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Maquis196
n00b
Joined: 02 Apr 2003
Posts: 62
Location: London
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 Posted: Mon Feb 12, 2024 12:47 pm Post subject: Starting X on a DEC Alpha |
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Hi, so after much compiling, and years of trying (including a bug found in the MGA driver that was fixed - thanks!), I'm struggling to actually get X running on this box.
| Code: |
[ 1399.159] (EE) Backtrace:
[ 1399.163] (EE) 0: /usr/bin/X (xorg_backtrace+0x7c) [0x2000119106c]
[ 1399.163] (EE) 1: /usr/bin/X (0x20001000000+0x196518) [0x20001196518]
[ 1399.167] (EE) 2: /lib/libc.so.6.1 (0x20000940000+0x485c0) [0x200009885c0]
[ 1399.167] (EE) 3: /usr/lib/xorg/modules/drivers/mga_drv.so (0x200014c0000+0x1a5c0) [0x200014da5c0]
[ 1399.167] (EE) 4: /usr/lib/xorg/modules/libexa.so (0x20001780000+0x5858) [0x20001785858]
[ 1399.167] (EE) 5: /usr/lib/xorg/modules/libexa.so (0x20001780000+0x5e54) [0x20001785e54]
[ 1399.167] (EE) 6: /usr/lib/xorg/modules/libexa.so (0x20001780000+0x68a0) [0x200017868a0]
[ 1399.169] (EE) 7: /usr/lib/xorg/modules/libexa.so (0x20001780000+0x4454) [0x20001784454]
[ 1399.169] (EE) 8: /usr/lib/xorg/modules/libexa.so (0x20001780000+0x9c04) [0x20001789c04]
[ 1399.171] (EE) 9: /usr/lib/xorg/modules/libexa.so (0x20001780000+0x105c8) [0x200017905c8]
[ 1399.173] (EE) 10: /usr/bin/X (0x20001000000+0xf2ec0) [0x200010f2ec0]
[ 1399.173] (EE) 11: /usr/bin/X (CompositePicture+0x228) [0x200010ffb88]
[ 1399.175] (EE) 12: /usr/bin/X (0x20001000000+0xd65d8) [0x200010d65d8]
[ 1399.176] (EE) 13: /usr/bin/X (0x20001000000+0xd0d0c) [0x200010d0d0c]
[ 1399.176] (EE) 14: /usr/bin/X (ProcessWorkQueue+0x4c) [0x2000109718c]
[ 1399.178] (EE) 15: /usr/bin/X (WaitForSomething+0xf4) [0x2000118d9b4]
[ 1399.180] (EE) 16: /usr/bin/X (0x20001000000+0x907e0) [0x200010907e0]
[ 1399.180] (EE) 17: /usr/bin/X (0x20001000000+0x95c68) [0x20001095c68]
[ 1399.182] (EE) 18: /usr/bin/X (0x20001000000+0x4db58) [0x2000104db58]
[ 1399.184] (EE) 19: /lib/libc.so.6.1 (0x20000940000+0x2cfb0) [0x2000096cfb0]
[ 1399.185] (EE) 20: /lib/libc.so.6.1 (__libc_start_main+0xc4) [0x2000096d0f4]
[ 1399.185] (EE) 21: /usr/bin/X (__start+0x38) [0x2000104dba8]
[ 1399.187] (EE)
[ 1399.187] (EE) Segmentation fault at address 0x0
[ 1399.189] (EE)
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The MGA driver appears to load, but the above happens and I'll then be unable to get the console back (on the monitor at least), serial/ssh unaffected.
Any ideas of what I could try? I've tried googling but not able to find anything similar. Happy to try another video driver, but theres not many on this platform.
Dmesg;
https://pastebin.com/GUYYepUz
xorg.log
https://pastebin.com/GXLntBrf |
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Maquis196
n00b
Joined: 02 Apr 2003
Posts: 62
Location: London
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| Posted: Tue Feb 13, 2024 12:43 pm Post subject: |
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Advice on IRC was to recompile with some debug flags to raise issue with upstream.
This included an upgrade to xorg-server but alas the segfault no longer happens, still a blank screen to the point the monitor turns off; new Xorg.log is here
https://pastebin.com/Tmzdv45m |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54245
Location: 56N 3W
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| Posted: Tue Feb 13, 2024 2:09 pm Post subject: |
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Maquis196,
Your log says
| Code: | [code][ 133.964] (==) Matched mga as autoconfigured driver 0
[ 133.965] (==) Matched modesetting as autoconfigured driver 1
[ 133.965] (==) Matched fbdev as autoconfigured driver 2[/code]
...
[ 134.072] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 134.074] (WW) Falling back to old probe method for modesetting
[ 134.074] (EE) open /dev/dri/card0: No such file or directory |
Its truncated too, which suggest bad things happened.
Generally (EE) open /dev/dri/card0, means Xorg cannot work. Certainly, modesetting, which is your fallback Xorg driver cannot work.
As I've never used MGA, I don't know if in needs DRM kernel support or not. That's one for #gentoo-alpha
Your GPU is | Code: | | [ 133.671] (--) PCI:*(0@0:9:0) 102b:0519 |
That's | Quote: | | a vendor: 102b ("Matrox Electronics Systems Ltd."), device: 0519 ("MGA 2064W [Millennium]") |
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Maquis196
n00b
Joined: 02 Apr 2003
Posts: 62
Location: London
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| Posted: Thu Feb 15, 2024 12:37 pm Post subject: |
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So irony is, using my regular `make.conf` settings, I get a segfault. When I recompile with my `debug.conf` settings. It doesn't segfault; it doesn't work either so still need to solve why I'm getting a blank screen. So once I get X working I'll revisit the segfault issue.
debug.conf
| Code: |
CFLAGS="-mieee -O0 -ggdb3 -pipe"
CXXFLAGS="${CFLAGS}"
FEATURES="nostrip installsources"
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make.conf
| Code: |
CFLAGS="-mieee -pipe -O2 -mcpu=pca56"
CXXFLAGS="${CFLAGS}"
CHOST="alpha-unknown-linux-gnu"
USE="-ldap -gnome -kde -minimal -qt4 -ssp dbus jpeg lock session startup-notification thunar X bindist gudev udev flac mp3 vorbis alsa opengl elogind"
## Global features, ccache is enabled per package
FEATURES="distcc"
L10N="en-GB en"
INPUT_DEVICES="evdev"
VIDEO_CARDS="mga"
CCACHE_SIZE="5G"
CCACHE_DIR="/var/cache/ccache"
PORTDIR="/usr/portage"
MAKEOPTS="-j17"
DISTDIR="${PORTDIR}/distfiles"
PKGDIR="${PORTDIR}/packages"
ACCEPT_KEYWORDS="~alpha"
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lastest Xorg log is https://pastebin.com/JxzvjWzD
Still just a blank screen where the monitor goes into sleep mode, but from the logs you'd never know.
huh, wonder if the env file is removing the mcpu flag... I'll have to run more experiments on that.
Last edited by Maquis196 on Thu Feb 15, 2024 7:41 pm; edited 1 time in total |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54245
Location: 56N 3W
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| Posted: Thu Feb 15, 2024 7:39 pm Post subject: |
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Maquis196,
The log is truncated. That means that something horrible happened, like it crashed and logging could not continue.
After you try to start Xorg, what is at the end of dmesg?
You will need to log in over ssh or use a serial console to see that.
Its unlikely the VT switching will work.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Maquis196
n00b
Joined: 02 Apr 2003
Posts: 62
Location: London
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| Posted: Thu Feb 15, 2024 7:48 pm Post subject: |
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Yep, have both serial and ssh up.
So without the crashing, and running `X -configure` I also get more from the Xorg.0.log ;
| Code: |
[ 166.314] (II) MGA(0): VESA BIOS detected
[ 166.317] (II) MGA(0): VESA VBE Version 2.0
[ 166.317] (II) MGA(0): VESA VBE Total Mem: 2048 kB
[ 166.317] (II) MGA(0): VESA VBE OEM: Matrox Graphics Inc.
[ 166.317] (II) MGA(0): VESA VBE OEM Software Rev: 2.2
[ 166.317] (II) MGA(0): VESA VBE OEM Vendor: Matrox
[ 166.317] (II) MGA(0): VESA VBE OEM Product: MILLENNIUM
[ 166.319] (II) MGA(0): VESA VBE OEM Product Rev: 00
[ 167.380] (II) MGA(0): VESA VBE DDC supported
[ 167.382] (II) MGA(0): VESA VBE DDC Level none
[ 167.383] (II) MGA(0): VESA VBE DDC transfer in appr. 0 sec.
[ 169.088] (II) MGA(0): VESA VBE DDC read failed
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but I think it fails to pick up what my monitor can do/monitor at all since I have;
| Code: |
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 4
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 8
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 15
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
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but I have some kind of xorg.conf to play around with now[/code] |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54245
Location: 56N 3W
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| Posted: Thu Feb 15, 2024 8:03 pm Post subject: |
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Maquis196,
| Code: | | [ 169.088] (II) MGA(0): VESA VBE DDC read failed |
That means that Xorg tried to read your display capabilities and failed.
Its been a long time since I've seen that. It's not a fatal error. Xorg goes on to use 640x480@60Hz unless you provide a
See
Being old and cynical, I don't have any autoblackmagic at all.
My /etc/X11/xorg.conf started life in 1999 and has accumulated a lot of cruft but it works for me today.
You may find odd fragments useful.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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