Bug 1181810

Symptoms per bz 1177384.  May be a regression.

I installed leap 15.2 server from USB, not downloading updates.  System reboots fine, get login screen (not gui), then configure system.  Reboot again, no problems.  Installed updates from update repo which installed kernel 5.3.18-lp152.60-default.  Upon reboot, screen is black.

(Note: I previously had this system running 15.2 KDE with a kernel between .19 and .60.  When .60 installed, black screen presented.  I screwed up root and decided to reinstall, hence "server" not a gui installation.  Same problem though.  I wish I could tell you what intermediate kernel I had running first go round but I just don't know.)

Using guidance from 1177384, I logged in via ssh, added the 5.3.18-lp152.19-default radeon.ko module as /lib/modules/5.3.18-lp152.60-default/extra/radeon.ko, depmod, mkinitrd, reboot.  Display no longer black.

I have another system using this kernel with no issue.  Newer hardware, video card though.

Bad module:
name:           radeon
vermagic:       5.3.18-lp152.60-default SMP mod_unload modversions 
sig_id:         PKCS#7
signer:         openSUSE Secure Boot CA

Good module:
name:           radeon
vermagic:       5.3.18-lp152.19-default SMP mod_unload modversions 
sig_id:         PKCS#7
signer:         openSUSE Secure Boot CA




Below is inxi and lspci output for system which presents black screen.


xxxxxx:~ # inxi -ba
System:    Host: r1200gs Kernel: 5.3.18-lp152.60-default x86_64 bits: 64 compiler: gcc v: 7.5.0
           parameters: BOOT_IMAGE=/boot/vmlinuz-5.3.18-lp152.60-default root=UUID=1027b3a4-3cbe-4599-af60-2cfaa15f9dd9
           splash=silent mitigations=auto quiet
           Console: tty 0 dm: N/A Distro: openSUSE Leap 15.2
Machine:   Type: Desktop System: Gigabyte product: EP45-UD3P v: N/A serial: N/A Chassis: type: 3 serial: N/A
           Mobo: Gigabyte model: EP45-UD3P serial: N/A BIOS: Award v: F10 date: 02/05/2010
Battery:   Device-1: hidpp_battery_0 model: Logitech K520 serial: 2011-f9-e4-5c-f0 charge: N/A status: N/A
CPU:       Quad Core: Intel Core2 Quad Q6600 type: MCP arch: Core Merom speed: 1600 MHz min/max: 1600/2400 MHz
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM]
           vendor: Diamond Systems driver: radeon v: kernel bus ID: 01:00.0 chip ID: 1002:6779
           Display: server: No display server data found. Headless machine? resolution: <xdpyinfo missing>
           OpenGL: renderer: N/A v: N/A direct render: N/A
Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Gigabyte driver: r8169 v: kernel
           port: ce00 bus ID: 04:00.0 chip ID: 10ec:8168
           Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Gigabyte driver: r8169 v: kernel
           port: ae00 bus ID: 05:00.0 chip ID: 10ec:8168
Drives:    Local Storage: total: 15.01 TiB used: 7.85 TiB (52.3%)
Info:      Processes: 181 Uptime: N/A Memory: 7.77 GiB used: 177.1 MiB (2.2%) Init: systemd v: 234 runlevel: 3
           target: multi-user.target Compilers: gcc: N/A Shell: bash v: 4.4.23 running in: sshd (SSH) inxi: 3.1.00





01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM] (prog-if 00 [VGA controller])
        Subsystem: Diamond Multimedia Systems Radeon HD 6450
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 4 bytes
        Interrupt: pin A routed to IRQ 30
        Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 2: Memory at fdbc0000 (64-bit, non-prefetchable) [size=128K]
        Region 4: I/O ports at ee00 [size=256]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 3
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [58] Express (v2) Legacy Endpoint, MSI 00
                DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
                        ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
                        RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+
                        MaxPayload 128 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend-
                LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
                        ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-, OBFF Not Supported
                         AtomicOpsCap: 32bit- 64bit- 128bitCAS-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
                         AtomicOpsCtl: ReqEn-
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
                         Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
                         EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
        Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000fee01004  Data: 4024
        Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
        Capabilities: [150 v1] Advanced Error Reporting
                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
                AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
                        MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
                HeaderLog: 00000000 00000000 00000000 00000000
        Kernel driver in use: radeon
        Kernel modules: radeon




Below is inxi output for newer system with no display problems using same .60 kernel with no extra module.



System:    Host: localhost Kernel: 5.3.18-lp152.60-default x86_64 bits: 64 compiler: gcc v: 7.5.0 
           parameters: BOOT_IMAGE=/vmlinuz-5.3.18-lp152.60-default root=UUID=dc582df4-7e38-410b-903b-08be45ca96fe 
           splash=silent mitigations=auto quiet 
           Desktop: KDE Plasma 5.18.6 tk: Qt 5.12.7 wm: kwin_x11 dm: SDDM Distro: openSUSE Leap 15.2 
Machine:   Type: Desktop System: LENOVO product: 3228A2U v: ThinkCentre M92p serial: MJ757GM 
           Mobo: LENOVO model: MAHOBAY v: NO DPK serial: N/A BIOS: LENOVO v: 9SKT63AUS date: 03/21/2013 
CPU:       Quad Core: Intel Core i5-3470 type: MCP arch: Ivy Bridge speed: 3566 MHz min/max: 1600/3600 MHz 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Cedar [Radeon HD 5000/6000/7350/8350 Series] 
           vendor: Hightech Information System driver: radeon v: kernel bus ID: 01:00.0 chip ID: 1002:68f9 
           Display: x11 server: X.Org 1.20.3 compositor: kwin_x11 driver: ati,radeon unloaded: fbdev,modesetting,vesa 
           display ID: :0 screens: 1 
           Screen-1: 0 s-res: 3951x1200 s-dpi: 96 s-size: 1043x317mm (41.1x12.5") s-diag: 1090mm (42.9") 
           Monitor-1: DVI-0 res: 1920x1200 hz: 60 dpi: 94 size: 519x324mm (20.4x12.8") diag: 612mm (24.1") 
           Monitor-2: DVI-1 res: 1920x1200 hz: 60 dpi: 94 size: 519x324mm (20.4x12.8") diag: 612mm (24.1") 
           OpenGL: renderer: AMD CEDAR (DRM 2.50.0 / 5.3.18-lp152.60-default LLVM 9.0.1) v: 3.3 Mesa 19.3.4 compat-v: 3.1 
           direct render: Yes 
Network:   Device-1: Intel 82579LM Gigabit Network vendor: Lenovo driver: e1000e v: 3.2.6-k port: f040 bus ID: 00:19.0 
           chip ID: 8086:1502 
           Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 v: kernel port: d000 bus ID: 03:00.0 
           chip ID: 10ec:8168 
Drives:    Local Storage: total: 465.76 GiB used: 199.32 GiB (42.8%) 
Info:      Processes: 230 Uptime: 11:25:38  up 2 days 23:54,  5 users,  load average: 0.56, 0.44, 0.25 Memory: 15.56 GiB 
           used: 3.59 GiB (23.1%) Init: systemd v: 234 runlevel: 5 target: graphical.target Compilers: gcc: 7.5.0 alt: 7 
           Shell: bash (su) v: 4.4.23 running in: konsole inxi: 3.1.00