simple-scan throws error and crashes upon scanning document

[Michael A Capp]

[+0.00s] DEBUG: simple-scan.vala:1720: Starting simple-scan 3.36.3, PID=94430
[+0.00s] DEBUG: unsetenv() is not thread-safe and should not be used after threads are created
[+0.02s] DEBUG: _g_io_module_get_default: Found default implementation dconf (DConfSettingsBackend) for ‘gsettings-backend’
[+0.06s] DEBUG: app-window.vala:1906: Loading state from /home/mcapp/.cache/simple-scan/state
[+0.06s] DEBUG: app-window.vala:1885: Restoring window to 600x400 pixels
[+0.38s] DEBUG: scanner.vala:1539: sane_init () -> SANE_STATUS_GOOD
[+0.38s] DEBUG: scanner.vala:1545: SANE version 1.0.29
[+0.38s] DEBUG: scanner.vala:1606: Requesting redetection of scan devices
[+0.38s] DEBUG: scanner.vala:828: Processing request
[+0.57s] DEBUG: app-window.vala:1981: Saving state to /home/mcapp/.cache/simple-scan/state
[+9.67s] DEBUG: app-window.vala:1981: Saving state to /home/mcapp/.cache/simple-scan/state
[+11.26s] DEBUG: scanner.vala:341: sane_get_devices () -> SANE_STATUS_GOOD
[+11.26s] DEBUG: scanner.vala:353: Device: name="brother4:net1;dev0" vendor="Brother" model="MFC-9130CW" type="MFC-9130CW"
[+11.55s] DEBUG: app-window.vala:1981: Saving state to /home/mcapp/.cache/simple-scan/state
[+11.70s] DEBUG: app-window.vala:1981: Saving state to /home/mcapp/.cache/simple-scan/state
[+12.68s] DEBUG: simple-scan.vala:1536: Requesting scan at 1200 dpi from device 'brother4:net1;dev0'
[+12.68s] DEBUG: scanner.vala:1674: Scanner.scan ("brother4:net1;dev0", dpi=1200, scan_mode=ScanMode.COLOR, depth=8, type=single, paper_width=0, paper_height=0, brightness=0, contrast=0, delay=3000ms)
[+12.68s] DEBUG: scanner.vala:828: Processing request
[+12.93s] DEBUG: app-window.vala:1981: Saving state to /home/mcapp/.cache/simple-scan/state
[+14.30s] DEBUG: app-window.vala:1981: Saving state to /home/mcapp/.cache/simple-scan/state
[+18.55s] DEBUG: scanner.vala:889: sane_open ("brother4:net1;dev0") -> SANE_STATUS_GOOD
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (0)
[+18.55s] DEBUG: scanner.vala:760: Option 0: name='(null)' title='Number of options' type=bool size=4 cap=soft-detect
[+18.55s] DEBUG: scanner.vala:763: Description: Read-only option that specifies how many options a specific devices supports.
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (1)
[+18.55s] DEBUG: scanner.vala:760: Option 1: name='(null)' title='Mode' type=group size=4 cap=advanced
[+18.55s] DEBUG: scanner.vala:763: Description:
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (2)
[+18.55s] DEBUG: scanner.vala:760: Option 2: name='mode' title='Scan mode' type=string size=30 values=["Black & White", "Gray[Error Diffusion]", "True Gray", "24bit Color", "24bit Color[Fast]"] cap=soft-select,soft-detect
[+18.55s] DEBUG: scanner.vala:763: Description: Select the scan mode
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (3)
[+18.55s] DEBUG: scanner.vala:760: Option 3: name='resolution' title='Scan resolution' type=int size=4 unit=dpi values=[100, 150, 200, 300, 400, 600, 1200, 2400, 4800, 9600] cap=soft-select,soft-detect
[+18.55s] DEBUG: scanner.vala:763: Description: Sets the resolution of the scanned image.
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (4)
[+18.55s] DEBUG: scanner.vala:760: Option 4: name='source' title='Scan source' type=string size=64 values=["FlatBed", "Automatic Document Feeder(left aligned)", "Automatic Document Feeder(centrally aligned)"] cap=soft-select,soft-detect
[+18.55s] DEBUG: scanner.vala:763: Description: Selects the scan source (such as a document-feeder).
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (5)
[+18.55s] DEBUG: scanner.vala:760: Option 5: name='brightness' title='Brightness' type=fixed size=4 unit=percent min=-50.000000, max=50.000000, quant=65536 cap=soft-select,soft-detect,inactive
[+18.55s] DEBUG: scanner.vala:763: Description: Controls the brightness of the acquired image.
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (6)
[+18.55s] DEBUG: scanner.vala:760: Option 6: name='contrast' title='Contrast' type=fixed size=4 unit=percent min=-50.000000, max=50.000000, quant=65536 cap=soft-select,soft-detect,inactive
[+18.55s] DEBUG: scanner.vala:763: Description: Controls the contrast of the acquired image.
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (7)
[+18.55s] DEBUG: scanner.vala:760: Option 7: name='(null)' title='Geometry' type=group size=4 cap=advanced
[+18.55s] DEBUG: scanner.vala:763: Description:
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (8)
[+18.55s] DEBUG: scanner.vala:760: Option 8: name='tl-x' title='Top-left x' type=fixed size=4 unit=mm min=0.000000, max=211.899994, quant=6553 cap=soft-select,soft-detect
[+18.55s] DEBUG: scanner.vala:763: Description: Top-left x position of scan area.
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (9)
[+18.55s] DEBUG: scanner.vala:760: Option 9: name='tl-y' title='Top-left y' type=fixed size=4 unit=mm min=0.000000, max=355.599991, quant=6553 cap=soft-select,soft-detect
[+18.55s] DEBUG: scanner.vala:763: Description: Top-left y position of scan area.
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (10)
[+18.55s] DEBUG: scanner.vala:760: Option 10: name='br-x' title='Bottom-right x' type=fixed size=4 unit=mm min=0.000000, max=211.899994, quant=6553 cap=soft-select,soft-detect
[+18.55s] DEBUG: scanner.vala:763: Description: Bottom-right x position of scan area.
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (11)
[+18.55s] DEBUG: scanner.vala:760: Option 11: name='br-y' title='Bottom-right y' type=fixed size=4 unit=mm min=0.000000, max=355.599991, quant=6553 cap=soft-select,soft-detect
[+18.55s] DEBUG: scanner.vala:763: Description: Bottom-right y position of scan area.
[+18.55s] DEBUG: scanner.vala:910: sane_get_option_descriptor (12)
[+18.55s] DEBUG: scanner.vala:571: sane_control_option (4, SANE_ACTION_SET_VALUE, "FlatBed") -> (SANE_STATUS_GOOD, "FlatBed")
[+18.55s] DEBUG: scanner.vala:571: sane_control_option (2, SANE_ACTION_SET_VALUE, "24bit Color[Fast]") -> (SANE_STATUS_GOOD, "24bit Color[Fast]")
[+18.55s] DEBUG: scanner.vala:483: sane_control_option (3, SANE_ACTION_SET_VALUE, 1200) -> (SANE_STATUS_GOOD, 1200)
[+18.55s] DEBUG: scanner.vala:553: sane_control_option (10, SANE_ACTION_SET_VALUE, option.range.max=211.880600) -> (SANE_STATUS_GOOD)
[+18.55s] DEBUG: scanner.vala:553: sane_control_option (11, SANE_ACTION_SET_VALUE, option.range.max=355.567444) -> (SANE_STATUS_GOOD)
[+18.55s] WARNING: scanner.vala:1249: The option brightness (5) is inactive and can't be set, please file a bug
[+18.55s] WARNING: scanner.vala:1249: The option contrast (6) is inactive and can't be set, please file a bug
[+26.79s] DEBUG: scanner.vala:1285: sane_start (page=0, pass=0) -> SANE_STATUS_GOOD
[+26.79s] DEBUG: scanner.vala:1312: sane_get_parameters () -> SANE_STATUS_GOOD
[+26.79s] DEBUG: scanner.vala:1324: Parameters: format=SANE_FRAME_RGB last_frame=SANE_TRUE bytes_per_line=29760 pixels_per_line=9920 lines=16700 depth=8
[+26.79s] DEBUG: simple-scan.vala:1431: Page is 9920 pixels wide, 16700 pixels high, 8 bits per pixel

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.