On 16.5.2013 18:11, Paolo Bonzini wrote:
Il 16/05/2013 17:48, Pavel Hrdina ha scritto:
From what I just tested it is the OS-independent HW behavior.
Tested on desktop:
1. Turn off the computer.
2. Turn on the computer and after few second open the CD-ROM tray before
any OS system is loaded and holding the power button turn the computer
off again. The CD-ROM tray should stay opened.
3. Turn on the computer and the CD-ROM tray is automatically closed.
When? Compared to the BIOS splash screen, for example.
Immediately after the computer is turned on. On HP Z400 workstation it
means before the monitor is turned on.
Next time I'll mention this test in the commit message.
It could mean it is done in the firmware.
What happens when you suspend the QEMU machine to RAM? I believe the
tray should remain open or, if closed, should remain locked. Can you
try the same test on bare-metal (hint: boot to emergency mode to bypass
anything that udev can do with locking the tray, then use sg_prevent to
toggle the state).
Paolo
I've booted to init 1, then ejected the CD-ROM tray and run the
pm-suspend. The computer has suspended successfully. And again
immediately after the computer is turned on before the screen is turned
on the CD-ROM tray is closed.
I don't have SCSI CD-ROM device to use the sg_prevent.
Pavel
