Problem
video goes blank, pressing power button resumes the installation. The Power LED blinks in slow mode, similar to when a laptop goes in sleep mode. This keeps repeating, cannot complete installation.
CentOS 7 - 2003 - i386 - Minimal Install ISO
Laptop - Inspirion 6000 - 32 Bit System
Video Card - ATI Radeon X300
Hardware issue ruled out, SME Server was running on this system before. After multiple tries when i could not install CentOS just to be sure I installed SME Server 9.2 again, the option i use is graphics mode with vesa drivers.
There is absolutely NO problem whatsoever.
I have tried these parameters in Boot menu, (individually and in combination)
text, nomodeset, modprobe.blacklist=radeon, inst.driver=xforcevesa
the problem continues.
What exactly do i do to tell the Kernel not to go for any video drivers and just use pure text mode, like what SME Server installation does. In SME server i never had to configure any option, i just chose vesa option from a list
I am definitely missing something, Please help me identify it
Video goes blank / Install / Text mode
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- Posts: 2
- Joined: 2020/07/26 09:53:28
Re: Video goes blank / Install / Text mode
So i found the reason, it is ACPI. I turned it off in Kernel Boot Options acpi=off and that stopped the Laptop from going into Sleep.
other ACPI options -
pci=nocrs
Discard pci ACPI information. May fix boot problems.
pci=noacpi
Do not use ACPI for PCI bus management. May fix boot problems.
I understand ACPI is in place for a reason but for now i have turned it off and double checked that the problem does not occur.
Older version like 6.3 install fine without turning ACPI off, why i chose 6.3, because i had its .iso file. In the recent versions i think 7 onwards some changes have happened related to ACPI.
SME Server 9.3 is based on CentOS 6.9 so i never encountered this issue when installing or using it
I found a very informative link for Linux Kernel Parameters (for me - especially video & ACPI )
http://distro.ibiblio.org/fatdog/web/fa ... tions.html
other ACPI options -
pci=nocrs
Discard pci ACPI information. May fix boot problems.
pci=noacpi
Do not use ACPI for PCI bus management. May fix boot problems.
I understand ACPI is in place for a reason but for now i have turned it off and double checked that the problem does not occur.
Older version like 6.3 install fine without turning ACPI off, why i chose 6.3, because i had its .iso file. In the recent versions i think 7 onwards some changes have happened related to ACPI.
SME Server 9.3 is based on CentOS 6.9 so i never encountered this issue when installing or using it
I found a very informative link for Linux Kernel Parameters (for me - especially video & ACPI )
http://distro.ibiblio.org/fatdog/web/fa ... tions.html