Bug#963469: cdrom: /dev/sr0 scanned on and on for no visible reason
Hi, I am not aware of a package that is in charge for drive behavior. libburn or kernel are near the hardware. But i don't see this as libburn problem and for now not as a kernel problem either. It is unusual that an empty DVD drive makes noises, except when the tray was freshly loaded and the drive has a look whether there is a medium. So even if there is a process which periodically tries to read from the drive, this should be a silent thing. My first suspicion would be that the drive has problems to recognize media. - Does the drive still read DVDs ? - Do you see system log messages around the times when the drive is active ? - Does the noise happen while the computer is under control of its firmware (BIOS or EFI) waiting for some user input (e.g. in a setup screen) ? A bit far fetched: What text output do you get from a xorriso run with SCSI log while no medium is in the drive ? xorriso -scsi_log on -outdev /dev/sr0 >/tmp/xorriso_sr0.log 2>&1 The resulting file xorriso_sr0.log normally has 300 to 500 lines, which is probably too long for a bug report. So send it to scdbac...@gmx.net in private. I will then send my assessment to this bug report. Have a nice day :) Thomas
Bug#963469: cdrom: /dev/sr0 scanned on and on for no visible reason
Package: cdrom Severity: normal For no obvious reason, my current system started scanning /dev/sr0 (i.e. my DVD drive, even without any media inserted) about once every 30 to 60 seconds. After reboot, I wouldn't expect that behaviour to continue, but it did. Removing the entry "/dev/sr0 /media/cdrom0" from /etc/fstab didn't make that stop. For explanation: My DVD drive is loud. I don't want to hear the repositioning noise every so-and-so-seconds. And, who does this, for what reason? -- System Information: Debian Release: 10.4 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-9-amd64 (SMP w/6 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled
