Re: Matrox G550 + mga driver hangs system
I tried to net install Stretch to my MGA550 machine, but kept getting segfaults
trying to configure network. So I restored a backup image of Jessie from another
machine to my MGA550 machine. It worked normally, so I dist-upgraded it to
Stretch on vtty 3. When done, I logged into :1 using startx with a good TDE
session. Then I exited and logged in in the greeter. That worked too. I logged
out, then tried to log back in, and got a black screen and no keyboard response.
I rebooted, and tried various cmdline options and switching back and forth
between graphical and multi-user targets for over an hour. Sometimes I'd get
black screen and no keyboard response. Sometimes X would start and immediately
exit. Sometimes a segfault would show up in dmesg. Sometimes a segfault would
show up in Xorg.0.log. I had a bug almost ready to file before figuring out
using multi-user.target how to reliably get a working TDE session using this
kernel cmdline:
root=LABEL=SS25deb9 ipv6.disable=1 net.ifnames=0 noresume vga=791 iomem=relaxed
I'm actually starting via a script, /usr/local/bin/tdestart:
#!/bin/sh
WINDOWMANAGER=/opt/trinity/bin/starttde startx
xserver-xorg-legacy is installed, and /usr/bin/Xorg perms are set to 4711.
Adding drm.debug=1 or drm.debug=0x0e to cmdline causes black screen, no KBD
response, and the following in dmesg & the journal:
kernel: mtrr: no MTRR for f4000000,2000000 found
kernel: [drm] Initialized
kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
kernel: [drm] No driver support for vblank timestamp query.
kernel: [drm] Initialized mga 3.2.1 20051102 for 0000:01:00.0 on minor 0
--
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/
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