Ubuntu
linux package

  1. Bug #405120
  2. Comment #22

Comment 22 for bug 405120

Revision history for this message
Louis-Dominique Dubeau (ldd) wrote : Re: resume from suspend doesn't work (powers off instead) for Acer Timeline 3810t

I've booted with debug turned on and did not see anything special. I've got a dump of dmesg with acpi.debug_layer=0xffff acpi.debug_level=0xfffff. I won't attach it unless someone specifically requests it. It is huge.

On the other hand, here is something which I had not paid attention to before (this appears in the dmesg even without acpi debugging turned on):

[ 31.206919] ata2.00: ACPI cmd 00/00:00:00:00:00:b0 rejected by device (Stat=0
x51 Err=0x04)
[ 31.207895] ata2.00: ACPI cmd ef/10:01:00:00:00:b0 rejected by device (Stat=0
x51 Err=0x04)
[ 31.208136] ata2.00: ACPI cmd ef/10:02:00:00:00:b0 rejected by device (Stat=0
x51 Err=0x04)
[ 31.208212] ata2.00: ACPI cmd ef/10:03:00:00:00:b0 filtered out
[ 31.208444] ata2.00: ACPI cmd ef/10:04:00:00:00:b0 rejected by device (Stat=0
x51 Err=0x04)
[ 31.208684] ata2.00: ACPI cmd ef/10:05:00:00:00:b0 rejected by device (Stat=0
x51 Err=0x04)

This is the kernel executing the drive's GTF. You can see the 4th command is filtered out by the kernel (i.e. it is not sent to the drive). I turned filtering off and found that the filtered command was the only command which the drive accepted. But even with filtering off, I was not able to resume.

I eventually removed the hard drive and booted from a USB stick but still was not able to resume.

I also tried acpi_power=s3_beep and did not hear any beep. (But I'm having a nagging doubt that there may not be a real *legacy* pc-speaker-style hardware on the laptop. I can't get the darn thing to beep when I'm booted in single user mode.)