On Fri, December 29, 2017 11:56 pm, Ivan Ivanov wrote: > Maybe its just a driver which can't find a blob - by itself the GPU > should have this blob loaded on it by coreboot. > https://bugs.freedesktop.org/show_bug.cgi?id=101473 > Alex Deucher says that "Invalid PCI ROM header signature: expecting > 0xaa55, got 0x0000" message can be ignored > > > BTW this "0x0000" issue is not G505S specific, seems T400s also has it > - https://lists.gnu.org/archive/html/libreboot/2016-05/msg00050.html
There were other issues with it too, like at one point the IRQ was set to 255 and it always an <unassigned> memory region. Hard to troubleshoot without having it in front of you. > There aren't many coreboot supported laptops with dual GPU perhaps > thats why its not fixed yet Probably this. > Also, maybe it could be possible to somehow pass a copy of that > vgabios blob from GRUB to a Linux kernel, so that its' driver detects this > blob. If i'm not mistaken i've seen the people trying it for their Mac Pro > (similar problem but got another value, maybe 0xffff), forgot how its > ended though > > The research about GPUs is not over, we are going to continue it soon ;) Looking forward to it! -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/8d2f136210208d1f9a613efb6b60a521.squirrel%40tt3j2x4k5ycaa5zt.onion. For more options, visit https://groups.google.com/d/optout.
