Bugs item #1783936, was opened at 2007-08-29 14:20 Message generated for change (Comment added) made by technologov You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1783936&group_id=180599
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None >Status: Closed >Resolution: Fixed Priority: 5 Private: No Submitted By: Alain Knaff (alain_knaff) Assigned to: Nobody/Anonymous (nobody) Summary: Kubuntu-7.04 install: screen blank only during grub menu Initial Comment: When trying to but the Kubuntu 7.04 install CD in kvm 1:28-4ubuntu1, the screen goes blank at the place where the grub menu is supposed to be shown. After waiting a while, the kernel boots anyways (probably because grub was running after all, and only display was affected?), and the following messages show up in dmesg: [13733.460000] kvm: 17110: cpu0 unhandled wrmsr: 0xc0010004 [13733.460000] kvm: 17110: cpu0 unhandled wrmsr: 0xc0010000 [13733.460000] kvm: 17110: cpu0 unhandled wrmsr: 0xc0010004 [13733.460000] kvm: 17110: cpu0 unhandled wrmsr: 0xc0010000 I have an AMD Athlon 64 X2 Dual Core Processor 5200+ The blank screen problem also happens when removing the kvm module, but without the module, I don't get the "unhandled wrmsr" messages ---------------------------------------------------------------------- >Comment By: Technologov (technologov) Date: 2008-12-10 15:21 Message: Old bug. Closing. Should work on KVM-79. Reopen if it is still exists, -Alexey ---------------------------------------------------------------------- Comment By: Markus Rechberger (mrec) Date: 2007-12-18 19:28 Message: Logged In: YES user_id=1435858 Originator: NO Hi, this issue is fixed with kvm-56 Markus ---------------------------------------------------------------------- Comment By: Amit Shah (amitshah) Date: 2007-11-23 12:14 Message: Logged In: YES user_id=201894 Originator: NO Do you still need -std-vga with newer kvm versions? ---------------------------------------------------------------------- Comment By: Alain Knaff (alain_knaff) Date: 2007-09-01 12:25 Message: Logged In: YES user_id=1000433 Originator: YES Correction about the 100% CPU: Actually, kvm always consumes 100% CPU while in the grub menu. Even with -std-vga, and (without std-vga) even before the hang induced by ctrl+alt+f1 ---------------------------------------------------------------------- Comment By: Alain Knaff (alain_knaff) Date: 2007-09-01 12:21 Message: Logged In: YES user_id=1000433 Originator: YES Adding -std-vga to the kvm commandline makes the problem with the blank screen go away. However, now it prints "kvm: get_dirty_pages returned -2" to stderr multiple times. The wrmsr kernel messages still occur Oh, and even without the -std-vga switch I noticed something funny. Pressing ctrl+alt+1 (to get back) shows the grub screen, but after that the guest no longer reacts to keystrokes and kvm consumes 100% CPU. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1783936&group_id=180599 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html