[SOLVED] Booting blind with slackware -current....

andrew.46 · 02-03-2012, 04:41 PM

I returned to -current with the new raft of upgrades + kernel 3.2.2 and have faced a small problem: I get a black screen halfway through boot-up and have to login blind. Graphics:

Code:

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)

Passing 'nomodeset' to the kernel allows clear bootup but of course X will not start. Am I alone with this?

slackass · 02-03-2012, 05:42 PM

No your not alone.
My laptop w/intel dose it also.
It has a large hard drive and I have no way of telling when it's doing a file system check.

edit:
I get the KDM login screen but it's just plain black half way through boot.
After playing with it awhile I found that it boots normally "sometimes".
Otherwise it's a very good system after the upgrade.
My boxes with Nvidia cards have no issues.

andrew.46 · 02-03-2012, 07:14 PM

Glad it is not just me then, my next computer will not have either intel graphics or broadcom wireless

.

willysr · 02-03-2012, 07:29 PM

my laptop also has Intel graphics, but it boots fine on -Current (32 bit)

slackass · 02-03-2012, 07:46 PM

Quote:

Originally Posted by willysr

my laptop also has Intel graphics, but it boots fine on -Current (32 bit)

Ok that's different than what I have.

Mine is 86_64 -Current with upgraded multi-libs

Cedrik · 02-03-2012, 07:48 PM

Maybe downgrade to previous kernel version :/

slackass · 02-03-2012, 07:56 PM

Quote:

Originally Posted by Cedrik

Maybe downgrade to previous kernel version :/

That would probably fix it but I'm betting that it will get fixed in the next few upgrades.

andrew.46 · 02-03-2012, 08:12 PM

Google seems to think this is a known problem (this time around!), some discussion here may be relevant:

http://lists.freedesktop.org/archive...ry/014316.html

which talks about this patch:

Code:

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2a3f707..51e7b58 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5808,12 +5808,15 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
 	if (is_lvds) {
 		temp = I915_READ(PCH_LVDS);
 		temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
-		if (HAS_PCH_CPT(dev))
+		if (HAS_PCH_CPT(dev)){
+			temp &= ~PORT_TRANS_SEL_MASK;
 			temp |= PORT_TRANS_SEL_CPT(pipe);
-		else if (pipe == 1)
-			temp |= LVDS_PIPEB_SELECT;
-		else
-			temp &= ~LVDS_PIPEB_SELECT;
+		} else {
+			if (pipe == 1)
+				temp |= LVDS_PIPEB_SELECT;
+			else
+				temp &= ~LVDS_PIPEB_SELECT;
+		}
 
 		/* set the corresponsding LVDS_BORDER bit */
 		temp |= dev_priv->lvds_border_bits;

All looks a little bit in flux at the moment though

. I shall test the patch after family BBQ and hopefully with this delay somebody else has already tested it

.

BTW my system is 32bit...

Edit: More discussion here and here.

slackass · 02-03-2012, 09:30 PM

Thanks andrew.46!

andrew.46 · 02-03-2012, 11:32 PM

Unfortunately when I patched 3.2.4 the problem remained

.

andrew.46 · 02-04-2012, 05:23 AM

Well, after booting and rebooting more times than I would care to mention I seem to solved this problem on my own setup although black screen and intel appears to be a multi-faceted problem and for some like Willysr not a problem at all! For reasons that I do not fully understand disabling S-Video output, which I never use, allows me to now see the full bootup with kernel 3.2.2. I have booted successfully half a dozen time with no mishap. Accomplished this by adding the following to the append section of lilo.conf:

Code:

video=SVIDEO-1:d

It seems to murkiest of hacks but it works well enough on my system so I am happy with this

.

Edit: dmesg shows the S-Video being turned off:

Code:

[    9.822072] [drm] forcing SVIDEO-1 connector OFF

allend · 02-04-2012, 08:14 PM

Quote:

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)

No problems for me with a similar chipset but no S-Video.

andrew.46 · 02-04-2012, 08:39 PM

Quote:

Originally Posted by allend

No problems for me with a similar chipset but no S-Video.

And in fact no problems with exactly the same machine running 13.37 with 2.6.37.6 although I had to run an xorg.conf with:

Code:

Section "Device"
Identifier "Card0"
Driver "intel"
Option "Shadow" "false"
Option "DRI" "false"
BoardName "Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)"
BusID "PCI:0:2:0"
EndSection

To prevent freezes and blank screens with video and some screensavers. I have sometimes considered the possibility that the graphics chip might actually be possessed

.

slackass · 02-09-2012, 03:28 PM

This last upgrade seems to have fixed mine.

andrew.46 · 02-10-2012, 01:39 AM

Quote:

Originally Posted by slackass

This last upgrade seems to have fixed mine.

Good news for you

. But the problem and fix remain on my system although I seem to be alone with this. Interesting to see if Slackware -next_release brings a few more people with the same problem, the fix is 100% effective here.