Occasional issues with Graphics on load Ubuntu 18.04
by jmgibson1981 from LinuxQuestions.org on (#4QNBS)
I'm running an Ubuntu 18.04 LTS LTSP server with one of my clients. Amd AM1 socket Sempron APU, Not sure of the gpu in it.
Every so often when they boot as soon as the LTSP display manager loads there are lines running through the screen. It almost looks like the resolution is wrong, or firmware isn't loading. Something like that. But I can't isolate it. What makes this hard is it only happens about half the time on boot. Other times it loads just fine.
LTSP is installed as per the instructions on their wiki in chroot mode. Interestingly enough the server is also my living room htpc and with almost identical hardware except a quad core cpu of the same AM1 socket it works fine, I've never seen a bad load. I'm lost.
How to isolate, else suggestions on what to try? It's a minor annoyance that I can't seem to solve. Never had this problem on 16.04.
LTS.conf for reference that I'm using. I tried forcing the resolution, but it doesn't seem to help the issue.
Code:[Default]
LDM_DIRECTX = "true"
RCFILE_01 = "/etc/ltsp/crontabs"
KEEP_SYSTEM_SERVICES = "ssh"
CRONTAB_01 = "USER=root"
CRONTAB_02 = "00 00 * * 7 /bin/echo 3 > /proc/sys/vm/drop_caches"
CRONTAB_03 = "00 00 * * 7 /sbin/swapoff -a && /sbin/swapon -a"
# this line is for debian & ubuntu 18.04
INIT_COMMAND_RM_NBD_CHECKUPDATE = "rm -rf /usr/share/ldm/rc.d/I01-nbd-checkupdate"
[media]
LDM_GUEST_LOGIN = "true"
LDM_LOGIN_TIMEOUT = "10"
LDM_SESSION = "openbox"
LDM_PASSWORD = "1981"
CRONTAB_09 = "00 03 * * * /usr/local/bin/mediastop"
[19201080]
XRANDR_DISABLE = "true"
X_MODE_0 = "1920x1080"
# master bedroom kodi
[70:85:c2:00:fd:aa]
LIKE = "media"
LIKE = "19201080"
LDM_USERNAME = "kodimbr"
HOSTNAME = "kodimbr"
Every so often when they boot as soon as the LTSP display manager loads there are lines running through the screen. It almost looks like the resolution is wrong, or firmware isn't loading. Something like that. But I can't isolate it. What makes this hard is it only happens about half the time on boot. Other times it loads just fine.
LTSP is installed as per the instructions on their wiki in chroot mode. Interestingly enough the server is also my living room htpc and with almost identical hardware except a quad core cpu of the same AM1 socket it works fine, I've never seen a bad load. I'm lost.
How to isolate, else suggestions on what to try? It's a minor annoyance that I can't seem to solve. Never had this problem on 16.04.
LTS.conf for reference that I'm using. I tried forcing the resolution, but it doesn't seem to help the issue.
Code:[Default]
LDM_DIRECTX = "true"
RCFILE_01 = "/etc/ltsp/crontabs"
KEEP_SYSTEM_SERVICES = "ssh"
CRONTAB_01 = "USER=root"
CRONTAB_02 = "00 00 * * 7 /bin/echo 3 > /proc/sys/vm/drop_caches"
CRONTAB_03 = "00 00 * * 7 /sbin/swapoff -a && /sbin/swapon -a"
# this line is for debian & ubuntu 18.04
INIT_COMMAND_RM_NBD_CHECKUPDATE = "rm -rf /usr/share/ldm/rc.d/I01-nbd-checkupdate"
[media]
LDM_GUEST_LOGIN = "true"
LDM_LOGIN_TIMEOUT = "10"
LDM_SESSION = "openbox"
LDM_PASSWORD = "1981"
CRONTAB_09 = "00 03 * * * /usr/local/bin/mediastop"
[19201080]
XRANDR_DISABLE = "true"
X_MODE_0 = "1920x1080"
# master bedroom kodi
[70:85:c2:00:fd:aa]
LIKE = "media"
LIKE = "19201080"
LDM_USERNAME = "kodimbr"
HOSTNAME = "kodimbr"