Artifacting on screen during boot process (GMA 950)

[skipster1337]

Hi, hope you are having a good day. I have an Acer Travelmate 2490 laptop with an Intel Celeron M 430 CPU, Intel 945GM chipset and GMA 950 graphics. I am running Haiku R1/beta4 hrev56578+96 x86_gcc2.

The issue is that by the end of the boot process, there is a frost effect / glitching / artifacting across the display, then it gets to the desktop and there is a ~1 minute period of faint flickering on the screen. Attached is a video of the problem.

I believe it’s because it’s trying to set an invalid video mode and the laptop panel has no precautions in place and foolishly takes whatever resolution you throw at it. This can also be seen if I set the resolution higher than 1280x800 in the system.

I tried booting with the VESA failsafe mode and no issue of such kind arises, but that's just a workaround.

Additionally, in the screen options, the panel model is referred to as DO NOT USE - AUO 15.4". I don't know if that's related.

[skipster1337]

Frosting artifact

[skipster1337]

I realized I was running a really old build. My apologies.

I booted off a newly created nightly usb (hrev57676) and the same issue appeared both in the live usb and in the installed system afterwards.