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Full Discussion: Screen fading out and in.
Operating Systems Linux Ubuntu Screen fading out and in. Post 303003450 by kkeevv on Thursday 14th of September 2017 08:55:50 AM
Old 09-14-2017
Quote:
Originally Posted by Corona688
Are you in the physical terminal when this happens? (i.e. ctrl-alt-f1 -- ctrl-alt-f7 ) Terminal blanking there is a kernel option, I think.
No. It is happening at the GUI while doing simple things ie playing mine sweep, or using firefox. It even occurs if nothing is loaded. It is random, but i have noticed it happens more, the longer the computer is powered up. When I reboot the problem goes away. Sometimes I can spend hours on line with no problem. I let the PC set a few hours and come back and the problem starts or doesn't.

I have since removed Ubuntu from 1st ("dual boot") PC in order to test Solaris 11.

---------- Post updated 09-14-17 at 07:55 AM ---------- Previous update was 09-13-17 at 11:38 PM ----------

Quote:
Originally Posted by Corona688
There may also be options for controlling this hidden in /proc/acpi or /sys/, I've seen some laptop hardware do that.
That sounds reasonable to me, but what do I know.

There is one file in /proc/acpi named wakeup. I don't understand it's contents...

Device S-state Status Sysfs node
VBTN S4 *enabled platform:PNP0C0C:00
PCI0 S5 *disabled no-busSmilieci0000:00
PCI4 S5 *disabled pci:0000:00:1e.0
PCI2 S5 *disabled pci:0000:00:1c.0
PCI3 S5 *disabled
PCI1 S5 *disabled pci:0000:00:01.0
PCI5 S5 *disabled
PCI6 S5 *disabled
MOU S3 *disabled
USB0 S3 *enabled pci:0000:00:1d.0
USB1 S3 *enabled pci:0000:00:1d.1
USB2 S3 *enabled pci:0000:00:1d.2
USB3 S3 *enabled pci:0000:00:1d.3

/sys has numerous items.

I disabled suspend and haven't experienced the problem. I'm not saying that is the cause.

I installed Solaris on the other PC that had same problem with Ubuntu and it doesn't have that issue any longer.

Thank you folks for your feed back. When I get WIFI working on Solaris, I think I'll 86 Ubuntu. I prefer Solaris's layout.
 

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fp(7d)                                                                Devices                                                               fp(7d)

NAME
fp - Sun Fibre Channel port driver DESCRIPTION
The fp driver is a Sun fibre channel nexus driver that enables fibre channel topology discovery, device discovery, fibre channel adapter port management and other capabilities through well-defined fibre channel adapter driver interfaces. The fp driver requires the presence of a fabric name server in fabric and public loop topologies to discover fibre channel devices. In pri- vate loop topologies, the driver discovers devices by performing PLOGI to all valid AL_PAs, provided that devices do not participate in LIRP and LILP stages of loop initialization. CONFIGURATION
The fp driver is configured by defining properties in the fp.conf file. The fp driver supports the following properties: mpxio-disable Solaris I/O multipathing is enabled or disabled on fibre channel devices with the mpxio-disable property. Specifying mpxio-disable="no" activates I/O multipathing, while mpxio-disable="yes" disables the feature. Solaris I/O multipathing may be enabled or disabled on a per port basis. Per port settings override the global setting for the specified ports. The following example shows how to disable multipathing on port 0 whose parent is /pci@8,600000/SUNW,qlc@4: name="fp" parent="/pci@8,600000/SUNW,qlc@4" port=0 mpxio-disable="yes"; manual_configuration_only Automatic configuration of SCSI devices in the fabric is enabled by default and thus allows all devices discovered in the SAN zone to be enumerated in the kernel's device tree automatically. The manual_configuration_only property may be configured to disable the default behavior and force the manual configuration of the devices in the SAN. Specifying manual_configuration_only=1 disables the automatic con- figuration of devices. FILES
/kernel/drv/fp 32-bit ELF kernel driver (x86) /kernel/drv/amd64/fp 64-bit ELF kernel driver (x86) /kernel/drv/sparcv9/fp 64-bit ELF kernel driver (SPARC) /kernel/drv/fp.conf fp driver configuration file. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |mpxio-disable |Unstable | +-----------------------------+-----------------------------+ |manual_configuration_only |Obsolete | +-----------------------------+-----------------------------+ |Availability |SUNWfctl | +-----------------------------+-----------------------------+ SEE ALSO
cfgadm_fp(1M), prtconf(1M), stmsboot(1M), driver.conf(4), attributes(5), fcp(7D), fctl(7D), scsi_vhci(7D) Writing Device Drivers Fibre Channel Physical and Signaling Interface (FC-PH) ANSI X3.230: 1994 Fibre Channel Generic Services (FC-GS-2) Project 1134-D Fibre Channel Arbitrated Loop (FC-AL) ANSI X3.272-1996 Fibre Channel Protocol for SCSI (FCP) ANSI X3.269-1996 SCSI-3 Architecture Model (SAM) Fibre Channel Private Loop SCSI Direct Attach (FC-PLDA) ANSI X3.270-1996 SCSI Direct Attach (FC-PLDA) ANSI X3.270-1996 SCSI Direct Attach (FC-PLDA) NCITS TR-19:1998 Fabric Loop Attachment (FC-FLA), NCITS TR-20:1998 SunOS 5.10 2 Dec 2004 fp(7d)
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