** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1796574
Title:
Black screen on boot with AMD Radeon HD 7970/8970 OEM / R9 280X
Status in linux package in Ubuntu:
Invalid
Bug description:
[1]
Using the default "radeon" driver result in black screen on boot. Waiting
until what looks like X finish initializing, putting the computer to sleep and
awake it again almost always works as a workaround.
dmesg:
[ 5.165441] [drm:radeon_dp_link_train [radeon]] *ERROR* channel eq failed:
5 tries
[ 5.165453] [drm:radeon_dp_link_train [radeon]] *ERROR* channel eq failed
And it looks like the DisplayPort is not initialized correctly.
"Black screen" in this context means nothing works (no TTY:s).
[2]
Disabling si_support (GCN 1.0) in grub results in system always boot correct
from a shutdown state but awake from sleep doesn't work.
[3]
Switching to the experimental (for GCN 1.0 cards) amdgpu driver result in the
same behavior as in [2].
[xrandr]
DisplayPort-1 connected primary 2560x1440+0+0 (normal left inverted right x
axis y axis) 597mm x 336mm
2560x1440 59.95*+
1280x720 59.86
[lshw -c display]
*-display
description: VGA compatible controller
product: Tahiti XT [Radeon HD 7970/8970 OEM / R9 280X]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:02:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:57 memory:c0000000-cfffffff memory:fbe00000-fbe3ffff
ioport:e000(size=256) memory:c0000-dffff
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: andreas 2086 F.... pulseaudio
/dev/snd/controlC0: andreas 2086 F.... pulseaudio
/dev/snd/controlC1: andreas 2086 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=UUID=fa1b42ae-604b-448d-a294-6578ef07f7fe
InstallationDate: Installed on 2018-10-06 (0 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
MachineType: System manufacturer System Product Name
Package: linux (not installed)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-36-generic
root=/dev/mapper/ubuntu--vg-root ro splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-36-generic N/A
linux-backports-modules-4.15.0-36-generic N/A
linux-firmware 1.173.1
Tags: bionic
Uname: Linux 4.15.0-36-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo video
_MarkForUpload: True
dmi.bios.date: 12/25/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3305
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P9X79 DELUXE
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr3305:bd12/25/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP9X79DELUXE:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
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