palteater
May 10th, 2018, 09:28 PM
Greetings
Computer: A HTPC with a non-overclocked Pentium G3256. No graphics card - using Intel integrated. Ran fine with 17.04 & 17.10.
I did:
sudo apt udate
sudo apt upgrade
sudo apt dist-upgrade
sudo apt autoremove
sudo do-release-upgrade
...and the thing did its thing for an hour.
Then after the reboot, I get the Ubuntu logo, one of the purple dots ligh up, then I get a slowly flickering screen. Mostly black, occasionally showing the boot list - the rows of [ OK ] Blah blah - that flashes into visibility for a split second and then disappears.
So I filmed it and froze the video and it seems to get stuck on:
[ OK ] Started GNOME Display Manager. Dispatcher Service....ystem changes.pp link was shut down...
Yes, it does say "ystem" there.
It doesn't react to CTRL+ALT+F1, F2, F3, etc - but it does reboot for a CTLR+ALT+DEL. If I whack the buttons frantically.
So I rebooted into GRUB (holding SHIFT during boot) and tried the root CLI. Didn't quite know what to do there, but found that apt commands generally failed. No access to database blah blah.
So I booted into recovery mode instead. This time I could CTRL+ALT-F2 into console, but every three seconds the system would apparently try restarting the X server or something, because I had to CTLR+ALT-F2 repeatedly to get back to my console and continue doing things. This time apt commands worked, but all I found was that everything supposedly installed as intended.
"systemctl stop gdm" stopped the intermittent terminal switch/flicker thing.
Tried reinstalling gdm:
sudo apt purge gdm gdm3
sudo apt install gdm3 ubuntu-desktop
systemctl restart gdm
No difference.
Tried "sudo apt install xserver-xorg" but had the latest version.
Tried appending "nomodeset" to grub. The difference was that it stopped flickering at the [ OK ] row and instead only flickered a single top row of:
"/dev/sda1: clean, 163518/1703969 files, 2214867/6811392 blocks"
I interpret that as just a general message, not something ominous.
Where do I go from here? I assume there may be clues in the many MANY bytes of /var/log/ files?
cat /var/log/Xorg.0.log | grep "(EE)"
gives me some rows about failing DRI. That sounds important. It also complains about missing GLX, which sounds less important. I somehow recall that GLX is for 3D whereas DRI is for 2D or some such?
Anyhow, that sounds like failing X drivers. Can I force-install Intel drivers or something?
Grateful for any clues.
Computer: A HTPC with a non-overclocked Pentium G3256. No graphics card - using Intel integrated. Ran fine with 17.04 & 17.10.
I did:
sudo apt udate
sudo apt upgrade
sudo apt dist-upgrade
sudo apt autoremove
sudo do-release-upgrade
...and the thing did its thing for an hour.
Then after the reboot, I get the Ubuntu logo, one of the purple dots ligh up, then I get a slowly flickering screen. Mostly black, occasionally showing the boot list - the rows of [ OK ] Blah blah - that flashes into visibility for a split second and then disappears.
So I filmed it and froze the video and it seems to get stuck on:
[ OK ] Started GNOME Display Manager. Dispatcher Service....ystem changes.pp link was shut down...
Yes, it does say "ystem" there.
It doesn't react to CTRL+ALT+F1, F2, F3, etc - but it does reboot for a CTLR+ALT+DEL. If I whack the buttons frantically.
So I rebooted into GRUB (holding SHIFT during boot) and tried the root CLI. Didn't quite know what to do there, but found that apt commands generally failed. No access to database blah blah.
So I booted into recovery mode instead. This time I could CTRL+ALT-F2 into console, but every three seconds the system would apparently try restarting the X server or something, because I had to CTLR+ALT-F2 repeatedly to get back to my console and continue doing things. This time apt commands worked, but all I found was that everything supposedly installed as intended.
"systemctl stop gdm" stopped the intermittent terminal switch/flicker thing.
Tried reinstalling gdm:
sudo apt purge gdm gdm3
sudo apt install gdm3 ubuntu-desktop
systemctl restart gdm
No difference.
Tried "sudo apt install xserver-xorg" but had the latest version.
Tried appending "nomodeset" to grub. The difference was that it stopped flickering at the [ OK ] row and instead only flickered a single top row of:
"/dev/sda1: clean, 163518/1703969 files, 2214867/6811392 blocks"
I interpret that as just a general message, not something ominous.
Where do I go from here? I assume there may be clues in the many MANY bytes of /var/log/ files?
cat /var/log/Xorg.0.log | grep "(EE)"
gives me some rows about failing DRI. That sounds important. It also complains about missing GLX, which sounds less important. I somehow recall that GLX is for 3D whereas DRI is for 2D or some such?
Anyhow, that sounds like failing X drivers. Can I force-install Intel drivers or something?
Grateful for any clues.