Gentoo Archives: gentoo-user

From: "J. Roeleveld" <joost@××××××××.org>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] UEFI-fails to boot
Date: Wed, 31 Jan 2018 13:33:47
Message-Id: 1959155.SAyKRnIneE@andromeda
In Reply to: Re: [gentoo-user] UEFI-fails to boot by Dan Johansson
1 On Sunday, January 28, 2018 11:35:33 AM CET Dan Johansson wrote:
2 > On 28.01.2018 00:13, Corbin Bird wrote:
3 >
4 > Thanks for your feedback.
5 >
6 > > .
7 > > Thank you for that info.
8 > > .
9 > > What kind of integrated VGA?
10 > > ( example Intel i915, i965, etc. )
11 >
12 > According to the MB docu is it a "ASPEED AST2400 BMC" Video controller.
13 >
14 > > .
15 > > The reason I ask is that the EFI framebuffer you have enabled should be
16 > > built into a specific video driver.
17 > > My system has an "amdgpu" video card.
18 > > The EFI framebuffer driver for the console is enabled.
19 > > The specific video driver called "amdgpu" is also enabled.
20 > > The EFI framebuffer is built as a sub-component of the specific video
21 > > driver "amdgpu".
22 > > .
23 > >
24 > > Sample dmesg output :
25 > >> [ 6.223405] [drm] amdgpu kernel modesetting enabled.
26 > >> [ 6.223573] [drm] initializing kernel modesetting (POLARIS10
27 > >> 0x1002:0x67DF 0x1682:0x9480 0xC7)
28 > >> [ 6.882691] Console: switching to colour frame buffer device 240x67
29 > >> [ 6.900623] amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device
30 > >
31 > > .
32 > > If you haven't already run this command, please do so : lspci | grep -i
33 > > VGA
34 > # lspci | grep VGA
35 > 06:00.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED
36 > Graphics Family (rev 30)
37 >
38 > > If the video device is a 'Aspeed ASTxxxx', the version number of the
39 > > kernel you are using makes a big difference.
40 >
41 > # uname -r
42 > 4.9.76-gentoo-r1
43 >
44 > >> ASPEED's AST2500 Display To Be Supported By Linux 4.11's DRM
45 > >>
46 > >> https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/x-org-> >> drm/935002-aspeed-s-ast2500-display-to-be-supported-by-linux-4-11-s-drm
47 > Thanks for that link, I will have to look into that.
48 > Although I will not be using X on this box, as it is a server, it looks
49 > like I need to configure DRM.
50
51 On a system with the same mainboard:
52
53 zcat /proc/config.gz | grep -i drm
54 # CONFIG_DRM is not set
55
56
57 Eg, DRM is not necessary.
58
59 I don't reboot often enough to find it necessary to "fix" the UEFI boot. Mine
60 still goes into the EFI-shell and from there I start xen.
61
62 --
63 Joost