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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [xen iommu] After upgrading to Linux 3.19, desktop no longer works in Xen 4.5.0 dom0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90037#c26">Comment # 26</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [xen iommu] After upgrading to Linux 3.19, desktop no longer works in Xen 4.5.0 dom0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90037">bug 90037</a>
from <span class="vcard"><a class="email" href="mailto:lakshminarayana.vudum@intel.com" title="Lakshmi <lakshminarayana.vudum@intel.com>"> <span class="fn">Lakshmi</span></a>
</span></b>
<pre>(In reply to Ting-Wei Lan from <a href="show_bug.cgi?id=90037#c23">comment #23</a>)
<span class="quote">> (In reply to Lakshmi from <a href="show_bug.cgi?id=90037#c22">comment #22</a>)
> > Ting, sorry for the delay.
> >
> > Do you still have the issue?
> > If so, try to reproduce the issue using drm-tip
> > (<a href="https://cgit.freedesktop.org/drm-tip">https://cgit.freedesktop.org/drm-tip</a>) and kernel parameters drm.debug=0x1e
> > log_buf_len=4M, and if the problem persists attach the full dmesg from boot.
> >
> > This will speed up the investigation.
>
> Yes, the problem still exists. I could reproduce it with drm-tip commit
> 6dc8457a2f2093eecb9c6cbb7306fd25bb1664e6. I tested two times and the results
> were similar: all characters are broken and the system was unable to show
> GDM login screen. The system was accessible from SSH but it couldn't reboot.
> I ended up pressing 'R' on the Xen hypervisor console to reboot it.</span >
How often you see this issue? Every time you reboot?</pre>
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