Messages in this thread | | | Date | Thu, 22 Jul 2004 13:36:00 -0400 | From | David Ford <> | Subject | Re: Video memory corruption during suspend |
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Just as a side note, all of the notebooks I have owned or worked on have had suspend issues. Linux just doesn't handle it very well. The common problems on resume are:
1. the screen is somehow switched to the external VGA port or port other than the LCD 2. the screen is 50% rolled; i.e. the whole screen has been shifted halfway down the screen with the bottom wrapping back up to the top 3. on a text console, the characters are garbage/high ascii/blocks 4. the back light is off and can't be turned back on
Of these I'm currently dealing with #1, 2, and 3. I can fix #1 by using the Function-Display key to step through displays until I have selected the LCD display again. I fix #2 by ctrl-alt-f1 and then back to X tty. I fix #3 by running setfont. I haven't had to deal with #4 in over a year, but I no longer have that notebook.
Chris root # lspci -vvv -s 0:00.0 00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge (rev 04) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- Latency: 0 Region 0: Memory at e8000000 (32-bit, prefetchable) [size=64M] Capabilities: [e4] #09 [d104] Capabilities: [a0] AGP version 2.0 Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4 Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>
Chris root # lspci -vvv -s 01:00.0 01:00.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 440 Go] (rev a3) (prog-if 00 [VGA]) Subsystem: Dell Computer Corporation: Unknown device 00d4 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop+ ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (1250ns min, 250ns max) Interrupt: pin A routed to IRQ 11 Region 0: Memory at fc000000 (32-bit, non-prefetchable) [size=16M] Region 1: Memory at e0000000 (32-bit, prefetchable) [size=128M] Region 2: Memory at dff80000 (32-bit, prefetchable) [size=512K] Expansion ROM at 80000000 [disabled] [size=128K] Capabilities: [60] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [44] AGP version 2.0 Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4 Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>
no DRI/FB.
David
Pavel Machek wrote:
>Hi! > > > >>My setup is: >>ASUS L3800C laptop, Radeon M7, i845 chipset, using DRI and radeonfb. >> >>Note that this is not specific to the kernel used, as I've been seeing >>similar corruption every now and then, most recently under 2.6.7 + >>ACPICA20040715 + swsusp2.0.0.100 (S3, S4), but also under 2.4 with S1 (but >>not with S4/swsusp2). >> >>I have a very simple script I use to suspend (i.e. basically echo $arg > >>/proc/acpi/sleep), which is usually started by acpid. Once the script is >>triggered (by pressing power / sleep button) and an X session is running, >>various red and green patches appear on the screen (the background image >>and the tinted terminal emulator), followed by the VT switch the PM code >>does. After resume and subsequent VT switch by the PM code the corruption >>is still visible. The screen is properly restored by a manual VT switch. >>The corruption is clearly related to the existing background pixmap, as >>moving the windows does not change its pattern. Oddly enough, starting a GL >>app such as glxgears and moving it into and out of focus also properly >>restores the screen. >> >> > >So what happens on 2.6.7 with swsusp1? Can you try vesafb (and fbdev >Xserver)? > > Pavel > > begin:vcard fn:David Ford n:Ford;David email;internet:david@blue-labs.org title:Industrial Geek tel;home:Ask please tel;cell:(203) 650-3611 x-mozilla-html:TRUE version:2.1 end:vcard
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