Bug 1471703
| Summary: | HPE BL460c Gen9 blanks console during boot, nomodeset is required to see the output in ILO | ||||||
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| Product: | Red Hat Enterprise MRG | Reporter: | Andreas Bleischwitz <ableisch> | ||||
| Component: | realtime-kernel | Assignee: | Daniel Bristot de Oliveira <daolivei> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | Jiri Kastner <jkastner> | ||||
| Severity: | urgent | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 2.5 | CC: | ableisch, bhu, bugzilla-redhat, daolivei, lgoncalv | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2017-07-20 14:24:55 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
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Hi, An additional information, the customer already tried the kernel with the fix for the BZ1452769 (kernel-rt-3.10.0-514.rt56.228.el6rt.x86_64) but the problem is still reproducing. So, I requested the loan of an HPE BL460c Gen9 to try to reproduce the problem internally, but I am still waiting for the approval. Andreas, I saw that gsslab has a lot of HPE BL460c Gen9, so, while waiting for the load, could you please try to reproduce the problem in a GSSLAB box? This could speed up the fix. Thanks in advance, -- Daniel We found that kernel-commandline "video=640x400" rendered the console to blank. Changing this to "video=640x480" fixed that issue. We also confirmed that https://bugzilla.redhat.com/1452769 fixed that issue as the previous kernel blanked the console even with the correct video settings. So closing this case. |
Created attachment 1299749 [details] DMI-decode HPE BL460c Gen9 Description of problem: kernel-3.10.0-514.rt56.210.el6rt.x86_64 introduced a console video-mode switch, which renders the ILO-console to blank. In order to be able to bring back the output, one has to add "nomodeset" to the kernel-commandline. Version-Release number of selected component (if applicable): * HPE BL460c Gen9 * kernel-3.10.0-514.rt56.210.el6rt.x86_64 fails * kernel-3.10.0-514.el7 from RHEL7.3 GA does not suffer from that issue How reproducible: Steps to Reproduce: 1. Install kernel-3.10.0-514.rt56.210.el6rt.x86_64 on HPE BL460c Gen9 2. boot system and open ILO-console 3. see the system blanking after kernel-init Actual results: Console blanks and no output is shown Expected results: Output is printed until login-prompt Additional info: Kernel-commandline: root=/dev/mapper/VGlocal-LVroot rd_NO_LUKS rd_LVM_LV=VGlocal/LVswap LANG=en_US.UTF-8 rd_NO_MD rd_LVM_LV=VGlocal/LVroot KEYBOARDTYPE=pc KEYTABLE=de-latin1 crashkernel=256M rd_NO_DM SYSFONT=latarcyrheb-sun16 selinux=0 nosoftlockup mce=off printk.time=1 elevator=deadline intel_idle.max_cstate=0 processor.max_cstate=0 idle=poll NOHZ=on numa_balancing=disable noht ipmi_si.force_kipmid=0 nmi_watchdog=0 pcie_aspm=performance hpet=disabled nohalt nohz=on console=ttyS0,115200 console=tty0 consoleblank=0