Date: Thu, 18 Mar 2010 11:07:46 -0700 From: "Kevin Oberman" <oberman@es.net> To: d@delphij.net Cc: stable@FreeBSD.ORG, delphij@FreeBSD.ORG, jkim@FreeBSD.org Subject: Re: DPMS broken on ThinkPad T43 since update for amd64 support Message-ID: <20100318180746.208EB1CC26@ptavv.es.net> In-Reply-To: Your message of "Thu, 18 Mar 2010 10:01:51 PDT." <4BA25C7F.6060009@delphij.net>
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> Date: Thu, 18 Mar 2010 10:01:51 -0700 > From: Xin LI <delphij@delphij.net> > > Hi, > > On 2010/03/18 08:33, Kevin Oberman wrote: > > Since the update of DPMS to support amd64 on March 2, it has broken > > rather badly on my ThinkPad T43 laptop. The problem showed up on > > 8-stable built on March 3 and is still present after an update to stable > > of March 17. > > > > When in vty text mode, after the idle normal delay, the display blanks, > > but the backlight remains on, so the P in DPMS seems to be less than > > effective. At that point, the non-graphics display is dead. It never > > comes back when characters are entered. I can't get the display to come > > back without a reboot. > > > > I can, however, start X (and Gnome) and everything is fine. But > > switching back to any vty results in a blank screen. > > > > Any idea what happened and if there is a fix or workaround? Any data I > > can collect? > > > > The system is a uniprocessor Pentium-M: > > CPU: Intel(R) Pentium(R) M processor 2.00GHz (1995.01-MHz 686-class CPU) > > Origin = "GenuineIntel" Id = 0x6d8 Stepping = 8 > > Features=0xafe9fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,$ > > Features2=0x180<EST,TM2> > > AMD Features=0x100000<NX> > > > > My display is: > > vgapci0@pci0:1:0:0: class=0x030000 card=0x056e1014 chip=0x54601002 rev=0x00 hdr=0x00 > > vendor = 'ATI Technologies Inc. / Advanced Micro Devices, Inc.' > > device = 'Radeon X300 Mobility (M22) (RV370)' > > class = display > > subclass = VGA > > Looks like that the CPU runs on i386 mode (doesn't support amd64?) and > when the screen was blank (with back light) the kernel is still alive > (as you can switch to X? > > Cheers, > - -- > Xin LI <delphij@delphij.net> http://www.delphij.net/ > FreeBSD - The Power to Serve! Live free or die Yes, i386 only. (Pentium-M) and the system is fully functional. I can enter commands (very carefully) and they run. I can do 'startx' and gnome starts up correctly and the display works for X, but CTRL-ALT-F1 gives me a blank display until I re-boot. I can exit Gnome and blindly enter "shutdown -r now" and the system reboots as normal. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
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