Gentoo Archives: gentoo-user

From: Helmut Jarausch <jarausch@××××××.be>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Gentoo-sources-4.9.0
Date: Wed, 14 Dec 2016 15:24:58
Message-Id: ePVr9FIzOa1sJ9libgAL16@SSAJd1x6K3ItYSsTwYKoE
In Reply to: [gentoo-user] Gentoo-sources-4.9.0 by Peter Humphrey
1 On 12/13/2016 06:09:19 PM, Peter Humphrey wrote:
2 > Hello list,
3 >
4 > Has anyone stumbled over a display problem with this kernel? Copying
5 > the
6 > .config from 4.8.14, tweaking with oldconfig and compiling left me
7 > with a
8 > blank display and no booting activity.
9 >
10 > The display card is an AMD/ATI Tonga Radeon R9 380X and I load the
11 > latest
12 > microcode during kernel compilation. I have VIDEO_CARDS="amdgpu
13 > radeonsi" in
14 > make.conf. Fine with earlier kernel versions but not with 4.9.0.
15 >
16
17 Hi, I think I had a similar problem when I switched from the
18 proprietary AMD driver to the
19 radeon driver.
20
21 The configuration below works just fine on vanilla-sources-4.9.0 .
22
23 I have VIDEO_CARDS="radeon radeonsi r600" (for an older AMD video card)
24
25 AND (following a hint of Alan McKinnon) the following kernel
26 configurations
27
28
29 #
30 # Frame buffer Devices
31 #
32 CONFIG_FB=y
33 CONFIG_FIRMWARE_EDID=y
34 CONFIG_FB_CMDLINE=y
35 CONFIG_FB_NOTIFY=y
36 CONFIG_FB_BOOT_VESA_SUPPORT=y
37 CONFIG_FB_CFB_FILLRECT=y
38 CONFIG_FB_CFB_COPYAREA=y
39 CONFIG_FB_CFB_IMAGEBLIT=y
40 CONFIG_FB_SYS_FILLRECT=m
41 CONFIG_FB_SYS_COPYAREA=m
42 CONFIG_FB_SYS_IMAGEBLIT=m
43 CONFIG_FB_SYS_FOPS=m
44 CONFIG_FB_DEFERRED_IO=y
45 CONFIG_FB_MODE_HELPERS=y
46 CONFIG_FB_TILEBLITTING=y
47
48 #
49 # Frame buffer hardware drivers
50 #
51 CONFIG_FB_VESA=y
52 CONFIG_FB_EFI=y
53 CONFIG_FB_SIMPLE=y
54 CONFIG_BACKLIGHT_LCD_SUPPORT=y
55 CONFIG_BACKLIGHT_CLASS_DEVICE=y
56 CONFIG_BACKLIGHT_GENERIC=y
57 CONFIG_HDMI=y
58
59 #
60 # Console display driver support
61 #
62 CONFIG_VGA_CONSOLE=y
63 CONFIG_VGACON_SOFT_SCROLLBACK=y
64 CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
65 CONFIG_DUMMY_CONSOLE=y
66 CONFIG_DUMMY_CONSOLE_COLUMNS=80
67 CONFIG_DUMMY_CONSOLE_ROWS=25
68 CONFIG_FRAMEBUFFER_CONSOLE=y
69 CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
70 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y