W dniu czwartek, 4 maja 2017 19:16:33 UTC+2 użytkownik Vít Šesták napisał: > I have installed Qubes OS on a new laptop. Immediately after installing, I > decided to run qubes-dom0-update and then also qubes-dom0-update > --enablerepo=qubes-dom0-security-testing in order to patch recent Xen > vulnerabilities. > > Before reboot, Qubes worked smoothly. After reboot, the GUI is quite lazy – > mouse movement is slooow, typing lag is high (so I prefer tty over xfce > -terminal for performance reasons) etc. I haven't measured the lag exactly, > but it can be about 1s. > > So, I have looked at /var/log/Xorg.0.log. There are few errors, the first one > seems to be the root cause: > > open /dev/dri/card0: No such file or directory > > (I have retyped it, because it would be painful to copy&paste it.) > > Others are about GPU fallbacks and also “AIGLX: reverting to software > rendering”. > > So, my reconstruction is that /dev/dri does not exist and thus it to use HW > acceleration and thus it is so slow. It makes sense, except that I don't know > why /dev/dri is missing. It is reportedly created by kernel, so I assume it > is related to i915 module and/or newer kernel version. > > When I run lsmod | grep i915, it shows it is loaded. But it is apparently not > used, because I can rmmod it. I have tried to reinstall GPU drivers package, > but it did not help. > > My other idea was to boot Qubes with the old kernel. But I don't know how to > do it with UEFI boot. With Legacy boot, there is a Grub menu where I can > choose an old kernel, edit kernel cmdline etc. With UEFI boot, I can see > nothing like it. Just when I press F12 in early boot stage, I can select what > to boot, but I can select just Qubes here, without any options. > > What to do now? > > Configuration: > > * Dell Inspiron 15Z Touch 5578 > * Intel i7-7500U CPU > * No dedicated GPU (I hoped to have less issues when I have just the > integrated one…) > * UEFI boot. > > Regards, > Vít Šesták 'v6ak'
On my unstable kernel: 4.9.35-19, i had the same problem on my Lenovo T470p, what did i do that works well? I have removed the kernel option: nomodeset Now, /boot/efi/EFI/qubes/xen.cfg looks like this: ----- [global] default=4.9.35-19.pvops.qubes.x86_64 [4.9.35-19.pvops.qubes.x86_64] options=loglvl=all dom0_mem=min:1024M dom0_mem=max:4096M kernel=vmlinuz-4.9.35-19.pvops.qubes.x86_64 root=/dev/mapper/qubes_dom0-00 rd.luks.uuid=luks-06c35d45-4a71-4b89-973b-ef8f8aebc2a8 rd.lvm.lv=qubes_dom0/00 rd.lvm.lv=qubes_dom0/swap rhgb quiet ramdisk=initramfs-4.9.35-19.pvops.qubes.x86_64.img [4.9.35-19.pvops.qubes.x86_64] options=loglvl=all dom0_mem=min:1024M dom0_mem=max:4096M kernel=vmlinuz-4.9.35-19.pvops.qubes.x86_64 root=/dev/mapper/qubes_dom0-00 rd.luks.uuid=luks-06c35d45-4a71-4b89-973b-ef8f8aebc2a8 rd.lvm.lv=qubes_dom0/00 rd.lvm.lv=qubes_dom0/swap rhgb quiet ramdisk=initramfs-4.9.35-19.pvops.qubes.x86_64.img ----- Regards -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/d5d22b8d-c838-4f87-a466-2898fc12ba8c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
