Dell Dimension 3100 with LCD screen loses video at end of boot
|Reported by:||MichaelCrawford||Owned by:||axeld|
|Keywords:||r34248, video, boot, safe mode, vga||Cc:|
|Has a Patch:||no||Platform:||x86|
This bug occurred while booting the x86 GCC2 Hybrid ISO on a CD-R, version hrev34248 - 2009-11-25.
I have a Dell Dimension 3100 that has an Intel 82915G / GV / 910 GL Express Chipset for the video, according to the Windows XP device manager. It has a 2.8 GHz Pentium 4 and 1 GB of RAM.
The video card has only a VGA connection - no DVI. I have it connected to a 1400 by 900 Acer AL1917W A LCD display with a VGA-to-VGA cable.
When Haiku boots, I see the progress of the boot icons, then the screen goes black, with the display's firmware showing the message "Adjusting Config". I think that might mean it has been set to an unsupported resolution. After a few seconds the config message disappears and then the screen just stays black.
I tried several of the safe video modes. Standard VGA ended up with a screen that was mostly black, but with some small white bars right at the top of the screen. All the other video modes were totally black.
The unit doesn't have a serial port, but if a PCI serial card would work for debugging I could plug one in.
I have some DVI video cards that might work, but this particular configuration should be supported.
I speculate that what is happening is that the safe video mode is retained only during the progress of the boot, with the mode being changed to other values at the end of boot, perhaps as a result of auto-detecting the display's normal resolution.
I'd like to learn to write Haiku hardware drivers. If you can give me a little hand-holding, maybe I can debug this myself.
I'll get back to you with the results of trying a DVI video card.
Change History (19)
comment:4 by , 10 years ago
|Component:||Audio & Video → Drivers/Graphics/intel_extreme|