Athlon XP on biostar mobo with 1GB RAM running every thing before 9.04 with no problem - absolutely shut down since 10.04 to 31 January 2011.
As it so happened... changed Monitor Preferences resolution from 1920 x 1080 (16:9) 1.7 ratio to 1680 x 1050 (16:10) 1.6 ratio screen measures 20 x 11.25 (16:9) 1.7 ratio Probably will not change anything but it was easy and worth a shot. the spell-checking feature annoyed me. Cleared option in Preferences and Tomboy 1.4.2 unceremoniously blinked off. I officially caught a lucky break. Discovered fix while absolutely furious and no destruction occured. Shut down, stopped into BIOS since I noticed references to RAM and BIOS settings in many explanations regarding openchrome and this bug. Planned: :/: Reboot and determine function :/: toggle VGA SHARE MEMORY SIZE settings to verify root cause of MALF. :/: toggle VIDEO RAM CACHEABLE settings to verify root cause of MALF. BIOS CHANGE LOG (Bottom line) State A Verify w/monitor res 16:10 State 1 VGA SHARE 64M RAM CACHE ON PASS State 2 VGA SHARE 32M RAM CACHE ON FAIL State 3 VGA SHARE 64M RAM CACHE OFF PASS State 4 VGA SHARE 32M RAM CACHE OFF FAIL State B Verify w/monitor res 16:9 State 1 VGA SHARE 64M RAM CACHE ON PASS State 2 VGA SHARE 32M RAM CACHE ON FAIL State 3 VGA SHARE 64M RAM CACHE OFF PASS State 4 VGA SHARE 32M RAM CACHE OFF FAIL CONCLUSION: BIOS SETTING>ADVANCED SHIPSET FEATURE>AGP & P2P BRIDGE PROTOCOL>VGA SHARE MEMORY SIZE appears to be the single point failure starting with 10.04 onward. As a courtesy - I point out that should one for some reason select VGA SHARE MEMORY SIZE [Disabled] it may well appear that the mobo is fried, or there is an issue with either the video card (some more) or monitor. Likely there are normal beeps, but display shuts down without so much as a BIOS screen. Navigating BIOS blind has about a 2% chance of success. One may clear BIOS with a jumper in most cases, but one will still have to go through BIOS and put all things back in place. BIOS SETTING>CPU & BUS CONTROL setting VIDEO RAM CACHEABLE [Enabled or Disabled] setting does not impact login loop issue. Ubuntu 10.04, 10.10 & 11.04 (somehow got updated while I was sleeping) Monitor Preference Setting for Screen Resolution did not impact login loop issue for the two states tested (16:10 and 16:9). eyeshavings RECOMMENDATION: set bios VGA SHARE MEMORY SIZE to 64M or max. Thank you to every one that said something, I needed Every Bit of the input I got. I hope this is useful to the next update. Apologies for going on so much. Thanks again. ============== -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/706783 Title: [KM400] Xorg crash on Ubuntu 10.10 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
