1 at offset 0xEFBA
[ 1.748060] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 2 at offset 0xF100
[ 1.748118] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 3 at offset 0xF2B9
[ 1.748125] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 4 at offset 0xF2D6
[ 1.748132] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 5 at offset 0xF2F3
[ 1.797704] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 6 at offset 0xF483
[ 1.797715] [drm] nouveau 0000:01:00.0: Detected 32MiB VRAM
[ 1.797822] [TTM] Zone kernel: Available graphics memory: 432624 kiB.
[ 1.797827] [TTM] Zone highmem: Available graphics memory: 1030542 kiB.
[ 1.797831] [TTM] Initializing pool allocator.
[ 1.798598] agpgart-intel 0000:00:00.0: AGP 2.0 bridge
[ 1.798621] agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode
[ 1.798671] nouveau 0000:01:00.0: putting AGP V2 device into 4x mode
[ 1.798694] [drm] nouveau 0000:01:00.0: 128 MiB GART (aperture)
[ 1.798745] [drm] nouveau 0000:01:00.0: Saving VGA fonts
[ 1.850853] [drm] nouveau 0000:01:00.0: Allocating FIFO number 0
[ 1.853316] [drm] nouveau 0000:01:00.0: nouveau_channel_alloc: initialised FIFO 0
[ 1.853335] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on vga encoder (output 0)
[ 1.853341] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on lvds encoder (output 1)
[ 1.853348] [drm] nouveau 0000:01:00.0: Calling LVDS script 1:
[ 1.853353] [drm] nouveau 0000:01:00.0: Calling LVDS script 6:
[ 1.853357] [drm] nouveau 0000:01:00.0: 0xDDBF: Parsing digital output script table
[ 2.354048] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on TV encoder (output 2)
[ 2.499930] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 208
[ 2.499983] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
...
[ 3.362695] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 208
[ 3.362783] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
[ 3.362842] <3>d0 ff ff ff ff ff ff 00 4c a3 58 43 00 00 00 00 ........L.XC....
[ 3.362845] <3>00 0d 01 03 80 1e 17 78 0a 87 f5 94 57 4f 8c 27 .......x....WO.'
[ 3.362849] <3>27 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 'PT.............
[ 3.362852] <3>01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88 [emailprotected]&0..
[ 3.362855] <3>36 00 30 e4 10 00 00 19 00 00 00 0f 00 00 00 00 6.0.............
[ 3.362858] <3>00 00 00 00 00 18 ee 02 74 00 00 00 00 fe 00 44 ........t......D
[ 3.362861] <3>31 31 38 35 04 31 35 30 58 43 0a 20 00 00 00 fe 1185.150XC. ....
[ 3.362864] <3>00 d0 c8 bf af 9f 80 5f 00 01 0a 20 20 20 00 A1 ......._... ..
[ 3.362867]
[ 3.362871] nouveau 0000:01:00.0: LVDS-1: EDID block 0 invalid.
[ 3.362875] [drm] nouveau 0000:01:00.0: DDC responded, but no EDID for LVDS-1
Please explain..
Quote Dell Inspiron 5160, with NVIDIA GeForce FX Go5200 graphics The Dell is a laptop. Do yo0u mean it has a separate video card?
Sorry, I did not know they could have separate video cards.
Dis you already see this on the Dell site?
http://en.community.dell.com/support-forums/laptop/f/3519/t/17022780.aspx
QuoteIt sounds like the video card is shot. Call Dell and get the thing replaced. The only other thing I can think of is that the driver for the card has to be reinstalled. As you have just gotten the thing, call Dell to make things right - in any case, reinstalling the video driver will be part of the troubleshooting routine that Dell will have you do. You can download a new video driver (well, new at least as far as Dell is concerned) from... Does that help any?
Does that laptop also have a built-in video card?
That person's problem has different symptoms; this can't be a driver problem because BIOS/GRUB isn't displaying; and this computer is well out of warranty. Yes, it has a separate video card. This might be a video card issue. According to the service manual, the video card is mounted far away from the LCD connector and VGA out. The video signal must go through other circuits on the motherboard before it reaches those connectors. Maybe if I removed the video card, onboard graphics would take over. Does anyone know if that is the case?
Maybe the Dell site would be a better place for my problem. I can try there later if I don't solve it here (or destroy the machine) first.You didn't clarify Geeks query...is it a laptop ? ?
If so there is no addon vid card that can be replaced...It is a laptop, and it has a GeForce FX Go video card which could be replaced if I had another ONE to try.
http://www.nvidia.co.uk/page/fx_mobile.html
Desktop video cards normally have the VGA output attached directly to the video card. Here, the VGA output is attached to the motherboard, and the video card is somewhere else entirely.
I guess the problem might be in the video card, or in the LCD module, or somewhere on the motherboard.
[recovering disk space, attachment deleted by admin]
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