Re: [Unichrome-users] bug report: incomplete screen draws

[Kevin M. <kev...@ri...>]

Barry Scott wrote:
> What Chip set rev do you have? You can get the answer by looking for
> these lines in the XFree/XOrg log file:
> 
> (--) VIA(0): Chipset: "CLE266"
> (--) VIA(0): mapping MMIO @ 0xdc000000 with size 0x9000
> (--) VIA(0): mapping BitBlt MMIO @ 0xdc200000 with size 0x10000
> (II) VIA(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x0000
> (--) VIA(0): Chipset Rev.: 18
> 
> If the Rev is 3 (in the example here it is 18) then it could be a bitblt bug
> that is in the Unichrome driver, but not in the code shipped with XFree86
> 4.4.0.
> (I don't have a fix.)
> 
> Barry
> 
> 
> 
>>-----Original Message-----
>>From: uni...@li...
>>[mailto:uni...@li...]On Behalf Of Kevin
>>McCormick
>>Sent: 20 November 2004 03:48
>>To: uni...@li...
>>Subject: [Unichrome-users] bug report: incomplete screen draws
>>
>>
>>I submitted this as a bug report.  BTW I have a mach-speed 623D
>>motherboard with the via cle266 video chip.  Perhaps I am misconfigured,
>>but I would have no idea how.
>>
>>Symptom 1:   Widgets such as radio buttons in dialog boxes sometimes are
>>rendered as black or grey rectangles.  This also occurs in some
>>java-based web pages with mozilla.  It seems like "sub windows" beyond a
>>certain "depth" are problematic (I'm a bit syntax challenged here).
>>
>>Symptom 2:  Areas of text are blanked with xedit, xterm. rxvt, xman.
>>Scrolling beyond the area and then back will fix the display, or the
>>window can be minimized and restored.
>>
>>Symptom 3:  The screen in general has a "washed out" appearance, not as
>>crisp as the via driver or my old ati ragePro (not bad, just not good -
>>like the SiS driver, but a little better).
>>
>>My system:  Slackware 10.0; and from /var/log/Xorg.0.log:
>>Release Date: 18 December 2003
>>X Protocol Version 11, Revision 0, Release 6.7
>>Build Operating System: Linux 2.6.7 i686 [ELF]
>>Current Operating System: Linux mars 2.6.7-epia1_w4l #1 Mon Aug 23
>>06:46:00 CDT 2004 i686
>>Build Date: 12 August 2004
>>
>>Unichrome driver source:
>>unichrome-X-r26
>>
>>
>>
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>>
> 
> 
> 
> 
Sorry for taking so long to respond -- holiday travels.  I did a "find" 
for 'chipset' and here is the requested info from my /var/log/Xorg.0.log 
file:

line 92
  (--) PCI:*(1:0:0) unknown vendor (0x1106) unknown chipset (0x3122) rev 
3, Mem @ 0xe4000000/26, 0xe8000000/24
* * * *
line 257
(II) VIA: driver for VIA chipsets: CLE266, KM400/KN400, K8M800,
	PM800/PM880/CN400
(II) Primary Device is: PCI 01:00:0
(--) Assigning device section with no busID to primary device
(--) Chipset CLE266 found
* * * *
line 345
(--) VIA(0): Chipset: "CLE266"
(--) VIA(0): mapping MMIO @ 0xe8000000 with size 0x9000
(--) VIA(0): mapping BitBlt MMIO @ 0xe8200000 with size 0x10000
(II) VIA(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x0000
(--) VIA(0): Chipset Rev.: 3
(--) VIA(0): Detected VIA EPIA M/MII/....
(II) VIA(0): BIOS Version: 0.39
(II) VIA(0): BIOS Release Date: 2003/10/9
(==) VIA(0): Using gamma correction (1.0, 1.0, 1.0)
(--) VIA(0): videoram =  32768k
* * * *

and this is from "lspci"

kevin acct-apps: $ /sbin/lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8623 [Apollo CLE266]
00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP]
00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL-8139/8139C/8139C+ (rev 10)
00:10.0 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 
controller] (rev 80)
00:10.1 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 
controller] (rev 80)
00:10.2 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 
controller] (rev 80)
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. 
VT82C586A/B/VT82C686/A/B/VT823x/A/C/VT8235 PIPC Bus Master IDE (rev 06)
00:11.5 Multimedia audio controller: VIA Technologies, Inc. 
VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
01:00.0 VGA compatible controller: VIA Technologies, Inc. VT8623 [Apollo 
CLE266] integrated CastleRock graphics (rev 03)

Regarding the patch file sent:

> I've attached a possible fix. A patch against via_accel.c. Could you
 > try it out and see if it restores functionality?
> 
> /Thomas

I really know very little about patching files.  My unichrome source is 
located in:

/tmp/x11-build/xc/programs/Xserver/hw/xfree86/drivers/unichrome-X-r27

I've looked at the patch file and compared it to the existing 
via_accel.c and it appears all the line numbers and - + indications are 
  consistent, so how do I do this?  (Is this incorporated in the new 
X-r28 file just posted?)

Thank you all for your responses.

Kevin