apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452435/+files/ProcInterrupts.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452436/+files/ProcModules.txt
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apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452437/+files/PulseList.txt
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452438/+files/RfKill.txt
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Title:
apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452439/+files/UdevDb.txt
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Title:
apport information
** Tags added: apport-collected
** Description changed:
Yesterday Ubuntu asked me to reboot after automatic updates, and when I
rebooted it doesn't start up. Sometimes it stays on the Dell logo,
sometimes it goes to a black screen and doesn't get past that (not sure
apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452424/+files/CRDA.txt
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Title:
Black
apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452434/+files/ProcEnviron.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452425/+files/CurrentDmesg.txt
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apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452426/+files/IwConfig.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452427/+files/Lspci.txt
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Title:
apport information
** Attachment added: "Lsusb-t.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452430/+files/Lsusb-t.txt
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Title:
apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452432/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452433/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "Lspci-vt.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452428/+files/Lspci-vt.txt
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apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452429/+files/Lsusb.txt
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Title:
apport information
** Attachment added: "Lsusb-v.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452431/+files/Lsusb-v.txt
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Title:
Charles, very interesting. Though I wonder if yours is a different
problem, partly because it's not in tty mode at all (for me it's in a
graphical mode, sometimes with the Dell logo up). I can't seem to switch
to tty2 using Alt-F2 or Ctrl-Alt-F2 -- what are the exact keys you're
using?
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Just a note: in attempting to fix this issue I borked my laptop - after
disabling UEFI boot and then re-enabling it in the BIOS settings, I
couldn't boot at all. So I reinstalled Ubuntu and then was getting the
following issue after doing system updates (but still on the 5.4
kernel):
Just noting that I had this same issue on my Dell XPS 9550 laptop, which
has a 3840x2160 display. The workaround of setting GFXMODE=800x600 in
the grub config worked for me too, thanks! And of course had the nice
side effect of actually making the grub menu readable. :-)
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Good data point, thanks. It looks like there are some significant
differences between the 9550 and the 9560 that could explain that:
1) Next generation CPU: i7-6700HQ on the 9550 vs i7-7700HQ on the 9560
2) Intel HD graphics 530 on the 9550 vs 630 on the 9560
3) NVIDIA GTX 960M on the 9550 vs
apport information
** Attachment added: "acpidump.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452441/+files/acpidump.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1911352/+attachment/5452440/+files/WifiSyslog.txt
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The kernel it's trying to run (assuming it's the top one in the
"advanced options" boot list) is 5.8.0-36-generic.
I run apport-collect in case it helps -- boy, that's noisy in terms of
number of comments. :-)
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** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
Black screen on boot after 20.04 upgraded to kernel 5.8
To manage
Public bug reported:
Yesterday Ubuntu asked me to reboot after automatic updates, and when I
rebooted it doesn't start up. Sometimes it stays on the Dell logo,
sometimes it goes to a black screen and doesn't get past that (not sure
what causes each variation -- perhaps for reboot it does the Dell
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