You have been subscribed to a public bug:
Device: Dell Precision 7530
In the BIOS, the Switchable Graphics option is deactived, which means only the
nVidia GPU is used.
When booting 19.04 beta live USB, the screen becomes very dark and
brightness cannot be adjusted. (The same issue happens with 18.04.2)
There is only a "nv_backlight" in /sys/class/backlight/ (i.e. no
intel_backlight):
$ ll /sys/class/backlight/
total 0
drwxr-xr-x 2 root root 0 Mar 27 09:36 ./
drwxr-xr-x 74 root root 0 Mar 27 09:28 ../
lrwxrwxrwx 1 root root 0 Mar 27 09:28 nv_backlight ->
../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-eDP-1/nv_backlight/
Trying to manually change brightness doesn't do anything:
$ sudo su
root@ubuntu:/home/ubuntu# cd /sys/class/backlight/nv_backlight
root@ubuntu:/sys/class/backlight/nv_backlight# ll
total 0
drwxr-xr-x 3 root root 0 Mar 27 09:28 ./
drwxr-xr-x 4 root root 0 Mar 27 09:28 ../
-r--r--r-- 1 root root 4096 Mar 27 09:37 actual_brightness
-rw-r--r-- 1 root root 4096 Mar 27 09:37 bl_power
-rw-r--r-- 1 root root 4096 Mar 27 09:28 brightness
lrwxrwxrwx 1 root root 0 Mar 27 09:37 device -> ../../card0-eDP-1/
-r--r--r-- 1 root root 4096 Mar 27 09:28 max_brightness
drwxr-xr-x 2 root root 0 Mar 27 09:28 power/
lrwxrwxrwx 1 root root 0 Mar 27 09:28 subsystem ->
../../../../../../../../class/backlight/
-r--r--r-- 1 root root 4096 Mar 27 09:28 type
-rw-r--r-- 1 root root 4096 Mar 27 09:28 uevent
root@ubuntu:/sys/class/backlight/nv_backlight# cat actual_brightness
100
root@ubuntu:/sys/class/backlight/nv_backlight# cat brightness
100
root@ubuntu:/sys/class/backlight/nv_backlight# cat max_brightness
100
root@ubuntu:/sys/class/backlight/nv_backlight# echo 50 > brightness
root@ubuntu:/sys/class/backlight/nv_backlight# cat brightness
50
Although the value is changed, the screen brightness doesn't change.
in dmesg, I can see the following:
[ 0.241878] ACPI: Added _OSI(Module Device)
[ 0.241878] ACPI: Added _OSI(Processor Device)
[ 0.241878] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.241878] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.241878] ACPI: Added _OSI(Linux-Dell-Video)
[ 0.241878] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[ 0.241878] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
[ 0.286326] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS01._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.286332] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.286334] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.286336] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS01._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.286339] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.286340] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.287096] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS02._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.287099] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.287101] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.287102] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS02._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.287105] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.287106] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.287858] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS03._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.287861] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.287863] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.287864] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS03._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.287867] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.287869] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.288614] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS04._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.288617] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.288619] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.288620] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS04._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.288623] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.288625] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.289376] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS05._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.289379] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.289381] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.289382] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS05._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.289385] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.289386] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.290131] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS06._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.290134] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.290136] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.290137] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS06._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.290140] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.290142] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.290892] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS07._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.290895] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.290897] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.290898] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS07._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.290900] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.290902] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.291646] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS08._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.291649] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.291651] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.291652] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS08._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.291654] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.291656] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.292401] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS09._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.292404] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.292406] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.292407] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS09._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.292410] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.292411] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.293113] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS10._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.293117] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.293119] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.293120] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS10._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.293122] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.293124] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.293871] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS11._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.293874] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.293876] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.293877] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS11._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.293880] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.293882] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.294528] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS12._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.294531] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.294533] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.294534] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS12._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.294537] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.294539] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.295286] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS13._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.295289] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.295291] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.295292] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS13._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.295295] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.295297] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296046] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS14._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296049] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296051] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296052] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS14._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296055] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296057] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296772] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.USR1._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296776] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296777] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296778] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.USR1._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296781] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296783] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296785] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.USR2._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296788] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296790] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296791] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.USR2._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296793] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296795] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296821] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS01._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296824] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296826] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296827] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS01._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296830] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296831] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296855] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS02._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296858] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296860] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296861] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS02._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296864] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296866] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296889] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS03._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296892] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296894] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296895] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS03._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296898] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296900] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296923] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS04._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296926] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296928] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296929] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS04._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296932] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296934] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296957] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS05._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296960] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296962] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296963] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS05._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296966] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296968] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296991] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS06._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.296994] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.296996] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.296997] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS06._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297000] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297002] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.297025] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS07._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297028] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297030] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.297031] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS07._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297034] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297036] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.297060] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS08._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297063] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297064] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.297065] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS08._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297068] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297070] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.297094] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS09._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297097] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297098] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.297099] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS09._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297102] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297104] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.297128] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS10._UPC], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297131] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297133] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.297134] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.SS10._PLD], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297136] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297138] ACPI: Skipping parse of AML opcode: Method (0x0014)
[ 0.297140] ACPI BIOS Error (bug): Failure creating
[\_SB.PCI0.XHC.RHUB.HS11.CAMB], AE_ALREADY_EXISTS (20181213/dswload2-324)
[ 0.297143] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20181213/psobject-221)
[ 0.297145] ACPI: Skipping parse of AML opcode: Device (0x5B82)
[ 0.301048] ACPI: 13 ACPI AML tables successfully acquired and loaded
[ 0.312924] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: xorg 1:7.7+19ubuntu12
ProcVersionSignature: Ubuntu 5.0.0-7.8-generic 5.0.0
Uname: Linux 5.0.0-7-generic x86_64
ApportVersion: 2.20.10-0ubuntu23
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperVersion: 1.402
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Mar 27 09:29:56 2019
DistUpgraded: Fresh install
DistroCodename: disco
DistroVariant: ubuntu
ExtraDebuggingInterest: No
GraphicsCard:
NVIDIA Corporation GP107GLM [Quadro P1000 Mobile] [10de:1cbb] (rev a1)
(prog-if 00 [VGA controller])
Subsystem: Dell GP107GLM [Quadro P1000 Mobile] [1028:1889]
LiveMediaBuild: Ubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190326.2)
MachineType: Dell Inc. Precision 7530
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/username.seed
boot=casper quiet splash ---
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/10/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.4.2
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.4.2:bd09/10/2018:svnDellInc.:pnPrecision7530:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct10:cvr:
dmi.product.family: Precision
dmi.product.name: Precision 7530
dmi.product.sku: 0889
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.97-1
version.libgl1-mesa-dri: libgl1-mesa-dri 19.0.0-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.4-1ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20180925-2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: amd64 apport-bug ce-qa-concern disco iso-testing ubuntu
--
Screen is very dark and brightness cannot be adjusted
https://bugs.launchpad.net/bugs/1821882
You received this bug notification because you are a member of Kernel Packages,
which is subscribed to linux in Ubuntu.
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
